在Eclipse IDE进行Struts开发时提示错误：java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.FilterDi

时间 2019-11-05

标签 eclipse ide 进行 struts 开发提示错误 java.lang.classnotfoundexception java lang classnotfoundexception org.apache.struts2.dispatcher.filterdi org apache dispatcher filterdi 栏目 Eclipse 繁體版

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If you have...java

included all necessary jars
Configured build path correctly
added them all in deployment assembly
Correctly.

then also you getting "java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.FilterDispatcher" error then you could be doing below things wrong.web

solution:apache

check your struts2-core-x.x.jar version.ui

-->if it is struts2-core-2.5.jar then change your filter class tag value in web.xml tothis

<filter-class>
     org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter
</filter-class>

-->if it is struts2-core-2.1.3.jar then change your filter class tag value in web.xml tospa

<filter-class>
     org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>

FilterDispatcher is deprecated since Struts 2.1.3. If you are working with older versions then user above solution.code

-->if it is struts2-core-2.3.X.jar then change your filter class tag value in web.xml toxml

<filter-class> 
    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>

Reason behind all this is struts 2 controllers are placed in different location in different version of struts2-core jar and some time they are called by different name as you can see in 2.1.3.blog

Thank you!get

须要注意的是：

　　在struts2.1版本以前，所使用的核心过滤器类是 org.apache.struts2.dispatcher.FilterDispatcher，从struts2.1版本以后，已经不推荐使用，而是使用org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter类。可是当struts版本发展到2.5以后的版本时，推荐将类彻底名称中的ng去掉，即便用org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter类。