JSP第十三周作业
1.第十二周上机作业(邮件功能)的控制层代码改用为servlet实现。
2.学习通发布了考试,截止到5.27晚8点。
BaseDao.java
package glg; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class BaseDao { public Connection getConnection() { Connection con = null; try { Class.forName("com.mysql.jdbc.Driver"); con=DriverManager.getConnection("jdbc:mysql://localhost:3306/user","root","990511"); } catch (Exception e) { e.printStackTrace(); } return con; } protected void closeAll(Connection con,PreparedStatement ps,ResultSet rs){ try { if(rs != null) rs.close(); if(ps != null) ps.close(); if(con != null) con.close(); } catch (SQLException e) { e.printStackTrace(); } } }
EmailDao.java
package glg; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import java.util.Date; import java.util.List; import glg2.Email; public class EmailDao extends BaseDao { public List<Email> getAll(String uname) { List<Email> list = new ArrayList<Email>(); Connection con = getConnection(); PreparedStatement pred = null; ResultSet resultSet = null; String sql = "select * from email where sjr=?"; try { pred = con.prepareStatement(sql); pred.setString(1, uname); resultSet = pred.executeQuery(); while (resultSet.next()) { Email email = new Email(); email.setId(resultSet.getInt(1)); email.setFjr(resultSet.getString(2)); email.setSjr(resultSet.getString(3)); email.setTitle(resultSet.getString(4)); email.setContent(resultSet.getString(5)); email.setTime(resultSet.getDate(6)); email.setZt(resultSet.getInt(7)); list.add(email); } } catch (SQLException e) { e.printStackTrace(); } finally { closeAll(con, pred, resultSet); } return list; } public void addEmail(Email e) { Connection con = getConnection(); String sql = "insert into email(fjr,sjr,title,content,time,zt) values(?,?,?,?,?,0)"; PreparedStatement pred = null; try { pred = con.prepareStatement(sql); pred.setString(1, e.getFjr()); pred.setString(2, e.getSjr()); pred.setString(3, e.getTitle()); pred.setString(4, e.getContent()); pred.setDate(5, new java.sql.Date(new Date().getTime())); pred.executeUpdate(); } catch (SQLException e1) { e1.printStackTrace(); } finally { closeAll(con, pred, null); } } public void del(int id) { Connection con = getConnection(); String sql = "delete from email where id=?"; PreparedStatement pred = null; try { pred = con.prepareStatement(sql); pred.setInt(1, id); pred.executeUpdate(); } catch (SQLException e1) { e1.printStackTrace(); } finally { closeAll(con, pred, null); } } public void update(int id) { Connection con = getConnection(); String sql = "update email set zt=1 where id=?"; PreparedStatement pred = null; try { pred = con.prepareStatement(sql); pred.setInt(1, id); pred.executeUpdate(); } catch (SQLException e1) { e1.printStackTrace(); } finally { closeAll(con, pred, null); } } public Email look(int id) { Connection con = getConnection(); String sql = "select id,fjr,sjr,title,content,time from email where id=?"; PreparedStatement pred = null; ResultSet resultSet = null; try { pred = con.prepareStatement(sql); pred.setInt(1, id); resultSet = pred.executeQuery(); while (resultSet.next()) { Email email = new Email(); email.setId(resultSet.getInt(1)); email.setFjr(resultSet.getString(2)); email.setSjr(resultSet.getString(3)); email.setTitle(resultSet.getString(4)); email.setContent(resultSet.getString(5)); email.setTime(resultSet.getDate(6)); return email; } } catch (SQLException e1) { e1.printStackTrace(); } finally { closeAll(con, pred, resultSet); } return null; } }
UserDao.java
package glg; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class UserDao extends BaseDao{ public int Register(String uname,String password){ int i=-1; PreparedStatement pred=null; Connection con=getConnection(); String sql="insert into users(uname,password)values(?,?)"; try { pred= con.prepareStatement(sql); pred.setString(1, uname); pred.setString(2, password); i=pred.executeUpdate(); } catch (SQLException e) { e.printStackTrace(); }finally{ closeAll(con, pred, null); } return i; } public boolean Login(String uname,String password){ boolean f=false; PreparedStatement pred=null; ResultSet resultSet=null; Connection con=getConnection(); String sql="select * from users where uname=? and password=?"; try { pred=con.prepareStatement(sql); pred.setString(1, uname); pred.setString(2, password); resultSet=pred.executeQuery(); while(resultSet.next()){ f=true; } } catch (SQLException e) { e.printStackTrace(); }finally{ closeAll(con, pred, resultSet); } return f; } }
Email.java
package glg2; import java.util.Date; public class Email { private Integer id; private String fjr; private String sjr; private String title; private Date time; private Integer zt; private String content; public String getContent() { return content; } public void setContent(String content) { this.content = content; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getFjr() { return fjr; } public void setFjr(String fjr) { this.fjr = fjr; } public String getSjr() { return sjr; } public void setSjr(String sjr) { this.sjr = sjr; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public Date getTime() { return time; } public void setTime(Date time) { this.time = time; } public Integer getZt() { return zt; } public void setZt(Integer zt) { this.zt = zt; } public Email() { super(); } public Email(Integer id, String fjr, String sjr, String title, Date time, Integer zt, String content) { super(); this.id = id; this.fjr = fjr; this.sjr = sjr; this.title = title; this.time = time; this.zt = zt; this.content = content; } }
