问题1(org.apache.commons.lang.ClassUtils.getClass)

解决办法

在WEB-INF文件夹下，加上weblogic.xml，让WebLogic 10先引用WEB-INF下面的jar，内容如下：

<? xml version = "1.0" encoding = "UTF-8" ?>

< weblogic-web-app xmlns:wls = "http://xmlns.oracle.com/weblogic/weblogic-web-app" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation =

"http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd http://xmlns.oracle.com/weblogic/weblogic-web-app http://xmlns.oracle.com/weblogic/weblogic-web-app/1.0/weblogic-web-app.xsd"

>

< weblogic-version >10.3.1</ weblogic-version >

< context-root >xxxx_for_weblogic</ context-root >

< container-descriptor >

< prefer-web-inf-classes >true</ prefer-web-inf-classes >

< show-archived-real-path-enabled >true</ show-archived-real-path-enabled >

</ container-descriptor >

</ weblogic-web-app >

问题2(java.lang.ClassCastException: **weblogic.xml.jaxp.RegistryDocumentBuilderFactory)

解决办法

删掉war包中的xml-apis就可以了

问题原因说明

因为我们刚在weblogic.xml里设置了优先加载WEB-INF中的jar，那么要删掉冲突的jar。

The weblogic.xml Web application deployment descriptor contains a <prefer-web-inf-classes> element (a sub-element of the <container-descriptor> element). By default, this element is set to false. **Setting this element to true subverts the classloader delegation model so that class definitions from the Web application are loaded in preference to class definitions in higher-level classloaders.** This allows a Web application to use its own version of a third-party class, which might also be part of WebLogic Server.

**When this setting is enabled in weblogic.xml, the following jars has to be removed from portal WEB-INF/lib** (jars with javax.xml package):

jaxrpc.jar

stax.jar

wstx.jar

xml-apis.jar

问题三(java.lang.NoSuchMethodError:javax.persistence.OneToMany.orphanRemoval())

解决办法

把war中的hibernate-jpa-2.0-api-1.0.0.Final.jar删掉。

问题原因说明

war和Weblogic 10本身都有jpa的jar包，冲突。

问题4(**java.lang.NoClassDefFoundError: javax/persistence/Cacheable**)

org.springframework.beans.factory.BeanCreationException: Error creating bean with name  'sessionFactory'  defined in ServletContext resource [/WEB-INF/dorado-home/app-context.xml]: Invocation of init method failed; nested exception is **java.lang.NoClassDefFoundError: javax/persistence/Cacheable**
         at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java: 1420 )
         at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java: 519 )

解决办法

将hibernate-jpa-2.0-api-1.0.0.Final.jar放到%WEBLOGIC_HOME%\jdk160_11\jre\lib\ext中，让它在Weblogic 10的JPA jar之前引用。

如果使用的是jrockit，则应该将这个jar放在%WEBLOGIC_HOME%\jrockit_160_05\jre\lib\ext中

问题原因说明

Weblogic 10.3里的jpa是1.0的（%WEBLOGIC_HOME%\modules\javax.persistence_1.0.0.0_1-0-2.jar），而我们使用的是2.0版本的。而JPA 1.0好像不支持缓存，所以，单纯的删除hibernate-jpa-2.0-api-1.0.0.Final.jar是不行的。

问题5(**Cannot resolve reference to bean 'dorado.velocityHelper' while setting bean property 'velocityHelper';**)

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name  'com.bstek.dorado.view.resolver.HtmlViewResolver#199d183'  defined in  class  path resource [com/bstek/dorado/view/servlet-context.xml]: **Cannot resolve reference to bean  'dorado.velocityHelper'  while  setting bean property  'velocityHelper' ;** nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name  'dorado.velocityHelper' : FactoryBean threw exception on object creation; nested exception is **java.lang.NullPointerException**
         at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java: 328 )
         at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java: 106 )

解决办法

把velocity-tools-2.0.jar删掉

问题6(Bad date header)

java.lang.IllegalArgumentException: Bad date header: 'Mon, 04 Jul 2011 06:33:24 GMT' at weblogic.servlet.internal.ServletRequestImpl.getDateHeader(ServletRequestImpl.java: 983 )

解决办法

安装WebLogic 10gR3版本的CR380042_103GA.jar补丁，具体办法：

首先将CR380042_103GA.jar（点击下载）拷贝到WebLogic的domain的lib目录下；

然后修改setDomainEnv.sh/setDomainEnv.bat（前者对应linux系统，后者为windows系统），在最后设置的CLASSPATH中增加，如下：

CLASSPATH=.../mydomain/lib/CR380042_103GA.jar;${CLASSPATH}

相关说明文档参考：https://forums.oracle.com/forums/thread.jspa?threadID=705412

问题7(javassist.util.proxy.ProxyFactory.setUseCache(Z))

org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoSuchMethodError: javassist.util.proxy.ProxyFactory.setUseCache(Z)V
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java: 839 )
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java: 719 )
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java: 644 )

xwork-core-2.1.6.jar导致的

参考ISSUE: http://www.bsdn.org/projects/dorado7/issue/dorado7-1157

问题8：(weblogic.application.ModuleException)

weblogic.application.ModuleException:

com.ctc.wstx.stax.WstxInputFactory cannot be cast to javax.xml.stream.XMLInputFactory

这是因为包冲突了，如果项目的lib里有wstx-asl-xxx.jar，部署之前先从war包里删除这些jar包，再部署就可以了。
注意还要在WEB-INF目录下添加一个weblogic.xml，设置属性优先使用当前应用的包文件。配置内容参考问题1