jquery调用asp.net的WebService

asmx.cs

using System.Web.Script.Services;

[System.Web.Script.Services.ScriptService]
public class test : System.Web.Services.WebService

{

[ScriptMethod(UseHttpGet = true)]

public void testMethod(int id)
{
}

}

js

$.ajax({
url: 'test.asmx/testMethod',
dataType: "json",
data: "id=2",
beforeSend: function(x) {
x.setRequestHeader("Content-Type", "application/json; charset=utf-8");
},
success: function(json) {
var o = eval("(" + json.d + ")");
callBack(o);
}
});

或者向下面这样直接使用也行，原因暂时不明

$.ajax({
type: "POST",
url: "/test.asmx/testMethod",
data: {
htmlStr: "<font color='red'>你好</font>",
Co: 877,
Tablename: "table_2",
buttonId: 96
},
success: function () {
alert("success");
},
error: function () {
}
});