复杂json的转换

{"menus":[{"key":"测试1","type":"Channel","owner":"","title":"标题1","fav":"false","lineSelect":"false","chartSelect":"false"},{"key":"测试2","type":"Channel","owner":"","title":"标题2","fav":"false","lineSelect":"false","chartSelect":"false"},{"key":"测试3","type":"Channel","owner":"","index":"1","title":"标题3","fav":"false","lineSelect":"false","chartSelect":"false"}]}

以上是一个复杂json串，其中menus作为key的值又是一个json数组，我们首先考虑将menus和后面的值分开，采用Map接收；后面的json数组采用List接收；再往里边的json串用Map或实体类接收。
综上分析，代码实现为：

import com.google.gson.Gson; import com.google.gson.reflect.TypeToken; import java.util.List; import java.util.Map;  public class JsonTest {     public static void main(String[] args) {         String str = "{\"menus\":[{\"key\":\"测试1\",\"type\":\"Channel\",\"owner\":\"\",\"title\":\"标题1\",\"fav\":\"false\",\"lineSelect\":\"false\",\"chartSelect\":\"false\"},{\"key\":\"测试2\",\"type\":\"Channel\",\"owner\":\"\",\"title\":\"标题2\",\"fav\":\"false\",\"lineSelect\":\"false\",\"chartSelect\":\"false\"},{\"key\":\"测试3\",\"type\":\"Channel\",\"owner\":\"\",\"index\":\"1\",\"title\":\"标题3\",\"fav\":\"false\",\"lineSelect\":\"false\",\"chartSelect\":\"false\"}]}";         Gson gson = new Gson();         Map<String, List<Map<String, String>>> map = gson.fromJson(str, new TypeToken<Map<String, List<Map<String, String>>>>(){}.getType());         Map<String, List<JsonTestEntity>> map2 = gson.fromJson(str, new TypeToken<Map<String, List<JsonTestEntity>>>(){}.getType());         System.out.println();     } }

其中，实体类的定义为：

public class JsonTestEntity {     private String key;     private String type;     private String owner;     private String title;     private String fav;     private String lineSelect;     private String chartSelect; } 

解析完成，如有其它问题欢迎留言沟通。

文章来源: 复杂json的转换