Java Socket使用加密协议传输对象 Java Socket使用加密协议进行传输对象的方法
kongxx 人气:0本文实例讲述了Java Socket使用加密协议进行传输对象的方法。分享给大家供大家参考,具体如下:
前面的几篇文章介绍了Socket中一些常见的用法,但是对于一些有安全要求的应用就需要加密传输的数据,此时就需要用到SSLSocket了。
还是一样需要一个实现了Java.io.Serializable接口的简单Java对象
package com.googlecode.garbagecan.test.socket.ssl; public class User implements java.io.Serializable { private static final long serialVersionUID = 1L; private String name; private String password; public User() { } public User(String name, String password) { this.name = name; this.password = password; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }
SSL Server类,这里需要用到ServerSocketFactory类来创建SSLServerSocket类实例,然后在通过SSLServerSocket来获取SSLSocket实例,这里考虑到面向对象中的面向接口编程的理念,所以代码中并没有出现SSLServerSocket和SSLSocket,而是用了他们的父类ServerSocket和Socket。在获取到ServerSocket和Socket实例以后,剩下的代码就和不使用加密方式一样了。
package com.googlecode.garbagecan.test.socket.ssl; import java.io.BufferedInputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.net.ServerSocket; import java.net.Socket; import java.util.logging.Level; import java.util.logging.Logger; import javax.net.ServerSocketFactory; import javax.net.ssl.SSLServerSocketFactory; public class MyServer { private final static Logger logger = Logger.getLogger(MyServer.class.getName()); public static void main(String[] args) { try { ServerSocketFactory factory = SSLServerSocketFactory.getDefault(); ServerSocket server = factory.createServerSocket(10000); while (true) { Socket socket = server.accept(); invoke(socket); } } catch (Exception ex) { ex.printStackTrace(); } } private static void invoke(final Socket socket) throws IOException { new Thread(new Runnable() { public void run() { ObjectInputStream is = null; ObjectOutputStream os = null; try { is = new ObjectInputStream(new BufferedInputStream(socket.getInputStream())); os = new ObjectOutputStream(socket.getOutputStream()); Object obj = is.readObject(); User user = (User)obj; System.out.println("user: " + user.getName() + "/" + user.getPassword()); user.setName(user.getName() + "_new"); user.setPassword(user.getPassword() + "_new"); os.writeObject(user); os.flush(); } catch (IOException ex) { logger.log(Level.SEVERE, null, ex); } catch(ClassNotFoundException ex) { logger.log(Level.SEVERE, null, ex); } finally { try { is.close(); } catch(Exception ex) {} try { os.close(); } catch(Exception ex) {} try { socket.close(); } catch(Exception ex) {} } } }).start(); } }
SSL Client类和SSL Server类类似,只是将其中获取Socket的方式有所变化,其余的代码也和不使用加密方式一样。
package com.googlecode.garbagecan.test.socket.ssl; import java.io.BufferedInputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.net.Socket; import java.util.logging.Level; import java.util.logging.Logger; import javax.net.SocketFactory; import javax.net.ssl.SSLSocketFactory; public class MyClient { private final static Logger logger = Logger.getLogger(MyClient.class.getName()); public static void main(String[] args) throws Exception { for (int i = 0; i < 100; i++) { Socket socket = null; ObjectOutputStream os = null; ObjectInputStream is = null; try { SocketFactory factory = SSLSocketFactory.getDefault(); socket = factory.createSocket("localhost", 10000); os = new ObjectOutputStream(socket.getOutputStream()); User user = new User("user_" + i, "password_" + i); os.writeObject(user); os.flush(); is = new ObjectInputStream(new BufferedInputStream(socket.getInputStream())); Object obj = is.readObject(); if (obj != null) { user = (User)obj; System.out.println("user: " + user.getName() + "/" + user.getPassword()); } } catch(IOException ex) { logger.log(Level.SEVERE, null, ex); } finally { try { is.close(); } catch(Exception ex) {} try { os.close(); } catch(Exception ex) {} try { socket.close(); } catch(Exception ex) {} } } } }
代码写完了,下面就需要产生keystore文件了,运行下面的命令
在提示输入项中,密码项自己给定,其它都不改直接回车,这里我使用的密码是“mysocket”。
运行Server
运行Client
PS:关于加密解密感兴趣的朋友还可以参考本站在线工具:
文字在线加密解密工具(包含AES、DES、RC4等):
http://tools.softyun.net/password/txt_encode
MD5在线加密工具:
http://tools.softyun.net/password/CreateMD5Password
在线散列/哈希算法加密工具:
http://tools.softyun.net/password/hash_encrypt
在线MD5/hash/SHA-1/SHA-2/SHA-256/SHA-512/SHA-3/RIPEMD-160加密工具:
http://tools.softyun.net/password/hash_md5_sha
在线sha1/sha224/sha256/sha384/sha512加密工具:
http://tools.softyun.net/password/sha_encode
希望本文所述对大家java程序设计有所帮助。
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