JSP-Verbindung MySQL-Code-Referenz ~ für persönliche Tests verfügbar

<%@page language="java" contentType="text/html; charset=utf-8" pageEncoding="UTF-8"%>
<%@ page import="java.sql.*" %>
<%
 //此进行连接数据库
String url="jdbc:mysql://127.0.0.1:3306/test"; //test为数据库名称
String dbuser="root"; //数据库账户
String dbpwd="root"; //数据库密码
try 
{
    Class.forName("com.mysql.jdbc.Driver"); //加载驱动 JspStudy
} 
catch (ClassNotFoundException e) 
{ 
    e.printStackTrace();
}  
//取得数据库连接conn JspStudy
Connection conn=DriverManager.getConnection(url, dbuser, dbpwd);;
PreparedStatement ps=null;
ResultSet rs=null; 
String username="";
String pwd="";
String name="";
try 
{ 
    String sql="select id,username,password,name from users";
    ps = conn.prepareStatement(sql);
    rs = ps.executeQuery();
    while(rs.next())
    {
        username=rs.getString(2);
        pwd=rs.getString(3);
        name=rs.getString(4);
        out.println("账户:"+username+"　　　密码："+pwd+"　　　姓名:"+name+"<br>"); 
    }
}
catch (SQLException e) 
{
    e.printStackTrace();
}
finally
{ 
        try 
        {
            if(rs!=null)            
                rs.close();
        } 
        catch (SQLException e) 
        {
            e.printStackTrace();
        }
        finally
        {
                try 
                {
                    if(ps!=null)                    
                        ps.close();
                } 
                catch (SQLException e) 
                { 
                    e.printStackTrace();
                }
                finally
                {
                    try 
                    {
                        if(conn!=null)                    
                            conn.close();
                    } 
                    catch (SQLException e) 
                    { 
                            e.printStackTrace();
                    }
                }
        }
} 
%>