2.返回對象類型
[WebMethod]
public User GetUser()
{
User user = new User() { Id = 1, UserName = "zhang san", Password = "123qwe" };
return user;
}
$.ajax({
type: "post",
contentType: "application/json",
url: "UserService.asmx/GetUser",
data: "{}",
dataType: "json",
success: function (result) {
alert(result.d.Id + " " + result.d.UserName);
}
});
3.返回泛型集合類型
[WebMethod]
public List<User> GetUserList()
{
List<User> list = new List<User>()
{
new User{Id=1,UserName="zhang san",Password="asfasdf"},
new User{Id=2,UserName="li si",Password="3rwer"},
new User{Id=3,UserName="wang wu",Password="rqwe"}
};
return list;
}
$.ajax({
type: "post",
contentType: "application/json",
url: "UserService.asmx/GetUserList",
data: "{}",
dataType: "json",
success: function (result) {
$.each(result.d, function (index, data) {
alert(data.Id+" "+data.UserName);
});
}
});
對于泛型集合，對應的相應正文為：{"d":[{"__type":"WebServiceDemo.User","Id":1,"UserName":"zhang san","Password":"asfasdf"},{"__type":"WebServiceDemo.User","Id":2,"UserName":"li si","Password":"3rwer"},{"__type":"WebServiceDemo.User","Id":3,"UserName":"wang wu","Password":"rqwe"}]}。這時，result.d得到的是一個數組，通過each方法來遍歷數組的每一項的屬性值。
4.傳遞參數。在傳遞參數的時候，需要注意的是，ajax請求的參數的名稱必須和WebService中的方法的名稱一致，否則調用不能成功。
[WebMethod]
public string Hello(string name)
{
return "Hello " + name;
}
$.ajax({
type: "post",
contentType: "application/json",
url: "UserService.asmx/Hello",
data: "{name:'admin'}",
dataType: "json",
success: function (result) {
alert(result.d);
}
});
