如何使用jquery向rails发送json请求?

I would like to send JSON post request to rails 3 server. I have following ajax request:
$.ajax({ type: 'POST', contentType: "application/json", url: url, data: {email: "example@test.com", password: "password"}, success: onSuccess, error: onError, dataType: "json" });

我想把JSON post请求发送到rails 3服务器。我有以下ajax请求:$。ajax({类型:'POST'，内容类型:"application/json"， url: url，数据:{email: "example@test.com"，密码:"password"}， success: onSuccess, error: onError, dataType: "json"});

However the rails server receive the data as following:
{"_json"=>["object Object"]}
Where I want it to receive it as:
{"email"=>"exmaple@test.com", "password"=>"[FILTERED]"}

但是，rails服务器接收数据如下:{"_json"=>["object "]}，我希望它接收为:{"email"=>"exmaple@test.com"， "password"=>"[滤波]"}

I think this is happening because the jquery wraps the data with _json object if the content type is json.

我认为这是因为jquery使用_json对象包装数据，如果内容类型是json。

Does anybody know how I should do this?

有人知道我该怎么做吗?

3 个解决方案

#1

This turns out to be because of bugs in old version of jquery. I now user jquery version 1.5 and send post request as follow:

这是由于旧版本jquery中的错误造成的。我现在使用jquery 1.5版本，并发送如下帖子请求:

$.post(url, { email: emailVal, password: passwordVal }, callback, "json").error(errorHandler);

It now works perfectly fine.

它现在运行得非常好。

#2

have you tried doing the serialization yourself (using jQuery.param)?

您是否尝试过自己进行序列化(使用jQuery.param)?

jQuery.param({email: "example@test.com", password: "password"})
==> "email=example%40test.com&password=password"

So that your ajax request becomes:

这样，您的ajax请求变成:

$.ajax({ type: 'POST',
contentType: "application/json",
url: url, data: $.param({email: "example@test.com", password: "password"}),
success: onSuccess,
error: onError,
dataType: "json"
});

#3

According to jquery docs it seems like if you pass in an object to data it will try some automatic deserialization.

根据jquery文档，似乎如果你将一个对象传递给数据，它会尝试一些自动反序列化。

Set processData: false and then set data to json string.

设置processData: false，然后将数据设置为json字符串。

http://api.jquery.com/jQuery.ajax/

#1