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I can't connect to MySQL database from The JSP Standard Tag Library

843859Dec 7 2006 — edited Dec 9 2006
Hi All !

I have a problem, please help me anybody !

I don't connect to MySQL database from jsp page using JSTL tag but from servlet all work correctly. I set my path and put �mysql-connector-java-3.1.13-bin.jar� in ENVIRONMENT WinXP(classpath=C:\Java\jdk1.5.0_10\jre\lib\ext\mysql-connector-java-3.1.13-bin.jar) and in War project folder �WEB-INF/lib� and in [TomcatServer]\common\lib.

I have in folder�WEB-INF/lib� following files:
antlr.jar
commons-beanutils.jar
commons-collections.jar
commons-digester.jar
commons-fileupload.jar
commons-logging.jar
commons-validator.jar
jakarta-oro.jar
jsf-api.jar
jsf-impl.jar
jstl.jar
mysql-connector-java-3.1.13-bin.jar
standard.jar
struts.jar

I'm using:
NetBeans 5.5 Build200610171010 (bundled Tomcat 5.5.17)
Ent.Pack 20061020 Visual Wb Pack 061103
OS WinXP SP2
Java 1.5.0_10
MySQL 5.0.18-nt

1:<%@page contentType="text/html"%> 
2:<%@page pageEncoding="UTF-8"%> 
... 
8: <%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> 
9: <%@taglib uri="http://java.sun.com/jstl/sql" prefix="sql"%> 
10: 
11: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
12: "http://www.w3.org/TR/html4/loose.dtd"> 
13: 
14: <sql:setDataSource var="ds" 
15: driver="com.mysql.jdbc.Driver" 
16: url="jdbc:mysql://localhost:3306/test" 
17: user="root" 
18: password="xxxx"/> 
19: 
20: 
21:<sql:query sql="select name, age from People" var="res" 
22: dataSource="${ds}"/> 
I have received report on mistake when entered code at the top:
�/index.jsp [21;0] According to TLD or attribute directive in tag file, attribute dataSource does not accept any expressions�

I used instead of (dataSource="${ds}")->(dataSource="ds") but this did not work.


After build and run I have received

=========================================START=================================
HTTP Status 500

type Exception report:

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception
org.apache.jasper.JasperException: /index.jsp(21,0) According to TLD or attribute directive in tag file, attribute dataSource does not accept any expressions
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)

root cause
org.apache.jasper.JasperException: /index.jsp(21,0) According to TLD or attribute directive in tag file, attribute dataSource does not accept any expressions
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:146)
org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:955)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:710)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Validator.validate(Validator.java:1489)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:166)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.
Apache Tomcat/5.5.17
=======================================END================================


Error: "According to TLD or attribute directive in tag file, attribute dataSource does not accept any expressions" - but according to documentation such parameter possible.

BUT WHEN JOINING With DATABASE FROM SERVLET ALL WORK FINE.

I read this doc - [http://tomcat.apache.org/tomcat-5.5-doc/jndi-datasource-examples-howto.html], this applicable if I Tomcat Admin, but i'am not Admin
I simply user, i.e. I want to place its database on virtual host (Tomcat+(JSP-JSTL)+MySQL).

There is idea how can resolve this problem

Thank you in advance ;)
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Locked on Jan 6 2007
Added on Dec 7 2006
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