refactor: 重构转换器为模块化架构

✅ 新增转换器目录结构: converters/ ├── index.js (统一导出) ├── service-method-converter.js (主协调器) ├── syntax/ (语法转换) │ ├── basic-syntax.converter.js │ ├── type.converter.js │ └── exception.converter.js ├── utils/ (工具类转换) │ ├── config.converter.js │ ├── file.converter.js │ ├── string.converter.js │ ├── collection.converter.js │ ├── json.converter.js │ └── object.converter.js ├── mybatis/ (MyBatis转换) │ ├── query-wrapper.converter.js │ ├── mapper.converter.js │ └── pagination.converter.js ├── method/ (方法调用转换) │ ├── getter-setter.converter.js │ ├── method-call.converter.js │ └── stream-api.converter.js └── post-processor.js (后处理) ✅ 优势: - 单一职责：每个转换器只负责一种转换 - 易于维护：清晰的模块化结构 - 易于扩展：新增转换器只需添加新文件 - 易于测试：每个转换器可独立测试 📋 下一步: service-generator.js已自动兼容（不需要修改）
2025-10-29 14:28:10 +08:00
parent 84f2027fea
commit 17d096e4cb
21 changed files with 1198 additions and 302 deletions
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/index.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/index.js
@@ -0,0 +1,62 @@
+/**
+ * 转换器模块导出
+ * 
+ * 提供统一的转换器导出接口
+ */
+
+// 主转换器
+const ServiceMethodConverter = require('./service-method-converter');
+
+// 语法转换器
+const BasicSyntaxConverter = require('./syntax/basic-syntax.converter');
+const TypeConverter = require('./syntax/type.converter');
+const ExceptionConverter = require('./syntax/exception.converter');
+
+// 工具类转换器
+const ConfigConverter = require('./utils/config.converter');
+const FileConverter = require('./utils/file.converter');
+const StringConverter = require('./utils/string.converter');
+const CollectionConverter = require('./utils/collection.converter');
+const JsonConverter = require('./utils/json.converter');
+const ObjectConverter = require('./utils/object.converter');
+
+// MyBatis转换器
+const QueryWrapperConverter = require('./mybatis/query-wrapper.converter');
+const MapperConverter = require('./mybatis/mapper.converter');
+const PaginationConverter = require('./mybatis/pagination.converter');
+
+// 方法调用转换器
+const GetterSetterConverter = require('./method/getter-setter.converter');
+const MethodCallConverter = require('./method/method-call.converter');
+const StreamApiConverter = require('./method/stream-api.converter');
+
+// 后处理器
+const PostProcessor = require('./post-processor');
+
+module.exports = {
+  // 主转换器（推荐使用）
+  ServiceMethodConverter,
+  
+  // 子转换器（按需使用）
+  BasicSyntaxConverter,
+  TypeConverter,
+  ExceptionConverter,
+  
+  ConfigConverter,
+  FileConverter,
+  StringConverter,
+  CollectionConverter,
+  JsonConverter,
+  ObjectConverter,
+  
+  QueryWrapperConverter,
+  MapperConverter,
+  PaginationConverter,
+  
+  GetterSetterConverter,
+  MethodCallConverter,
+  StreamApiConverter,
+  
+  PostProcessor
+};
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/method/getter-setter.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/method/getter-setter.converter.js
@@ -0,0 +1,38 @@
+/**
+ * Getter/Setter转换器
+ * 
+ * Java getter/setter → TypeScript属性访问
+ */
+class GetterSetterConverter {
+  /**
+   * 转换getter/setter
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. obj.getXxx() → obj.xxx (只转换简单的getter)
+    // 但保留常见的业务方法如 getList(), getConfig()等
+    const commonMethods = ['getList', 'getConfig', 'getPage', 'getTotal', 'getData', 'getSearch', 'getLimit'];
+    
+    // 先处理需要保留的方法（不转换）
+    // 其他的 getXxx() 转换为属性访问
+    tsCode = tsCode.replace(/(\w+)\.get(\w+)\(\)/g, (match, obj, prop) => {
+      const methodName = `get${prop}`;
+      if (commonMethods.includes(methodName)) {
+        return match; // 保留不转换
+      }
+      // 转换为属性访问：obj.xxx
+      return `${obj}.${prop.charAt(0).toLowerCase() + prop.slice(1)}`;
+    });
+
+    // 2. obj.setXxx(value) → obj.xxx = value
+    tsCode = tsCode.replace(/(\w+)\.set(\w+)\(([^)]+)\)/g, (match, obj, prop, value) => {
+      return `${obj}.${prop.charAt(0).toLowerCase() + prop.slice(1)} = ${value}`;
+    });
+
+    return tsCode;
+  }
+}
+
+module.exports = GetterSetterConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/method/method-call.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/method/method-call.converter.js
@@ -0,0 +1,31 @@
+/**
+ * 方法调用转换器
+ * 
+ * Java方法调用 → TypeScript方法调用
+ */
+class MethodCallConverter {
+  /**
+   * 转换方法调用
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. list.add(item) → list.push(item)
+    tsCode = tsCode.replace(/(\w+)\.add\(/g, '$1.push(');
+
+    // 2. list.size() → list.length
+    tsCode = tsCode.replace(/(\w+)\.size\(\)/g, '$1.length');
+
+    // 3. map.put(key, value) → map[key] = value 或 map.set(key, value)
+    // 这里简化为直接赋值
+    tsCode = tsCode.replace(/(\w+)\.put\(([^,]+),\s*([^)]+)\)/g, '$1[$2] = $3');
+
+    // 4. map.get(key) → map[key] 或 map.get(key)
+    tsCode = tsCode.replace(/(\w+)\.get\(([^)]+)\)/g, '$1[$2]');
+
+    return tsCode;
+  }
+}
+
+module.exports = MethodCallConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/method/stream-api.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/method/stream-api.converter.js
@@ -0,0 +1,32 @@
+/**
+ * Stream API转换器
+ * 
+ * Java Stream API → TypeScript数组方法
+ */
+class StreamApiConverter {
+  /**
+   * 转换Stream API
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. list.stream().filter(x -> x.condition).collect(Collectors.toList())
+    //    → list.filter(x => x.condition)
+    tsCode = tsCode.replace(/(\w+)\.stream\(\)\.filter\(([^)]+)\)\.collect\(Collectors\.toList\(\)\)/g, '$1.filter($2)');
+
+    // 2. list.stream().map(x -> x.transform).collect(Collectors.toList())
+    //    → list.map(x => x.transform)
+    tsCode = tsCode.replace(/(\w+)\.stream\(\)\.map\(([^)]+)\)\.collect\(Collectors\.toList\(\)\)/g, '$1.map($2)');
+
+    // 3. list.stream() → list (简化)
+    tsCode = tsCode.replace(/(\w+)\.stream\(\)/g, '$1');
+
+    // 4. Collectors.toList() → (移除，因为TypeScript数组方法默认返回数组)
+    tsCode = tsCode.replace(/\.collect\(Collectors\.toList\(\)\)/g, '');
+
+    return tsCode;
+  }
+}
+
+module.exports = StreamApiConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/mybatis/mapper.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/mybatis/mapper.converter.js
@@ -0,0 +1,60 @@
+/**
+ * Mapper转换器
+ * 
+ * MyBatis Mapper → TypeORM Repository
+ */
+class MapperConverter {
+  /**
+   * 转换Mapper调用
+   */
+  convert(javaCode, context = {}) {
+    let tsCode = javaCode;
+
+    // xxxMapper.selectOne() → this.xxxRepository.findOne()
+    tsCode = tsCode.replace(/(\w+Mapper)\.selectOne\(/g, (match, mapperName) => {
+      const repoName = mapperName.replace('Mapper', 'Repository');
+      const camelRepoName = this.toCamelCase(repoName);
+      return `this.${camelRepoName}.findOne(`;
+    });
+
+    // xxxMapper.selectList() → this.xxxRepository.find()
+    tsCode = tsCode.replace(/(\w+Mapper)\.selectList\(/g, (match, mapperName) => {
+      const repoName = mapperName.replace('Mapper', 'Repository');
+      const camelRepoName = this.toCamelCase(repoName);
+      return `this.${camelRepoName}.find(`;
+    });
+
+    // xxxMapper.insert() → this.xxxRepository.save()
+    tsCode = tsCode.replace(/(\w+Mapper)\.insert\(/g, (match, mapperName) => {
+      const repoName = mapperName.replace('Mapper', 'Repository');
+      const camelRepoName = this.toCamelCase(repoName);
+      return `this.${camelRepoName}.save(`;
+    });
+
+    // xxxMapper.update() → this.xxxRepository.save()
+    tsCode = tsCode.replace(/(\w+Mapper)\.update\(/g, (match, mapperName) => {
+      const repoName = mapperName.replace('Mapper', 'Repository');
+      const camelRepoName = this.toCamelCase(repoName);
+      return `this.${camelRepoName}.save(`;
+    });
+
+    // xxxMapper.delete() → this.xxxRepository.delete()
+    tsCode = tsCode.replace(/(\w+Mapper)\.delete\(/g, (match, mapperName) => {
+      const repoName = mapperName.replace('Mapper', 'Repository');
+      const camelRepoName = this.toCamelCase(repoName);
+      return `this.${camelRepoName}.delete(`;
+    });
+
+    return tsCode;
+  }
+
+  /**
+   * 转换为camelCase
+   */
+  toCamelCase(str) {
+    return str.charAt(0).toLowerCase() + str.slice(1);
+  }
+}
+
+module.exports = MapperConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/mybatis/pagination.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/mybatis/pagination.converter.js
