如何在不使用查询字符串的情况下使用WCF在UriTemplate中传递JSON字符串
How to pass JSON string in UriTemplate using WCF without using Query string

您必须将WebInvoke与POST方法一起使用。

[OperationContract]
[WebInvoke(Method = "POST",
            RequestFormat = WebMessageFormat.Json,
            ResponseFormat = WebMessageFormat.Json,
            UriTemplate = "SaveData/{id}")]
string SaveData(YourType typeObj);

现在从客户端构造对象，并通过ajax调用发送json字符串化数据。

    var obj = {
        "Name":"Sachin", 
        "City":"Bengalueu", 
        "FimStatus":"false", 
        ...
    };
    $.ajax({
        type: "POST",
        url: "http://localhost/wcf.svc/SaveData/0",
        data: JSON.stringify(obj),
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        processData: true,
        success: function (data, status, jqXHR) {
            alert("success..." + data);
        },
        error: function (xhr) {
            alert(xhr.responseText);
        }
    });