00b587fb3abd001c10fdbd96ca780ff3

基于Java实现的聊天室功能

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<jsp:useBean id="db" scope="page" class="book.notebook" />
<jsp:useBean id="md5" scope="page" class="book.UtilBean"/>
<%    
   String admin=(String)session.getValue("user");
   if(admin==null)
   { 
	  response.sendRedirect("admin.htm");
   }
   else
   {
     String password1 = md5.makeHacker(request.getParameter("password1"));
     String password2 = md5.makeHacker(request.getParameter("password2"));
     String sql="SELECT * FROM admin WHERE username='"+admin+"'";
     ResultSet rs=db.executeQuery(sql);
     if(rs.next())
     {
        String password=rs.getString("password");
	    if(password.equals(password1))
	    { 
	      String update="update admin set password = '"+password2+"'WHERE username='"+admin+"'";
	      db.executeUpdate(update);
		  out.println("密码修改成功!");
		  out.println("<a href='index.jsp'>返回首页</a>");
	    }
	    else { out.println("原密码有错!");}
     }
     else
     {
       response.sendRedirect("error.htm");
     }
  }
%>