@@ -0,0 +1,30 @@
+/**
+ * 分页转换器
+ * 
+ * MyBatis分页 → TypeORM分页
+ */
+class PaginationConverter {
+  /**
+   * 转换分页
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // IPage<Entity> → TODO: 需要手动处理
+    tsCode = tsCode.replace(/IPage<(\w+)>/g, '/* TODO: Paginated<$1> */any');
+
+    // new Page<Entity>(page, limit) → TODO
+    tsCode = tsCode.replace(/new\s+Page<(\w+)>\(([^,]+),\s*([^)]+)\)/g, '/* TODO: { page: $2, limit: $3 } */');
+
+    // selectPage() → find() with pagination
+    tsCode = tsCode.replace(/\.selectPage\(/g, '/* TODO: .find() with take/skip */');
+
+    // PageResult.build() → new PageResult()
+    tsCode = tsCode.replace(/PageResult\.build\(([^,]+),\s*([^,]+),\s*([^)]+)\)/g, 'new PageResult({ currentPage: $1, perPage: $2, total: $3 })');
+
+    return tsCode;
+  }
+}
+
+module.exports = PaginationConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/mybatis/query-wrapper.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/mybatis/query-wrapper.converter.js
@@ -0,0 +1,28 @@
+/**
+ * QueryWrapper转换器
+ * 
+ * MyBatis QueryWrapper → TypeORM QueryBuilder
+ */
+class QueryWrapperConverter {
+  /**
+   * 转换QueryWrapper
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. new QueryWrapper<Entity>() → 需要转换为TypeORM查询
+    // 暂时标记为TODO，因为需要更复杂的上下文
+    tsCode = tsCode.replace(/new\s+QueryWrapper<(\w+)>\(\)/g, '/* TODO: TypeORM Query for $1 */{}');
+
+    // 2. queryWrapper.eq("field", value) → TODO
+    tsCode = tsCode.replace(/(\w+)\.eq\(([^,]+),\s*([^)]+)\)/g, '/* TODO: .where("$2 = :value", { value: $3 }) */$1');
+
+    // 3. queryWrapper.like("field", value) → TODO
+    tsCode = tsCode.replace(/(\w+)\.like\(([^,]+),\s*([^)]+)\)/g, '/* TODO: .where("$2 LIKE :value", { value: `%${$3}%` }) */$1');
+
+    return tsCode;
+  }
+}
+
+module.exports = QueryWrapperConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/post-processor.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/post-processor.js
@@ -0,0 +1,40 @@
+/**
+ * 后处理器
+ * 
+ * 修复转换后的常见语法错误
+ */
+class PostProcessor {
+  /**
+   * 后处理清理
+   */
+  process(tsCode) {
+    let result = tsCode;
+
+    // 1. 修复 this.fs. 和 this.path. → fs. 和 path.
+    result = result.replace(/this\.fs\./g, 'fs.');
+    result = result.replace(/this\.path\./g, 'path.');
+
+    // 2. 修复逻辑运算符优先级问题
+    // if (!this.config.get('xxx') === "yyy") → if (this.config.get('xxx') !== "yyy")
+    result = result.replace(/if\s*\(\s*!this\.config\.get\([^)]+\)\s*===\s*([^)]+)\)/g, (match) => {
+      const configCall = match.match(/this\.config\.get\([^)]+\)/)[0];
+      const value = match.match(/===\s*([^)]+)\)/)[1].trim();
+      return `if (${configCall} !== ${value})`;
+    });
+
+    // 3. 修复 !xxx === "yyy" → xxx !== "yyy" (通用)
+    result = result.replace(/!\s*([a-zA-Z_$.()[\]]+)\s*===\s*([^;)\n]+)/g, '$1 !== $2');
+
+    // 4. 修复复杂表达式的 .exists()
+    // this.config.get('xxx' + yyy).exists() → fs.existsSync(this.config.get('xxx' + yyy))
+    result = result.replace(/(this\.config\.get\([^)]+\))\.exists\(\)/g, 'fs.existsSync($1)');
+
+    // 5. 修复逗号表达式：if (file, "info.json".exists())
+    result = result.replace(/if\s*\(\s*(\w+),\s*"([^"]+)"\.exists\(\s*\)\s*\)/g, 'if (fs.existsSync(path.join($1, "$2")))');
+
+    return result;
+  }
+}
+
+module.exports = PostProcessor;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/service-method-converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/service-method-converter.js
@@ -1,18 +1,60 @@
-const NamingUtils = require('../utils/naming-utils');
-
 /**
- * Service方法体转换器
+ * Service方法体转换器（主协调器）
 * 
- * 职责：将Java Service方法体转换为TypeScript
+ * 职责：协调各个子转换器，将Java Service方法体转换为TypeScript
 * 
 * 核心功能：
 * 1. 提取Java方法体
- * 2. Java语法 → TypeScript语法转换
- * 3. Java工具类 → NestJS Boot层映射
+ * 2. 调用各个专业转换器进行转换
+ * 3. 后处理清理
+ * 4. 分析需要的imports
 */
+
+// 导入各个转换器
+const BasicSyntaxConverter = require('./syntax/basic-syntax.converter');
+const TypeConverter = require('./syntax/type.converter');
+const ExceptionConverter = require('./syntax/exception.converter');
+
+const ConfigConverter = require('./utils/config.converter');
+const FileConverter = require('./utils/file.converter');
+const StringConverter = require('./utils/string.converter');
+const CollectionConverter = require('./utils/collection.converter');
+const JsonConverter = require('./utils/json.converter');
+const ObjectConverter = require('./utils/object.converter');
+
+const QueryWrapperConverter = require('./mybatis/query-wrapper.converter');
+const MapperConverter = require('./mybatis/mapper.converter');
+const PaginationConverter = require('./mybatis/pagination.converter');
+
+const GetterSetterConverter = require('./method/getter-setter.converter');
+const MethodCallConverter = require('./method/method-call.converter');
+const StreamApiConverter = require('./method/stream-api.converter');
+
+const PostProcessor = require('./post-processor');
+
 class ServiceMethodConverter {
  constructor() {
-    this.namingUtils = new NamingUtils();
+    // 初始化所有转换器
+    this.basicSyntax = new BasicSyntaxConverter();
+    this.type = new TypeConverter();
+    this.exception = new ExceptionConverter();
+    
+    this.config = new ConfigConverter();
+    this.file = new FileConverter();
+    this.string = new StringConverter();
+    this.collection = new CollectionConverter();
+    this.json = new JsonConverter();
+    this.object = new ObjectConverter();
+    
+    this.queryWrapper = new QueryWrapperConverter();
+    this.mapper = new MapperConverter();
+    this.pagination = new PaginationConverter();
+    
+    this.getterSetter = new GetterSetterConverter();
+    this.methodCall = new MethodCallConverter();
+    this.streamApi = new StreamApiConverter();
+    
+    this.postProcessor = new PostProcessor();
  }

  /**
@@ -32,302 +74,55 @@ class ServiceMethodConverter {
    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    // 【阶段1】基础语法转换
    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    tsBody = this.convertBasicSyntax(tsBody);
+    tsBody = this.basicSyntax.convert(tsBody);

    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    // 【阶段2】类型转换
    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    tsBody = this.convertTypes(tsBody);
+    tsBody = this.type.convert(tsBody);

    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【阶段3】工具类映射（Java → NestJS Boot层）
+    // 【阶段3】工具类转换
    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    tsBody = this.convertUtilityClasses(tsBody);
+    tsBody = this.config.convert(tsBody);
+    tsBody = this.file.convert(tsBody);
+    tsBody = this.string.convert(tsBody);
+    tsBody = this.collection.convert(tsBody);
+    tsBody = this.json.convert(tsBody);
+    tsBody = this.object.convert(tsBody);

    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【阶段4】Mapper/Service调用转换
+    // 【阶段4】MyBatis → TypeORM转换
    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    tsBody = this.convertDependencyCalls(tsBody, context);
+    tsBody = this.queryWrapper.convert(tsBody);
+    tsBody = this.mapper.convert(tsBody, context);
+    tsBody = this.pagination.convert(tsBody);

    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【阶段5】后处理清理
+    // 【阶段5】方法调用转换
    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    tsBody = this.postProcessCleanup(tsBody);
+    tsBody = this.streamApi.convert(tsBody);
+    tsBody = this.methodCall.convert(tsBody);
+    tsBody = this.getterSetter.convert(tsBody); // 最后转换getter/setter

    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【阶段6】添加缩进
+    // 【阶段6】异常处理转换
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsBody = this.exception.convert(tsBody);
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【阶段7】后处理清理
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsBody = this.postProcessor.process(tsBody);
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【阶段8】添加缩进
    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    tsBody = tsBody.split('\n').map(line => '    ' + line).join('\n');

    return tsBody;
  }

-  /**
-   * 【阶段5】后处理清理
-   * 修复转换后的常见语法错误
-   */
-  postProcessCleanup(tsBody) {
-    // 1. 修复 this.fs. 和 this.path. → fs. 和 path.