User.java
package glg2; public class User { private Integer id; private String uname; private String password; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUname() { return uname; } public void setUname(String uname) { this.uname = uname; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public User() { super(); } public User(Integer id, String uname, String password) { super(); this.id = id; this.uname = uname; this.password = password; } }
DoDeljava
package glg3; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import glg.EmailDao; @WebServlet("/dodel.do") public class DoDel extends HttpServlet { /** * Constructor of the object. */ public DoDel() { 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 { response.setContentType("text/html,charset=utf-8"); request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); EmailDao e=new EmailDao(); String id=request.getParameter("id"); int idd=Integer.parseInt(id); e.del(idd); request.getRequestDispatcher("main.jsp").forward(request, response); } /** * Initialization of the servlet. <br> * * @throws ServletException if an error occurs */ public void init() throws ServletException { // Put your code here } }
DoLogin.java
package glg3; import java.io.IOException; import java.io.PrintWriter; import javax.jms.Session; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import glg.UserDao; @WebServlet("/dologin.do") public class DoLogin extends HttpServlet { /** * Constructor of the object. */ public DoLogin() { 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 { response.setContentType("text/html,charset=utf-8"); request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); String uname = request.getParameter("uname"); String password = request.getParameter("password"); UserDao ud = new UserDao(); HttpSession session = request.getSession(); PrintWriter out = response.getWriter(); if (ud.Login(uname, password)) { session.setAttribute("uname", uname); request.getRequestDispatcher("main.jsp").forward(request, response); } else { out.print("鐧诲綍澶辫触锛屽嵆灏嗚烦鍥炵櫥褰曢〉....."); response.setHeader("refresh", "2;url=Login.jsp"); } } /** * Initialization of the servlet. <br> * * @throws ServletException * if an error occurs */ public void init() throws ServletException { // Put your code here } }
DoLook.java
package glg3; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import glg.EmailDao; import glg2.Email; @WebServlet("/dolook.do") public class DoLook extends HttpServlet { /** * Constructor of the object. */ public DoLook() { 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 { response.setContentType("text/html,charset=utf-8"); request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); String id = request.getParameter("id"); int idd = Integer.parseInt(id); EmailDao e = new EmailDao(); e.update(idd); Email email = e.look(idd); HttpSession session=request.getSession(); session.setAttribute("email", email); request.getRequestDispatcher("look.jsp").forward(request, response); } /** * Initialization of the servlet. <br> * * @throws ServletException * if an error occurs */ public void init() throws ServletException { // Put your code here } }
DoRegister.java
package glg3; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import glg.UserDao; @WebServlet("/doregister.do") public class DoRegister extends HttpServlet { /** * Constructor of the object. */ public DoRegister() { 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 { response.setContentType("text/html,charset=utf-8"); request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); String uname = request.getParameter("uname"); String password = request.getParameter("password"); UserDao ud = new UserDao(); int i=ud.Register(uname, password); PrintWriter out=response.getWriter(); if(i>0){ out.print("娉ㄥ唽鎴愬姛锛屽嵆灏嗚皟鍒扮櫥褰曢〉....."); response.setHeader("refresh", "2;url=Login.jsp"); }else{ out.print("娉ㄥ唽澶辫触锛屽嵆灏嗚皟鍒版敞鍐岄〉....."); response.setHeader("refresh", "2;url=register.jsp"); } } /** * Initialization of the servlet. <br> * * @throws ServletException if an error occurs */ public void init() throws ServletException { // Put your code here } }
DoWrite.java
package glg3; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import glg.EmailDao; import glg2.Email; @WebServlet("/dowrite.do") public class DoWrite extends HttpServlet { /** * Constructor of the object. */ public DoWrite() { 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 { response.setContentType("text/html,charset=utf-8"); request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); Email e=new Email(); HttpSession session=request.getSession(); String fjr=(String)session.getAttribute("uname"); e.setFjr(fjr); String sjr=request.getParameter("sjr"); e.setSjr(sjr); String title=request.getParameter("title"); e.setTitle(title); String content=request.getParameter("content"); e.setContent(content); EmailDao ed=new EmailDao(); ed.addEmail(e); request.getRequestDispatcher("main.jsp").forward(request, response); } /** * Initialization of the servlet. <br> * * @throws ServletException if an error occurs */ public void init() throws ServletException { // Put your code here } }
