java web 动态服务器

来源：互联网发布：决策树算法pythin 编辑：程序博客网时间：2024/05/27 20:54

写了一个java web 动态服务器，主要通过内部类来实现，动态类使用了外部类，采用了

classforname 实例化，动态类的构造方法不能带参数，效果都出来了，分享给有需要的

朋友。判断做的不够多，

写得不够好，感谢指出缺点。以下是代码：

静态文件index.html：

<html>                     <head>                              <title>简单的web服务器</title>                     </head>                     <body>                               <div align="center">简单的web静态服务器</div>                      </body>               </html>

主要核心代码：

import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.PrintWriter; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.net.MalformedURLException; import java.net.ServerSocket; import java.net.Socket; import java.net.URL; import java.net.URLClassLoader; /**  * web处理类  */ class WebProcess{  private Request request;  private Response response;  public WebProcess(Request request, Response response) {   // TODO Auto-generated constructor stub   this.request=request;   this.response=response;   this.process();  }  private void process() {   // TODO Auto-generated method stub   String uri=request.getUri();   System.out.println("uri---------------------------"+uri);   String uriSuffix=uri.substring(uri.indexOf('.')+1);   System.out.println("uriSuffix------------"+uriSuffix);   if("htmlxmlhtm".indexOf(uriSuffix)>-1){    System.out.println("静态文件");    File fileToSend=new File(uri);    if(fileToSend.exists()){     System.out.println("存在文件");     try {      FileInputStream fis=new FileInputStream(fileToSend);      byte[] data=new byte[fis.available()];      fis.read(data);      //System.out.println(data.length);      response.out(new String(data));     } catch (FileNotFoundException e) {      // TODO Auto-generated catch block      e.printStackTrace();     } catch (IOException e) {      // TODO Auto-generated catch block      e.printStackTrace();     }    }else{     System.out.println("不存在文件");     response.out("您要访问的网页不存在");    }   }else{    System.out.println("动态文件");    //Visit v=new Visit(response,request);    File fileToSend1=new File(uri);    System.out.println("fileToSend----------------"+fileToSend1);   /* if(fileToSend1.exists()){*/     //System.out.println("类文件存在");     try {      //获取需要的的类的路径      URL url=new URL("file:\\D:\\Users\\Administrator\\Workspaces\\MyEclipse 8.6\\2013-08-21\\src");      String classname=uri;      System.out.println("url-----------------"+url);      ClassLoader cl=new URLClassLoader(new URL[]{url});      Class d=cl.loadClass(classname);      System.out.println(d);      //System.out.println("cl-----------------------"+cl);      Object c=Class.forName(uri).newInstance();      Method method=c.getClass().getMethod("process", Response.class,Request.class);      method.invoke(c,response,request);     } catch (MalformedURLException e) {      // TODO Auto-generated catch block      e.printStackTrace();     } catch (ClassNotFoundException e) {      // TODO Auto-generated catch block      e.printStackTrace();     } catch (InstantiationException e) {      // TODO Auto-generated catch block      e.printStackTrace();     } catch (IllegalAccessException e) {      // TODO Auto-generated catch block      e.printStackTrace();     } catch (SecurityException e) {      // TODO Auto-generated catch block      e.printStackTrace();     } catch (NoSuchMethodException e) {      // TODO Auto-generated catch block      e.printStackTrace();     } catch (IllegalArgumentException e) {      // TODO Auto-generated catch block      e.printStackTrace();     } catch (InvocationTargetException e) {      // TODO Auto-generated catch block      e.printStackTrace();     }    /*}else{     System.out.println("类文件不存在");    }*/       }  }   } /**  * 响应类  */ class Response{  private PrintWriter writer;  public Response(OutputStream outputStream) {   // TODO Auto-generated constructor stub   this.writer=new PrintWriter(outputStream,true);   //this.out(data);  }  public void out(String data) {   // TODO Auto-generated method stub   System.out.println("out()-----------------start");   writer.println(data);     }   } /**  * 请求类  */ class Request{  private InputStream input;  public Request(InputStream inputStream) {   // TODO Auto-generated constructor stub   this.input=inputStream;   //this.getUri();  }  public String getUri(){   String resource=null;   System.out.println("getUri()-------------------start--");   BufferedReader in=new BufferedReader(new InputStreamReader(input));   try {    String line=in.readLine();    resource=line.substring(line.indexOf('/')+1, line.lastIndexOf('/')-5);    System.out.println("resource-----------"+resource);       } catch (IOException e) {    // TODO Auto-generated catch block    e.printStackTrace();   }   return resource;  }   } /**  * @author Administrator  *采用了线程  */ public class ServerWeb implements Runnable {  private static final int port = 8085;  ServerSocket serversocket;  /**   * @param args   */  public ServerWeb(){   new Thread(this).start();      //把当前类设置为一个线程  }    @Override  public void run() {   // TODO Auto-generated method stub   System.out.println("run()---------------------start-----");   try {    serversocket=new ServerSocket(port);    System.out.println("serversocket--------------------"+serversocket.getLocalPort());    while(true){     Socket socket=serversocket.accept();     System.out.println("socket----------------------"+socket.getLocalPort());     Request request=new Request(socket.getInputStream());     Response response=new Response(socket.getOutputStream());     WebProcess webprocess=new WebProcess(request,response);     socket.close();    }   } catch (IOException e) {    // TODO Auto-generated catch block    e.printStackTrace();   }  }        public static void main(String[] args) {   // TODO Auto-generated method stub   new ServerWeb();  }   }

独立动态类的代码：

import java.util.Date; public class Visit {  public Visit(/*Response response, Request request*/) {   // TODO Auto-generated constructor stub   /*this.request=request;   this.response=response;*/   //this.process();  }    public void process(Response response, Request request){   response.out("动态网页"+new Date().toString());   System.out.println("process------------start");  } }