留言板jsp+ban+servlert

《留言板jsp+ban+servlert》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、//*留言板servlert*////*login.jsp*//<%@pagelanguage="java"import="java.util.*"pageEncoding="gb2312"%>用户名：
口令：

2、ttype="reset"value="重置"/>//*DoLogin.java*//packageServlet;importjava.io.IOException;importjava.io.PrintWriter;importjavax.servlet.ServletException;importjavax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;imp

3、ortjavax.servlet.http.HttpSession;publicclassDoLoginextendsHttpServlet{publicvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{StringuserName=request.getParameter("username");//获取用户名HttpSessionsession=request.getSession();session.setAttribute("name

4、",userName);//用户名写入session，显示留言时(showMessage.jsp)需要StringpassWord=request.getParameter("password");//获取口令if(userName.equals("admin")&&passWord.equals("123"))//用户名和密码正确response.sendRedirect("messageBoard.jsp");//重定向到留言页面elseresponse.sendError(500,"登陆错误，用户名或密码不正确！");}}//*messageBoard.jsp*//<%@pagec

5、ontentType="text/html;charset=gb2312"%>留言标题：留言内容：

6、="center"height="30">//*DoMessage.java*//packageServlet;importjava.io.IOException;importjava.io.PrintWriter;importjavax.servlet.RequestDispatcher;importjavax.servlet.ServletException;importjavax.servlet.

7、http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;publicclassDoMessageextendsHttpServlet{publicvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)th