JSP怎么加载mysql驱动？ 10
<%@pagelanguage="java"import="java.util.*"pageEncoding="UTF-8"%><%@taglibprefix="sql"...
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<head>
<title>My JSP 'SetDataSourceDemo.jsp' starting page</title>
</head>
<body>
<sql:setDataSource url="jdbc:mysql://localhost/Java_Jstl" driver="com.mysql.jdbc.Driver" user="root" password=""/>
</body>
</html>
mysql用户名和密码都正确了，还有我已经把驱动包放到web-inf的lib目录下，不行啊。然后我又放一份到tomacat的lib目录下，但还是不行。
抛出的异常貌似不是数据库连接异常，就直接是操作错误。。 展开
<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<head>
<title>My JSP 'SetDataSourceDemo.jsp' starting page</title>
</head>
<body>
<sql:setDataSource url="jdbc:mysql://localhost/Java_Jstl" driver="com.mysql.jdbc.Driver" user="root" password=""/>
</body>
</html>
mysql用户名和密码都正确了，还有我已经把驱动包放到web-inf的lib目录下，不行啊。然后我又放一份到tomacat的lib目录下，但还是不行。
抛出的异常貌似不是数据库连接异常，就直接是操作错误。。 展开
3个回答
展开全部
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....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h 0....m,,h ....m,,h
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<%
request.setCharacterEncoding("gb2312");
String username=request.getParameter("username");
String password=request.getParameter("password");
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con=DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/jsp?user=root&password=1234");
Statement s=con.createStatement();
String sql="select username,password from test where username='"+username+"'";
ResultSet r=s.executeQuery(sql);
while(r.next()){
request.setCharacterEncoding("gb2312");
String username=request.getParameter("username");
String password=request.getParameter("password");
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con=DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/jsp?user=root&password=1234");
Statement s=con.createStatement();
String sql="select username,password from test where username='"+username+"'";
ResultSet r=s.executeQuery(sql);
while(r.next()){
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放在jdk的 lib下试试，或者将classpath=.;设在系统环境变量里试下。
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