异常启动过滤器 springSecurityFilterChain
当我启动 tomcat 时，我得到了这个。我已将 spring2.5.6.jar 放入我的类路径中。
SEVERE: Exception starting filter springSecurityFilterChain
java.lang.ClassNotFoundException: org.springframework.web.filter.DelegatingFilterProxy
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1386)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1232)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:207)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:302)
at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:78)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3666)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4258)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
我能做些什么？
I am getting this when I start the tomcat. I have placed the spring2.5.6.jar in my classpath.
SEVERE: Exception starting filter springSecurityFilterChain
java.lang.ClassNotFoundException: org.springframework.web.filter.DelegatingFilterProxy
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1386)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1232)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:207)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:302)
at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:78)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3666)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4258)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
What can I do?
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评论（2）
据我所知，在 Spring 2.5.x 中，这个类要么在完整的 spring.jar 中，要么在 spring-web.jar 中。
检查 spring2.5.6.jar 中是否有该类，如果没有，请将 spring-web2.5.6.jar 添加到类路径中。
As far as I can recall, in Spring 2.5.x this class was either in the full spring.jar, or in the spring-web.jar.
Check whether you have the class inside your spring2.5.6.jar, and if not add spring-web2.5.6.jar to your classpath.
这句话非常含糊。 “类路径”只是一个抽象术语，它标识所有本地磁盘文件系统路径的集合，其中 Java 必须在编译时或运行时扫描类和 JAR 文件。您当前和以前的问题以及您对此问题的评论并没有给我留下您正确理解类路径到底是什么的印象。
在这种特殊情况下，您需要确保 JAR 文件放置在运行时类路径（默认情况下）覆盖的路径之一中。 Web 应用程序的
/WEB-INF/lib文件夹就是其中之一。您只需将 JAR 的副本放入该文件夹即可。绝对没有什么需要做的了。即使不在 IDE 中摆弄构建路径属性，这也可能会让事情变得更糟。如有必要，请撤消它。实际上，只需将 JAR 放入 IDE 项目的/WEB-INF/lib文件夹中就足够了。This phrase is very ambiguous. The "classpath" is merely an abstract term which identifies the collection of all local disk file system paths wherein Java has to scan for classes and JAR files during compiletime or runtime. Your current and previous questions and your comments on this question doesn't give me the impression that you properly understand what exactly the classpath is.
In this particular case, you need to ensure that the JAR file is placed in one of those paths which are (by default) covered by the runtime classpath. The webapp's
/WEB-INF/libfolder is one of them. You just have to drop a copy of the JAR in that folder. Absolutely nothing more needs to be done. Even not fiddling with Build Path properties in an IDE, which would possibly make things worse. Undo it if necessary. Just dropping the JAR in/WEB-INF/libfolder of the IDE project is sufficient, really.