SoapUI 设置 request data with json body

--背景

使用WCF定义REST风格的WebService，如下：

    [ServiceContract]
    public interface INISTService
    {
        [OperationContract, WebInvoke(UriTemplate = "/EnrollTP/{context}",
            RequestFormat = WebMessageFormat.Json,
            ResponseFormat = WebMessageFormat.Json,
            Method = "POST",
            BodyStyle = WebMessageBodyStyle.Bare)]
        bool Enroll(string packageStr, string context);
       
    }

--编写测试代码

由于参数“packageStr”的内容过大超过URI的限定长度，需要将其放入Request对象中，在自己编写客户端代码测试时，将packageStr的值转为BASE64STRING放入参数sendData中，并将其存入到HTTPWebRequest对象中。

HttpWebRequest webRequest = HttpWebRequest.Create(uri) as HttpWebRequest;
                webRequest.Method = "POST";
                webRequest.Accept = AcceptHeader;
                webRequest.ContentType = ContentType;
                if (timeOut != 0)
                    webRequest.Timeout = timeOut;
                Stream stream = webRequest.GetRequestStream();
                using (StreamWriter writer = new StreamWriter(stream))
                {
                    writer.Write(sendData);
                }

--使用SoapUI时，按照接口定义设置request data为JSON类型（copy BASE64STRING into），如图