服務器上部署Struts2的web項目報struts-default.xml:131:154的解決方法

背景:java

用學生特價買了阿里雲的服務器一年,爲了練手,開始把畢業設計項目部署到該服務器上去。web

項目使用的技術:Struts2apache

服務器上用tomcat啓動該項目。tomcat

 

問題:服務器

在樓主本地啓動tomcat成功,tomcat能成功訪問,項目地址也能成功訪問。app

在服務器上啓動tomcat成功,tomcat能成功訪問,可是項目地址訪問報錯。因而查看服務器上tomcat目錄下/logs/catalina.out,發現報錯以下:webapp

 1 ERROR Dispatcher Dispatcher initialization failed
 2  Unable to load configuration. - bean - jar:file:/root/tomcat123/apache-tomcat-8.0.15/webapps/study/WEB-INF/lib/struts2-core-2.5.20.jar!/struts-default.xml:131:154
 3     at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
 4     at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:957)
 5     at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:463)
 6     at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:496)
 7     at org.apache.struts2.dispatcher.InitOperations.initDispatcher(InitOperations.java:73)
 8     at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:61)
 9     at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)
10     at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
11     at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
12     at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4615)
13     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5222)
14     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
15     at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
16     at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
17     at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714)
18     at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:917)
19     at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1701)
20     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
21     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
22     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
23     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
24     at java.lang.Thread.run(Thread.java:748)
25 Caused by: Unable to load bean: type:com.opensymphony.xwork2.TextProviderFactory class:com.opensymphony.xwork2.StrutsTextProviderFactory - bean - jar:file:/root/tomcat123/apache-tomcat-8.0.15/webapps/study/WEB-INF/lib/struts2-core-2.5.20.jar!/struts-default.xml:131:154
26     at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:245)
27     at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:98)
28     at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:234)
29     at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
30     ... 21 more
31 Caused by: java.lang.IncompatibleClassChangeError: Implementing class
32     at java.lang.ClassLoader.defineClass1(Native Method)
33     at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
34     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
35     at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2452)
36     at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:854)
37     at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1264)
38     at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1147)
39     at com.opensymphony.xwork2.util.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:144)
40     at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:216)
41     ... 24 more

 

網上處處搜索"Dispatcher initialization failed",然而沒有解決,又搜索"Unable to load configuration",仍是沒有解決。
因而想着本身再認真看一遍錯誤日誌,感受關鍵點在於"struts-default.xml:131:154"
趕忙打開該文件,截圖以下:ide

而後又網上找資料,有人說是包重複的問題,我只能本身檢查了,第131行,class="com.opensymphony.xwork2.StrutsTextProviderFactory",因而趕忙查看我引入的包中該class是否存在,而後發現問題:Struts2-core中有這個class,xwork-core中也有該class阿里雲

查詢了一下,Struts2-core是基於xwork-core開發的。spa

 

個人解決方案:

刪除項目中引入的的xwork-core(能夠在刪除前備份一下,萬一不行呢)

重啓tomcat後,項目能正常訪問。

 

ps:至於本地啓動爲何沒報錯,我也不知,,,估計是環境的問題了

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