SpringMVC @RequestBody接收Json对象字符串

时间:2022-03-02 03:46:04

  其实 @RequestBody接收的是一个Json对象的字符串,而不是一个Json对象。然而在ajax请求往往传的都是Json对象,后来发现用 JSON.stringify(data)的方式就能将对象变成字符串。同时ajax请求的时候也要指定dataType: "json",contentType:"application/json" 这样就可以轻易的将一个对象或者List传到Java端,使用@RequestBody即可绑定对象或者List.

JavaScript 代码:

<script type="text/javascript">
$(document).ready(function(){
var saveDataAry=[];
var data1={"userName":"test","address":"gz"};
var data2={"userName":"ququ","address":"gr"};
saveDataAry.push(data1);
saveDataAry.push(data2);
$.ajax({
type:"POST",
url:"user/saveUser",
dataType:"json",
contentType:"application/json",
data:JSON.stringify(saveData),
success:function(data){
if(data>0){
             alert("插入成功!");
           }else{
             alert("插入失败!");
           }
}
});
});
</script>

Java代码:

 @RequestMapping(value = "saveUser", method = {RequestMethod.POST }})
@ResponseBody
public int saveUser(@RequestBody List<User> users) {
  int result = userService.batchSave(users);
   return result;
}