JSP-簡易學生資訊管理系統
阿新 • • 發佈：2019-01-04
新建學生資訊資料庫
1.新增記錄模組
<%@ page contentType="text/html" pageEncoding="UTF-8"%>
<html>
<head>
<title>新增新學生</title>
</head>
<body>
<form action="stuinsert2.jsp" method="post">
<table border="0" width="238" heigth="252">
<tr> <%@ page language="java" import="java.sql.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>新增學生處理程式</title>
</head>
<body>
<% Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String url="jdbc:sqlserver://localhost:1433; DatabaseName=p";
String user="sa";
String password="123456";
Connection conn=DriverManager.getConnection(url,user,password);
request.setCharacterEncoding("UTF-8");
String id=request.getParameter("id");
String name=request.getParameter("name");
String sex=request.getParameter("sex");
int age=Integer.parseInt(request.getParameter("age"));
String sdept=request.getParameter("sdept");
String sql=String.format("select * from student where Sno=%s",id);
Statement stmt=conn.createStatement();
PreparedStatement pstmt;
ResultSet rs=stmt.executeQuery(sql);
if(!(rs.next())){
pstmt=conn.prepareStatement("insert into Student values(?,?,?,?,?)");
pstmt.setString(1,id);
pstmt.setString(2,name);
pstmt.setString(3,sex);
pstmt.setInt(4,age);
pstmt.setString(5,sdept);
pstmt.executeUpdate();
out.print("新增成功");
%>
<a href="stuinsert.jsp">返回選單</a><br>
<a href="main.jsp"></a>
<%}else{
out.println("該學號已存在");%>
<a href="stuinsert.jsp">重新新增</a>
<%}%>
</body>
</html>
2.查詢(all)模組
<%@ page language="java" import="java.sql.*" pageEncoding="UTF-8"%>
<%@ page import="javax.sql.*" %>
<%@ page import="javax.naming.*" %>
<html>
<head>
<title>資訊檢視頁面</title>
</head>
<body>
<center>
<% DataSource ds=null;
InitialContext ctx=new InitialContext();
ds=(DataSource)ctx.lookup("java:comp/env/jdbc/sqlserver");
Connection conn=ds.getConnection();
PreparedStatement pstmt=conn.prepareStatement("select * from Student");
ResultSet rs=pstmt.executeQuery();
%>
<table border="2" bgcolor="ccceee" width="650">
<tr bgcolor="CCCCCC" align="center">
<td>記錄條數</td><td>學號</td><td>姓名</td>
<td>性別</td><td>年齡</td><td>專業</td>
</tr>
<%
while(rs.next()){
%>
<tr align="center">
<td><%=rs.getRow()%></td>
<td><%=rs.getString(1)%></td>
<td><%=rs.getString(2)%></td>
<td><%=rs.getString(3)%></td>
<td><%=rs.getString(4)%></td>
<td><%=rs.getString(5)%></td>
</tr>
<%}%>
</center>
<%if(rs!=null){rs.close();}
if(pstmt!=null){pstmt.close();}
if(conn!=null){conn.close();}
%>
</table>
</body>
</html>
條件查詢模組
<%@ page language="java" pageEncoding="UTF-8"%>
<html>
<head>
<title>My JSP 'stufind2.jsp' starting page</title>
</head>
<body>
請選擇查詢條件<hr width="100%" size="3">
<form action="stufind3.jsp" method="post">
性別<input type="radio" value="男" name="sex" checked="checked">男
<input type="radio" value="女" name="sex">女
年齡範圍：<p>
最小：<input type="text" name="a1"><br><br>
最大：<input type="text" name="a2"><p>
<input type="submit" value="提交">
<input type="reset" value="取消">
</form>
</body>
</html>
<%@ page contentType="text/html" import="java.sql.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>條件查詢處理頁面</title>
</head>
<body>
<center>
<%Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String user="sa";
String password="123456";
String url="jdbc:sqlserver://localhost:1433;DatabaseName=p";
Connection conn=DriverManager.getConnection(url,user,password);
request.setCharacterEncoding("UTF-8");
String sex=request.getParameter("sex");
int age1=Integer.parseInt(request.getParameter("a1"));
int age2=Integer.parseInt(request.getParameter("a2"));
String sql="select * from Student where Ssex=? and Sage>=? and Sage<=?";
PreparedStatement pstmt=conn.prepareStatement(sql);
pstmt.setString(1,sex);
pstmt.setInt(2,age1);
pstmt.setInt(3,age2);
ResultSet rs=pstmt.executeQuery();
%>
<table border="2" bgcolor="ccceee" width="650">
<tr bgcolcor="CCCCCC" align="center">
<td>記錄條數</td><td>學號</td><td>姓名</td>
<td>性別</td><td>年齡</td><td>專業</td>
</tr>
<%while(rs.next()){ %>
<tr align="center">
<td><%=rs.getRow()%></td>
<td><%=rs.getString(1)%></td>
<td><%=rs.getString(2)%></td>
<td><%=rs.getString(3)%></td>
<td><%=rs.getString(4)%></td>
<td><%=rs.getString(5)%></td>
</tr>
<%}%>
</table>
<%if(rs!=null){rs.close();}
if(pstmt!=null){pstmt.close();}
if(conn!=null){conn.close();}
%>
</center>
</body>
</html>
3.修改模組
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>修改提交頁面</title>
</head>
<body>
<center>
請選擇修改記錄所滿足的條件
<form action="stuupdate2.jsp" method="post">
姓名： <input type="text" name="name"><br><br>
性別： 男<input type="radio" value="男" name="sex">
女<input type="radio" value="女" name="sex"><br><br>
