<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'register.jsp' starting page</title>
</head>
<body>
<script type="text/javascript">
function validate(){
if(registerForm.uname.value==""){
alert("账号不能为空!");
return;
}
if(registerForm.upwd.value==""){
alert("密码不能为空!");
return;
}
registerForm.submit();
}
</script>
<form name="registerForm" action="DoregServlet" method="post">
用户名:<input type="text" name="uname"><br>
密 码: <input type="password" name="upwd"> <br>
<input type="submit" value="注册" >
<a href="denglu.jsp">登录</a>
</form>
</body>
</html>
package com.yxt.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.yxt.dao.MsgDao;
import com.yxt.entity.Msg;
public class Dowriteservlet extends HttpServlet {
/**
* Constructor of the object.
*/
public Dowriteservlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
request.setCharacterEncoding("utf-8");
String uname = (String) request.getSession().getAttribute("uname");
String sendto = request.getParameter("receiver");
String title = request.getParameter("title");
String content = request.getParameter("content");
Msg m = new Msg();
m.setMsgcontent(content);
m.setUsername(uname);
m.setSendto(sendto);
m.setTitle(title);
MsgDao md = new MsgDao();
md.addMsg(m);
out.print("发送成功.....");
response.setHeader("refresh", "3;url=main.jsp");
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response); }
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title>My JSP 'write.jsp' starting page</title>
</head>
<body>
<form action="DowriteServlet" method="post">
收件人:<input type="text" name="receiver" value="<%=request.getParameter("reply")%>"><br>
主题: <input type="text" name="title" ><br>
内容 <textarea rows="6" cols="20" name="content"></textarea>
<br>
<input type="submit" value="发送"><br>
<a href="main.jsp">返回</a>
</form>
</body>
</html>
package com.yxt.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.yxt.dao.MsgDao;
import com.yxt.dao.UsersDao;
public class Doregservlet extends HttpServlet {
/**
* Constructor of the object.
*/
public Doregservlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
request.setCharacterEncoding("utf-8");
String uname = request.getParameter("uname");
String upwd = request.getParameter("upwd");
UsersDao ud = new UsersDao();
MsgDao md = new MsgDao();
if (ud.register(uname, upwd) > 0) {
request.getSession().setAttribute("uname", uname);
request.getRequestDispatcher("denglu.jsp").forward(request,
response);
} else {
out.print("注册失败，请重新注册.......");
response.setHeader("refresh", "3;url=reg.jsp");
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response);
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
package com.gd.servelet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.gd.dao.UsersDao;
public class Dologinservlet extends HttpServlet {
/**
* Constructor of the object.
*/
public Dologinservlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request,response);
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String uname = request.getParameter("uname");
String upwd = request.getParameter("upwd");
UsersDao ud = new UsersDao();
if (ud.login(uname, upwd)) {
request.getSession().setAttribute("uname", uname);
request.getRequestDispatcher("main.jsp").forward(request, response);
} else {
response.setHeader("refresh", "5;url=denglu.jsp");
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
