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MyEclipse------如何查询MySQL数据库里面表的信息

2016-03-24 20:07 405 查看

testExecuteQuary.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<%@page import="java.sql.*" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'testExecuteQuery.jsp' starting page</title>
</head>

<body>
<%
//student为数据库的名字
String url="jdbc:mysql://localhost:3306/student?useSSL=true";
String useName="root";
String password="2277092";
String sql=null;
Connection conn=null;
Statement stmt=null;

//加载驱动类
try{
Class.forName("com.mysql.jdbc.Driver");
out.print("加载驱动类成功");
}
catch(ClassNotFoundException e){
out.print("加载驱动类时出现异常");
}

try{
conn=DriverManager.getConnection(url,useName,password);

stmt=conn.createStatement();
sql="select * from info";//info为表名

ResultSet rs=stmt.executeQuery(sql);
%>

<center>
<table border="1" width="270" cellspacing="0" cellpadding="0">
<tr>
<td width=50 align="center" valign="middle">学号</td>
<td width="80" align="center">姓名</td>
<td width=140 align="center">电话</td>
</tr>

<%
while(rs.next()){
int id=rs.getInt(1);
String name=rs.getString(2);
String phone=rs.getString(3);
%>

<tr>
<td height="40" align="center" valign="middle"><%=id %></td>
<td align="center" valign="middle"><%=name %></td>
<td align="center" valign="middle"><%=phone %></td>
</tr>

<%
}
rs.close();
stmt.close();
%>
</table>
</center>

<%
}
catch(SQLException e){
out.print("出现SQLException异常");
}
finally{
try{
if(conn!=null){
conn.close();
}
}
catch(SQLException e){
out.print("关闭数据库连接时出现异常");
}
}
%>
</body>
</html>

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