Java 添加Struts2过滤器会导致空白页
我正在尝试启动并运行一个基本的Struts2应用程序(使用tomcat,使用maven构建)。Tomcat和Maven都工作正常;在我将一些Struts过滤器添加到web.xml(位于src/main/webapp/web-INF)之前,页面一直正常运行。下面是my web.xml的代码:Java 添加Struts2过滤器会导致空白页,java,jsp,maven,tomcat,struts2,Java,Jsp,Maven,Tomcat,Struts2,我正在尝试启动并运行一个基本的Struts2应用程序(使用tomcat,使用maven构建)。Tomcat和Maven都工作正常;在我将一些Struts过滤器添加到web.xml(位于src/main/webapp/web-INF)之前,页面一直正常运行。下面是my web.xml的代码: <?xml version="1.0" encoding="UTF-8" ?> <web-app> <display-name>app</display-n
<?xml version="1.0" encoding="UTF-8" ?>
<web-app>
<display-name>app</display-name>
<description>tagline</description>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
我刚刚注意到catalina.log中存在的另一个问题,它只在启动tomcat时显示:
13-Jan-2014 20:19:57.465 SEVERE [main] org.apache.catalina.core.AprLifecycleListener.init An incompatible version 1.1.27 of the APR based Apache Tomcat Native library is installed, while Tomcat requires version 1.1.29
真正奇怪的是,我的ApacheTomcat ver/bin中的tomcat-native.tar.gz版本是1.1.29
此外,我的localhost.log还有一大堆错误:
13-Jan-2014 20:20:04.780 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.filterStart Exception starting filter struts2
Unable to load configuration. - bean - jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar!/struts-plugin.xml:31:133
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:501)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4646)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5274)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:699)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1763)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: Unable to load configuration. - bean - jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar!/struts-plugin.xml:31:133
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:445)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:489)
... 18 more
Caused by: Unable to load bean: type:org.apache.struts2.components.UrlRenderer class:org.apache.struts2.components.PortletUrlRenderer - bean - jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar!/struts-plugin.xml:31:133
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:245)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:234)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
... 20 more
Caused by: java.lang.NoClassDefFoundError: javax/portlet/PortletMode
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2493)
at java.lang.Class.getDeclaredConstructors(Class.java:1901)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:235)
... 23 more
Caused by: java.lang.ClassNotFoundException: javax.portlet.PortletMode
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1286)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1128)
... 27 more
13-Jan-2014 20:20:04.780严重[localhost-startStop-1]org.apache.catalina.core.StandardContext.filterStart异常启动筛选器struts2
无法加载配置。-bean-jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar/struts plugin.xml:31:133
位于org.apache.struts2.dispatcher.dispatcher.init(dispatcher.java:501)
位于org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
位于org.apache.struts2.dispatcher.ng.filter.strutspreadexecutefilter.init(strutspreadexecutefilter.java:57)
位于org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
位于org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
位于org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:107)
位于org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4646)
位于org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5274)
位于org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
位于org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
位于org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702)
位于org.apache.catalina.core.StandardHost.addChild(StandardHost.java:699)
位于org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977)
位于org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1763)
位于java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
在java.util.concurrent.FutureTask.run(FutureTask.java:262)处
位于java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
位于java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
运行(Thread.java:744)
原因:无法加载配置。-bean-jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar/struts plugin.xml:31:133
在com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)上
在org.apache.struts2.dispatcher.dispatcher.init_预配置(dispatcher.java:445)中
位于org.apache.struts2.dispatcher.dispatcher.init(dispatcher.java:489)
... 还有18个
原因:无法加载bean:type:org.apache.struts2.components.urrenderer类:org.apache.struts2.components.portleturrenderer-bean-jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar/struts plugin.xml:31:133
在com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:245)上
位于org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)
在com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:234)上
位于com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
... 20多
原因:java.lang.NoClassDefFoundError:javax/portlet/PortletMode
位于java.lang.Class.getDeclaredConstructors0(本机方法)
位于java.lang.Class.privateGetDeclaredConstructors(Class.java:2493)
位于java.lang.Class.getDeclaredConstructors(Class.java:1901)
在com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:235)上
... 23多
原因:java.lang.ClassNotFoundException:javax.portlet.PortletMode
位于org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1286)
位于org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1128)
... 还有27个
对我来说,这看起来像是一个依赖性问题,但是struts2-portlet-plugin-2.3.16.java存在于该位置。有人知道如何解决这个问题吗
编辑:我还添加了struts2 portlet插件作为maven依赖项,希望它能解决这个问题。没有用,同样的错误仍在出现
此外,以下是请求的pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.company.webapp</groupId>
<artifactId>webapp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>webapp</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<finalName>app</finalName>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>2.3.16</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-portlet-plugin</artifactId>
<version>2.3.16</version>
</dependency>
</dependencies>
</project>
4.0.0
com.company.webapp
网络应用
0.0.1-快照
战争
网络应用
http://maven.apache.org
UTF-8
应用程序
朱尼特
朱尼特
4.11
测试
org.apache.struts
struts2型芯
2.3.16
log4j
log4j
1.2.17
org.apache.struts
struts2 portlet插件
2.3.16
在经历了很多头痛和周旋之后,我似乎已经解决了这个问题。显然,在使用maven构建时,我不需要将.jar从分布式struts ver/lib复制到我的WEB-INF/lib文件夹中。它总是很简单的,嗯?请显示完整的堆栈跟踪。使用struts2所需的唯一依赖项是struts2 core(org.apache.struts | struts2 core | 2.3.16)。您还可以使用tomcat maven插件进行本地测试(org.apache.tomcat.maven | tomcat6 maven插件| 2.2),然后在您的项目位置上使用mvn tomcat:run。否则,您的web.xml或struts.xml似乎没有任何问题,并且根据您发布的内容,它们位于正确的位置(如果src/m上有index.jsp)
13-Jan-2014 20:20:04.780 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.filterStart Exception starting filter struts2
Unable to load configuration. - bean - jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar!/struts-plugin.xml:31:133
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:501)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4646)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5274)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:699)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1763)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: Unable to load configuration. - bean - jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar!/struts-plugin.xml:31:133
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:445)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:489)
... 18 more
Caused by: Unable to load bean: type:org.apache.struts2.components.UrlRenderer class:org.apache.struts2.components.PortletUrlRenderer - bean - jar:file:/usr/local/apache-tomcat/apache-tomcat-8.0.0-RC10/webapps/symIOsis/WEB-INF/lib/struts2-portlet-plugin-2.3.16.jar!/struts-plugin.xml:31:133
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:245)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:234)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
... 20 more
Caused by: java.lang.NoClassDefFoundError: javax/portlet/PortletMode
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2493)
at java.lang.Class.getDeclaredConstructors(Class.java:1901)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:235)
... 23 more
Caused by: java.lang.ClassNotFoundException: javax.portlet.PortletMode
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1286)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1128)
... 27 more
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.company.webapp</groupId>
<artifactId>webapp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>webapp</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<finalName>app</finalName>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>2.3.16</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-portlet-plugin</artifactId>
<version>2.3.16</version>
</dependency>
</dependencies>
</project>