Socket理解-代码保存（服务器代码）

package com.socket.test;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MyHttpServer3 {
		public static void main(String[] args) {
			try{
				ServerSocket serverSocket=new ServerSocket(8880);
				while(true){
					Socket clientSocket=serverSocket.accept();
					
					InputStream inStream=clientSocket.getInputStream();
					InputStreamReader inReader=new InputStreamReader(inStream);
					BufferedReader buffReader=new BufferedReader(inReader);
					String line=buffReader.readLine();
					if(line==null){
						buffReader.close();
						inReader.close();
						inStream.close();
						continue;
					}
					
					System.out.println("客户端请求："+line);
					String filename=line.split(" ")[1];
					System.out.println("读取"+filename);
					
					OutputStream outStream=clientSocket.getOutputStream();
					OutputStreamWriter outWriter=new OutputStreamWriter(outStream);
					outWriter.write("HTTP/1.1 200 OK\r\n");
					outWriter.write("\r\n");
					outWriter.flush();
					
					if(filename.contains("?")){
						if(filename.startsWith("/add?")){
							Pattern pattern=Pattern.compile("i=(\\d+)&j=(\\d+)");
							Matcher matcher=pattern.matcher(line);
							if (matcher.find()) {
								int i=Integer.parseInt(matcher.group(1));
								int j=Integer.parseInt(matcher.group(2));
								int r=i+j;
								outWriter.write("<html><head></head><body>");
								outWriter.write(i+"+"+j+"="+r);
								outWriter.write("</body>");
							}
						}
						else if(filename.startsWith("/login?")){
							Pattern pattern = Pattern.compile("username=(.+?)&password=(.+?) HTTP/1.1");
							Matcher matcher = pattern.matcher(line);//GET /login?username=admin&password=123 HTTP/1.1
							if(matcher.find()){
								String username = matcher.group(1);
								String password = matcher.group(2);
								outWriter.write("<html><head></head><body>");
								if(username.equals("admin")&&password.equals("admin")){
									outWriter.write("登录成功");
								}
								else{
									outWriter.write("登录失败");
								}
								outWriter.write("</body></html");
							}
						}
						else if(filename.startsWith("/showUsers")){
							outWriter.write("<html><head></head><body>");
							outWriter.write("<table><thead><tr><td>Id</td><td>UserName</td><td>Password</td></tr></thead>\r\n");
							outWriter.write("<tbody>\r\n");
							try{
								ResultSet rs=JdbcUtils.executeQuery("select * from T_Users");
								while(rs.next()){
									int id=rs.getInt("Id");
									String username=rs.getString("UserName");
									String password=rs.getString("Password");
									outWriter.write("<tr><td>"+id+"</td><td>"+username+"</td><td>"+password+"</td></tr>\r\n");
								}
							}catch(SQLException e){
								e.printStackTrace();
							}
							outWriter.write("</tbody></table>\r\n");
							outWriter.write("</body></html");
							
						}
					}
					else{
						File file=new File("F:\\JavaWorkspace\\MyWeb", filename);
						if(file.exists()&&file.isFile()){
							FileInputStream fileInputStream=new FileInputStream(file);
							copy(fileInputStream,outStream);
							fileInputStream.close();
						}
						else{
							outWriter.append("没有找到");
						}
					}
					outWriter.close();
					outStream.close();
					clientSocket.close();
				}
			}catch(IOException e){
				e.printStackTrace();
			}
		}
		
		public static void copy(InputStream inStream,OutputStream outStream) throws IOException{
			byte[] bytes=new byte[1024];
			int len;
			while((len=inStream.read(bytes))>0){
				outStream.write(bytes, 0, len);
			}
		}
}
Socket理解-代码保存（服务器代码）

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