保存报错

z2016

java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.justep.system.action.Engine.invokeActions(Native Method)
        at com.justep.system.action.Engine.invokeActions(Unknown Source)
        at com.justep.business.server.BusinessServer.doAction(Unknown Source)
        at com.justep.business.server.BusinessServer.doExcute(Unknown Source)
        at com.justep.business.server.BusinessServer.excute(Unknown Source)
        at com.justep.business.server.BusinessServer.excute(Unknown Source)
        at com.justep.business.server.BusinessServerServlet.execService(Unknown Source)
        at com.justep.business.server.BusinessServerServlet.service(Unknown Source)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at com.justep.x.bs.BusinessServerServlet.service(Unknown Source)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        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:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
        at com.wor.utils.AttachmentUtil.saveBeforeTransformFile(AttachmentUtil.java:90)
        at F_XJJLProcess.f_XJJLProcessBeforeSaveXMPM_ZLGLBAction(F_XJJLProcess.java:22)
        ... 27 more

jishuang

F_XJJLProcess.f_XJJLProcessBeforeSaveXMPM_ZLGLBAction(F_XJJLProcess.java:22)
java代码中空指针了，调试跟踪一下

z2016

jishuang 发表于 2017-6-22 16:00
F_XJJLProcess.f_XJJLProcessBeforeSaveXMPM_ZLGLBAction(F_XJJLProcess.java:22)
java代码中空指针了，调 ...

怎么调试呢

jishuang

http://bbs.wex5.com/forum.php?mo ... 4&pid=164929261