-    tsBody = tsBody.replace(/this\.fs\./g, 'fs.');
-    tsBody = tsBody.replace(/this\.path\./g, 'path.');
-    
-    // 2. 修复逻辑运算符优先级问题
-    // if (!this.config.get('xxx') === "yyy") → if (this.config.get('xxx') !== "yyy")
-    tsBody = tsBody.replace(/if\s*\(\s*!this\.config\.get\([^)]+\)\s*===\s*([^)]+)\)/g, (match) => {
-      // 提取内容
-      const configCall = match.match(/this\.config\.get\([^)]+\)/)[0];
-      const value = match.match(/===\s*([^)]+)\)/)[1].trim();
-      return `if (${configCall} !== ${value})`;
-    });
-    
-    // 3. 修复 !xxx === "yyy" → xxx !== "yyy" (通用)
-    tsBody = tsBody.replace(/!\s*([a-zA-Z_$.()[\]]+)\s*===\s*([^;)\n]+)/g, '$1 !== $2');
-    
-    // 4. 修复复杂表达式的 .exists()
-    // this.config.get('xxx' + yyy).exists() → fs.existsSync(this.config.get('xxx' + yyy))
-    tsBody = tsBody.replace(/(this\.config\.get\([^)]+\))\.exists\(\)/g, 'fs.existsSync($1)');
-    
-    return tsBody;
-  }
-
-  /**
-   * 【阶段1】基础语法转换
-   */
-  convertBasicSyntax(javaBody) {
-    let tsBody = javaBody;
-
-    // 1. 变量声明：Type varName = value; → const varName: Type = value;
-    tsBody = tsBody.replace(
-      /(\b(?:Integer|Long|String|Boolean|Double|Float|BigDecimal|Object|List<[^>]+>|Map<[^>]+>|[\w<>,\s]+))\s+(\w+)\s*=\s*([^;]+);/g,
-      (match, type, varName, value) => {
-        const tsType = this.mapJavaTypeToTypeScript(type);
-        return `const ${varName}: ${tsType} = ${value};`;
-      }
-    );
-
-    // 2. for-each循环：for (Type item : collection) → for (const item of collection)
-    tsBody = tsBody.replace(/for\s*\(\s*[\w<>,\s]+\s+(\w+)\s*:\s*([^)]+)\)/g, 'for (const $1 of $2)');
-
-    // 3. Java实例化：new ArrayList<>() → []
-    tsBody = tsBody.replace(/new\s+ArrayList<[^>]*>\(\)/g, '[]');
-    tsBody = tsBody.replace(/new\s+LinkedList<[^>]*>\(\)/g, '[]');
-    tsBody = tsBody.replace(/new\s+HashMap<[^>]*>\(\)/g, '{}');
-    tsBody = tsBody.replace(/new\s+HashSet<[^>]*>\(\)/g, 'new Set()');
-
-    // 4. Lambda表达式：item -> expression → item => expression
-    tsBody = tsBody.replace(/(\w+)\s*->\s*/g, '$1 => ');
-    tsBody = tsBody.replace(/\(([^)]+)\)\s*->\s*/g, '($1) => ');
-
-    return tsBody;
-  }
-
-  /**
-   * 【阶段2】类型转换
-   */
-  convertTypes(javaBody) {
-    let tsBody = javaBody;
-
-    // 1. 基础类型
-    tsBody = tsBody.replace(/\bInteger\b/g, 'number');
-    tsBody = tsBody.replace(/\bLong\b/g, 'number');
-    tsBody = tsBody.replace(/\bDouble\b/g, 'number');
-    tsBody = tsBody.replace(/\bFloat\b/g, 'number');
-
-    // 2. Java对象类型
-    tsBody = tsBody.replace(/\bJSONObject\b/g, 'Record<string, any>');
-    tsBody = tsBody.replace(/\bId\b/g, 'number');
-
-    // 3. Java类型转换语法：(Type) value → value
-    tsBody = tsBody.replace(/\(\s*(?:int|long|double|float|String|Integer|Long|Double|Float|number)\s*\)\s*/g, '');
-
-    return tsBody;
-  }
-
-  /**
-   * 【阶段3】工具类映射
-   */
-  convertUtilityClasses(javaBody) {
-    let tsBody = javaBody;
-
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【配置访问】WebAppEnvs / GlobalConfig → ConfigService
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    
-    // WebAppEnvs.get().property.exists() → fs.existsSync(this.config.get('property'))
-    // 必须在WebAppEnvs.get().property之前处理
-    tsBody = tsBody.replace(/WebAppEnvs\.get\(\)\.(\w+)\.exists\(\)/g, (match, prop) => {
-      return `fs.existsSync(this.config.get('${prop}'))`;
-    });
-    
-    // WebAppEnvs.get().property → this.config.get('property')
-    tsBody = tsBody.replace(/WebAppEnvs\.get\(\)\.(\w+)/g, (match, prop) => {
-      return `this.config.get('${prop}')`;
-    });
-    tsBody = tsBody.replace(/WebAppEnvs\.get\(\)/g, 'this.config');
-    
-    // GlobalConfig.property.exists() → fs.existsSync(this.config.get('property'))
-    // 必须在GlobalConfig.property之前处理
-    tsBody = tsBody.replace(/GlobalConfig\.(\w+)\.exists\(\)/g, (match, prop) => {
-      return `fs.existsSync(this.config.get('${prop}'))`;
-    });
-    
-    // GlobalConfig.property → this.config.get('property')
-    tsBody = tsBody.replace(/GlobalConfig\.(\w+)/g, (match, prop) => {
-      return `this.config.get('${prop}')`;
-    });
-
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【文件操作】Java File API → Node.js fs/path
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    
-    // FileUtils工具类
-    tsBody = tsBody.replace(/FileUtils\.cleanDirectory\(([^)]+)\)/g, 'fs.rmSync($1, { recursive: true, force: true })');
-    tsBody = tsBody.replace(/FileUtils\.copyFile\(([^,]+),\s*([^)]+)\)/g, 'fs.copyFileSync($1, $2)');
-    tsBody = tsBody.replace(/FileUtils\.deleteDirectory\(([^)]+)\)/g, 'fs.rmSync($1, { recursive: true, force: true })');
-    tsBody = tsBody.replace(/FileUtils\.readFileToString\(([^)]+)\)/g, 'fs.readFileSync($1, \'utf-8\')');
-    tsBody = tsBody.replace(/FileUtils\.writeStringToFile\(([^,]+),\s*([^)]+)\)/g, 'fs.writeFileSync($1, $2, \'utf-8\')');
-    
-    // File API
-    tsBody = tsBody.replace(/new\s+File\(([^)]+)\)/g, '$1');
-    tsBody = tsBody.replace(/(\w+)\.exists\(\)/g, 'fs.existsSync($1)');
-    tsBody = tsBody.replace(/(\w+)\.isDirectory\(\)/g, 'fs.lstatSync($1).isDirectory()');
-    tsBody = tsBody.replace(/(\w+)\.getName\(\)/g, 'path.basename($1)');
-    tsBody = tsBody.replace(/(\w+)\.listFiles\(\)/g, 'fs.readdirSync($1)');
-    tsBody = tsBody.replace(/(\w+)\.getPath\(\)/g, '$1');
-
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【字符串方法】
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    
-    // .equals() → ===
-    tsBody = tsBody.replace(/([^!;,\s]+)\.equals\(([^)]+)\)/g, '$1 === $2');
-    
-    // .equalsIgnoreCase() → .toLowerCase() === xxx.toLowerCase()
-    tsBody = tsBody.replace(/([a-zA-Z_$][\w$.()]+)\.equalsIgnoreCase\(([^)]+)\)/g, '$1.toLowerCase() === $2.toLowerCase()');
-    
-    // .contains() → .includes()
-    tsBody = tsBody.replace(/\.contains\(/g, '.includes(');
-
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【集合判空】
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    
-    // CollectionUtil.isEmpty(list) → !list || list.length === 0
-    tsBody = tsBody.replace(/(?:CollectionUtil|CollUtil)\.isEmpty\(([^)]+)\)/g, '(!$1 || $1.length === 0)');
-    tsBody = tsBody.replace(/(?:CollectionUtil|CollUtil)\.isNotEmpty\(([^)]+)\)/g, '($1 && $1.length > 0)');
-    
-    // list.isEmpty() → list.length === 0
-    tsBody = tsBody.replace(/([a-zA-Z_$][\w$]*)\.isEmpty\(\)/g, '$1.length === 0');
-    tsBody = tsBody.replace(/!([a-zA-Z_$][\w$]*)\.isEmpty\(\)/g, '$1.length > 0');
-    
-    // StringUtils.isEmpty(str) → !str || str.trim() === ''
-    tsBody = tsBody.replace(/StringUtils\.isEmpty\(([^)]+)\)/g, '(!$1 || $1.trim() === \'\')');
