jsp使用传入参数作为查库参数

<%@ page contentType="text/html;charset=gb2312"%> 
<%@ page import="java.sql.*"%> 

<%
Class.forName
("org.gjt.mm.mysql.Driver").newInstance(); 
String url ="jdbc:mysql://localhost/com?user=root&password=nafio&useUnicode=true&characterEncoding=UTF-8"; 
Connection conn= DriverManager.getConnection(url); 
Statement stmt=conn.createStatement
(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE); 
%>

<%
String nameP = (String)request.getParameter("name");
String passP = (String)request.getParameter("pass");
%>

<html> 
<head> 
<title> Title </title> 
</head> 
	
<body>
	<%
		String num = "";
		String sql = "select * from gua where name=""+nameP+""";
		ResultSet rs=stmt.executeQuery(sql);
		if(rs.next())num=rs.getString(4);
		rs.close();
	%>
	测试:<%=sql %>
	用户名:<%=nameP %>
	密码:	<%=passP %>
	查询结果:<%=num %>
</body>
</html>

原文地址:https://www.cnblogs.com/nafio/p/9137732.html