java+mysql学生信息管理系统

其他 2018-06-30 21:19:33 阅读次数: 0

所用工具：myeclipse、dreamweaver CS6、mysql-front、tomcat、mysql-connector-java-5.1.12-bin

功能：用户通过输入密码登录进系统，可以对学生信息进行添加、删除、修改基本信息和密码以及查询等操作。

所有需要建的文件：

1.登录界面：

 

login.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@page import="com.SqlBean,java.sql.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>登录界面</title>
</head>
<script language="javascript">
function check(){
var sid=myform.sid.value;
var password=myform.password.value;
if(sid==null||sid==""||password==null||password==""){
alert("学号和密码不能为空");
return false;
}
return ture;
}
</script>
<body>
<center>
<font size="+3" color="#FF3333" face="Terminal">学生信息管理系统</font>
<br />
<form action="check.jsp" method="post" name="myform">
<table width="268" border="0">
<tr>
<td width="48" height="46">学号：</td>
<td width="210"><input name="sid" type="text" /></td>
</tr>
<tr>
<td height="42">密码：</td>
<td><input name="password" type="password" /></td>
</tr>
<tr>
<td height="38" colspan="2" align="center">
<input name="submit" type="submit" value="提交" onClick="return check()"/>&nbsp;
<input name="reset" type="reset" value="重置" /></td>
</tr>
</table>

</form>
</center>
</body>
</html>

登录页面验证check.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<%@page import="com.SqlBean,java.sql.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>验证页面登录信息</title>
</head>
<body>
<%
request.setCharacterEncoding("gbk");
String sid=request.getParameter("sid");
String password=request.getParameter("password");
SqlBean db=new SqlBean();
String sql="select * from t_user where sid='"+sid+"'and password='"+password+"'";
out.println(sql);
ResultSet re=db.executeQury(sql);
if(re.next()){
session.setAttribute("sid",sid);
response.sendRedirect("index.html");
}
else{
%>
<script type="text/javascript">
alert("你的学号和密码有误，请重新输入！");
window.location.href="login.jsp";
</script>

<% } %>

</body>
</html>

2.搭建整个页面框架，right.html、top.html、left.html。在left中建框架集index.html.

3.显示所有信息页面information.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<%@page import="com.SqlBean,java.sql.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>显示所有信息界面</title>
</head>
<body>
<%
SqlBean db=new SqlBean();
ResultSet re=db.executeQury("select * from t_user");
%>
<center>
<font size="+1">学生信息界面显示</font>
<hr/><br/>
<table border="1">
<tr>
<td width="130">学号</td>
<td width="130">姓名</td>
<td width="80">性别</td>
<td width="310">业余爱好</td>
<td width="190">专业</td>
<td width="150">操作</td>
</tr>
<%
while(re.next()){
%>
<tr>
<td width="130"><%=re.getString("sid") %></td>
<td width="130"><%=re.getString("name") %></td>
<td width="80"><%=re.getString("sex") %></td>
<td width="310"><%=re.getString("hobby") %></td>
<td width="190"><%=re.getString("major") %></td>
<td width="150"><a href="deletedinfo.jsp?sid=<%=re.getString("sid") %>">删除</a>&nbsp;&nbsp;
<a href="updateinfo.jsp?sid=<%=re.getString("sid") %>">修改</a></td>
</tr>

<%} %>
</table>
<%db.close(); %>
</center>
</body>
</html>

4.插入功能

insert.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>添加信息界面</title>
</head>
<script type="text/javascript">
function check(){
var sid=myform.sid.value;
var password=myform.name.value;
if(sid.length!=9){
alert("学号位数不对，要求9位");
return false;
}
if(sid==null||sid==""||name==null||name==""){
alert("学号和姓名不能为空！");
return false;
}
return true;
}
</script>
<body>
<center>
<form action="insertinto.jsp" method="post" name="myform">
<table width="506" height="360" border="1">
<tr>
<td width="133">学号：</td>
<td width="357" align="left"><input name="sid" type="text"/>&nbsp;</td>
</tr>

<tr>
<td>姓名：</td>
<td align="left"><input name="name" type="text"/>&nbsp;</td>
</tr>

