邮件系统2（全套增删改查）
作者：互联网
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<form method="post" action="dologin.jsp">
用户名：<input type="text" name="name"/> <br><br><br>
密 码：<input type="text" name="password"/><br>
<hr>
<input type="submit" value="登录">
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="scc.Userdao" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<%
String name=request.getParameter("name");
String password=request.getParameter("password");
Userdao dao=new Userdao();
if(dao.select(name, password)){
request.getRequestDispatcher("main.jsp").forward(request, response);
}else{
response.sendRedirect("login.jsp");
}
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@page import="java.sql.*" %>
<%@page import="scc.JDBCUtils" %>
<%@page import="scc.Msg" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<% String nn=request.getParameter("name");
session.setAttribute("name", nn);
%>
<%
Connection con=null;
PreparedStatement st=null;
ResultSet rst=null;
try{
con=JDBCUtils.getCon();
String sql="select*from msg where sender=?";
st=con.prepareStatement(sql);
st.setString(1, nn);
rst=st.executeQuery();
Msg m=new Msg();
%>
<table border="1" >
<tr>
<td> 标题</td>
<td> 内容</td>
<td> 发件人</td>
<td>收件人</td>
<td> 日期</td>
<td> 状态</td>
</tr>
<% while(rst.next()){ %>
<tr>
<td> <%=rst.getString("title") %></td>
<td> <%=rst.getString("content") %></td>
<td> <%=rst.getString("sender") %></td>
<td><%=rst.getString("recive") %></td>
<td> <%=rst.getString("date") %></td>
<td> <%=rst.getString("state") %></td>
</tr>
<%} %>
</table>
<%
}catch(Exception e){
throw new RuntimeException(e);
}
finally{
JDBCUtils.closeAll(rst, st, con);
}
%>
<br> <br> <br> <br> <br> <br>
<div >
<form action="domain.jsp" method="post">
请输入你的标题
<input type="text" name="t">
<input type="submit" value="搜索标题">
</form>
</div>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="scc.Msgdao" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String tt=request.getParameter("t");
Msgdao d=new Msgdao();
if(d.select1(tt)){
request.getRequestDispatcher("main2.jsp").forward(request, response);
}else{
response.sendRedirect("main.jsp");
}
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@page import="java.sql.*" %>
<%@page import="scc.JDBCUtils" %>
<%@page import="scc.Msg" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String name=(String)session.getAttribute("name");
String tt=request.getParameter("t");
session.setAttribute("title", tt);
Connection con=null;
PreparedStatement st=null;
ResultSet rst=null;
try{
con=JDBCUtils.getCon();
String sql="select*from msg where sender=? and title=? ";
st=con.prepareStatement(sql);
st.setString(1, name);
st.setString(2, tt);
rst=st.executeQuery();
%>
<%
while(rst.next()){
%>
收件人:
<%=rst.getString("recive") %>
<br><br>
标 题: <%=rst.getString("title") %>
<br><br>
内 容: <%=rst.getString("content") %>
<%
if(rst.getString("state")!=null){
st=con.prepareStatement("update msg set state='已读' where sender=? and title=?");
st.setString(1, name);
st.setString(2, tt);
st.executeUpdate();
}
%>
<% } %>
<%
}catch(Exception e){
throw new RuntimeException(e);
}
finally{
JDBCUtils.closeAll(rst, st, con);
}
%>
<br><br>
<form action="add.jsp">
<input type="submit" value="回复">
</form>
<form action="delete.jsp">
<input type="submit" value="删除邮件">
</form>
<form action="exist.jsp">
<input type="submit" value="退出系统">
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@page import="java.sql.*" %>
<%@page import="scc.JDBCUtils" %>
<%@page import="scc.Msg" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String name=(String)session.getAttribute("name");
String tt=(String)session.getAttribute("title");
Connection con=null;
PreparedStatement st=null;
ResultSet rst=null;
try{
con=JDBCUtils.getCon();
String sql="select*from msg where title=? and sender=?";
st=con.prepareStatement(sql);
st.setString(1, tt);
st.setString(2, name);
rst=st.executeQuery();
while(rst.next()){ %>
<form action="add2.jsp" method="post">
收件人:<%=rst.getString("recive")%><br> <br>
标题:<input type="text" name="title1"><br> <br>
内容:<input type="text" name="content1"><br><br>
<input type="submit" value="发送">
</form>
<% }
}catch(Exception e){
throw new RuntimeException(e);
}
finally{
JDBCUtils.closeAll(rst, st, con);
}
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@page import="java.sql.*" %>
<%@page import="scc.JDBCUtils" %>
<%@page import="scc.Msg" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String title1=request.getParameter("title1");
String content1=request.getParameter("content1");
String name=(String)session.getAttribute("name");
String tt=(String)session.getAttribute("title");
Connection con=null;
PreparedStatement st=null;
ResultSet rst=null;
try{
con=JDBCUtils.getCon();
st=con.prepareStatement("select * from msg where title=?and sender=?");
st.setString(1, tt);
st.setString(2, name);
rst=st.executeQuery();
%>
<%while(rst.next()){
st=con.prepareStatement("insert into msg(title,content,sender,recive,date,state)"+"values('"+title1+"','"+content1+"','"+name+"','"+rst.getString("recive")+"','"+rst.getString("date")+"','"+rst.getString("state")
+"')"
);
st.executeUpdate();
request.getRequestDispatcher("login.jsp").forward(request, response);
} %>
<%
}catch(Exception e){
throw new RuntimeException(e);
}
finally{
JDBCUtils.closeAll(rst, st, con);
}
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@page import="java.sql.*" %>
<%@page import="scc.JDBCUtils" %>
<%@page import="scc.Msg" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<%
String name=(String)session.getAttribute("name");
String tle=(String)session.getAttribute("title");
Connection con=null;
PreparedStatement st=null;
ResultSet rst=null;
try{
con=JDBCUtils.getCon();
String sql="delete from msg where sender=? and title=?";
st=con.prepareStatement(sql);
st.setString(1, name);
st.setString(2,tle);
st.executeUpdate();
request.getRequestDispatcher("login.jsp").forward(request, response);
}catch(Exception e){
throw new RuntimeException(e);
}
finally{
JDBCUtils.closeAll(rst, st, con);
}
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<%
response.sendRedirect("login.jsp");
%>
</body>
</html>
标签：用户名,收件人,改查,标题,发件人,邮件系统,增删 来源： https://www.cnblogs.com/gsfwxj1820/p/12829795.html