springMVC使用@RequestBody接收Json的过程，解决415的问题ss

今天学习SpringMVC过程中，遇到了用@RequestBody接收Json的问题，开始总是报415，后来翻墙找到了解决办法，本人用的Spring4

Spring配置文件所必须最简配置：

<context:annotation-config /><mvc:annotation-driven /><bean id="jacksonMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>

依赖配置，本人用的gradle

compile 'com.fasterxml.jackson.core:jackson-core:2.6.3'compile 'com.fasterxml.jackson.core:jackson-databind:2.6.3'

后端代码

 @RequestMapping(value = "saveUser", method = {RequestMethod.POST})    @ResponseBody    public void saveUser(@RequestBody List<User> users) {        for (User user : users) {            System.out.println(user.toString());        }    }

public class User {    private String userName;    private String address;    public String getUserName() {        return userName;    }    public void setUserName(String userName) {        this.userName = userName;    }    public String getAddress() {        return address;    }    public void setAddress(String address) {        this.address = address;    }    @Override    public String toString() {        return "User{" +                "username='" + userName + '\'' +                ", address='" + address + '\'' +                '}';    }}

前端代码

$(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:"saveUser",        dataType:"json",        contentType:"application/json",        data:JSON.stringify(saveDataAry),        success:function(data){        }    });});

实验结果

User{username='test', address='gz'}User{username='ququ', address='gr'}

前端网络抓包