<tr>
<td>性别：</td>
<td align="left"><input name="sex" type="radio" value="男" checked/>&nbsp;男<input name="sex" type="radio" value="女"/>女</td>
</tr>


<tr>
<td>专业：</td>
<td align="left"><select name="major" size="1">
<option value="物联网工程" checked>物联网工程</option>
<option value="网络工程" >网络工程</option>
<option value="电子信息技术">电子信息技术</option>
<option value="通信工程">通信工程</option>
</select>&nbsp;</td>
</tr>

<tr>
<td>业余爱好：</td>
<td align="left"><input name="hobby" type="checkbox" value="篮球" checked />篮球&nbsp;
<input name="hobby" type="checkbox" value="足球"/>足球&nbsp;
<input name="hobby" type="checkbox" value="游戏"/>游戏&nbsp;
<input name="hobby" type="checkbox" value="唱歌"/>唱歌&nbsp;
</td>
</tr>

<tr>
<td colspan="2" align="center"><input name="submit" type="submit" value="添加" onClick="return check()"/>
&nbsp;&nbsp;&nbsp;&nbsp;<input name="" type="reset" value="重置"/>
</td>
</tr>
</table>
</form>
</center>


</body>
</html>

insertinto.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<%@page import="com.SqlBean,java.sql.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>添加信息实现代码</title>
</head>
<body>
<%
request.setCharacterEncoding("gbk");
String sid = request.getParameter("sid");
String name = request.getParameter("name");
String sex = request.getParameter("sex");
String major = request.getParameter("major");
String hobbys[] = request.getParameterValues("hobby");
String hobby = "";
for(String str : hobbys){
hobby += str + " ";
}
String password = sid.substring(sid.length() - 6,sid.length());
SqlBean db = new SqlBean();
String sq = "select * from t_user where sid='"+sid+"'";
ResultSet re=db.executeQury(sq);
if(re.next()){
db.close();
%>
<script language="javaScript">
alert("该用户已存在");
window.location.href="insert.jsp";
</script>
<%
}
else{
String sql = "insert into t_user values(null,'"+sid+"','"+name+"','"+password+"','"+sex+"','"+major+"','"+hobby+"')";
out.println(sql);
db.execute(sql);
db.close();
response.sendRedirect("information.jsp");
}

%>
</body>
</html>

5.删除功能

delete.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>删除学生信息界面设计</title>
</head>
<script language="javascript">
function check(){
var sid=myform.sid.value;

if(sid=="null"||sid==""){
alert("学号不能为空！");
return false;
}
return false;
}
return true;
}
</script>
<body>
<center>
<font size="+2">删除信息界面设计</font>
<hr />
<br />
<form action="deletedinfo.jsp" method="post" name="myform">
输入删除学生的学号：
<input type="text" name="sid" />
<br />
<br />
<input type="submit" value="删除 " onclick="return check()"/>
<input type="reset" value="重置"/>

</form>
</center>
</body>
</html>

deletedinfo.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<%@page import="com.SqlBean,java.sql.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>删除学生信息功能实现</title>
</head>
<body>
<%
//为避免乱码，设置编码方式
request.setCharacterEncoding("gbk");
//获取学号信息
String sid = request.getParameter("sid");
//验证学号是否存在
SqlBean db=new SqlBean();

String sql="select * from t_user where sid='" +sid+ "' ";
ResultSet re=db.executeQury(sql);
if(re.next()){
sql="delete from t_user where sid='" +sid+ "' ";
db.execute(sql);
db.close();
%>
<script language="javaScript">
alert("信息删除成功！！！");
window.location.href="information.jsp"
</script>
<%
}
else{
%>
<script language="javaScript">
alert("没有该学号的学生！！！");
window.location.href="deleted.jsp"
</script>
<%
}
%>
</body>
</html>

6.修改功能

update.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>修改学生信息界面设计</title>
</head>
<script language="javascript">
function check(){
var sid=myform.sid.value;
if(sid==null||sid==""){
alert("学号不能为空！！！");
return false;
}
return true;
}
</script>
<body>
<center>
<font size="+2">修改信息界面设计</font>
<hr />
<br />
<form action="updateinfo.jsp" method="post" name="myform">
输入需要修改学生的学号：
<input type="text" name="sid" />
<br />
<br />
<input type="submit" value="查看" onclick="return check()"/>
<input type="reset" value="重置"/>

