我在运行项目时收到此错误，最终结果为 404。该项目是在Spring框架上进行的。
我读了很多帖子，发现要么是混合了罐子，要么是多余的罐子。接下来我尝试整理我的罐子。以下列表是我的构建路径中的内容：
antlr-2.7.6.jar
asm.jar
asm-attrs.jar
cglib-2.2.jar
commons-beanutils-1.7.0.jar
commons-collections-3.1.jar
commons-digester-1.8.jar
commons-email-1.0.jar
commons-fileupload-1.1.1.jar
commons-io-1.2.jar
commons-lang-2.5.jar
commons-logging-1.1.1.jar
displaytag-1.0-b3.jar
dom4j-1.6.1.jar
ehcache-1.1.jar
hibernate3.jar
hibernate-jpa-2.0-api-1.0.0.Final.jar
hibernate-validator-4.0.2.GA.jar
hsqldb.jar
itext-2.1.3.jar
javassist-3.12.0.GA.jar
jdom.jar
jstl-1.2.jar
jta-1.1.jar
log4j-1.2.14.jar
msbase.jar
mssqlserver4v65.jar
msutil.jar
mysql.jar
mysql-connector-java-5.1.15-bin.jar
ojdbc14.jar
persistence-api-1.0.jar
poi-3.0-alpha2.jar
servlet-2.3.jar
slf4j-api-1.6.6.jar
slf4j-log4j12-1.5.6.jar
slf4j-simple-1.6.6.jar
spring-asm-3.0.3.RELEASE.jar
spring-beans-3.0.3.RELEASE.jar
spring-context-3.0.3.RELEASE.jar
spring-core-3.0.3.RELEASE.jar
spring-expression-3.0.3.RELEASE.jar
spring-hibernate3-2.0.8.jar
spring-web-3.0.3.RELEASE.jar
spring-webmvc-3.0.3.RELEASE.jar
sqljdbc4.jar
standard.jar
tree.jar
validation-api-1.0.0.GA.jar
wloracle.jar
wlsqlserver.jar
这是堆栈跟踪
SEVERE: Error loading WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@ca2dce
org.springframework.web.servlet.DispatcherServlet
java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1360)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1206)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1083)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:981)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4364)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
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:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:51)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:116)
at org.apache.jasper.compiler.TagLibraryInfoImpl.generateTLDLocation(TagLibraryInfoImpl.java:315)
at org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:148)
at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:420)
at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:483)
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1433)
at org.apache.jasper.compiler.Parser.parse(Parser.java:133)
at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:216)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:103)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:153)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:294)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:281)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
我删除了很多jar，我认为这些都是重复的。
我的问题是所有这些罐子是否足够或者是否有重复？
请帮忙，这个 404 快要死了...
你那里有很多重复的罐子：
antlr
jta
mysql-connector
javassist
mssqlserver
在继续之前，我会确保您只有其中一个版本，找出您需要的版本并包含该版本。
如果您不确定如何执行此操作，请告诉我们您如何导入依赖项。
查看您所看到的堆栈跟踪以及导致错误的简化 Spring 上下文也会很有帮助。
如果你看这个问题：JasperException：绝对 uri：无法解析 http://java.sun.com/jsp/jstl/core https://stackoverflow.com/questions/2427486/org-apache-jasper-jasperexception-the-absolute-uri-http-java-sun-com-jsp-jst
您需要确保您拥有正确版本的 JSTL，也许一旦删除重复的 JSTL，它就可以修复该错误。
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