在开发过程中，给
com.thunisoft.fy.business.sp.SelectListUtils 新增加了一个public static方法 getTestSelectList()。在页面的处理的logic类里面使用的时候代码提示都可以提示出来，调用方法也没有报编译期错误。刷新界面后，后台运行到刚才调用的地方就报如下错误：
2008
-
04
-
21
12
:
30
:
27
,
032
[com.thunisoft.summer.web.action.BaseAction]
-
[ERROR] runtime exception
java.lang.NoSuchMethodError: com.thunisoft.fy.business.sp.SelectListUtils.getTestSelectList()Lcom
/
thunisoft
/
fy
/
support
/
selectObj
/
SelectList;
at com.thunisoft.fy.spxt.pub.ajxq.AjxqLogic.displayZxAjxq_right(AjxqLogic.java:
736
)
at com.thunisoft.fy.spxt.pub.ajxq.AjxqLogic.displayAjxq_right(AjxqLogic.java:
116
)
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:
324
)
at com.thunisoft.summer.web.action.MemoryAction.execute(MemoryAction.java:
102
)
at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:
106
)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:
430
)
at com.thunisoft.fy.web.struts.SummerRequestProcessor.process(SummerRequestProcessor.java:
134
)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:
1196
)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:
414
)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:
689
)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:
802
)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
237
)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157
)
at com.thunisoft.summer.web.filter.UserAASFilter.doFilter(UserAASFilter.java:
111
)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
186
)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157
)
at org.ajaxanywhere.AAFilter.doFilter(AAFilter.java:
46
)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
186
)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157
)
at com.thunisoft.summer.web.filter.CharsetFilter.doFilter(CharsetFilter.java:
48
)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
186
)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157
)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
214
)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
104
)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
520
)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:
198
)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
152
)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
104
)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
520
)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
137
)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
104
)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:
118
)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
102
)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
520
)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:
109
)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
104
)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
520
)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:
929
)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:
160
)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
799
)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:
705
)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:
577
)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:
683
)
at java.lang.Thread.run(Thread.java:
534
)
咨询同事，得到的是“增加静态方法”要重启tomcat服务。我重启了tomcat果然就没有问题了：）
有点不太明白，为什么增加静态方法就要重启tomcat服务？这样在开发过程中如果经常增加static方法岂不是每次都要重启，然后就会很浪费时间了。另外，为什么如果我只是修改了原来已经存在的static方法的实现，则可以正常调试。
2008
-
04
-
21
12
:
30
:
27
,
032
[com.thunisoft.summer.web.action.BaseAction]
-
[ERROR] runtime exceptionjava.lang.NoSuchMethodError: com.thunisoft.fy.business.sp.SelectListUtils.getTestSelectList()Lcom
/
thunisoft
/
fy
/
support
/
selectObj
/
SelectList; at com.thunisoft.fy.spxt.pub.ajxq.AjxqLogic.displayZxAjxq_right(AjxqLogic.java:
736
) at com.thunisoft.fy.spxt.pub.ajxq.AjxqLogic.displayAjxq_right(AjxqLogic.java:
116
) 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:
324
) at com.thunisoft.summer.web.action.MemoryAction.execute(MemoryAction.java:
102
) at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:
106
) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:
430
) at com.thunisoft.fy.web.struts.SummerRequestProcessor.process(SummerRequestProcessor.java:
134
) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:
1196
) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:
414
) at javax.servlet.http.HttpServlet.service(HttpServlet.java:
689
) at javax.servlet.http.HttpServlet.service(HttpServlet.java:
802
) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
237
) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157
) at com.thunisoft.summer.web.filter.UserAASFilter.doFilter(UserAASFilter.java:
111
) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
186
) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157
) at org.ajaxanywhere.AAFilter.doFilter(AAFilter.java:
46
) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
186
) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157
) at com.thunisoft.summer.web.filter.CharsetFilter.doFilter(CharsetFilter.java:
48
) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
186
) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157
) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
214
) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
104
) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
520
) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:
198
) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
152
) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
104
) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
520
) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
137
) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
104
) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:
118
) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
102
) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
520
) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:
109
) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:
104
) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
520
) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:
929
) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:
160
) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
799
) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:
705
) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:
577
) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:
683
) at java.lang.Thread.run(Thread.java:
534
)
有点不太明白，为什么增加静态方法就要重启tomcat服务？这样在开发过程中如果经常增加static方法岂不是每次都要重启，然后就会很浪费时间了。另外，为什么如果我只是修改了原来已经存在的static方法的实现，则可以正常调试。
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