向控制器发送表格数据时，出现415不支持的媒体类型错误

Question

This is the jquery function which returns 415 media type not found error

$('#save').on('click',function(){
    alert("test");
    var data = JSON.stringify(jQuery('#form').serializeArray());
    console.log("data"+data);
    $.ajax({
        type: "POST",
        url: "saveExpenses",
        data: JSON.stringify(jQuery('#form').serializeArray()),
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        cache: true,
        success: function(data){alert("Success");}
    })
})

and the controller:

@RequestMapping(value="/saveExpenses",method=RequestMethod.POST)
public String saveExpense(@RequestBody ExpensesSummary expenses, HttpServletRequest request,HttpSession session){
    System.out.println("first name"+expenses.getFirstName());
    String message = homeBankingDao.expenseSummary(expenses);
    request.getSession().setAttribute("message",message);
    return "login";
}

Answer 1

Perhaps you should have a look to produce and consume annotations and attributes. Those posts may certainly help:

• Multiple scenarios @RequestMapping produces JSON/XML together with Accept or ResponseEntity
• Spring 3.1 or Later @RequestMapping Consumes/Produces
• Spring Mvc and MediaType for consumes in @RequestMapping for a get rest request
• Spring RequestMapping for controllers that produce and consume JSON

Or I don't get it...

EDIT :

• if the error (415) is thrown from your jquery function then you should certainly also define the "accept: application/json" thing in your original query. Cf. this post .

• If server-side, you should also check that Jackson is present in your libraries. Cf. this post .