[转]Tomcat日志查看

hailai

.今天在调试一web应用，spring+webwork ，mvn 管理，
启动tomcat 报 error:filterStart 错误
造成任何访问都报404错误，而控制台没有任何具体错误信息。
找了好久，在%Tomcat_home%\logs\下 localhost.2010-11-01.log （具体名称因时间和域名不同）发现具体错误
Java代码  
1.严重: Exception starting filter webwork   
2.java.lang.NoClassDefFoundError: freemarker/template/Configuration   
3.    at com.opensymphony.webwork.dispatcher.FilterDispatcher.init(FilterDispatcher.java:130)   
4.    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)   
5.    at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)   
6.    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)   
7.    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)   
8.    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4363)   
9.    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)   
10.    at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)   
11.    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)   
12.    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)   
13.    at org.apache.catalina.core.StandardService.start(StandardService.java:516)   
14.    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)   
15.    at org.apache.catalina.startup.Catalina.start(Catalina.java:578)   
16.    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)   
17.    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)   
18.    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)   
19.    at java.lang.reflect.Method.invoke(Method.java:597)   
20.    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)   
21.    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)   
22.Caused by: java.lang.ClassNotFoundException: freemarker.template.Configuration   
23.    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)   
24.    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)   
25.    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)   
26.    ... 19 more  
严重: Exception starting filter webwork
java.lang.NoClassDefFoundError: freemarker/template/Configuration
at com.opensymphony.webwork.dispatcher.FilterDispatcher.init(FilterDispatcher.java:130)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4363)
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(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.ClassNotFoundException: freemarker.template.Configuration
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 19 more

原因是没有把freemarker的包依赖进来。

在pom.xml中加入相应的包就好了。

总结：

某些错误在%Tomcat_home%\logs\的日志文件可以看到