package com.hanfan.test;// HANFAN自動(dòng)讀取PC名字，也可以寫死這個(gè)名字

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;

import java.util.HashMap;
import java.util.Map;

/**
 * @Author HANFAN
 * @Date 2022/4/21 16:01
 * @Version 1.0
 */

public class mapAndJsonCast {

    public static void main(String[] args) {

        /* map轉(zhuǎn)化JSON字符串常用 */
        Map testMap = new HashMap<>();
        testMap.put("str1","fu");
        testMap.put("str2","ck");
        String str = JSON.toJSONString(testMap);
        System.out.println("testMap的值：" + testMap);

//      打印的結(jié)果是：       testMap的值：{str1=fu, str2=ck}
    }
}

        /* JSON字符串轉(zhuǎn)JSON對(duì)象常用*/
        String jsonStr = "{\"str3\":\"zhangsan\",\"str4\":\"lisi\",\"str5\":\"wangwu\",\"str6\":\"maliu\"}";
        JSONObject jsonObject = JSONObject.parseObject(jsonStr);
        System.out.println("jsonObject：" + jsonObject);
//      打印的結(jié)果是：       jsonObject：{"str5":"wangwu","str6":"maliu","str3":"zhangsan","str4":"lisi"}

        /*Map轉(zhuǎn)JSON對(duì)象常用 */
        JSONObject JSONObj = JSONObject.parseObject(JSON.toJSONString(testMap));
        System.out.println("JSONObj：" + JSONObj);
//      打印的結(jié)果是：        JSONObj：{"str1":"fu","str2":"ck"}

        /* JSON字符串轉(zhuǎn)Map常用*/
        Map<String,Object> strMap =  JSONObject.parseObject(jsonStr);
        System.out.println("strMap：" + strMap);
//      打印的結(jié)果是：        strMap：{"str5":"wangwu","str6":"maliu","str3":"zhangsan","str4":"lisi"}

        /*JSON對(duì)象轉(zhuǎn)map常用*/
        Map<String,Object> jsonToMap =  JSONObject.parseObject(jsonObject.toJSONString());
        System.out.println("jsonToMap："+jsonToMap);
//      打印的結(jié)果是：        jsonToMap：{"str5":"wangwu","str6":"maliu","str3":"zhangsan","str4":"lisi"}

        //JSON對(duì)象轉(zhuǎn)JSON字符串
        String jsonToStr = jsonObject.toJSONString();
        System.out.println("jsonToStr=>"+jsonToStr);
//      打印的結(jié)果是：       jsonToStr=>{"str5":"wangwu","str6":"maliu","str3":"zhangsan","str4":"lisi"}

        /* map轉(zhuǎn)化JSON字符串常用 */
        Map<String,Object> testMap = new HashMap<>();
        testMap.put("str1","fu");
        testMap.put("str2","ck");
        String str = JSON.toJSONString(testMap);
        System.out.println("testMap的值：" + testMap);

//      打印的結(jié)果是：       testMap的值：{str1=fu, str2=ck}
        /* JSON字符串轉(zhuǎn)JSON對(duì)象常用*/
        String jsonStr = "{\"str3\":\"zhangsan\",\"str4\":\"lisi\",\"str5\":\"wangwu\",\"str6\":\"maliu\"}";
        JSONObject jsonObject = JSONObject.parseObject(jsonStr);
        System.out.println("jsonObject：" + jsonObject);
//      打印的結(jié)果是：       jsonObject：{"str5":"wangwu","str6":"maliu","str3":"zhangsan","str4":"lisi"}