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  • jsp第七次作业

    <body>
        <form action="dologin.jsp" method="post">
            用户名:<input type="text" name="uname" value="kitty" /><Br> 密码 :<input
                type="password" name="upwd" value="777" /><br> <input
                type="submit" value="登录">
    
        </form>
    </body>
    
    index.jsp
    

      

    <%
        request.setCharacterEncoding("utf-8");
        String uname = request.getParameter("uname");
        String upwd = request.getParameter("upwd");
        UsersDao a = new UsersDao();
        if (a.login(uname, upwd)) {
            request.getRequestDispatcher("main.jsp").forward(request, response);
        } else {
            response.sendRedirect("index.jsp");
        }
    %>
    
    dologin.jsp
    

      

    <body>
        <%
            request.setCharacterEncoding("utf-8");
            String uname = request.getParameter("uname");
            session.setAttribute("uname", uname);
            Connection conn = null;
            PreparedStatement ps = null;
            ResultSet rs = null;
            try {
                Class.forName("com.mysql.jdbc.Driver");
                //加载驱动
                String url = "jdbc:mysql://localhost:3306/users";
                String user = "root";
                String password = "root";
                conn = DriverManager.getConnection(url, user, password);
                // 连接对象
                //conn = BaseDao.getConnection();
        %>
        <table align="center">
            <tr>
                <td>username    </td>
                <td>title   </td>
                <td>msgcontent      </td>
                <td>state   </td>
                <td>sendto   </td>
                <td>msg_create_date</td>
            </tr>
            <%
                Msg msg = new Msg();
                    ps = conn.prepareStatement("select * from msg where username=?");
                    ps.setString(1, uname);
                    rs = ps.executeQuery();
                    while (rs.next()) {
            %>
            <tr>
                <td><%=rs.getString("username")%></td>
                <td><%=rs.getString("title")%></td>
                <td><%=rs.getString("msgcontent")%></td>
    
                <td>
                    <%
                        if (rs.getString("state").equals("1")) {
                    %> <%
         out.print("未读");
     %> <%
         } else {
     %> <%
         out.print("已读");
     %> <%
         }
     %>
                </td>
                <td><%=rs.getString("sendto")%></td>
                <td><%=rs.getString("msg_create_date")%></td>
            </tr>
            <%
                }
            %>
        </table>
        <form action="content.jsp" method="post">
            按标题查询:<input type="text" name="contitle"> <input type="submit"
                value="查询">
        </form>
        <br>
    
        <%
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                //BaseDao.closeAll(conn, ps, rs);
                try {
                    if (rs != null) {
                        rs.close();
                    }
                } finally {
                    try {
                        if (ps != null) {
                            ps.close();
                        }
                    } finally {
                        if (conn != null) {
                            conn.close();
                        }
                    }
                }
            }
        %>
    
    </body>
    
    main.jsp
    

      

    <body>
        <%
            request.setCharacterEncoding("utf-8");
            String uname = (String) session.getAttribute("uname");
            String newstate = null;
            //获取邮件列表页面输入的标题
            String contitle = request.getParameter("contitle");
            Connection conn = null;
            PreparedStatement ps = null;
            ResultSet rs = null;
            try {
                Class.forName("com.mysql.jdbc.Driver");
                //加载驱动
                String url = "jdbc:mysql://localhost:3306/users";
                String user = "root";
                String password = "root";
                conn = DriverManager.getConnection(url, user, password);
                // 连接对象
                //conn = BaseDao.getConnection();
        %>
        <%
            Msg msg = new Msg();
                ps = conn.prepareStatement("select * from msg where title=?and username=?");
                ps.setString(1, contitle);
                ps.setString(2, uname);
                rs = ps.executeQuery();
                while (rs.next()) {
        %>
    
        <form action="" name="huifu" method="post">
            sendto  <%=rs.getString("sendto")%><br> <br>标题:<%=rs.getString("title")%><br>
            <br> 正文:<%=rs.getString("msgcontent")%><br>
            <%
                //更新阅读状态
                        if (rs.getInt("state") == 1) {
                            ps = conn.prepareStatement("update msg set state=? where state=? and title=?");
                            // 执行sql语句
                            ps.setInt(1, 0);
                            ps.setInt(2, 1);
                            ps.setString(3, contitle);
                            ps.executeUpdate();
    
                            break;
                        }
            %>
            <%
                }
            %>
    
    
    