</form>
</center>
</body>
</html>

updateinfo.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<%@page import="com.SqlBean,java.sql.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>修改界面信息</title>
</head>
<body>
<center>
<font size="+2">修改学生信息界面设计</font>
<hr />
<br />
</center>
<%
//为避免乱码，设置编码方式
request.setCharacterEncoding("gbk");
//获取各个信息，不获取确认密码框的信息
String bpass=request.getParameter("beforepass");
String sid=request.getParameter("sid");

//验证原密码是否正确
SqlBean db = new SqlBean();
String sql="select * from t_user where sid='"+sid+"'";
ResultSet re = db.executeQury(sql);
if(re.next()){
%>
<center>
<form action="updateinformation.jsp" method="post" name="myform">
<table width="506" height="360" border="1">
<tr>
<td width="133">学号：</td>

<td width="357" align="left">
<input name="sid" type="text" readonly
value="<%=re.getString("sid") %>"/>
&nbsp;
</td>
</tr>

<tr>
<td>姓名：</td>
<td align="left">
<input name="name" type="text" value="<%=re.getString("name") %>"/>
&nbsp;
</td>
</tr>
<tr>
<td>
性别：
</td>
<td align="left">
<input name="sex" type="radio" value="男"
<%if (re.getString("sex").equals("男"))
out.print("checked");%>/>
男
<input name="sex" type="radio" value="女"
<%if (re.getString("sex").equals("女"))
out.print("checked");%>/>
女
</td>
</tr>

<tr>
<td>业余爱好：</td>
<td align="left">
<input name="hobby" type="checkbox" value="篮球"
<%if (re.getString("hobby").contains("篮球"))
out.print("checked");%>/>
篮球&nbsp;
<input name="hobby" type="checkbox" value="足球"
<%if (re.getString("hobby").contains("足球"))
out.print("checked");%>/>
足球&nbsp;
<input name="hobby" type="checkbox" value="游戏"
<%if (re.getString("hobby").contains("游戏"))
out.print("checked");%>/>
游戏&nbsp;
<input name="hobby" type="checkbox" value="唱歌"
<%if (re.getString("hobby").contains("唱歌"))
out.print("checked");%>/>
唱歌&nbsp;
</td>
</tr>
<tr>
<td>专业：</td>
<td align="left">
<select name="major" size="1">
<option value="物联网工程"
<%if(re.getString("major").equals("物联网工程"))
out.print("selected");%>>
物联网工程
</option>
<option value="网络工程"
<%if(re.getString("major").equals("网络工程"))
out.print("selected");%>>
网络工程
</option>
<option value="电子信息技术"
<%if(re.getString("major").equals("电子信息技术"))
out.println("selected");%>>
电子信息技术工程
</option>
<option value="通信工程"
<%if(re.getString("major").equals("通信工程"))
out.println("selected");%>>
通信工程
</option>
</select>
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input name="submit" type="submit" value="修改" onclick="return check()"/>

</td>
</tr>
</table>
</form>

</center>
<%
}else{
db.close();

%>
<script language="javaScript">
alert("你输入的学号有误");
window.location.href="update.jsp";
</script>
<%
}
%>
</body>
</html>

updateinformation.jsp

<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<%@page import="com.SqlBean,java.sql.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>修改信息实现代码</title>
</head>
<body>
<%
request.setCharacterEncoding("gbk");
String sid = request.getParameter("sid");
String name = request.getParameter("name");
String sex = request.getParameter("sex");
String major = request.getParameter("major");
String hobbys[] = request.getParameterValues("hobby");
String hobby = "";
for(String str : hobbys){
hobby += str + " ";
}
String password = sid.substring(sid.length() - 6,sid.length());
SqlBean db = new SqlBean();
String sql = "update t_user set name='"
+ name + "',password='" + password + "',sex='"+sex+"',major='" + major + "',hobby='" + hobby + "' where sid='" + sid + "' ";

db.execute(sql);
db.close();
%>
<script language="javaScript">
alert("修改成功，密码为初始密码！");
window.location.href="information.jsp";
</script>
</body>
</html>

运行截图：

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