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C#CS与BS数据请求交换

程序员文章站 2022-03-20 18:29:38
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C#CS发送HTTP GET请求
try
            {
                WebRequest req = WebRequest.Create("http://127.0.0.1/test/loginsso.aspx?username=admin&password=admin");
                req.Method = "POST";   //指定提交的Method,可以为POST和GET,一定要大写 
                //byte[] postData = System.Text.Encoding.GetEncoding("gbk").GetBytes("?username=admin&password=admin");//Post的数据 
                //req.ContentLength = postData.Length;
                Stream postStream = req.GetRequestStream();
                //postStream.Write(postData, 0, postData.Length);
                postStream.Close();
                WebResponse res = req.GetResponse();
                System.Text.Encoding resEncoding = System.Text.Encoding.GetEncoding("utf-8");//接收的编码 
                StreamReader reader = new StreamReader(res.GetResponseStream(), resEncoding);
                string html = reader.ReadToEnd();     //接收的Html 
                MessageBox.Show("=========" + html);
                reader.Close();
                res.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show("error");
            }

.NET接收GET发送请求

 Response.ContentEncoding = Encoding.GetEncoding("UTF-8");
            string username = Request["username"];
            string password = Request["password"];
            if (username != "" && username == "admin" && password != "" && password == "admin")
            {
                Response.Write("success");
            }
            else
            {
                Response.Write("error" + Request.Url.Host);
               // Response.Redirect("http://www.g.cn");
          }

.NET接收后请求

System.Text.Encoding resEncoding = System.Text.Encoding.GetEncoding("utf-8");//接收的编码
                StreamReader reader = new StreamReader(Request.InputStream, resEncoding);
                string msg = reader.ReadToEnd();
                reader.Close();

C#CS发送图片附件

C#代码

如果 (!textBox_fileName.Text.Trim()。等于(“” ))  
            {  
                字符串 的loadFile = textBox_fileName.Text.Trim();  
                字符串 文件名= loadFile.Substring(loadFile.LastIndexOf(“\\”)+1,loadFile.Length - 1 - loadFile.LastIndexOf(“ \\”));  
                字符串 urlStr = @ “http://127.0.0.1/test/UploadFile.aspx?name=”  +文件名;  
                UploadFileBinary(的loadFile,urlStr);  
            }  
            其他  
            {  
                字符串 alStr =  “您还没有选择文件” ;  
                MessageBox.Show(alStr, “ 系统提示” ,MessageBoxButtons.OK,MessageBoxIcon.Exclamation,MessageBoxDefaultButton.Button1);  
            }


C#代码

公共无效 UploadFileBinary(字符串 LOCALFILE,  字符串 的uploadURL)    
        {  
            尝试  
            {  
  
                RDR的FileStream =  新 的FileStream(LOCALFILE,FileMode.Open);  
                字节[] = INDATA  新字节[4096];   
                INT  totbytes = 0;  
                MemoryStream的POSTDATA =  新 的MemoryStream();  
                INT  读取动作= rdr.Read(INDATA,0,inData.Length);  
                而 (读取动作> 0)  
                {  
                    postData.Write(INDATA,0,读取动作);  
                    读取动作= rdr.Read(INDATA,0,inData.Length);  
                    totbytes + =读取动作;  
                }  
                rdr.Close();  
                postData.Position = 0;  
                HttpWebRequest的REQ =(HttpWebRequest的)WebRequest.Create(的uploadURL);  
                req.Method =  “POST” ;  
                req.ContentLength =(长)postData.Length;  
                使用 (流S = req.GetRequestStream())  
                {  
                    s.Write(postData.ToArray(),0,(INT )postData.Length);  
                    postData.Close();  
                }  
                WebResponse类RESP = req.GetResponse();  
                System.Text.Encoding resEncoding = System.Text.Encoding.GetEncoding(“UTF-8”); //接收的编码  
                StreamReader的读者=  新 的StreamReader(resp.GetResponseStream(),resEncoding);  
                字符串 味精= reader.ReadToEnd();  
                reader.Close();  
                resp.Close();  
                如果 (MSG!=  空 && msg.Equals( “ 成功” ))  
                {  
                    MessageBox.Show( “ 图片上传成功” ,“提示” );  
                }  
            }  
            赶上 (异常前)  
            {  
                //字符串exContent;  
                // exContent = ex.ToString();  
                MessageBox.Show( “ 上传失败网络出现异常或者图片文件已经存在!” ,“提示” );  
  
            }  
  
        }


.NET接收图片附件文件

C#代码

Response.ContentEncoding = Encoding.GetEncoding(“UTF-8” );  
  
             //在此处放置用户代码以初始化页面  
            字节[]海图=  零;  
            串ls_name;  
            如果 (Request.ServerVariables [ “REQUEST_METHOD” ]的ToString()。ToUpper的()== “POST” )  
            {  
             海图= Request.BinaryRead(Request.ContentLength);   
             //获取文件名称  
             ls_name =的Request.QueryString [ “名” ];           
             //字符串picName = DateTime.Now.Ticks.ToString()+符“.gif”;    
             //字符串picName = DateTime.Now.Ticks.ToString()+“.JPG”;  
             STM的FileStream =  新 的FileStream(使用Server.Mappath(一个“UploadFile /” + ls_name),System.IO.FileMode.CreateNew);  
             stm.Write(海图,0,(INT )theData.Length);  
             stm.Close();  
             的Response.Write( “ 成功” );  
             }  
             其他  
             {  
               的Response.Write( “ 错误” );  
             }