jsp+mysql数据库操作常用方法实例总结
本文实例讲述了jsp+mysql数据库操作常用方法。分享给大家供大家参考。具体如下：
1. 查看：
<%@ page contentType="text/html;charset=GB2312" %>
<%@ page import="java.sql.*" %>
<HTML><style type="text/css">
<!--
body {
background-color: #99CCFF;
}
-->
</style>
<BODY>
<font color="#FFFFFF">
<center>
<% Connection con;
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","123456");
Statement sql;
ResultSet rs;
try
{
sql=con.createStatement();
rs=sql.executeQuery("SELECT * FROM student");
out.print("<Table Border style='font-size: 10pt'>");
out.print("<TR><td colspan=5 align=center>考生数据</td></tr>");
out.print("<TR><td colspan=5 align=center><a href='add.jsp' target='_self'>添加考生信息</a></td></tr>");
out.print("<TR>");
out.print("<Td width=50 >"+"姓名");
out.print("<Td width=100 >"+"年龄");
out.print("<Td width=100>"+"出生日期");
out.print("<Td width=100 colspan=2>"+"操作");
out.print("</TR>");
while(rs.next())
{ out.print("<TR>");
out.print("<TD >"+rs.getString(2)+"</TD>");
out.print("<TD >"+rs.getString(3)+"</TD>");
out.print("<TD >"+rs.getString(4)+"</TD>");
String idstr=rs.getString(1);
out.print("<TD><a href='delete.jsp?id="+idstr+"'>删除</a></TD>");
out.print("<TD><a href='update.jsp?id="+idstr+"'>修改</a></TD>");
out.print("</TR>") ;
}
out.print("</Table>");
con.close();
}
catch(SQLException e1)
{
out.print("SQL异常！！！！");
}
%>
</center>
</BODY>
</HTML>登录后复制
2. add 添加：
<%@ page contentType="text/html;charset=gb2312" %>
<HTML><HEAD>
<style type="text/css">
<!--
body {
background-image: url();
background-color: #CCCCFF;
}
.STYLE5 {font-family: "Courier New", Courier, monospace; font-size: 14px; }
.STYLE6 {
font-family: "Courier New", Courier, monospace;
font-size: 24px;
}
-->
</style>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"></HEAD>
<BODY>
<Font size=2>
<p align="center" class="STYLE6">添加考生信息</p>
<CENTER>
<FORM action="insert.jsp" name=form>
<table>
<tr><td height="36"><span class="STYLE5">姓名:</span></td>
<td><Input name="name" type=text size="15" ></td></tr>
<tr>
<td height="36"><span class="STYLE5">年龄:</span></td>
<td><Input name="age" type=text size="15"></td></tr>
<tr>
<td height="36"><span class="STYLE5">出生年月:</span></td>
<td><Input name="birth" type=text size="15"></td></tr>
</table>
<table width="165">
<tr><td width="42" wnameth="42"><Input type=submit name="g" value="添加"></td>
<td width="28" wnameth="50"> </td>
<td width="42" wnameth="50"><Input type="reset" name="h" value="重置"></td>
<td width="33" wnameth="42"> </td>
</tr>
</table>
</Form></CENTER>
</Body></HTML>登录后复制
3. delete 删除：
<%@ page contentType="text/html;charset=gb2312" %>
<%@ page import="java.sql.*" %>
<html>
<head>
<title>删除操作</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"><style type="text/css">
<!--
body {
background-color: #FFCCFF;
}
-->
</style></head>
<body>
<center>
<% Connection con;
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","123456");
Statement stmt;
Statement s;
ResultSet rs;
String id=request.getParameter("id");
try
{
stmt=con.createStatement();
String sql="delete from student where id="+id;
stmt.executeUpdate(sql);
s=con.createStatement();
rs=s.executeQuery("SELECT * FROM student");
out.print("<Table Border style='font-size: 10pt'>");
out.print("<TR><td colspan=5 align=center>考生数据</td></tr>");
out.print("<TR><td colspan=5 align=center><a href='add.jsp' target='_self'>添加考生信息</a></td></tr>");
out.print("<TR>");
out.print("<Td width=50 >"+"姓名");
out.print("<Td width=100 >"+"年龄");
out.print("<Td width=100>"+"出生日期");
out.print("<Td width=100 colspan=2>"+"操作");
out.print("</TR>");
while(rs.next())
{ out.print("<TR>");
out.print("<TD >"+rs.getString(2)+"</TD>");
out.print("<TD >"+rs.getString(3)+"</TD>");
out.print("<TD >"+rs.getString(4)+"</TD>");
String idstr=rs.getString(1);
out.print("<TD >"+idstr+"</TD>");
out.print("<TD><a href='delete.jsp?id="+idstr+"'>删除</a></TD>");
