<body>
<%
request.setCharacterEncoding("utf-8");
String uname = (String) session.getAttribute("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 = "admin";
conn = DriverManager.getConnection(url, user, password);
// 连接对象
//conn = BaseDao.getConnection();
%>
<form action="insert.jsp" name="huifu" method="post">
sendto :<input type="text" name="sendtoid"><br> <br>
标题:<input type="text" name="ctitle"><br> <br>
正文:<input type="text" name="ccontent"><br>
<br>
<input type="submit" value="发送">
<a href="main.jsp">返回</a>
</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>
<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>
<body>
<%
request.setCharacterEncoding("utf-8");
String uname = (String) session.getAttribute("uname");
String ctitle = request.getParameter("ctitle");
String ccontent = request.getParameter("ccontent");
String sendtoid = request.getParameter("sendtoid");
String contitle = (String) session.getAttribute("newcontitle");
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 = "admin";
conn = DriverManager.getConnection(url, user, password);
// 连接对象
//conn = BaseDao.getConnection();
%>
<%
if(contitle!=null){
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()) {
ps = conn.prepareStatement("insert into msg(username,title,msgcontent,sendto,state,msg_create_date)" + "values('"
+ rs.getString("sendto") + "','" + ctitle + "','" + ccontent + "','"
+ uname + "','" + "1" + "','"+"2020-05-11"+"')");
ps.executeUpdate();
request.getRequestDispatcher("index.jsp").forward(request, response);
%>
<%
}
}else{
Msg msg = new Msg();
ps = conn.prepareStatement("insert into msg(username,title,msgcontent,sendto,state,msg_create_date)" + "values('"
+ sendtoid + "','" + ctitle + "','" + ccontent + "','"
+ uname + "','" + "1" + "','"+"2020-05-11"+"')");
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>
<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 = "admin";
conn = DriverManager.getConnection(url, user, password);
// 连接对象
//conn = BaseDao.getConnection();
%>
<a href="editemail.jsp">写邮件</a>
<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><a href="content.jsp?id=<%=rs.getInt("msgid")%>"><%=rs.getString("title")%></a></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>
<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>
![](https://img2020.cnblogs.com/blog/1785822/202005/1785822-20200511140825374-460957072.png)
![](https://img2020.cnblogs.com/blog/1785822/202005/1785822-20200511140833977-1672884267.png)
![](https://img2020.cnblogs.com/blog/1785822/202005/1785822-20200511140841132-692413335.png)
![](https://img2020.cnblogs.com/blog/1785822/202005/1785822-20200511140855650-171297354.png)