package iotest;import com.google.gson.Gson;import com.google.gson.JsonArray;import com.google.gson.JsonElement;import com.google.gson.JsonObject;import com.google.gson.JsonParser;import java.util.ArrayList;import java.util.Iterator;import java.util.List;/** * @author yan * @version V1.0 * @desc  */public class Iotest {        public static void main(String[] args) {        Result result = new Result();        result.setNo(1);        result.setMsg("OK");        List
     
       list = new ArrayList
      
       ();        list.add("123");        list.add("234");        list.add("345");        result.setObj(list);                Gson gson = new Gson();        String json = gson.toJson(result);                System.out.println(json);                /**         * {"no":1,"msg":"OK","obj":["123","234","345"]}         */                JsonParser jp = new JsonParser();        JsonObject jsonObj = jp.parse(json).getAsJsonObject();                int no = jsonObj.get("no").getAsInt();        System.out.println("no:"+no);                String msg = jsonObj.get("msg").getAsString();        System.out.println("msg:"+msg);                JsonArray jsonArray = jsonObj.get("obj").getAsJsonArray();        Iterator
       
         iter = jsonArray.iterator();        List
        
          objs = new ArrayList
         
          ();        while(iter.hasNext()){            objs.add(iter.next().getAsString());        }                for(String s:objs){            System.out.println("==s:"+s);        }            }            static class Result{        private Integer no;        private String msg;        private Object obj;        public Integer getNo() {            return no;        }        public void setNo(Integer no) {            this.no = no;        }        public String getMsg() {            return msg;        }        public void setMsg(String msg) {            this.msg = msg;        }        public Object getObj() {            return obj;        }        public void setObj(Object obj) {            this.obj = obj;        }                    }}