-    tsBody = tsBody.replace(/StringUtils\.isNotEmpty\(([^)]+)\)/g, '($1 && $1.trim() !== \'\')');
-
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【异常处理】
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    
-    // try-catch语句：catch (Exception e) → catch (error)
-    tsBody = tsBody.replace(/catch\s*\(\s*(?:Exception|RuntimeException|Throwable)\s+(\w+)\s*\)/g, 'catch ($1)');
-    
-    // 异常方法调用：e.getMessage() → e.message
-    tsBody = tsBody.replace(/(\w+)\.getMessage\(\)/g, '$1.message');
-    
-    // 异常抛出
-    tsBody = tsBody.replace(/throw\s+new\s+CommonException\(/g, 'throw new BadRequestException(');
-    tsBody = tsBody.replace(/throw\s+new\s+AuthException\(/g, 'throw new UnauthorizedException(');
-    tsBody = tsBody.replace(/throw\s+new\s+RuntimeException\(/g, 'throw new Error(');
-    tsBody = tsBody.replace(/throw\s+new\s+Exception\(/g, 'throw new Error(');
-
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    // 【其他】
-    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-    
-    // System.out.println → console.log
-    tsBody = tsBody.replace(/System\.out\.println\(/g, 'console.log(');
-    tsBody = tsBody.replace(/System\.err\.println\(/g, 'console.error(');
-
-    return tsBody;
-  }
-
-  /**
-   * 【阶段4】Mapper/Service调用转换
-   */
-  convertDependencyCalls(javaBody, context) {
-    let tsBody = javaBody;
-
-    // Mapper调用：xxxMapper.method() → this.xxxRepository.method()
-    if (context.dependencies) {
-      context.dependencies.forEach(dep => {
-        if (dep.includes('Mapper')) {
-          const mapperName = dep;
-          const repoName = this.namingUtils.toCamelCase(dep.replace('Mapper', 'Repository'));
-          tsBody = tsBody.replace(new RegExp(`${mapperName}\\.`, 'g'), `this.${repoName}.`);
-        }
-      });
-    }
-
-    // Service调用：xxxService.method() → this.xxxService.method()
-    if (context.dependencies) {
-      context.dependencies.forEach(dep => {
-        if (dep.includes('Service') && !dep.includes('ServiceImpl')) {
-          const serviceName = this.namingUtils.toCamelCase(dep);
-          tsBody = tsBody.replace(new RegExp(`${dep}\\.`, 'g'), `this.${serviceName}.`);
-        }
-      });
-    }
-
-    return tsBody;
-  }
-
-  /**
-   * 映射Java类型到TypeScript
-   */
-  mapJavaTypeToTypeScript(javaType) {
-    // 处理泛型
-    if (javaType.includes('<')) {
-      const genericMatch = javaType.match(/^(\w+)<(.+)>$/);
-      if (genericMatch) {
-        const baseType = genericMatch[1];
-        const genericType = genericMatch[2];
-
-        if (baseType === 'List' || baseType === 'ArrayList' || baseType === 'LinkedList') {
-          return `${this.mapJavaTypeToTypeScript(genericType)}[]`;
-        } else if (baseType === 'Map' || baseType === 'HashMap') {
-          return 'Record<string, any>';
-        }
-      }
-    }
-
-    const typeMap = {
-      'Integer': 'number',
-      'int': 'number',
-      'Long': 'number',
-      'long': 'number',
-      'Double': 'number',
-      'double': 'number',
-      'Float': 'number',
-      'float': 'number',
-      'BigDecimal': 'number',
-      'String': 'string',
-      'Boolean': 'boolean',
-      'boolean': 'boolean',
-      'Object': 'any',
-      'void': 'void',
-      'File': 'string',
-      'JSONObject': 'Record<string, any>',
-      'Id': 'number',
-      'Date': 'Date',
-      'LocalDateTime': 'Date',
-      'LocalDate': 'Date',
-      'List': 'any[]',
-      'Map': 'Record<string, any>'
-    };
-
-    return typeMap[javaType] || javaType;
-  }
-
  /**
   * 分析需要的imports
   * 
@@ -342,23 +137,15 @@ class ServiceMethodConverter {
    };

    // NestJS异常
-    if (convertedBody.includes('BadRequestException')) {
-      imports.nestjs.add('BadRequestException');
-    }
-    if (convertedBody.includes('UnauthorizedException')) {
-      imports.nestjs.add('UnauthorizedException');
-    }
+    const nestjsImports = this.exception.analyzeImports(convertedBody);
+    nestjsImports.forEach(imp => imports.nestjs.add(imp));

    // Node.js模块
-    if (convertedBody.includes('fs.')) {
-      imports.nodeModules.add('fs');
-    }
-    if (convertedBody.includes('path.')) {
-      imports.nodeModules.add('path');
-    }
+    const nodeModules = this.file.analyzeNodeModules(convertedBody);
+    nodeModules.forEach(mod => imports.nodeModules.add(mod));

    // ConfigService
-    if (convertedBody.includes('this.config.')) {
+    if (this.config.needsConfigService(convertedBody)) {
      imports.boot.add('ConfigService');
    }

@@ -371,4 +158,3 @@ class ServiceMethodConverter {
 }

 module.exports = ServiceMethodConverter;
-
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/service-method-converter.js.bak
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/service-method-converter.js.bak
@@ -0,0 +1,374 @@
+const NamingUtils = require('../utils/naming-utils');
+
+/**
+ * Service方法体转换器
+ * 
+ * 职责：将Java Service方法体转换为TypeScript
+ * 
+ * 核心功能：
+ * 1. 提取Java方法体
+ * 2. Java语法 → TypeScript语法转换
+ * 3. Java工具类 → NestJS Boot层映射
+ */
+class ServiceMethodConverter {
+  constructor() {
+    this.namingUtils = new NamingUtils();
+  }
+
+  /**
+   * 转换Java方法体为TypeScript
+   * 
+   * @param {string} javaMethodBody - Java方法体代码
+   * @param {object} context - 上下文信息（Service类信息、依赖等）
+   * @returns {string} 转换后的TypeScript方法体
+   */
+  convertMethodBody(javaMethodBody, context = {}) {
+    if (!javaMethodBody || javaMethodBody.trim() === '') {
+      return '    // TODO: 实现业务逻辑\n    return null;';
+    }
+
+    let tsBody = javaMethodBody;
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【阶段1】基础语法转换
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsBody = this.convertBasicSyntax(tsBody);
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【阶段2】类型转换
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsBody = this.convertTypes(tsBody);
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【阶段3】工具类映射（Java → NestJS Boot层）
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsBody = this.convertUtilityClasses(tsBody);
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【阶段4】Mapper/Service调用转换
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsBody = this.convertDependencyCalls(tsBody, context);
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【阶段5】后处理清理
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsBody = this.postProcessCleanup(tsBody);
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【阶段6】添加缩进
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsBody = tsBody.split('\n').map(line => '    ' + line).join('\n');
+
+    return tsBody;
+  }
+
+  /**
+   * 【阶段5】后处理清理
+   * 修复转换后的常见语法错误
+   */
+  postProcessCleanup(tsBody) {
+    // 1. 修复 this.fs. 和 this.path. → fs. 和 path.
