需要的jar:gson-2.1.jar gson-2.1-javadoc.jar gson-2.1-sources.jar


package jiexixml;


import com.google.gson.JsonArray;
 import com.google.gson.JsonIOException;
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParser;
 import com.google.gson.JsonSyntaxException;
  
 public class ReadJSON1 {
     public static void main(String args[]){
         try {
              
             JsonParser parser=new JsonParser();  //创建JSON解析器
         //String json = "{'name': '亲亲宝宝','array':[{'a':'111','b':'222','c':'333'},{'a':'','b':'','c':''},{'a':'','b':'','c':''}],'address':'亲亲宝宝','CHANGE':['DETAIL':[{'XM':'陈大发'},{'XM':'陈小发'}],'DETAIL':[{'XM':'李小明'}]]}";
         String json = "{'CHANGE':[{'DETAIL':[{'XM':'李小明'},{'XM':'李中明'}]},{'DETAIL':[{'XM':'李大明'}]}]}";
             JsonObject object=(JsonObject) parser.parse(json);
             //JsonObject object=(JsonObject) parser.parse(new FileReader("test.json"));  //创建JsonObject对象
 /*            System.out.println("cat="+object.get("name").getAsString()); //将json数据转为为String型的数据
             //System.out.println("pop="+object.get("pop").getAsBoolean()); //将json数据转为为boolean型的数据
              
             JsonArray array=object.get("array").getAsJsonArray();    //得到为json的数组
             for(int i=0;i<array.size();i++){
                 System.out.println("---------------");
                 JsonObject subObject=array.get(i).getAsJsonObject();
                 System.out.println("id="+subObject.get("a").getAsString());
                 System.out.println("name="+subObject.get("b").getAsString());
                 System.out.println("ide="+subObject.get("c").getAsString());
             }*/
             //int shu =Integer.parseInt(object.get("shu").getAsString());
             JsonArray array1=object.get("CHANGE").getAsJsonArray();    //得到为json的数组
             for(int i=0;i<array1.size();i++){
                 System.out.println("---------------");
                 JsonObject subObject=array1.get(i).getAsJsonObject();
                 System.out.println(subObject.toString());
                 JsonArray array2 = subObject.get("DETAIL").getAsJsonArray();
                 for(int t=0;t<array2.size();t++){
                     JsonObject subObject1=array2.get(t).getAsJsonObject();
                     System.out.println("id="+subObject1.get("XM").getAsString());
                 }
             }


              
         } catch (JsonIOException e) {
             e.printStackTrace();
         } catch (JsonSyntaxException e) {
             e.printStackTrace();
         }
         
         
     }
 }