[color=#FF0000]这是报出的错误：
]
//源代码在下面
HTTP Status 500 – An exception occurred processing JSP page /SQL.jsp at line 22
type Exception report
message An exception occurred processing JSP page /SQL.jsp at line 22
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /SQL.jsp at line 22
19: </head>
20:
21: <body>
22: <sql:setDataSource var=”snapshot” driver=”com.mysql.jdbc.driver”
23: url=”jdbc:mysql://localhost/TEST”
24: user=”user_id” password=”mypassword”/>
25: </body>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
javax.servlet.ServletException: javax.servlet.jsp.JspTagException: In <driver>, invalid driver class name: “java.lang.ClassNotFoundException: com.mysql.jdbc.driver”
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:901)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:834)
org.apache.jsp.SQL_jsp._jspService(SQL_jsp.java:118)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
java.lang.ClassNotFoundException: com.mysql.jdbc.driver
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1293)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1145)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:270)
org.apache.taglibs.standard.tag.common.sql.DataSourceWrapper.setDriverClassName(DataSourceWrapper.java:55)
org.apache.taglibs.standard.tag.common.sql.SetDataSourceTagSupport.doStartTag(SetDataSourceTagSupport.java:111)
org.apache.jsp.SQL_jsp._jspx_meth_sql_005fsetDataSource_005f0(SQL_jsp.java:144)
org.apache.jsp.SQL_jsp._jspService(SQL_jsp.java:102)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.14 logs.
SQL.jsp源码如下：
<%@ page language=”java” import=”java.util.*” pageEncoding=”ISO-8859-1″%>
<%@ taglib uri=”http://java.sun.com/jsp/jstl/sql” prefix=”sql” %>
<%@ taglib uri=”http://java.sun.com/jsp/jstl/core” prefix=”c” %>
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”>
<html>
<head>
<title>My JSP “”SQL.jsp”” starting page</title>
<meta http-equiv=”pragma” content=”no-cache”>
<meta http-equiv=”cache-control” content=”no-cache”>
<meta http-equiv=”expires” content=”0″>
<meta http-equiv=”keywords” content=”keyword1,keyword2,keyword3″>
<meta http-equiv=”description” content=”This is my page”>
<!–
<link rel=”stylesheet” type=”text/css” href=”styles.css”>
–>
</head>
<body>
<sql:setDataSource var=”snapshot” driver=”com.mysql.jdbc.driver”
url=”jdbc:mysql://localhost/TEST”
user=”user_id” password=”mypassword”/>
</body>
</html>