out.print("<TD><a href='update.jsp?id="+idstr+"'>修改</a></TD>");
out.print("</TR>") ;
}
out.print("</Table>");
con.close();
}
catch(SQLException e1)
{
out.print("SQL异常！！！！");
}
%>
</center>
</body>
</html>登录后复制
4. update 示例1：
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style type="text/css">
<!--
body {
background-color: #FFCCFF;
}
-->
</style></head>
<body>
<%String id=request.getParameter("id");
Connection con;
String name=null;
String age=null;
String birth=null;
String id1=null;
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","123456");
Statement sql;
ResultSet rs;
try
{
sql=con.createStatement();
rs=sql.executeQuery("SELECT * FROM student");
while(rs.next())
{
name=rs.getString(2);
age=rs.getString(3);
birth=rs.getString(4);
id1=rs.getString(1);
}
con.close();
}
catch(SQLException e1)
{
out.print("SQL异常！！！！");
}
%>
<center>
<form action="update2.jsp">
<center>
<p> </p>
<p>姓名：
<input name="name" type="text" size="15" value="<%=name%>">
</p>
<p>
年龄：
<input name="age" type="text" size="15" value="<%=age%>">
</p>
<p>出生日期：
<input name="birth" type="text" size="15" value="<%=birth%>">
<input name="id1" type="hidden" value="<%=id1%>" />
</p>
<p><input name="g" type="submit" value="修改"> <input name="h" type="reset" value="重置"></p>
</form>
</center>
</body>
</html>登录后复制
5. update 示例2：
<%@ page contentType="text/html;charset=gb2312" %>
<%@ page import="java.sql.*" %>
<%
String name=request.getParameter("name");
String age=request.getParameter("age");
String birth=request.getParameter("birth");
String id1=request.getParameter("id1");
System.out.println(id1);
Connection con=null;
try
{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","123456");
Statement sql;
sql=con.createStatement();
String sql2="update student set name='"+name+"',age='"+age+"',birth='"+birth+"' where id="+id1;
System.out.print(sql2);
int s=sql.executeUpdate(sql2);
}
catch(Exception e){
System.out.println(e);
}
%>
恭喜你，修改成功！<br />
<a href="chakan.jsp">查看</a>登录后复制
6. insert 插入
<%@ page contentType="text/html;charset=gb2312" %>
<%@ page import="java.sql.*" %>
<%
String name=request.getParameter("name");
String age=request.getParameter("age");
String birth=request.getParameter("birth");
Connection con=null;
try
{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","123456");
Statement sql;
sql=con.createStatement();
String sql2="insert into student(name,age,birth) values('"+name+"','"+age+"','"+birth+"')";
System.out.print(sql2);
int s=sql.executeUpdate(sql2);
}
catch(Exception e){
System.out.println(e);
}
%>
恭喜你，添加成功！<br />
<a href="chakan.jsp">查看</a>登录后复制
7. 创建数据库
/* MySQL Data Transfer Source Host: localhost Source Database: student Target Host: localhost Target Database: student Date: 2009-3-27 13:24:01 */ SET FOREIGN_KEY_CHECKS=0; create database student; use student; -- ---------------------------- -- Table structure for student -- ---------------------------- CREATE TABLE `student` ( `id` int(11) NOT NULL auto_increment, `name` varchar(255) default NULL, `age` varchar(255) default NULL, `birth` varchar(255) default NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=gbk;
登录后复制
希望本文所述对大家的JSP程序设计有所帮助。
更多jsp+mysql数据库操作常用方法实例总结相关文章请关注PHP中文网！
本站声明
本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系admin@php.cn
热AI工具
Undresser.AI Undress
人工智能驱动的应用程序，用于创建逼真的裸体照片
AI Clothes Remover
用于从照片中去除衣服的在线人工智能工具。
Undress AI Tool
免费脱衣服图片
Clothoff.io
AI脱衣机
Video Face Swap
使用我们完全免费的人工智能换脸工具轻松在任何视频中换脸！
热门文章
刺客信条阴影：贝壳谜语解决方案
3 周前
By DDD
Windows 11 KB5054979中的新功能以及如何解决更新问题
3 周前
By DDD
在哪里可以找到原子中的起重机控制钥匙卡
3 周前
By DDD
<🎜>：死铁路 - 如何完成所有挑战
4 周前
By DDD
Atomfall指南：项目位置，任务指南和技巧
1 个月前
By DDD
热工具
记事本++7.3.1
好用且免费的代码编辑器
SublimeText3汉化版
中文版，非常好用
禅工作室 13.0.1
功能强大的PHP集成开发环境
Dreamweaver CS6
视觉化网页开发工具
SublimeText3 Mac版
神级代码编辑软件(SublimeText3)
