使用IBM的Websphere服务器在rad中创建j2ee应用程序时出现错误
Caused by: org.xml.sax.SAXParseException: cvc-complex-type.3.1: Value '2.0' of attribute 'version' of element 'persistence' is not valid with respect to the corresponding attribute use. Attribute 'version' has a fixed value of '1.0'.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.reportSchemaError(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.processOneAttribute(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.processAttributes(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source)
at org.apache.xerces.jaxp.validation.ValidatorHandlerImpl.startElement(Unknown Source)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.ValidatingUnmarshaller.startElement(ValidatingUnmarshaller.java:85)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.SAXConnector.startElement(SAXConnector.java:113)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:202)
编辑： 自动生成的persistence.xml如下所示：
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="PLHService">
<class>plh.jpa.entity.User</class>
</persistence-unit>
</persistence>
我尝试将连接参数添加到persistence.xml。它没有任何区别
我在http://forum.springsource.org/showthread.php?89055-jpa-2-0-persistence-xml-does-not-validate检查了一篇文章，但我没有使用hibernate
构建路径是rad和websphere 7.0中的默认设置。
答案 0 :(得分：2)
构建路径是rad和websphere 7.0中的默认设置。
默认情况下，Websphere 7.0使用OpenJPA 1.0的包装版本。如果要修复此问题，请在persistence.xml文件中使用1.0，或在RAD和WAS中使用switch the persistence provider，或者也可以使用apply the JPA2.0 feature pack。
答案 1 :(得分：2)
WebSphere 7.0是否支持JPA 2.0。
答案是不!! 。正如Terrell建议你应该探索使用JPA 2.0 Feature Pack，在这种情况下，你应该能够使用JPA 2.0。
您还应该看一下这篇文章
websphere 7 and (application based) open-jpa 2
我还建议您查看wsjpaversion以查看您的设置中对JPA的支持。
希望这些能为你提供好的指示。