一、Json对象+@RequestBody接收
var val = {id: 1, name: "小明"};
$.ajax({
url: "/getJson",
dataType: "JSON",
type: "post",
contentType: 'application/json;charset=UTF-8',
data: JSON.stringify(val),
success: function (msg) {
console.log(msg)
}
})
后端获取参数：Map<String,Object>
@PostMapping("/getJson")
@ResponseBody
public Map<String,Object> getJsonVal(@RequestBody Map<String,Object> user) {
System.out.println("user = " + user.get("id"));
System.out.println("user = " + user.get("name"));
return user;
}
后端获取参数：对象
@PostMapping("/getJson")
@ResponseBody
public User getJsonVal(@RequestBody User user) {
return user;
}
二、传JSON对象#
var val = {"id": 1, "name": "小明"};
$.ajax({
url: "/getJson",
dataType: "JSON",
type: "post",
// contentType: 'application/json;charset=UTF-8', //不能加
data: val,
success: function (msg) {
console.log(msg)
}
})
后端获取参数
@PostMapping("/getJson")
@ResponseBody
public User getJsonVal(@RequestParam("id") String id,@RequestParam("name") String name) {
User user = new User();
user.setId(Integer.parseInt(id));
user.setName(name);
return user;
}
三、json集合+@RequestBody接收#
var val = [{"id": 1, "name": "小明"},{"id": 2, "name": "小红"}];
$.ajax({
url: "/getJson",
dataType: "JSON",
type: "post",
contentType: 'application/json;charset=UTF-8', //不能加
data: JSON.stringify(val),
success: function (msg) {
console.log(msg)
}
})
后端获取参数
@PostMapping("/getJson")
@ResponseBody
public List<User> getJsonVal(@RequestBody List<User> user) throws IOException {
for(User user2 : user){
System.out.println("user2 = " + user2);
}
return user;
}