SpringMVC的请求-获得请求参数-获得集合类型参数2

当使用ajax提交时，可以指定contentType为json形式，那么在方法参数位置使用@RequestBody可以直接接收集合数据而无需使用POJO进行包装

<script src="${pageContext.request.contextPath}/js/jquery-3.3.1.js"></script><script>var userList = new Array();userList.push({username:"zhangsan",age:18});userList.push({username:"lisi",age:28});$.ajax({type:"POST",url:"${pageContext.request.contextPath}/user/quick15",data:JSON.stringify(userList),contentType:"application/json;charset=utf-8"});</script>

@RequestMapping(value="/quick15")@ResponseBodypublic void save15(@RequestBody List<User> userList) throws IOException {System.out.println(userList);}