本文共 8227 字,大约阅读时间需要 27 分钟。
sever:
//********业务逻辑
using System;
using System.Collections; using System.IO; using System.Net; using System.Net.Sockets; using System.Threading;namespace MyServer {
public class HttpProcessor
{ public TcpClient socket; public HttpServer srv;private Stream inputStream;
public StreamWriter outputStream;public String http_method;
public String http_url; public String http_protocol_versionstring; public Hashtable httpHeaders = new Hashtable(); private static int MAX_POST_SIZE = 10 * 1024 * 1024; // 10MBpublic HttpProcessor(TcpClient s, HttpServer srv) {
this.socket = s; this.srv = srv; }private string streamReadLine(Stream inputStream) {
int next_char; string data = ""; while (true) { next_char = inputStream.ReadByte(); if (next_char == '\n') { break; } if (next_char == '\r') { continue; } if (next_char == -1) { Thread.Sleep(1); continue; }; data += Convert.ToChar(next_char); } return data; } public void process() { // we can't use a StreamReader for input, because it buffers up extra data on us inside it's // "processed" view of the world, and we want the data raw after the headers inputStream = new BufferedStream(socket.GetStream());// we probably shouldn't be using a streamwriter for all output from handlers either
outputStream = new StreamWriter(new BufferedStream(socket.GetStream())); try { parseRequest(); readHeaders(); if (http_method.Equals("GET")) { handleGETRequest(); } else if (http_method.Equals("POST")) { handlePOSTRequest(); } } catch (Exception e) { Console.WriteLine("Exception: " + e.ToString()); writeFailure(); } outputStream.Flush(); // bs.Flush(); // flush any remaining output inputStream = null; outputStream = null; // bs = null; socket.Close(); }public void parseRequest() {
String request = streamReadLine(inputStream); string[] tokens = request.Split(' '); if (tokens.Length != 3) { throw new Exception("invalid http request line"); } http_method = tokens[0].ToUpper(); http_url = tokens[1]; http_protocol_versionstring = tokens[2];Console.WriteLine("starting: " + request);
}public void readHeaders() {
Console.WriteLine("readHeaders()"); String line; while ((line = streamReadLine(inputStream)) != null) { if (line.Equals("")) { Console.WriteLine("got headers"); return; } int separator = line.IndexOf(':'); if (separator == -1) { throw new Exception("invalid http header line: " + line); } String name = line.Substring(0, separator); int pos = separator + 1; while ((pos < line.Length) && (line[pos] == ' ')) { pos++; // strip any spaces } string value = line.Substring(pos, line.Length - pos); Console.WriteLine("header: {0}:{1}",name,value); httpHeaders[name] = value; } }public void handleGETRequest() {
srv.handleGETRequest(this); }private const int BUF_SIZE = 4096;
public void handlePOSTRequest() { // this post data processing just reads everything into a memory stream. // this is fine for smallish things, but for large stuff we should really // hand an input stream to the request processor. However, the input stream // we hand him needs to let him see the "end of the stream" at this content // length, because otherwise he won't know when he's seen it all!Console.WriteLine("get post data start");
int content_len = 0; MemoryStream ms = new MemoryStream(); if (this.httpHeaders.ContainsKey("Content-Length")) { content_len = Convert.ToInt32(this.httpHeaders["Content-Length"]); if (content_len > MAX_POST_SIZE) { throw new Exception( String.Format("POST Content-Length({0}) too big for this simple server", content_len)); } byte[] buf = new byte[BUF_SIZE]; int to_read = content_len; while (to_read > 0) { Console.WriteLine("starting Read, to_read={0}",to_read);int numread = this.inputStream.Read(buf, 0, Math.Min(BUF_SIZE, to_read));
Console.WriteLine("read finished, numread={0}", numread); if (numread == 0) { if (to_read == 0) { break; } else { throw new Exception("client disconnected during post"); } } to_read -= numread; ms.Write(buf, 0, numread); } ms.Seek(0, SeekOrigin.Begin); } Console.WriteLine("get post data end"); srv.handlePOSTRequest(this, new StreamReader(ms));}
