详解Java使用TCP实现数据传输实例

这篇文章主要介绍了java使用tcp实现数据传输实例详解的相关资料,需要的朋友可以参考下

Java使用TCP实现数据传输实例详解

TCP所提供服务的主要特点：

　　1．面向连接的传输；
　　2．端到端的通信；
　　3．高可靠性，确保传输数据的正确性，不出现丢失或乱序；
　　4．全双工方式传输；
　　5．采用字节流方式，即以字节为单位传输字节序列；
　　6．紧急数据传送功能。

TCP传输需要建立客户端和服务器端，即Socket和Server Socket ， 建立连接后，通过Socket中的IO流进行数据的传输 。传输结束后关闭Socket。

立即学习“Java免费学习笔记（深入）”；

bee餐饮点餐外卖小程序

bee餐饮点餐外卖小程序是针对餐饮行业推出的一套完整的餐饮解决方案，实现了用户在线点餐下单、外卖、叫号排队、支付、配送等功能，完美的使餐饮行业更高效便捷！功能演示：1、桌号管理登录后台，左侧菜单 “桌号管理”，添加并管理你的桌号信息，添加以后在列表你将可以看到 ID 和 密钥，这两个数据用来生成桌子的二维码2、生成桌子二维码例如上面的ID为 308，密钥为 d3PiIY，那么现在去左侧菜单微信设置

下载

客户端和服务器端是两个独立的应用程序。

以下是实现基本的TCP数据传输的Demo code：

package javase.day18; 
 
import java.io.BufferedReader; 
import java.io.BufferedWriter; 
import java.io.InputStreamReader; 
import java.io.OutputStreamWriter; 
import java.net.ServerSocket; 
import java.net.Socket; 
 
public class TransTextDemo { 
  public static void main(String[] args) { 
  } 
 
} 
 
class TcpClient2{ 
  public static void main(String[] args) throws Exception{ 
    System.out.println("client start..."); 
    Socket s = new Socket("192.168.1.2",10005); 
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream())); 
    String sendDataStr=null; 
    while((sendDataStr=br.readLine())!=null){ 
      if(sendDataStr.equals("bye")){ 
        break; 
      } 
      bw.write(sendDataStr); 
      bw.newLine(); 
      bw.flush(); 
    } 
    bw.close(); 
  } 
} 
 
class TcpServer2{ 
  public static void main(String[] args) throws Exception{ 
    System.out.println("server start..."); 
    ServerSocket ss = new ServerSocket(10005); 
    Socket s = ss.accept(); 
    BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream())); 
    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream())); 
    String receiveDataStr=null; 
    while((receiveDataStr=br.readLine())!=null){ 
      if(receiveDataStr.equals("bye")){ 
        break; 
      } 
      System.out.println("receive data:"+receiveDataStr); 
    } 
  } 
}

使用TCP实现文本文件上传的Demo code：

package javase.day18; 
 
import java.io.BufferedReader; 
import java.io.FileReader; 
import java.io.FileWriter; 
import java.io.InputStreamReader; 
import java.io.OutputStreamWriter; 
import java.io.PrintWriter; 
import java.net.ServerSocket; 
import java.net.Socket; 
 
public class UploadText { 
 
  public static void main(String[] args) { 
    // TODO Auto-generated method stub 
 
  } 
} 
 
 
 
class TextServer{ 
  public static void main(String[] args) throws Exception{ 
    System.out.println("Server start..."); 
    ServerSocket ss = new ServerSocket(10008); 
    Socket s = ss.accept(); 
    BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream())); 
    PrintWriter out = new PrintWriter(new FileWriter("C:\\java_test\\server.txt"),true); 
    String line=null; 
    while((line=br.readLine())!=null){ 
      System.out.println(line); 
      out.println(line); 
    } 
     
    PrintWriter pw = new PrintWriter(new OutputStreamWriter(s.getOutputStream()),true); 
    pw.println("upload successful"); 
    pw.close(); 
    s.close(); 
    ss.close(); 
  } 
} 
 
 
class TextClient{ 
  public static void main(String[] args) throws Exception{ 
    System.out.println("Client start..."); 
    Socket clientSocket = new Socket("192.168.1.2",10008); 
    BufferedReader br = new BufferedReader(new FileReader("C:\\java_test\\SystemDemo.java")); 
    PrintWriter out = new PrintWriter(clientSocket.getOutputStream(),true); 
    String line=null; 
    while((line=br.readLine())!=null){ 
      System.out.println(line); 
      out.println(line); 
    } 
    clientSocket.shutdownOutput(); 
    BufferedReader br2 = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); 
    String confirmMsgStr=br2.readLine(); 
    System.out.println(confirmMsgStr); 
    br2.close(); 
    clientSocket.close(); 
     
  } 
}

实现图片上传的Demo code：

package javase.day18; 
 
import java.io.BufferedInputStream; 
import java.io.BufferedOutputStream; 
import java.io.FileInputStream; 
import java.io.FileOutputStream; 
import java.net.ServerSocket; 
import java.net.Socket; 
 
public class UploadImage { 
 
  public static void main(String[] args) { 
 
  } 
 
} 
 
class ImageClient{ 
  public static void main(String[] args) throws Exception{ 
    Socket imageClientSocket = new Socket("192.168.1.2",10010); 
    BufferedInputStream bis = new BufferedInputStream(new FileInputStream("C:\\java_test\\client\\生活用品01.jpg")); 
    BufferedOutputStream bos = new BufferedOutputStream(imageClientSocket.getOutputStream()); 
    byte[] buf = new byte[1024*100]; 
    int len = 0 ; 
    while((len=bis.read(buf))!=-1){ 
      bos.write(buf,0,len); 
    } 
    imageClientSocket.shutdownOutput(); 
    BufferedInputStream bis2 = new BufferedInputStream(imageClientSocket.getInputStream()); 
    byte[] buf2 = new byte[1024]; 
    int len2 = 0 ; 
    while((len2=bis2.read(buf2))!=-1){ 
      System.out.println(new String(buf2,0,len2)); 
    } 
    bis.close(); 
    imageClientSocket.close(); 
     
  } 
} 
 
class ImageServer{ 
  public static void main(String[] args) throws Exception{ 
    ServerSocket ss = new ServerSocket(10010); 
    Socket s = ss.accept(); 
    BufferedInputStream bis = new BufferedInputStream(s.getInputStream()); 
    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("C:\\java_test\\server\\生活用品01.jpg")); 
    byte[] buf = new byte[1024*100]; 
    int len = 0 ; 
    while((len=bis.read(buf))!=-1){ 
      bos.write(buf, 0, len); 
    } 
    BufferedOutputStream bos2 = new BufferedOutputStream(s.getOutputStream()); 
    bos2.write("upload successful".getBytes()); 
    bos2.close(); 
    s.close(); 
    ss.close(); 
  } 
}