+    tsBody = tsBody.replace(/this\.fs\./g, 'fs.');
+    tsBody = tsBody.replace(/this\.path\./g, 'path.');
+    
+    // 2. 修复逻辑运算符优先级问题
+    // if (!this.config.get('xxx') === "yyy") → if (this.config.get('xxx') !== "yyy")
+    tsBody = tsBody.replace(/if\s*\(\s*!this\.config\.get\([^)]+\)\s*===\s*([^)]+)\)/g, (match) => {
+      // 提取内容
+      const configCall = match.match(/this\.config\.get\([^)]+\)/)[0];
+      const value = match.match(/===\s*([^)]+)\)/)[1].trim();
+      return `if (${configCall} !== ${value})`;
+    });
+    
+    // 3. 修复 !xxx === "yyy" → xxx !== "yyy" (通用)
+    tsBody = tsBody.replace(/!\s*([a-zA-Z_$.()[\]]+)\s*===\s*([^;)\n]+)/g, '$1 !== $2');
+    
+    // 4. 修复复杂表达式的 .exists()
+    // this.config.get('xxx' + yyy).exists() → fs.existsSync(this.config.get('xxx' + yyy))
+    tsBody = tsBody.replace(/(this\.config\.get\([^)]+\))\.exists\(\)/g, 'fs.existsSync($1)');
+    
+    return tsBody;
+  }
+
+  /**
+   * 【阶段1】基础语法转换
+   */
+  convertBasicSyntax(javaBody) {
+    let tsBody = javaBody;
+
+    // 1. 变量声明：Type varName = value; → const varName: Type = value;
+    tsBody = tsBody.replace(
+      /(\b(?:Integer|Long|String|Boolean|Double|Float|BigDecimal|Object|List<[^>]+>|Map<[^>]+>|[\w<>,\s]+))\s+(\w+)\s*=\s*([^;]+);/g,
+      (match, type, varName, value) => {
+        const tsType = this.mapJavaTypeToTypeScript(type);
+        return `const ${varName}: ${tsType} = ${value};`;
+      }
+    );
+
+    // 2. for-each循环：for (Type item : collection) → for (const item of collection)
+    tsBody = tsBody.replace(/for\s*\(\s*[\w<>,\s]+\s+(\w+)\s*:\s*([^)]+)\)/g, 'for (const $1 of $2)');
+
+    // 3. Java实例化：new ArrayList<>() → []
+    tsBody = tsBody.replace(/new\s+ArrayList<[^>]*>\(\)/g, '[]');
+    tsBody = tsBody.replace(/new\s+LinkedList<[^>]*>\(\)/g, '[]');
+    tsBody = tsBody.replace(/new\s+HashMap<[^>]*>\(\)/g, '{}');
+    tsBody = tsBody.replace(/new\s+HashSet<[^>]*>\(\)/g, 'new Set()');
+
+    // 4. Lambda表达式：item -> expression → item => expression
+    tsBody = tsBody.replace(/(\w+)\s*->\s*/g, '$1 => ');
+    tsBody = tsBody.replace(/\(([^)]+)\)\s*->\s*/g, '($1) => ');
+
+    return tsBody;
+  }
+
+  /**
+   * 【阶段2】类型转换
+   */
+  convertTypes(javaBody) {
+    let tsBody = javaBody;
+
+    // 1. 基础类型
+    tsBody = tsBody.replace(/\bInteger\b/g, 'number');
+    tsBody = tsBody.replace(/\bLong\b/g, 'number');
+    tsBody = tsBody.replace(/\bDouble\b/g, 'number');
+    tsBody = tsBody.replace(/\bFloat\b/g, 'number');
+
+    // 2. Java对象类型
+    tsBody = tsBody.replace(/\bJSONObject\b/g, 'Record<string, any>');
+    tsBody = tsBody.replace(/\bId\b/g, 'number');
+
+    // 3. Java类型转换语法：(Type) value → value
+    tsBody = tsBody.replace(/\(\s*(?:int|long|double|float|String|Integer|Long|Double|Float|number)\s*\)\s*/g, '');
+
+    return tsBody;
+  }
+
+  /**
+   * 【阶段3】工具类映射
+   */
+  convertUtilityClasses(javaBody) {
+    let tsBody = javaBody;
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【配置访问】WebAppEnvs / GlobalConfig → ConfigService
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    
+    // WebAppEnvs.get().property.exists() → fs.existsSync(this.config.get('property'))
+    // 必须在WebAppEnvs.get().property之前处理
+    tsBody = tsBody.replace(/WebAppEnvs\.get\(\)\.(\w+)\.exists\(\)/g, (match, prop) => {
+      return `fs.existsSync(this.config.get('${prop}'))`;
+    });
+    
+    // WebAppEnvs.get().property → this.config.get('property')
+    tsBody = tsBody.replace(/WebAppEnvs\.get\(\)\.(\w+)/g, (match, prop) => {
+      return `this.config.get('${prop}')`;
+    });
+    tsBody = tsBody.replace(/WebAppEnvs\.get\(\)/g, 'this.config');
+    
+    // GlobalConfig.property.exists() → fs.existsSync(this.config.get('property'))
+    // 必须在GlobalConfig.property之前处理
+    tsBody = tsBody.replace(/GlobalConfig\.(\w+)\.exists\(\)/g, (match, prop) => {
+      return `fs.existsSync(this.config.get('${prop}'))`;
+    });
+    
+    // GlobalConfig.property → this.config.get('property')
+    tsBody = tsBody.replace(/GlobalConfig\.(\w+)/g, (match, prop) => {
+      return `this.config.get('${prop}')`;
+    });
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【文件操作】Java File API → Node.js fs/path
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    
+    // FileUtils工具类
+    tsBody = tsBody.replace(/FileUtils\.cleanDirectory\(([^)]+)\)/g, 'fs.rmSync($1, { recursive: true, force: true })');
+    tsBody = tsBody.replace(/FileUtils\.copyFile\(([^,]+),\s*([^)]+)\)/g, 'fs.copyFileSync($1, $2)');
+    tsBody = tsBody.replace(/FileUtils\.deleteDirectory\(([^)]+)\)/g, 'fs.rmSync($1, { recursive: true, force: true })');
+    tsBody = tsBody.replace(/FileUtils\.readFileToString\(([^)]+)\)/g, 'fs.readFileSync($1, \'utf-8\')');
+    tsBody = tsBody.replace(/FileUtils\.writeStringToFile\(([^,]+),\s*([^)]+)\)/g, 'fs.writeFileSync($1, $2, \'utf-8\')');
+    
+    // File API
+    tsBody = tsBody.replace(/new\s+File\(([^)]+)\)/g, '$1');
+    tsBody = tsBody.replace(/(\w+)\.exists\(\)/g, 'fs.existsSync($1)');
+    tsBody = tsBody.replace(/(\w+)\.isDirectory\(\)/g, 'fs.lstatSync($1).isDirectory()');
+    tsBody = tsBody.replace(/(\w+)\.getName\(\)/g, 'path.basename($1)');
+    tsBody = tsBody.replace(/(\w+)\.listFiles\(\)/g, 'fs.readdirSync($1)');
+    tsBody = tsBody.replace(/(\w+)\.getPath\(\)/g, '$1');
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【字符串方法】
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    
+    // .equals() → ===
+    tsBody = tsBody.replace(/([^!;,\s]+)\.equals\(([^)]+)\)/g, '$1 === $2');
+    
+    // .equalsIgnoreCase() → .toLowerCase() === xxx.toLowerCase()
+    tsBody = tsBody.replace(/([a-zA-Z_$][\w$.()]+)\.equalsIgnoreCase\(([^)]+)\)/g, '$1.toLowerCase() === $2.toLowerCase()');
+    
+    // .contains() → .includes()
+    tsBody = tsBody.replace(/\.contains\(/g, '.includes(');
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【集合判空】
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    
+    // CollectionUtil.isEmpty(list) → !list || list.length === 0
+    tsBody = tsBody.replace(/(?:CollectionUtil|CollUtil)\.isEmpty\(([^)]+)\)/g, '(!$1 || $1.length === 0)');
+    tsBody = tsBody.replace(/(?:CollectionUtil|CollUtil)\.isNotEmpty\(([^)]+)\)/g, '($1 && $1.length > 0)');
+    
+    // list.isEmpty() → list.length === 0
+    tsBody = tsBody.replace(/([a-zA-Z_$][\w$]*)\.isEmpty\(\)/g, '$1.length === 0');
+    tsBody = tsBody.replace(/!([a-zA-Z_$][\w$]*)\.isEmpty\(\)/g, '$1.length > 0');
+    
+    // StringUtils.isEmpty(str) → !str || str.trim() === ''
+    tsBody = tsBody.replace(/StringUtils\.isEmpty\(([^)]+)\)/g, '(!$1 || $1.trim() === \'\')');
+    tsBody = tsBody.replace(/StringUtils\.isNotEmpty\(([^)]+)\)/g, '($1 && $1.trim() !== \'\')');
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【异常处理】
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    
+    // try-catch语句：catch (Exception e) → catch (error)
+    tsBody = tsBody.replace(/catch\s*\(\s*(?:Exception|RuntimeException|Throwable)\s+(\w+)\s*\)/g, 'catch ($1)');
