一丶webservice执行存储过程

返回值组合：

json返回

 StringBuilder sb = new StringBuilder();
 sb.Append("{");
 sb.Append("\"Status\":\"" + 123 + "\"");
 sb.Append("}");

json数组

StringBuilder sb = new StringBuilder();
sb.Append("[");
for (int i = ; i < ; i++)
{
     sb.Append("{");
     sb.Append("\"name\":\"" + i + "\",");
     sb.Append("\"name1\":\"" + (i+) + "\"");
     sb.Append("},");
}
sb.Remove(sb.ToString().LastIndexOf(','), );
sb.Append("]");

案例1：

 public void GetClass(string name, string id)
         {
             try
             {
                 string connectString = System.Configuration.ConfigurationSettings.AppSettings["connStr"];
                 SqlConnection conn = new SqlConnection(connectString);
                 conn.Open();
                 SqlCommand comm = new SqlCommand();
                 comm.Connection = conn;
                 comm.CommandText = "PROC_ChoicePersonnel";
                 comm.CommandType = System.Data.CommandType.StoredProcedure;
                 //传值以及赋值
                 SqlParameter[] sps = new SqlParameter[] {
                     new SqlParameter("@ClassName",name),
                     new SqlParameter("@id",id),
                     new SqlParameter("@flag","class")
                   };
                 comm.Parameters.AddRange(sps);

                 SqlDataAdapter sdap = new SqlDataAdapter();
                 sdap.SelectCommand = comm;
                 DataTable dt = new DataTable();
                 sdap.Fill(dt);
                 conn.Close();
                 StringBuilder sb = new StringBuilder();
                 sb.Append("[");
                 for (int i = ; i < dt.Rows.Count; i++)
                 {
                     sb.Append("{");
                     sb.Append("\"id\":\"" + dt.Rows[i]["id"].ToString() + "\",");
                     sb.Append("\"name\":\"" + dt.Rows[i]["name"].ToString() + "\"");
                     sb.Append("},");
                 }
                 sb.Remove(sb.ToString().LastIndexOf(','), );
                 sb.Append("]");
                 Result(sb);
             }
             catch (Exception ex)
             {

             }
         }    

       private void Result(StringBuilder sb)
         {
             Context.Response.Charset = "UTF-8"; //设置字符集类型
             Context.Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
             Context.Response.ContentType = "text/plain";
             Context.Response.Write(sb.ToString());
             Context.Response.End();
         }

 C#后台调用HTTP外网接口

1.get方法调用接口获取json文件内容

 public void GetFunction()
         {

             string serviceAddress = "http://...?aaa=111";
             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(serviceAddress);
             request.Method = "GET";
             request.ContentType = "text/html;charset=UTF-8";
             HttpWebResponse response = (HttpWebResponse)request.GetResponse();
             Stream myResponseStream = response.GetResponseStream();
             StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8);
             string retString = myStreamReader.ReadToEnd();
             myStreamReader.Close();
             myResponseStream.Close();
             Response.Write(retString);
         }

2.post方法调用接口获取json文件内容

 public void PostFunction()
         {

             string serviceAddress = "http://...";
             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(serviceAddress);

             request.Method = "POST";
             request.ContentType = "application/json";
             string strContent = @"{ ""a"": ""1"",""b"": ""2"",""c"": ""3""}";
             using (StreamWriter dataStream = new StreamWriter(request.GetRequestStream()))
             {
                 dataStream.Write(strContent);
                 dataStream.Close();
             }
             HttpWebResponse response = (HttpWebResponse)request.GetResponse();
             string encoding = response.ContentEncoding;
             if (encoding == null || encoding.Length < )
             {
                 encoding = "UTF-8"; //默认编码
             }
             StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(encoding));
             string retString = reader.ReadToEnd();
             //解析josn
             JObject jo = JObject.Parse(retString);
             Response.Write(jo["message"]["mmmm"].ToString());

         } 

3.

        [WebMethod]
         public void tt()
         {
             //地址
             string url = "http://...";
             string a = "";
             string b = "";
             string c = "";
             string d = "";
             //传的参数
             //string datastr1 = "id=" + System.Web.HttpUtility.UrlEncode(ids);
             string datastr1 = "a=" + a + "&b=" + b + "&c=" + c + "&d=" + d+ "&e=";
             //转成字节
             byte[] bytearray1 = Encoding.UTF8.GetBytes(datastr1);
             //创建WebRequest
             HttpWebRequest webrequest = (HttpWebRequest)WebRequest.Create(url);
             //POST方式
             webrequest.Method = "POST";
             // <form encType=””>中默认的encType，form表单数据被编码为key/value格式发送到服务器（表单默认的提交数据的格式）
             webrequest.ContentType = "application/x-www-form-urlencoded";
             //获取字节数
             webrequest.ContentLength = Encoding.UTF8.GetByteCount(datastr1);
             //获取用于写入请求数据的 System.IO.Stream 对象
             Stream webstream = webrequest.GetRequestStream();
             //向当前流中写入字节序列，并将此流中的当前位置提升写入的字节数。
             webstream.Write(bytearray1, , bytearray1.Length);
             //获取返回数据
             HttpWebResponse response = (HttpWebResponse)webrequest.GetResponse();
             //转码
             StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
             //返回的结果
             string ret = sr.ReadToEnd();
         }