public void writeSuccess() {
outputStream.WriteLine("HTTP/1.0 200 OK"); outputStream.WriteLine("Content-Type: text/html;charset=utf-8"); outputStream.WriteLine("Connection: close"); outputStream.WriteLine(""); }public void writeFailure() {
outputStream.WriteLine("HTTP/1.0 404 File not found"); outputStream.WriteLine("Connection: close"); outputStream.WriteLine(""); } }public abstract class HttpServer {
protected int port;
TcpListener listener; bool is_active = true; public HttpServer(int port) { this.port = port; }public void listen() {
// listener = new Socket(0, SocketType.Stream, ProtocolType.Tcp);
IPAddress ipaddress = IPAddress.Parse("127.0.0.1"); //IPEndPoint endpoint = new IPEndPoint(ipaddress, port); //listener.Bind(endpoint); //listener.Blocking = true; //listener.Listen(-1); listener = new TcpListener(ipaddress,port); listener.Start(); while (is_active) { TcpClient s = listener.AcceptTcpClient(); HttpProcessor processor = new HttpProcessor(s, this); Thread thread = new Thread(new ThreadStart(processor.process)); thread.Start(); Thread.Sleep(1); } }public abstract void handleGETRequest(HttpProcessor p);
public abstract void handlePOSTRequest(HttpProcessor p, StreamReader inputData); }public class MyHttpServer : HttpServer {
public MyHttpServer(int port) : base(port) { } public override void handleGETRequest(HttpProcessor p) { Console.WriteLine("request: {0}", p.http_url); p.writeSuccess(); p.outputStream.WriteLine("<html><body><h1>test server</h1>"); p.outputStream.WriteLine("Current Time: " + DateTime.Now.ToString()); p.outputStream.WriteLine("url : {0}", p.http_url);p.outputStream.WriteLine("<form method=post action=/form>");
p.outputStream.WriteLine("<input type=text name=foo value=foovalue>"); p.outputStream.WriteLine("<input type=submit name=bar value=barvalue>"); string str="2332pjd甲方"; for (int i = 0; i < 1000;i++ ) { str += i.ToString(); } p.outputStream.WriteLine("<input type=Data name=Content value=" + str + ">");p.outputStream.WriteLine("</form>");
}public override void handlePOSTRequest(HttpProcessor p, StreamReader inputData) {
Console.WriteLine("POST request: {0}", p.http_url); string data = inputData.ReadToEnd();p.outputStream.WriteLine("<html><body><h1>test server</h1>");
p.outputStream.WriteLine("<a href=/test>return</a><p>"); p.outputStream.WriteLine("postbody: <pre>{0}</pre>", data);}
}//public class TestMain {
//public static int Main(String[] args) { // HttpServer httpServer; // if (args.GetLength(0) > 0) { // httpServer = new MyHttpServer(Convert.ToInt16(args[0])); // } else { // httpServer = new MyHttpServer(8080); // } // Thread thread = new Thread(new ThreadStart(httpServer.listen)); // thread.Start(); // return 0; //}//}
}
//******界面private void button1_Click(object sender, EventArgs e)
{ HttpServer httpServer;httpServer = new MyHttpServer(15000);
Thread thread = new Thread(new ThreadStart(httpServer.listen)); thread.Start(); }Client:
//******业务逻辑
using System;
using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Text;namespace HTTPTEST
{ class Utility { public static string Get(string Url) { //System.GC.Collect(); HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url); request.Proxy = null; request.KeepAlive = false; request.Method = "GET"; //request.ContentType = "application/json; charset=UTF-8"; request.ContentType = "application/x-www-form-urlencoded";//窗体数据被编码为名称/值对形式 request.AutomaticDecompression = DecompressionMethods.GZip; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); if (response != null) { response.Close(); } if (request != null) { request.Abort(); } return retString; }public void Get2()
{ } } } //*********界面private void button1_Click(object sender, EventArgs e)
{ string url = "http://127.0.0.1:15000/123"; //url = "https://www.hao123.com/?tn=97651897_hao_pg"; string content= Utility.Get(url); textBox1.Text = content; }转载地址:http://qgows.baihongyu.com/