        </form>
        <form action="insert.jsp" method="post">
            <%
                session.setAttribute("uuname", uname);
                session.setAttribute("newcontitle", contitle);
            %><input type="submit" value="回复"> 
        </form>
        <form action="main2.jsp" method="post">
            <%
                session.setAttribute("uuname", uname);
            %>
            <input type="submit" value="返回邮件列表" name="newyjlb">
        </form>
        <form action="delete.jsp" method="post">
            <%
                session.setAttribute("uuname", uname);
                    session.setAttribute("newcontitle", contitle);
            %>
            <input type="submit" value="删除邮件" name="deleteyj">
        </form>
    
    
    
        <%
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                //BaseDao.closeAll(conn, ps, rs);
                try {
                    if (rs != null) {
                        rs.close();
                    }
                } finally {
                    try {
                        if (ps != null) {
                            ps.close();
                        }
                    } finally {
                        if (conn != null) {
                            conn.close();
                        }
                    }
                }
            }
        %>
    
    </body>
    
    content
    

      

    <body>
        <%
            request.setCharacterEncoding("utf-8");
            String uuname = (String) session.getAttribute("uuname");
            //获取邮件列表页面输入的标题
            String contitle = (String) session.getAttribute("newcontitle");
            Connection conn = null;
            PreparedStatement ps = null;
            ResultSet rs = null;
            try {
                Class.forName("com.mysql.jdbc.Driver");
                //加载驱动
                String url = "jdbc:mysql://localhost:3306/users";
                String user = "root";
                String password = "root";
                conn = DriverManager.getConnection(url, user, password);
                // 连接对象
                //conn = BaseDao.getConnection();
        %>
        <%
            Msg msg = new Msg();
                ps = conn.prepareStatement("select * from msg where title=?and username=?");
                ps.setString(1, contitle);
                ps.setString(2, uuname);
                rs = ps.executeQuery();
                while (rs.next()) {
        %>
        <form action="insert2.jsp" name="huifu" method="post">
            sendto  <%=rs.getString("sendto")%><br> <br> 
            
            标题:<input type="text" name="ctitle"><br> <br> 
            
            正文:<input type="text" name="ccontent"><br>
            <input type="submit" value="发送">
        </form>
        <%
            }
        %>
        <%
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                //BaseDao.closeAll(conn, ps, rs);
                try {
                    if (rs != null) {
                        rs.close();
                    }
                } finally {
                    try {
                        if (ps != null) {
                            ps.close();
                        }
                    } finally {
                        if (conn != null) {
                            conn.close();
                        }
                    }
                }
            }
        %>
    
    
    
    
        <br>
    </body>
    
    insert.jsp
    

      

    <body>
        <%
            request.setCharacterEncoding("utf-8");
            String uuname = (String) session.getAttribute("uuname");
            String ctitle = request.getParameter("ctitle");
            String ccontent = request.getParameter("ccontent");
            //获取邮件列表页面输入的标题
            String contitle = (String) session.getAttribute("newcontitle");
            Connection conn = null;
            PreparedStatement ps = null;
            ResultSet rs = null;
            try {
                Class.forName("com.mysql.jdbc.Driver");
                //加载驱动
                String url = "jdbc:mysql://localhost:3306/users";
                String user = "root";
                String password = "root";
                conn = DriverManager.getConnection(url, user, password);
                // 连接对象
                //conn = BaseDao.getConnection();
        %>
        <%
            Msg msg = new Msg();
                ps = conn.prepareStatement("select * from msg where title=?and username=?");
                ps.setString(1, contitle);
                ps.setString(2, uuname);
                rs = ps.executeQuery();
                while (rs.next()) {
                ps = conn.prepareStatement("insert into msg(username,title,msgcontent,sendto,state,msg_create_date)" + "values('"
                        + rs.getString("sendto") + "','" + ctitle + "','" + ccontent + "','"
                        + uuname + "','" + "1" + "','"+"2020-04-27"+"')");
                        ps.executeUpdate();
                        request.getRequestDispatcher("index.jsp").forward(request, response);
        %>
        <%
            }
        %>
        <%
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                //BaseDao.closeAll(conn, ps, rs);
                try {
                    if (rs != null) {
                        rs.close();
                    }
                } finally {
                    try {
                        if (ps != null) {
                            ps.close();
                        }
                    } finally {
                        if (conn != null) {
                            conn.close();
                        }
                    }
                }
            }
        %>
    
    
    
    
        <br>
    </body>
    
    insert2.jsp
    

      

