jQuery POST JSON 数据到 .asmx 网络服务
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POST JSON data to .asmx webservice
提问by swandog
I'm trying to post some simple parameters to a .asmx webservice.
I get the following error: Request format is invalid: application/json; charset=utf-8.
What I really need to get to is to be able to pass a complex object, but I can't get past making a POST request with json content type.
我正在尝试将一些简单的参数发布到 .asmx 网络服务。
我收到以下错误：请求格式无效：application/json; 字符集=utf-8。
我真正需要的是能够传递一个复杂的对象，但我无法通过使用 json 内容类型发出 POST 请求。
Here is my WebService Definition
这是我的 WebService 定义
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public int JsonTest2(int myparm1, int myparm2)
{
return 101;
}
And this is my javascript code
这是我的 javascript 代码
function JsonTest2() {
$.ajax({
type: 'POST',
url: "http://localhost/WebServices/MyTest.asmx/JsonTest2",
data: "{myparm1:105,myparm2:23}",
contentType: 'application/json; charset=UTF-8',
dataType: 'json',
async: false,
success: function (msg) {
alert(msg);
},
error: function (msg) {
alert('failure');
alert(msg);
}
});
}
回答by Dave Ward
Make sure your ASMX service class is decorated with the [ScriptService]attribute.
确保您的 ASMX 服务类使用该[ScriptService]属性进行修饰。
回答by Oleg
You should use as datathe value which formatted as correct JSON data:
您应该使用作为data正确 JSON 数据格式的值：
{"myparm1":105,"myparm2":23}
instead of
代替
{myparm1:105,myparm2:23}
You can validate on the site http://www.jsonlint.com/which data are JSON data. So you should change your code to
您可以在站点http://www.jsonlint.com/上验证哪些数据是 JSON 数据。所以你应该把你的代码改成
$.ajax({
type: 'POST',
url: "http://localhost/WebServices/MyTest.asmx/JsonTest2",
data: '{"myparm1":105,"myparm2":23}',
contentType: 'application/json; charset=UTF-8',
dataType: 'json',
async: false,
success: function (msg) {
alert(msg.d);
},
error: function (msg) {
alert('failure');
alert(msg);
}
});
In case of more complex input parameters I recommend you to use JSON.stringifyfunctionfrom the json2.js(see this answerfor example):
如果输入参数更复杂，我建议您使用json2.js 中的JSON.stringify函数（例如，请参阅此答案）：
var myValue1 = 105, myValue2 = 23;
$.ajax({
type: 'POST',
data: JSON.stringify({myparm1:myValue1, myparm2:myValue2}),
...
});
In the last version of $.ajaxusage the myValue1and myValue2can be complex structures (objects with properties) or arrays having even another complex structures or arrays as the properties.
在使用的最后一个版本中$.ajax，myValue1和myValue2可以是复杂结构（具有属性的对象）或具有甚至另一个复杂结构或数组作为属性的数组。
回答by Arun Manjhi
Make sure the URL contains port number when using localhost.
使用 localhost 时，请确保 URL 包含端口号。
url: "http://localhost:1297/WebServices/MyTest.asmx/JsonTest2",
