struts2 - Log4j not logging when an error occured in my struts 2 action class -
in struts 2 application have no stacktrace when error occurs. test in action class created null object on try call method. struts 2 filter shows me error screen excepions mapping correct, in log file have nothing. way add try/catch log.error(e) in catch statement.
struts.xml :
<interceptors> <interceptor name="authz" class="com.omb.controller.security.authzinterceptor"/> <interceptor name="params-filter" class="com.opensymphony.xwork2.interceptor.parameterfilterinterceptor"/> <interceptor name="user" class="com.omb.controller.interceptor.userinterceptor"/> <interceptor-stack name="defaultstack"> <interceptor-ref name="exception"> <param name="exception.logenabled">true</param> <param name="exception.loglevel">error</param> </interceptor-ref> <interceptor-ref name="alias"/> <interceptor-ref name="servletconfig"/> <interceptor-ref name="i18n"/> <interceptor-ref name="chain"/> <interceptor-ref name="modeldriven"/> <interceptor-ref name="fileupload"/> <interceptor-ref name="staticparams"/> <interceptor-ref name="conversionerror"/> <interceptor-ref name="params"/> <interceptor-ref name="authz"/> <interceptor-ref name="user"/> <interceptor-ref name="prepare"/> <interceptor-ref name="validation"/> <interceptor-ref name="workflow"/> </interceptor-stack> </interceptors> <default-interceptor-ref name="defaultstack"/> <global-results> <result name="technicalerror" type="chain">erroraction</result> <result name="sessioninvaliderror" type="tiles">sessioninvalid</result> <result name="blank" type="tiles">blank</result> </global-results> <global-exception-mappings> <exception-mapping exception="java.lang.exception" result="technicalerror"/> <exception-mapping exception="com.omb.service.exception.usersessioninvalidexception" result="sessioninvaliderror"/> </global-exception-mappings> log4j.xml :
<appender name="console" class="org.apache.log4j.consoleappender"> <param name="target" value="system.out"/> <layout class="org.apache.patternlayout"> <param name="conversionpattern" value="%-5p %c{1} - %m%n"/> </layout> </appender> <appender name="file" class="org.apache.log4j.fileappender"> <param name="file" value="${application.log4j.filename}"/> <param name="append" value="true"/> <layout class="org.apache.log4j.patternlayout"> <param name="conversionpattern" value="%d{date}|%-5p|%37c|%m%n"/> </layout> </appender> <appender name="dailyfile" class="org.apache.log4j.dailyrollingfileappender"> <param name="file" value="${application.log4j.filename}"/> <param name="append" value="true"/> <param name="datepattern" value="'.'yyyy-mm-dd"/> <layout class="org.apache.log4j.patternlayout"> <param name="conversionpattern" value="%d{date}|%-5p|%37c|%m%n"/> </layout> </appender> <root> <priority value="${application.log4j.logger.root}"/> <appender-ref ref="dailyfile"/> </root> <logger name="com.opensymphony.xwork2"> <level value="${application.log4j.logger.com.opensymphony.xwork2}"/> </logger> <logger name="org.apache.struts2"> <level value="${application.log4j.logger.org.apache.struts2}"/> </logger> <logger name="org.hibernate"> <level value="error"/> </logger> <logger name="org.springframework"> <level value="error"/> </logger> <logger name="com.omb"> <level value="${application.log4j.logger.com.accor.scoring}"/> </logger> <logger name="com.omb.mapping.or"> <level value="${application.log4j.logger.com.accor.scoring.mapping.or}"/> </logger> <logger name="org.acegisecurity"> <level value="${application.log4j.category.net.sf.acegisecurity}"/> </logger> <logger name="com.omb.i18n"> <level value="${application.log4j.logger.com.accor.scoring.i18n}"/> </logger> action class :
package com.omb.controller.gm; public class myaction extends actionsupport { /** * * @see com.opensymphony.xwork2.actionsupport#execute() */ public string execute() { object ob = null; ob.tostring(); return success; } }
i found workaround implementing interceptor :
package com.omb.controller.interceptor; import org.apache.commons.logging.log; import org.apache.commons.logging.logfactory; import com.opensymphony.xwork2.actioninvocation; import com.opensymphony.xwork2.interceptor.abstractinterceptor; public class customexceptioninterceptor extends abstractinterceptor { log logger = logfactory.getlog(customexceptioninterceptor.class); /** * @see com.opensymphony.xwork2.interceptor.abstractinterceptor#intercept(com.opensymphony.xwork2.actioninvocation) */ @override public string intercept(actioninvocation invocation) { try { return invocation.invoke(); } catch (exception ex) { logger.error(ex.getmessage(), ex); return "error"; } } } interceptor definition in struts.xml :
<interceptors> <interceptor name="authz" class="com.omb.controller.security.authzinterceptor"/> <interceptor name="params-filter" class="com.opensymphony.xwork2.interceptor.parameterfilterinterceptor"/> <interceptor name="user" class="com.omb.controller.interceptor.userinterceptor"/> <interceptor name="customexception" class="com.omb.controller.interceptor.customexceptioninterceptor"/> <interceptor-stack name="defaultstack"> <interceptor-ref name="exception"> <param name="exception.logenabled">true</param> <param name="exception.loglevel">error</param> </interceptor-ref> <interceptor-ref name="alias"/> <interceptor-ref name="servletconfig"/> <interceptor-ref name="i18n"/> <interceptor-ref name="chain"/> <interceptor-ref name="modeldriven"/> <interceptor-ref name="fileupload"/> <interceptor-ref name="staticparams"/> <interceptor-ref name="conversionerror"/> <interceptor-ref name="params"/> <interceptor-ref name="authz"/> <interceptor-ref name="user"/> <interceptor-ref name="prepare"/> <interceptor-ref name="validation"/> <interceptor-ref name="workflow"/> <interceptor-ref name="customexception"/> </interceptor-stack> </interceptors>
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