Java Socket图片文件传输方法学习

java socket通信-传输文件图片

ClientTcpSend.java 客户端发送类

package com.yjf.test;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.net.InetSocketAddress;
import java.net.Socket;

public class ClientTcpSend {

    public static String clientip = "127.0.0.1" ;
    public static int port = 33456 ;

    public static void main(String[] args) {
        int length = 0 ;
        byte [] sendBytes = null ;
        Socket socket = null ;
        DataOutputStream dos = null ;
        FileInputStream fis = null ;
        try {
            try {
                socket = new Socket();
                socket.connect( new InetSocketAddress(clientip, port), 30 * 1000 );
                dos = new DataOutputStream(socket.getOutputStream());
                File file = new File( "F:\\aa.xml" );
                fis = new FileInputStream(file);
                sendBytes = new byte [ 1024 * 4 ];
                while ((length = fis.read(sendBytes, 0 , sendBytes.length)) > 0 ) {
                    dos.write(sendBytes, 0 , length);
                    dos.flush();
                }
            } finally {
                if (dos != null )
                    dos.close();
                if (fis != null )
                    fis.close();
                if (socket != null )
                    socket.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

ServerTcpListener.java 服务器监听类

package com.yjf.test;
import <span id= "0_nwp" style= "width: auto; height: auto; float: none;" ><a id= "0_nwl" href= "http://cpro.baidu.com/cpro/ui/uijs.php?c=news&cf=1001&ch=0&di=128&fv=11&jk=7421ce4a3a6c2ba4&k=java&k0=java&kdi0=0&luki=5&n=10&p=baidu&q=06011078_cpr&rb=0&rs=1&seller_id=1&sid=a42b6c3a4ace2174&ssp2=1&stid=0&t=tpclicked3_hc&tu=u1922429&u=http%3A%2F%2Fwww%2Eadmin10000%2Ecom%2Fdocument%2F576%2Ehtml&urlid=0" target= "_blank" mpid= "0" style= "text-decoration: none;" ><span style= "color:#0000ff;font-size:14px;width:auto;height:auto;float:none;" >java</span></a></span>.net.*;
import java.io.*;

public class ServerTcpListener implements Runnable {

    public static void main(String[] args) {

        try {
            final ServerSocket <span id= "1_nwp" style= "width: auto; height: auto; float: none;" ><a id= "1_nwl" href= "http://cpro.baidu.com/cpro/ui/uijs.php?c=news&cf=1001&ch=0&di=128&fv=11&jk=7421ce4a3a6c2ba4&k=server&k0=server&kdi0=0&luki=3&n=10&p=baidu&q=06011078_cpr&rb=0&rs=1&seller_id=1&sid=a42b6c3a4ace2174&ssp2=1&stid=0&t=tpclicked3_hc&tu=u1922429&u=http%3A%2F%2Fwww%2Eadmin10000%2Ecom%2Fdocument%2F576%2Ehtml&urlid=0" target= "_blank" mpid= "1" style= "text-decoration: none;" ><span style= "color:#0000ff;font-size:14px;width:auto;height:auto;float:none;" >server</span></a></span> = new ServerSocket(ClientTcpSend.port);
            Thread th = new Thread( new Runnable() {
                public void run() {
                    while ( true ) {
                        try {
                            System.out.println( "开始监听..." );
                            Socket <span id= "2_nwp" style= "width: auto; height: auto; float: none;" ><a id= "2_nwl" href= "http://cpro.baidu.com/cpro/ui/uijs.php?c=news&cf=1001&ch=0&di=128&fv=11&jk=7421ce4a3a6c2ba4&k=socket&k0=socket&kdi0=0&luki=4&n=10&p=baidu&q=06011078_cpr&rb=0&rs=1&seller_id=1&sid=a42b6c3a4ace2174&ssp2=1&stid=0&t=tpclicked3_hc&tu=u1922429&u=http%3A%2F%2Fwww%2Eadmin10000%2Ecom%2Fdocument%2F576%2Ehtml&urlid=0" target= "_blank" mpid= "2" style= "text-decoration: none;" ><span style= "color:#0000ff;font-size:14px;width:auto;height:auto;float:none;" >socket</span></a></span> = server.accept();
                            System.out.println( "有链接" );
                            receiveFile(socket);
                        } catch (Exception e) {
                        }
                    }
                }

