使用socket进行服务端与客户端传文件的方法

package com.ysk;import java.io.BufferedReader;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStream;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;import java.net.UnknownHostException;public class Client {  public static void main(String[] args) {    try {      Socket socket = new Socket("127.0.0.1", 5555);      OutputStream os = socket.getOutputStream();// 字节输出流      PrintWriter pw = new PrintWriter(os);      pw.write("aa.txt");//输入需要搜索的文件名      pw.flush();      socket.shutdownOutput();      BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));      String a = "";      String temp = "";      while ((temp = in.readLine()) != null) {        a += temp;      }      PrintWriter out = new PrintWriter(new OutputStreamWriter(new FileOutputStream("src//asb.txt")));      out.write(a);      out.flush();      out.close();    } catch (UnknownHostException e) {      e.printStackTrace();    } catch (IOException e) {      e.printStackTrace();    } finally {    }  }}

package com.ysk;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;public class Server {  static ServerSocket serverSocket;  public static void main(String[] args) {    try {      serverSocket = new ServerSocket(5555);      System.out.println("***服务器即将启动，等待客户端的连接***");      Socket socket = serverSocket.accept();      BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));      String file = br.readLine();      findFile("src", file);      if (result) {        System.out.println("已找到" + file);        File f = new File(file);//       File copyfile = new File("src//file", "bb.txt");        BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(filepath + file)));        System.out.println(filepath + file);        String a = "";        String temp = "";        while ((temp = in.readLine()) != null) {          a += temp;        }        PrintWriter out = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));        out.write(a);        out.flush();        socket.shutdownOutput();      } else {        System.out.println("未找到文件");      }    } catch (IOException e) {      e.printStackTrace();    }  }