springMVC 415 (Unsupported Media Type)

$.ajax({
url:"/pblog/article/add",
type:"POST",
contentType:"application/json",
dataType:"json",
data: JSON.stringify(articleVO),
success:function (result) {
// if(result.success()){
//     alert(1);
// }

}
})

@RequestMapping(value="add", method = RequestMethod.POST)
@ResponseBody
public Result addArticle(@RequestBody ArticleVO articleVO){
Result result = new Result();

return result;
}

<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.7.4</version>
</dependency>