            });

            th.run(); //启动线程运行
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void run() {
    }

    public static void receiveFile(Socket <span id= "3_nwp" style= "width: auto; height: auto; float: none;" ><a id= "3_nwl" href= "http://cpro.baidu.com/cpro/ui/uijs.php?c=news&cf=1001&ch=0&di=128&fv=11&jk=7421ce4a3a6c2ba4&k=socket&k0=socket&kdi0=0&luki=4&n=10&p=baidu&q=06011078_cpr&rb=0&rs=1&seller_id=1&sid=a42b6c3a4ace2174&ssp2=1&stid=0&t=tpclicked3_hc&tu=u1922429&u=http%3A%2F%2Fwww%2Eadmin10000%2Ecom%2Fdocument%2F576%2Ehtml&urlid=0" target= "_blank" mpid= "3" style= "text-decoration: none;" ><span style= "color:#0000ff;font-size:14px;width:auto;height:auto;float:none;" >socket</span></a></span>) {

        byte [] inputByte = null ;
        int length = 0 ;
        DataInputStream <span id= "4_nwp" style= "width: auto; height: auto; float: none;" ><a id= "4_nwl" href= "http://cpro.baidu.com/cpro/ui/uijs.php?c=news&cf=1001&ch=0&di=128&fv=11&jk=7421ce4a3a6c2ba4&k=dis&k0=dis&kdi0=0&luki=2&n=10&p=baidu&q=06011078_cpr&rb=0&rs=1&seller_id=1&sid=a42b6c3a4ace2174&ssp2=1&stid=0&t=tpclicked3_hc&tu=u1922429&u=http%3A%2F%2Fwww%2Eadmin10000%2Ecom%2Fdocument%2F576%2Ehtml&urlid=0" target= "_blank" mpid= "4" style= "text-decoration: none;" ><span style= "color:#0000ff;font-size:14px;width:auto;height:auto;float:none;" >dis</span></a></span> = null ;
        FileOutputStream fos = null ;
        try {
            try {

                dis = new DataInputStream(socket.getInputStream());
                fos = new FileOutputStream( new File( "E:\\aa.xml" ));
                inputByte = new byte [ 1024 * 4 ];
                System.out.println( "开始接收数据..." );
                while ((length = dis.read(inputByte, 0 , inputByte.length)) > 0 ) {
                    fos.write(inputByte, 0 , length);
                    fos.flush();
                }
                System.out.println( "完成接收" );
            } finally {
                if (fos != null )
                    fos.close();
                if (<span id= "5_nwp" style= "width: auto; height: auto; float: none;" ><a id= "5_nwl" href= "http://cpro.baidu.com/cpro/ui/uijs.php?c=news&cf=1001&ch=0&di=128&fv=11&jk=7421ce4a3a6c2ba4&k=dis&k0=dis&kdi0=0&luki=2&n=10&p=baidu&q=06011078_cpr&rb=0&rs=1&seller_id=1&sid=a42b6c3a4ace2174&ssp2=1&stid=0&t=tpclicked3_hc&tu=u1922429&u=http%3A%2F%2Fwww%2Eadmin10000%2Ecom%2Fdocument%2F576%2Ehtml&urlid=0" target= "_blank" mpid= "5" style= "text-decoration: none;" ><span style= "color:#0000ff;font-size:14px;width:auto;height:auto;float:none;" >dis</span></a></span> != null )
                    dis.close();
                if (<span id= "6_nwp" style= "width: auto; height: auto; float: none;" ><a id= "6_nwl" href= "http://cpro.baidu.com/cpro/ui/uijs.php?c=news&cf=1001&ch=0&di=128&fv=11&jk=7421ce4a3a6c2ba4&k=socket&k0=socket&kdi0=0&luki=4&n=10&p=baidu&q=06011078_cpr&rb=0&rs=1&seller_id=1&sid=a42b6c3a4ace2174&ssp2=1&stid=0&t=tpclicked3_hc&tu=u1922429&u=http%3A%2F%2Fwww%2Eadmin10000%2Ecom%2Fdocument%2F576%2Ehtml&urlid=0" target= "_blank" mpid= "6" style= "text-decoration: none;" ><span style= "color:#0000ff;font-size:14px;width:auto;height:auto;float:none;" >socket</span></a></span> != null )
                    socket.close();
            }
        } catch (Exception e) {

        }
    }
}

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