+    
+    // 异常方法调用：e.getMessage() → e.message
+    tsBody = tsBody.replace(/(\w+)\.getMessage\(\)/g, '$1.message');
+    
+    // 异常抛出
+    tsBody = tsBody.replace(/throw\s+new\s+CommonException\(/g, 'throw new BadRequestException(');
+    tsBody = tsBody.replace(/throw\s+new\s+AuthException\(/g, 'throw new UnauthorizedException(');
+    tsBody = tsBody.replace(/throw\s+new\s+RuntimeException\(/g, 'throw new Error(');
+    tsBody = tsBody.replace(/throw\s+new\s+Exception\(/g, 'throw new Error(');
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【其他】
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    
+    // System.out.println → console.log
+    tsBody = tsBody.replace(/System\.out\.println\(/g, 'console.log(');
+    tsBody = tsBody.replace(/System\.err\.println\(/g, 'console.error(');
+
+    return tsBody;
+  }
+
+  /**
+   * 【阶段4】Mapper/Service调用转换
+   */
+  convertDependencyCalls(javaBody, context) {
+    let tsBody = javaBody;
+
+    // Mapper调用：xxxMapper.method() → this.xxxRepository.method()
+    if (context.dependencies) {
+      context.dependencies.forEach(dep => {
+        if (dep.includes('Mapper')) {
+          const mapperName = dep;
+          const repoName = this.namingUtils.toCamelCase(dep.replace('Mapper', 'Repository'));
+          tsBody = tsBody.replace(new RegExp(`${mapperName}\\.`, 'g'), `this.${repoName}.`);
+        }
+      });
+    }
+
+    // Service调用：xxxService.method() → this.xxxService.method()
+    if (context.dependencies) {
+      context.dependencies.forEach(dep => {
+        if (dep.includes('Service') && !dep.includes('ServiceImpl')) {
+          const serviceName = this.namingUtils.toCamelCase(dep);
+          tsBody = tsBody.replace(new RegExp(`${dep}\\.`, 'g'), `this.${serviceName}.`);
+        }
+      });
+    }
+
+    return tsBody;
+  }
+
+  /**
+   * 映射Java类型到TypeScript
+   */
+  mapJavaTypeToTypeScript(javaType) {
+    // 处理泛型
+    if (javaType.includes('<')) {
+      const genericMatch = javaType.match(/^(\w+)<(.+)>$/);
+      if (genericMatch) {
+        const baseType = genericMatch[1];
+        const genericType = genericMatch[2];
+
+        if (baseType === 'List' || baseType === 'ArrayList' || baseType === 'LinkedList') {
+          return `${this.mapJavaTypeToTypeScript(genericType)}[]`;
+        } else if (baseType === 'Map' || baseType === 'HashMap') {
+          return 'Record<string, any>';
+        }
+      }
+    }
+
+    const typeMap = {
+      'Integer': 'number',
+      'int': 'number',
+      'Long': 'number',
+      'long': 'number',
+      'Double': 'number',
+      'double': 'number',
+      'Float': 'number',
+      'float': 'number',
+      'BigDecimal': 'number',
+      'String': 'string',
+      'Boolean': 'boolean',
+      'boolean': 'boolean',
+      'Object': 'any',
+      'void': 'void',
+      'File': 'string',
+      'JSONObject': 'Record<string, any>',
+      'Id': 'number',
+      'Date': 'Date',
+      'LocalDateTime': 'Date',
+      'LocalDate': 'Date',
+      'List': 'any[]',
+      'Map': 'Record<string, any>'
+    };
+
+    return typeMap[javaType] || javaType;
+  }
+
+  /**
+   * 分析需要的imports
+   * 
+   * @param {string} convertedBody - 转换后的TypeScript代码
+   * @returns {object} 需要导入的模块
+   */
+  analyzeImports(convertedBody) {
+    const imports = {
+      nestjs: new Set(),
+      boot: new Set(),
+      nodeModules: new Set()
+    };
+
+    // NestJS异常
+    if (convertedBody.includes('BadRequestException')) {
+      imports.nestjs.add('BadRequestException');
+    }
+    if (convertedBody.includes('UnauthorizedException')) {
+      imports.nestjs.add('UnauthorizedException');
+    }
+
+    // Node.js模块
+    if (convertedBody.includes('fs.')) {
+      imports.nodeModules.add('fs');
+    }
+    if (convertedBody.includes('path.')) {
+      imports.nodeModules.add('path');
+    }
+
+    // ConfigService
+    if (convertedBody.includes('this.config.')) {
+      imports.boot.add('ConfigService');
+    }
+
+    return {
+      nestjs: Array.from(imports.nestjs),
+      boot: Array.from(imports.boot),
+      nodeModules: Array.from(imports.nodeModules)
+    };
+  }
+}
+
+module.exports = ServiceMethodConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/syntax/basic-syntax.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/syntax/basic-syntax.converter.js
@@ -0,0 +1,91 @@
+/**
+ * 基础语法转换器
+ * 
+ * 负责Java基础语法到TypeScript的转换：
+ * - 变量声明
+ * - 循环语句
+ * - Lambda表达式
+ * - 集合实例化
+ */
+class BasicSyntaxConverter {
+  /**
+   * 转换基础语法
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. 变量声明：Type varName = value; → const varName: Type = value;
+    tsCode = tsCode.replace(
+      /(\b(?:Integer|Long|String|Boolean|Double|Float|BigDecimal|Object|List<[^>]+>|Map<[^>]+>|[\w<>,\s]+))\s+(\w+)\s*=\s*([^;]+);/g,
+      (match, type, varName, value) => {
+        const tsType = this.mapJavaTypeToTypeScript(type);
+        return `const ${varName}: ${tsType} = ${value};`;
+      }
+    );
+
+    // 2. for-each循环：for (Type item : collection) → for (const item of collection)
+    tsCode = tsCode.replace(/for\s*\(\s*[\w<>,\s]+\s+(\w+)\s*:\s*([^)]+)\)/g, 'for (const $1 of $2)');
+
+    // 3. Lambda表达式：item -> expression → item => expression
+    tsCode = tsCode.replace(/(\w+)\s*->\s*/g, '$1 => ');
+    tsCode = tsCode.replace(/\(([^)]+)\)\s*->\s*/g, '($1) => ');
+
+    // 4. Java实例化：new ArrayList<>() → []
+    tsCode = tsCode.replace(/new\s+ArrayList<[^>]*>\(\)/g, '[]');
+    tsCode = tsCode.replace(/new\s+LinkedList<[^>]*>\(\)/g, '[]');
+    tsCode = tsCode.replace(/new\s+HashMap<[^>]*>\(\)/g, '{}');
+    tsCode = tsCode.replace(/new\s+HashSet<[^>]*>\(\)/g, 'new Set()');
+
+    return tsCode;
+  }
+
+  /**
+   * 映射Java类型到TypeScript
+   */
+  mapJavaTypeToTypeScript(javaType) {
+    // 处理泛型
+    if (javaType.includes('<')) {
+      const genericMatch = javaType.match(/^(\w+)<(.+)>$/);
+      if (genericMatch) {
+        const baseType = genericMatch[1];
+        const genericType = genericMatch[2];
+
+        if (baseType === 'List' || baseType === 'ArrayList' || baseType === 'LinkedList') {
+          return `${this.mapJavaTypeToTypeScript(genericType)}[]`;
+        } else if (baseType === 'Map' || baseType === 'HashMap') {
+          return 'Record<string, any>';
+        }
+      }
+    }
+
+    const typeMap = {
+      'Integer': 'number',
+      'int': 'number',
+      'Long': 'number',
+      'long': 'number',
+      'Double': 'number',
+      'double': 'number',
+      'Float': 'number',
+      'float': 'number',
+      'BigDecimal': 'number',
+      'String': 'string',
+      'Boolean': 'boolean',
+      'boolean': 'boolean',
+      'Object': 'any',
+      'void': 'void',
+      'File': 'string',
+      'JSONObject': 'Record<string, any>',
+      'Id': 'number',
+      'Date': 'Date',
+      'LocalDateTime': 'Date',
+      'LocalDate': 'Date',
+      'List': 'any[]',
+      'Map': 'Record<string, any>'
+    };
+
+    return typeMap[javaType] || javaType;
+  }
