JSP实现留言板的JavaBean类和分页显示的源码

JSP实现留言板的JavaBean类和分页显示的源码(2)     String connectionUrl="jdbc:mysql://localhost/"+dbName;
    try{
      Class.forName("org.gjt.mm.mysql.Driver");
      connection=DriverManager.getConnection(connectionUrl,dbUser,dbPass);
    }
    catch(Exception e){
      System.out.println(e.toString());
      }
  }

  public void dbQueryMemos(){
    try{
       memoVector=new Vector();
      Statement stmt=connection.createStatement();
      ResultSet rs=stmt.executeQuery("select * from memo;");
      while(rs.next()){
        memoBean temp=new memoBean();
        temp.setId(rs.getString(2));
        temp.setEmail(rs.getString(3));
        temp.setContent(rs.getString(4));
        memoVector.add(temp);
      }

   }
   catch(SQLException e){
     System.out.println(e.toString());
   }

  }

    public void setDbName(String s){
    this.dbName=s;
  }
  public void setDbUser(String s){
    this.dbUser=s;
  }
  public void setDbPass(String s){
    this.dbPass=s;
  }

  public String getDbName(){
    return this.dbName;
  }
  public String getDbUser(){
    return this.dbUser;
  }
  public String getDbPass(){
    return this.dbPass;
  }
    public Vector getMemoVector(){