gson转换

case 1

    customerListJson:"[{"customerName":"王","customerShortName":"","businessUserName":"郭经理","customerPersonName":"王的2","phone":"534595"},
        {"customerName":"吴","customerShortName":"","businessUserName":"郭经理","customerPersonName":"吴的1","phone":"34962734"},
        {"customerName":"赵","customerShortName":"","businessUserName":"张销售","customerPersonName":null,"phone":null}]"


    @RequestMapping(value = "/", method = RequestMethod.POST)
    @ResponseBody 
    public void customerList(@RequestBody JSONObject info){
        List<Customer> custcomerList =
        JSONObject.parseArray(info.getJSONArray("customerListJson").toJSONString(), Customer.class);
  }

case 2

list接

      @RequestMapping(value = "/", method = RequestMethod.POST)
       @ResponseBody 
       public void customerList(@RequestBody Map<String, Object> map)
     {
           List<OutsideMessage> messageList = 
           JSONArray.parseArray(JSON.toJSONString(map.get("message")), OutsideMessage.class);
     }
 

//数据准备
List<Student> list=new ArrayList<Student>();
list.add(new Student(1,1000d,"旅游",new Date()));
list.add(new Student(2,1500d,"玩电脑游戏",new Date()));
list.add(new Student(3,3000d,"看电影",new Date()));
Student student=new Student(1,1000d,"旅游",new Date());

//实例化Gson对象
Gson gson=new Gson();

//将对象转为JSON字符串
String json = gson.toJson(student);  //{"index":1,"size":1000.0,"string":"旅游","date":"Nov 28, 2019 11:46:51 AM"}

   
//将JSON字符串转为对象
Student stu = gson.fromJson(json, Student.class);

//将List ---->JSON字符串
String json2 = gson.toJson(list); 
     //:[{"index":1,"size":1000.0,"string":"旅游","date":"Nov 28, 2019 11:46:51 AM"},
     //  {"index":2,"size":1500.0,"string":"玩电脑游戏","date":"Nov 28, 2019 11:46:51 AM"},
     //  {"index":3,"size":3000.0,"string":"看电影","date":"Nov 28, 2019 11:46:51 AM"}]

//将JSON字符串---->List
List<Student> stuList = gson.fromJson(json2, new TypeToken<List<Student>>(){}.getType());

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