+}
+
+module.exports = BasicSyntaxConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/syntax/exception.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/syntax/exception.converter.js
@@ -0,0 +1,49 @@
+/**
+ * 异常处理转换器
+ * 
+ * 负责Java异常到TypeScript/NestJS异常的转换
+ */
+class ExceptionConverter {
+  /**
+   * 转换异常处理
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. try-catch语句：catch (Exception e) → catch (e)
+    tsCode = tsCode.replace(/catch\s*\(\s*(?:Exception|RuntimeException|Throwable|IOException|SQLException)\s+(\w+)\s*\)/g, 'catch ($1)');
+
+    // 2. 异常方法调用：e.getMessage() → e.message
+    tsCode = tsCode.replace(/(\w+)\.getMessage\(\)/g, '$1.message');
+    tsCode = tsCode.replace(/(\w+)\.printStackTrace\(\)/g, 'console.error($1)');
+
+    // 3. 异常抛出
+    tsCode = tsCode.replace(/throw\s+new\s+CommonException\(/g, 'throw new BadRequestException(');
+    tsCode = tsCode.replace(/throw\s+new\s+AuthException\(/g, 'throw new UnauthorizedException(');
+    tsCode = tsCode.replace(/throw\s+new\s+RuntimeException\(/g, 'throw new Error(');
+    tsCode = tsCode.replace(/throw\s+new\s+Exception\(/g, 'throw new Error(');
+    tsCode = tsCode.replace(/throw\s+new\s+IOException\(/g, 'throw new Error(');
+    tsCode = tsCode.replace(/throw\s+new\s+SQLException\(/g, 'throw new Error(');
+
+    return tsCode;
+  }
+
+  /**
+   * 分析需要的异常imports
+   */
+  analyzeImports(tsCode) {
+    const imports = new Set();
+
+    if (tsCode.includes('BadRequestException')) {
+      imports.add('BadRequestException');
+    }
+    if (tsCode.includes('UnauthorizedException')) {
+      imports.add('UnauthorizedException');
+    }
+
+    return Array.from(imports);
+  }
+}
+
+module.exports = ExceptionConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/syntax/type.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/syntax/type.converter.js
@@ -0,0 +1,31 @@
+/**
+ * 类型转换器
+ * 
+ * 负责Java类型到TypeScript类型的转换
+ */
+class TypeConverter {
+  /**
+   * 转换类型
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. 基础类型
+    tsCode = tsCode.replace(/\bInteger\b/g, 'number');
+    tsCode = tsCode.replace(/\bLong\b/g, 'number');
+    tsCode = tsCode.replace(/\bDouble\b/g, 'number');
+    tsCode = tsCode.replace(/\bFloat\b/g, 'number');
+
+    // 2. Java对象类型
+    tsCode = tsCode.replace(/\bJSONObject\b/g, 'Record<string, any>');
+    tsCode = tsCode.replace(/\bId\b/g, 'number');
+
+    // 3. Java类型转换语法：(Type) value → value
+    tsCode = tsCode.replace(/\(\s*(?:int|long|double|float|String|Integer|Long|Double|Float|number)\s*\)\s*/g, '');
+
+    return tsCode;
+  }
+}
+
+module.exports = TypeConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/collection.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/collection.converter.js
@@ -0,0 +1,27 @@
+/**
+ * 集合判空转换器
+ * 
+ * Java集合判空方法 → TypeScript数组判空
+ */
+class CollectionConverter {
+  /**
+   * 转换集合判空
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. CollectionUtil.isEmpty/isNotEmpty
+    tsCode = tsCode.replace(/(?:CollectionUtil|CollUtil)\.isEmpty\(([^)]+)\)/g, '(!$1 || $1.length === 0)');
+    tsCode = tsCode.replace(/(?:CollectionUtil|CollUtil)\.isNotEmpty\(([^)]+)\)/g, '($1 && $1.length > 0)');
+
+    // 2. list.isEmpty() → list.length === 0
+    // 支持链式调用：obj.getConfig().isEmpty()
+    tsCode = tsCode.replace(/([a-zA-Z_$][\w$.]*)\.isEmpty\(\)/g, '$1.length === 0');
+    tsCode = tsCode.replace(/!([a-zA-Z_$][\w$.]*)\.isEmpty\(\)/g, '$1.length > 0');
+
+    return tsCode;
+  }
+}
+
+module.exports = CollectionConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/config.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/config.converter.js
@@ -0,0 +1,53 @@
+/**
+ * 配置访问转换器
+ * 
+ * WebAppEnvs / GlobalConfig → ConfigService
+ */
+class ConfigConverter {
+  /**
+   * 转换配置访问
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. WebAppEnvs.get().property.exists() → fs.existsSync(this.config.get('property'))
+    tsCode = tsCode.replace(/WebAppEnvs\.get\(\)\.(\w+)\.exists\(\)/g, (match, prop) => {
+      return `fs.existsSync(this.config.get('${prop}'))`;
+    });
+
+    // 2. WebAppEnvs.get().property → this.config.get('property')
+    tsCode = tsCode.replace(/WebAppEnvs\.get\(\)\.(\w+)/g, (match, prop) => {
+      return `this.config.get('${prop}')`;
+    });
+
+    // 3. WebAppEnvs.get() → this.config
+    tsCode = tsCode.replace(/WebAppEnvs\.get\(\)/g, 'this.config');
+
+    // 4. WebAppEnvs.staticProperty → this.config.get('staticProperty')
+    tsCode = tsCode.replace(/WebAppEnvs\.(\w+)/g, (match, prop) => {
+      return `this.config.get('${prop}')`;
+    });
+
+    // 5. GlobalConfig.property.exists() → fs.existsSync(this.config.get('property'))
+    tsCode = tsCode.replace(/GlobalConfig\.(\w+)\.exists\(\)/g, (match, prop) => {
+      return `fs.existsSync(this.config.get('${prop}'))`;
+    });
+
+    // 6. GlobalConfig.property → this.config.get('property')
+    tsCode = tsCode.replace(/GlobalConfig\.(\w+)/g, (match, prop) => {
+      return `this.config.get('${prop}')`;
+    });
+
+    return tsCode;
+  }
+
+  /**
+   * 分析是否需要ConfigService
+   */
+  needsConfigService(tsCode) {
+    return tsCode.includes('this.config.');
+  }
+}
+
+module.exports = ConfigConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/file.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/file.converter.js
@@ -0,0 +1,63 @@
+/**
+ * 文件操作转换器
+ * 
+ * Java File API / FileUtils → Node.js fs/path
+ */
+class FileConverter {
+  /**
+   * 转换文件操作
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【FileUtils工具类】
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsCode = tsCode.replace(/FileUtils\.cleanDirectory\(([^)]+)\)/g, 'fs.rmSync($1, { recursive: true, force: true })');
+    tsCode = tsCode.replace(/FileUtils\.copyFile\(([^,]+),\s*([^)]+)\)/g, 'fs.copyFileSync($1, $2)');
+    tsCode = tsCode.replace(/FileUtils\.deleteDirectory\(([^)]+)\)/g, 'fs.rmSync($1, { recursive: true, force: true })');
+    tsCode = tsCode.replace(/FileUtils\.readFileToString\(([^)]+)\)/g, 'fs.readFileSync($1, \'utf-8\')');
+    tsCode = tsCode.replace(/FileUtils\.writeStringToFile\(([^,]+),\s*([^)]+)\)/g, 'fs.writeFileSync($1, $2, \'utf-8\')');
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【File API】
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    tsCode = tsCode.replace(/new\s+File\(([^)]+)\)/g, '$1');
+    tsCode = tsCode.replace(/(\w+)\.exists\(\)/g, 'fs.existsSync($1)');
+    tsCode = tsCode.replace(/(\w+)\.isDirectory\(\)/g, 'fs.lstatSync($1).isDirectory()');
+    tsCode = tsCode.replace(/(\w+)\.getName\(\)/g, 'path.basename($1)');
+    tsCode = tsCode.replace(/(\w+)\.listFiles\(\)/g, 'fs.readdirSync($1)');
+    tsCode = tsCode.replace(/(\w+)\.getPath\(\)/g, '$1');
+    tsCode = tsCode.replace(/(\w+)\.getAbsolutePath\(\)/g, 'path.resolve($1)');
+
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // 【Java NIO API】
+    // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+    // Files.list(Paths.get(x)) → fs.readdirSync(x).map(...)
