jQuery AJAX 请求的“400 Bad Request”响应
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"400 Bad Request" response for AJAX request
提问by rob
I have the following jQuery AJAX request:
我有以下 jQuery AJAX 请求：
// collect form data and create user obj
var user = new User();
user.firstname = $("#usrFirstName").val();
user.lastname = $("#usrSurname").val();
user.role = $("#usrRole").val();
// actual ajax request
$.ajax({
type: 'POST',
url : 'http://awesome-url',
crossDomain: true,
data: user,
contentType:"application/json; charset=utf-8",
dataType: 'json'
}).done(function(data, status) {
alert(JSON.stringify(data));
}).fail(function(data, status) {
alert(status);
alert(JSON.stringify(data));
});
The response from the Server is:
来自服务器的响应是：
"status":400,"statusText":"Bad Request"
"The request sent by the client was syntactically incorrect."
" "status":400,"statusText":"Bad Request"
"客户端发送的请求在语法上不正确。
The server is running Spring-MVC. But as far as I can tell it is working correctly. Because if I'm sending a request manually with Postman and the following configuration it works.
服务器正在运行 Spring-MVC。但据我所知，它工作正常。因为如果我使用 Postman 和以下配置手动发送请求，它就可以工作。
Header:
标题：
Content-Type application/json; charset=utf-8
Content:
内容：
{"firstname":"alex","lastname":"lala","role":"admin"}
I have to mention that it is a cross-domain request (for the time developing, it will be hosted on the same domain as the server later). I did disable the security settings in the browser and AJAX requests to the server are working fine (as long as I don't have to send data).
不得不提的是，这是一个跨域请求（开发的时候，以后会和服务器托管在同一个域上）。我确实禁用了浏览器中的安全设置，并且对服务器的 AJAX 请求工作正常（只要我不必发送数据）。
采纳答案by R. Oosterholt
you need to serialize your json, try:
您需要序列化您的 json，请尝试：
$.ajax({
type: 'POST',
url : 'http://awesome-url',
crossDomain: true,
data: JSON.stringify(user),
contentType:'application/json; charset=utf-8',
dataType: 'json'
})
