4：修改web.xml,内容如下：

<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd";> <web-app> <display-name>OSWorkflow Example App</display-name> <welcome-file-list> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <resource-ref> <description>OSWorkflow Example App</description> <res-ref-name>jdbc/DefaultDS</res-ref-name> <res-ref-type>javax.sql.DataSource</res-ref-type> <res-auth>Container</res-auth> </resource-ref> </web-app>

osworkflow的mysql数据库配置(3)

5：将jboss-j2ee.jar拷贝到tomcat_home\common\endorsed目录下

6：将驱动程序拷贝到tomcat_home\common\lib目录下

7:启动tomcat但是报以下错误

严重: Parse error in application web.xml

java.lang.NullPointerException

at org.apache.commons.digester.Digester.createSAXException(Digester.java

:2540)

at org.apache.commons.digester.Digester.createSAXException(Digester.java

:2566)

at org.apache.commons.digester.Digester.endElement(Digester.java:1061)

at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source

)

at org.apache.xerces.impl.dtd.XMLDTDValidator.endNamespaceScope(Unknown

Source)

at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(Unknown S

ource)

at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown Source)

at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(

Unknown Source)

at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContent

Dispatcher.dispatch(Unknown Source)

at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Un

known Source)

at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)

at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)

at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)

at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)

at org.apache.commons.digester.Digester.parse(Digester.java:1548)

at org.apache.catalina.startup.ContextConfig.applicationConfig(ContextCo

nfig.java:263)

at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:62

osworkflow的mysql数据库配置

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