+    tsCode = tsCode.replace(/Files\.list\(Paths\.get\(([^)]+)\)\)/g, 'fs.readdirSync($1)');
+    
+    // Paths.get(x) → x
+    tsCode = tsCode.replace(/Paths\.get\(([^)]+)\)/g, '$1');
+
+    return tsCode;
+  }
+
+  /**
+   * 分析是否需要Node.js模块
+   */
+  analyzeNodeModules(tsCode) {
+    const modules = new Set();
+
+    if (tsCode.includes('fs.')) {
+      modules.add('fs');
+    }
+    if (tsCode.includes('path.')) {
+      modules.add('path');
+    }
+
+    return Array.from(modules);
+  }
+}
+
+module.exports = FileConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/json.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/json.converter.js
@@ -0,0 +1,27 @@
+/**
+ * JSON工具类转换器
+ * 
+ * JSONUtil / JSON相关 → TypeScript JSON / JsonUtils
+ */
+class JsonConverter {
+  /**
+   * 转换JSON工具类
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // JSONUtil.parseObj() → JSON.parse()
+    tsCode = tsCode.replace(/JSONUtil\.parseObj\(([^)]+)\)/g, 'JSON.parse($1)');
+    
+    // JSONUtil.toBean() → 需要手动处理，暂时保留TODO
+    tsCode = tsCode.replace(/JSONUtil\.toBean\(([^,]+),\s*([^)]+)\.class\)/g, '/* TODO: JSONUtil.toBean($1, $2) */Object.assign(new $2(), JSON.parse(JSON.stringify($1)))');
+
+    // JSONObject → Record<string, any>
+    tsCode = tsCode.replace(/JSONObject/g, 'Record<string, any>');
+
+    return tsCode;
+  }
+}
+
+module.exports = JsonConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/object.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/object.converter.js
@@ -0,0 +1,38 @@
+/**
+ * 对象工具类转换器
+ * 
+ * ObjectUtil / BeanUtils等 → TypeScript对象操作
+ */
+class ObjectConverter {
+  /**
+   * 转换对象工具类
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. ObjectUtil.isNotEmpty() → value && ...
+    tsCode = tsCode.replace(/ObjectUtil\.isNotEmpty\(([^)]+)\)/g, '($1 && Object.keys($1).length > 0)');
+    tsCode = tsCode.replace(/ObjectUtil\.isEmpty\(([^)]+)\)/g, '(!$1 || Object.keys($1).length === 0)');
+
+    // 2. ObjectUtil.defaultIfNull(a, b) → a ?? b
+    tsCode = tsCode.replace(/ObjectUtil\.defaultIfNull\(([^,]+),\s*([^)]+)\)/g, '$1 ?? $2');
+
+    // 3. BeanUtils.copyProperties(src, dest) → Object.assign(dest, src)
+    tsCode = tsCode.replace(/BeanUtils\.copyProperties\(([^,]+),\s*([^)]+)\)/g, 'Object.assign($2, $1)');
+
+    // 4. System.out.println() → console.log()
+    tsCode = tsCode.replace(/System\.out\.println\(/g, 'console.log(');
+    tsCode = tsCode.replace(/System\.err\.println\(/g, 'console.error(');
+
+    // 5. System.currentTimeMillis() → Date.now()
+    tsCode = tsCode.replace(/System\.currentTimeMillis\(\)/g, 'Date.now()');
+
+    // 6. Assert.notNull() → if (!x) throw new Error()
+    tsCode = tsCode.replace(/Assert\.notNull\(([^,]+),\s*([^)]+)\)/g, 'if (!$1) throw new BadRequestException($2)');
+
+    return tsCode;
+  }
+}
+
+module.exports = ObjectConverter;
+
--- a/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/string.converter.js
+++ b/wwjcloud-nest-v1/tools/java-to-nestjs-migration/converters/utils/string.converter.js
@@ -0,0 +1,35 @@
+/**
+ * 字符串方法转换器
+ * 
+ * Java String方法 → TypeScript String方法
+ */
+class StringConverter {
+  /**
+   * 转换字符串方法
+   */
+  convert(javaCode) {
+    let tsCode = javaCode;
+
+    // 1. .equals() → ===
+    // 支持方法调用结果：path.basename(child).equals("sql")
+    tsCode = tsCode.replace(/([a-zA-Z_$][\w$.()]+)\.equals\(([^)]+)\)/g, '$1 === $2');
+
+    // 2. .equalsIgnoreCase() → .toLowerCase() === xxx.toLowerCase()
+    tsCode = tsCode.replace(/([a-zA-Z_$][\w$.()]+)\.equalsIgnoreCase\(([^)]+)\)/g, '$1.toLowerCase() === $2.toLowerCase()');
+
+    // 3. .contains() → .includes()
+    tsCode = tsCode.replace(/\.contains\(/g, '.includes(');
+
+    // 4. StringUtils.isEmpty/isNotEmpty
+    tsCode = tsCode.replace(/StringUtils\.isEmpty\(([^)]+)\)/g, '(!$1 || $1.trim() === \'\')');
+    tsCode = tsCode.replace(/StringUtils\.isNotEmpty\(([^)]+)\)/g, '($1 && $1.trim() !== \'\')');
+
+    // 5. String.valueOf() → String()
+    tsCode = tsCode.replace(/String\.valueOf\(([^)]+)\)/g, 'String($1)');
+
+    return tsCode;
+  }
+}
+
+module.exports = StringConverter;
+
--- a/wwjcloud-nest-v1/wwjcloud/libs/wwjcloud-boot/src/index.ts
+++ b/wwjcloud-nest-v1/wwjcloud/libs/wwjcloud-boot/src/index.ts
@@ -39,3 +39,4 @@ export * from "./infra/queue/job-scheduler.service";
 export * from "./infra/events/event-listener.service";
 export * from "./infra/events/event-bus";
 export * from "./infra/common/result";
+export { ConfigService } from "@nestjs/config";