exit.jsp
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <!DOCTYPE HTML > <html> <head> <title>My JSP 'exit.jsp' starting page</title> </head> <body> <%session.invalidate(); response.sendRedirect("Login.jsp"); %> </body> </html>
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% 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> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> This is my JSP page. <br> </body> </html>
Login.jsp
<%@page import="glg.UserDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML> <html> <head> <base href="<%=basePath%>"> <title></title> </head> <body> <h1>登录</h1> <script> function yz() { if (form.uname.value == null) { alert('用户名不能为空'); return; } if (form.password.value == null) { alert('密码不能为空'); return; } if (form.uname.value != null && form.password.value != null) { form.submit(); } } </script> <form action="dologin.do" method="post" name="form"> <table> <tr> <td>用户名</td> <td><input type="text" name="uname"></td> </tr> <tr> <td>密码</td> <td><input type="password" name="password"></td> </tr> <tr> <td><input type="button" value="登录" onclick="yz()"></td> <td><a href="register.jsp">注册</a></td> </tr> </table> </form> </body> </html>
look.jsp
<%@page import="glg.EmailDao"%> <%@page import="glg2.Email"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML> <html> <head> <title>My JSP 'write.jsp' starting page</title> </head> <body> <% Email email=(Email)session.getAttribute("email"); %> <table> <tr> <td>发件人:</td> <td><input type="text" name="fjr" style="border: none" value="<%=email.getFjr()%>"> </td> </tr> <tr> <td>主题:</td> <td><input type="text" name="title" style="border: none" value="<%=email.getTitle()%>"> </td> </tr> <tr> <td>时间:</td> <td><input type="date" name="time" style="border: none" value="<%=email.getTime()%>"> </td> </tr> <tr> <td>收件人:</td> <td><input type="text" name="sjr" style="border: none" value="<%=email.getSjr()%>"> </td> </tr> <tr> <td>内容:</td> <td><div style="border: none;outline: none;overflow: inherit;"> <%=email.getContent()%></div> </td> </tr> </table> <a href="main.jsp">返回</a> </body> </html>
main.jsp
<%@page import="glg2.Email"%> <%@page import="glg.EmailDao"%> <%@page import="glg.UserDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML> <html> <head> <base href="<%=basePath%>"> <title></title> </head> <body> <% String uname = (String) session.getAttribute("uname"); EmailDao dao = new EmailDao(); List<Email> list = dao.getAll(uname); %> 欢迎<%=uname%> <a href="write1.jsp">写邮件</a> <a href="exit.jsp">退出登录</a> <br> <br> <table border="1px" cellspacing="0" cellpadding="30px"> <thead></thead> <tr> <th>发件人</th> <th>标题</th> <th>时间</th> <th>状态</th> <th>操作</th> <th>操作</th> </tr> <tbody></tbody> <% for (int i = 0; i < list.size(); i++) { %> <tr> <td> <% out.print(list.get(i).getFjr().toString()); %> </td> <td> <a href="dolook.do?id=<%=list.get(i).getId() %>"><% out.print(list.get(i).getTitle().toString()); %></a> </td> <td> <% out.print(list.get(i).getTime().toString()); %> </td> <td> <% if (list.get(i).getZt() == 0) { out.print("<img src='img/w.png'></img>"); } else { out.print("<img src='img/y.png'></img>"); } %> </td> <td><a href="write.jsp?uname=<%=list.get(i).getFjr()%>">回复</a></td> <td><a href="dodel.do?id=<%=list.get(i).getId()%>">删除</a></td> </tr> <% } %> </table> </body> </html>
register.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML> <html> <head> <base href="<%=basePath%>"> <title>注册</title> </head> <body> <h1>注册</h1> <script> function yz() { if (form.uname.value == "") { alert('用户名不能为空'); return; } if (form.password.value == "") { alert('密码不能为空'); return; } form.submit(); } </script> <form action="doregister.do" method="post" name="form"> <table> <tr> <td>用户名</td> <td><input type="text" name="uname"> </td> </tr> <tr> <td>密码</td> <td><input type="password" name="password"> </td> </tr> <tr> <td><input type="button" value="注册" onclick="yz()"> </td> <td><a href="Login.jsp">登录</a> </td> </tr> </table> </form> </body> </html>
write.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML>
<html>
<head>
<title>My JSP 'write.jsp' starting page</title>
</head>
<body>
<form action="dowrite.do" method="post" name="form">
<table>
<tr>
<td>收件人</td>
<td><input type="text" name="sjr" value="<%=request.getParameter("uname") %>">
</td>
</tr>
<tr>
<td>主题</td>
<td><input type="text" name="title">
</td>
</tr>
<tr>
<td>内容</td>
<td><textarea rows="6" cols="20" name="content"></textarea>
</td>
</tr>
<tr>
<td><input type="submit" value="发送">
</td>
</tr>
</table>
</form>
</body>
</html>
write1.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML>
<html>
<head>
<title>My JSP 'write.jsp' starting page</title>
</head>
<body>
<form action="dowrite.do" method="post" name="form">
<table>
<tr>
<td>收件人</td>
<td><input type="text" name="sjr">
</td>
</tr>
<tr>
<td>主题</td>
<td><input type="text" name="title">
</td>
</tr>
<tr>
<td>内容</td>
<td><textarea rows="6" cols="20" name="content"></textarea>
</td>
</tr>
<tr>
<td><input type="submit" value="发送">
</td>
</tr>
</table>
</form>
</body>
</html>