fastjson 快速上手

 1     @Test
 2     public void test001(){
 3         String jsonStr = "{‘name‘:‘张三‘,‘age‘:22,‘sex‘:‘男‘}";
 4         //字符串转json对象
 5         JSONObject jsonObject = JSONObject.parseObject(jsonStr);
 6         String name = jsonObject.getString("name");
 7         Integer age = jsonObject.getInteger("age");
 8         String sex = jsonObject.getString("sex");
 9         System.out.println(name + age + sex );
10     }

    @Test
    public void test(){
        String json="{‘name‘:‘张三‘,‘age‘:55,‘sex‘:‘男‘,‘format‘:[{‘province‘:‘上海市‘,‘city‘:‘上海市‘,‘district‘:‘黄浦区‘}]}";
        JSONObject jsonObject = JSONObject.parseObject(json);
        JSONArray format1 = jsonObject.getJSONArray("format");
        System.out.println(format1 );
        JSONObject jsonObject2 = JSONObject.parseObject(format1.getString(0));
        String province = jsonObject2.getString("province");
        String city = jsonObject2.getString("city");
        String district = jsonObject2.getString("district");
        System.out.println(province + city + district );
    }

    @Test
    public void test01( ) {
        String jsonStr2 = "[{‘name‘:‘张三‘,‘age‘:23},{‘name‘:‘李四‘,‘age‘:500,‘address‘:‘杭州市‘}]";
        List< Users > users = JSONArray.parseArray(jsonStr2, Users.class);
        System.out.println(users);

        //还原成json字符串
        String jsonStr = JSONArray.toJSONString(users);
        System.out.println(jsonStr);
    }