user.java

来自「java 完全探索的随书源码」· Java 代码 · 共 85 行

import java.io.*;

public class User implements Serializable
{
  // Private instance variables
  private String userName = null;
  private String password = null;

  // Constructor
  public User( String name, String passwd )
  {
    super();
    userName = name;
    password = passwd;
  }

  //Public accessors
  public String getUserName()
  {
    return userName;
  }

  public void setUserName( String name )
  {
    userName = name;
  }

  public String getPassword()
  {
    return password;
  }

  public void setPassword( String passwd )
  {
    password = passwd;
  }

  // Implement the neccessary writeObject method for handling the
  // serialization of this object other than the default way
  private void writeObject( ObjectOutputStream out ) throws IOException
  {
    String userNameEncrypted = encryptStr( getUserName() );
    String passwordEncrypted = encryptStr( getPassword() );
    out.writeObject( userNameEncrypted );
    out.writeObject( passwordEncrypted );
  }

  // Implement the neccessary readObject method for handling the
  // serialization of this object other than the default way
  private void readObject( ObjectInputStream in )
    throws IOException, ClassNotFoundException
  {
    String userNameEncrypted = (String)in.readObject();
    String passwordEncrypted = (String)in.readObject();
    setUserName( decryptStr( userNameEncrypted ));
    setPassword( decryptStr( passwordEncrypted ));
  }

  // Extremely simple encryption routine just do show the point
  // of something being done with the data
  public String encryptStr( String normalStr )
  {
    StringBuffer buf = new StringBuffer( normalStr );
    buf.reverse();
    return buf.toString();
  }

  // Simple decryption routine
  public String decryptStr( String encryptStr )
  {
    StringBuffer buf = new StringBuffer( encryptStr );
    buf.reverse();
    return buf.toString();
  }

  // Override the toString() method from Object to pretty print a User object
  public String toString()
  {
    StringBuffer strBuf = new StringBuffer( "User: " );
    strBuf.append( getUserName() );
    strBuf.append( " Password: " );
    strBuf.append( getPassword() );
    return strBuf.toString();
  }
}