the server responded with a status of 415 ()-蒲公英云

the server responded with a status of 415 ()

今天前端遇到错误代码：

Failed to load resource: the server responded with a status of 415 (Unsupported Media Type)

因为我们后端使用的是：Spring的@RequestBody接受java对象，所以首先我们要知@RequestBody 是用来干嘛的：接受一个JSON’字符串’；注意是‘字符串’不是JSON对象,如果有与之对应的java实体，会帮助自动转化成java对象。
下面是我遇到的415的错误代码：
前端一个非常简单的代码：

var people= {
    "name":1,
    "age":2
}
$.ajax({                                
    url:"people/test/delPeopleByPrimaryKey",
    type:'POST',
     contentType: "application/x-www-form-urlencoded; charset=utf-8",  
    dataType:'json',//json 返回值类型
    data: JSON.stringify(people),//转化为json字符串
    success:function(data){
    }
});

后端:一个非常简单的接口

@RequestMapping(value = "/delPeopleByPrimaryKey")
void deleteByPrimaryKey(@RequestBody People people){
        System.out.println(people);
}

这样执行后，浏览器控制台报错：

Failed to load resource: the server responded with a status of 415 (Unsupported Media Type)

然后前端把context-Type改为application/json;charset=UTF-8 ，告诉后端我发送的是JSON字符串，并且后端用@RequestBody接受它，你就要帮我把他转成对应的实体对象。

var people= {
    "name":1,
    "age":2
}
$.ajax({                                
    url:"people/test/delPeopleByPrimaryKey",
    type:'POST',
    contentType: "application/json; charset=utf-8",  
    dataType:'json',//json 返回值类型
    data: JSON.stringify(people),//转化为json字符串
    success:function(data){
    }
});