jquery调用WCF

1.添加新项：启用了Ajax的WCF。

2.[ServiceContract(Namespace = "")]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class Service
    {
        [OperationContract]
        public string DoWork(string str)
        {
            return str+"!!!";
        }
    }

3.页面调用

$.ajax({
            url: 'Service.svc/DoWork',
            data: '{ "str": "sfadasdf" }',
            type: 'post',
            dataType: 'json',
            contentType: 'text/json',
            success: function (data) {
                if (data.d) {
                    alert(data.d);
                }
            },
            error: function (xhr) {
                alert(xhr.responseText);
            }
        });

4.传递自定义类型时注意属性要加[DataMember]。

[ServiceContract(Namespace = "")]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class Service
    {
        [OperationContract]
        public Person DoWork(string str)
        {
            return new Person { Name = str + "!!!" };
        }
    }
    [DataContract]
    public class Person
    {
        [DataMember]
        public string Name { get; set; }
    }

脚本调用：
alert(data.d.Name);