    <body>
        <%
            request.setCharacterEncoding("utf-8");
            String uuname = (String) session.getAttribute("uuname");
            //获取邮件列表页面输入的标题
            //从content.jsp session传过来的
            String contitle = (String) session.getAttribute("newcontitle");
            Connection conn = null;
            PreparedStatement ps = null;
            ResultSet rs = null;
            try {
                Class.forName("com.mysql.jdbc.Driver");
                //加载驱动
                String url = "jdbc:mysql://localhost:3306/users";
                String user = "root";
                String password = "root";
                conn = DriverManager.getConnection(url, user, password);
                // 连接对象
                //conn = BaseDao.getConnection();
        %>
        <table align="center">
            <tr>
                <td>username    </td>
                <td>title   </td>
                <td>msgcontent      </td>
                <td>state   </td>
                <td>sendto   </td>
                <td>msg_create_date</td>
            </tr>
            <%
                Msg msg = new Msg();
                    ps = conn.prepareStatement("delete from msg where title=?and username=?");
                    // 执行sql语句
                    ps.setString(1, contitle);
                    ps.setString(2, uuname);
                    ps.executeUpdate();
                    ps = conn.prepareStatement("select * from msg where username=?");
                    ps.setString(1, uuname);
                    rs = ps.executeQuery();
                    while (rs.next()) {
            %>
            <tr>
                <td><%=rs.getString("username")%></td>
                <td><%=rs.getString("title")%></td>
                <td><%=rs.getString("msgcontent")%></td>
    
                <td>
                    <%
                        if (rs.getString("state").equals("1")) {
                    %> <%
         out.print("未读");
     %> <%
         } else {
     %> <%
         out.print("已读");
     %> <%
         }
     %>
                </td>
                <td><%=rs.getString("sendto")%></td>
                <td><%=rs.getString("msg_create_date")%></td>
            </tr>
            <%
                }
            %>
        </table>
        <%
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                //BaseDao.closeAll(conn, ps, rs);
                try {
                    if (rs != null) {
                        rs.close();
                    }
                } finally {
                    try {
                        if (ps != null) {
                            ps.close();
                        }
                    } finally {
                        if (conn != null) {
                            conn.close();
                        }
                    }
                }
            }
        %>
        <br>
    </body>
    
    delete.jsp
    

      

    <body>
        <%
            //查询邮件列表
            request.setCharacterEncoding("utf-8");
            String uuname = (String) session.getAttribute("uuname");
            Connection conn = null;
            PreparedStatement ps = null;
            ResultSet rs = null;
            try {
                Class.forName("com.mysql.jdbc.Driver");
                //加载驱动
                String url = "jdbc:mysql://localhost:3306/users";
                String user = "root";
                String password = "root";
                conn = DriverManager.getConnection(url, user, password);
                // 连接对象
                //conn = BaseDao.getConnection();
        %>
        <table align="center">
            <tr>
                <td>username    </td>
                <td>title   </td>
                <td>msgcontent      </td>
                <td>state   </td>
                <td>sendto   </td>
                <td>msg_create_date</td>
            </tr>
            <%
            //查询语句(返回的邮件列表)
                Msg msg = new Msg();
                    ps = conn.prepareStatement("select * from msg where username=?");
                    ps.setString(1, uuname);
                    rs = ps.executeQuery();
                    while (rs.next()) {
            %>
            <!-- 把输入内容放在table里 -->
            <tr>
                <td><%=rs.getString("username")%></td>
                <td><%=rs.getString("title")%></td>
                <td><%=rs.getString("msgcontent")%></td>
    
                <td>
                    <%
                    //判断是否读取“1”为未读“0”已读
                        if (rs.getString("state").equals("1")) {
                    %> <%
         out.print("未读");
     %> <%
         } else {
     %> <%
         out.print("已读");
     %> <%
         }
     %>
                </td>
                <td><%=rs.getString("sendto")%></td>
                <td><%=rs.getString("msg_create_date")%></td>
            </tr>
            <%
                }
            %>
    
        </table>
            <form action="content.jsp" method="post">
            按标题查询:<input type="text" name="contitle"> <input type="submit"
                value="查询">
        </form>
        <br>
    
        <%
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                //BaseDao.closeAll(conn, ps, rs);
                try {
                    if (rs != null) {
                        rs.close();
                    }
                } finally {
                    try {
                        if (ps != null) {
                            ps.close();
                        }
                    } finally {
                        if (conn != null) {
                            conn.close();
                        }
                    }
                }
            }
        %>
    
    </body>
    
    main2.jsp
    

      

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  • 原文地址:https://www.cnblogs.com/zz2333/p/12836815.html
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