<input type="submit" value="提交">
<input type="reset" value="取消">
</form>
</center>
</body>
</html>
<%@ page contentType="text/html" import="java.sql.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>修改編輯頁面</title>
</head>
<body>
<% Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String user="sa";
String password="123456";
String url="jdbc:sqlserver://localhost:1433;DatabaseName=p";
Connection conn=DriverManager.getConnection(url,user,password);
request.setCharacterEncoding("UTF-8");
String name=request.getParameter("name");
String sex=request.getParameter("sex");
session.setAttribute("sex",sex);
session.setAttribute("name",name);
String sql="select * from Student where Ssex=? and Sname=?";
PreparedStatement pstmt=conn.prepareStatement(sql);
pstmt.setString(1,sex);
pstmt.setString(2,name);
ResultSet rs=pstmt.executeQuery();
if(rs.next()){
String id=rs.getString("Sno");
String name2=rs.getString("Sname");
String sex2=rs.getString("Ssex");
int age=rs.getInt("Sage");
String sdept=rs.getString("Sdept");
if(pstmt!=null){pstmt.close();}
if(rs!=null){rs.close();}
if(conn!=null){conn.close();}
%>
<form action="stuupdate3.jsp" method="post">
<table border="0" width="238" height="252">
<tr><td>學號:</td><td><input type="text" name="id" value=<%=id%>></td></tr>
<tr><td>姓名:</td><td><input type="text" name="name2" value=<%=name2%>></td></tr>
<tr><td>性別:</td><td><input type="text" name="sex2" value=<%=sex2%>></td></tr>
<tr><td>年齡:</td><td><input type="text" name="age" value=<%=age%>></td></tr>
<tr><td>專業:</td><td><input type="text" name="sdept" value=<%=sdept%>></td></tr>
<tr align="center">
<td colspan="2">
<input type="submit" value="提交">
<input type="reset" value="取消">
</td>
</tr>
</table>
</form>
<%}
else{%>
沒有找到合適條件的記錄！！<%
if(rs!=null){rs.close();}
if(pstmt!=null){pstmt.close();}
if(conn!=null){conn.close();}
}%>
</body>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>修改後重寫頁面</title>
</head>
<body>
<% Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String url="jdbc:sqlserver://localhost:1433; DatabaseName=p";
String user="sa";
String password="123456";
Connection conn=DriverManager.getConnection(url,user,password);
String sql="update Student set Sno=?,Sname=?,Ssex=?,Sage=?,Sdept=? where Sname=? and Ssex=?";
PreparedStatement pstmt=conn.prepareStatement(sql);
request.setCharacterEncoding("UTF-8");
String id=request.getParameter("id");
String name2=request.getParameter("name2");
String sex2=request.getParameter("sex2");
int age=Integer.parseInt(request.getParameter("age"));
String sdept=request.getParameter("sdept");
String name=(String)session.getAttribute("name");
String sex=(String)session.getAttribute("sex");
pstmt.setString(1,id); pstmt.setString(2,name2);
pstmt.setString(3,sex2); pstmt.setInt(4,age);
pstmt.setString(5,sdept); pstmt.setString(6,name);
pstmt.setString(7,sex);
int n=pstmt.executeUpdate();
if(n>=1){%>重寫資料庫操作成功！<br><%}
else{%>重寫資料庫操作失敗！<br><%}
if(pstmt!=null){pstmt.close();}
if(conn!=null){conn.close();}
%>
</body>
</html>
4.刪除記錄模組
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>條件刪除提交頁面</title>
</head>
<body>
請選擇刪除記錄條件<<hr width="100%" size="3">
<form action="studelete2.jsp" method="post">
姓名：<input type="text" name="name"><br><br>
性別：男<input type="radio" value="男" name="sex">
女<input type="radio" value="女" name="sex"><br><br>
年齡範圍：<br><p>
最小：<input type="text" name="a1"><br>
最大：<input type="text" name="a2">
</p>
<input type="submit" value="提交">
<input type="reset" value="取消">
</form>
</body>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>條件刪除處理頁面</title>
</head>
<body>
<% Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String user="sa";
String password="123456";
String url="jdbc:sqlserver://localhost:1433;DatabaseName=p";
Connection conn=DriverManager.getConnection(url,user,password);
request.setCharacterEncoding("UTF-8");
String name=request.getParameter("name");
String sex=request.getParameter("sex");
String ag1=request.getParameter("a1");
String ag2=request.getParameter("a2");
int a3,a4;
String sql="delete from Student where Sname=? and Ssex=? and Sage>=? and Sage<=?";
PreparedStatement pstmt=conn.prepareStatement(sql);
if(!name.equals("")) pstmt.setString(1,name);
if(sex!=null) pstmt.setString(2,sex);
if(!ag1.equals("")){a3=Integer.parseInt(ag1); pstmt.setInt(3,a3);}
if(!ag2.equals("")){a4=Integer.parseInt(ag2); pstmt.setInt(4,a4);}
int n=pstmt.executeUpdate();
if(n==1){%>資料刪除成功<br><%}
else{%>資料刪除失敗！<br><%}
if(pstmt!=null){pstmt.close();}
if(conn!=null){conn.close();}
%>
</body>
</html>