java Spring 3 SimpleMappingExceptionResolver warnLogCategory log4j
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Spring 3 SimpleMappingExceptionResolver warnLogCategory log4j
提问by john
<bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<map>
<entry key="java.lang.Exception" value="error"/>
</map>
</property>
<property name="warnLogCategory" value="abcdefg"/>
</bean>
I would like to log the exception above into a .log file, but it does not log =(. Could someone comment on what might be wrong with my log4j properties...or anything else?
我想将上面的异常记录到 .log 文件中，但它没有记录 =(。有人可以评论我的 log4j 属性可能有什么问题......或其他任何东西吗？
Using Spring 3.0.5
使用 Spring 3.0.5
thanks
谢谢
log4j.rootLogger=DEBUG, stdout, pqe
log4j.category.abcdefg=WARN, pqe
log4j.appender.pqe=org.apache.log4j.DailyRollingFileAppender
log4j.appender.pqe.DatePattern=_yyyyMMdd
log4j.appender.pqe.File=D:\pqe.log
log4j.appender.pqe.layout=org.apache.log4j.PatternLayout
log4j.appender.pqe.layout.ConversionPattern=%d|%5p|%c %m%n
回答by Jerry Sky Walker
my solution is override method logExceptionin SimpleMappingExceptionResolver
我的解决办法是重写方法logException中的SimpleMappingExceptionResolver
new resolver:
新解析器：
public class LoggingExceptionResolver extends SimpleMappingExceptionResolver {
private Logger logger = LoggerFactory.getLogger(LoggingExceptionResolver.class);
@Override
protected void logException(Exception ex, HttpServletRequest request) {
this.logger.warn(buildLogMessage(ex, request), ex);
}
}
}
spring config:
弹簧配置：
<bean id="exceptionResolver" class="com.zyam.isu.core.utils.log.LoggingExceptionResolver">
<property name="defaultErrorView">
<value>error.jsp</value>
</property>
<property name="exceptionMappings">
<props>
<prop key="java.lang.RuntimeException">error.jsp</prop>
<prop key="java.lang.Exception">error.jsp</prop>
</props>
</property>
</bean>
logback.xml
登录文件
<logger name="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<level value="warn" />
</logger>
I think logback config is similar with log4j, hope could help you
我认为 logback 配置与 log4j 类似，希望可以帮助您
回答by hisdrewness
Try to extend it with something like:
尝试使用以下内容扩展它：
public class LoggingExceptionResolver extends SimpleMappingExceptionResolver {
public LoggingExceptionResolver(String category) {
super();
this.warnLogger = LoggerFactory.getLogger(category); // or whatever log implementation
}
}
<bean id="exceptionResolver" class="package.name.LoggingExceptionResolver">
<constructor-arg value="abcdefg"/>
<property name="exceptionMappings">
<map>
<entry key="java.lang.Exception" value="error"/>
</map>
</property>
</bean>
But this is basically the same thing as:
但这与以下内容基本相同：
<!-- whatever the implmentation/class name is -->
<bean id="log" class="org.apache.log4j.logger.Logger" factory-method="getLogger">
<constructor-arg value="abcdefg"/>
</bean>
<bean id="exceptionResolver" class="package.name.LoggingExceptionResolver">
<property name="warnLogger" ref="log" />
<property name="exceptionMappings">
<map>
<entry key="java.lang.Exception" value="error"/>
</map>
</property>
</bean>
with the correct log4j.logger.abcdefg=WARN
用正确的 log4j.logger.abcdefg=WARN
回答by sw1nn
You have multiple log4j.jar provided to you application by multiple classloaders and your app is finding the wrong one and using the default configuration from there almost certainly. You can verify this by starting your application with
您有多个由多个类加载器提供给您的应用程序的 log4j.jar，并且您的应用程序正在查找错误的一个，并且几乎可以肯定地使用那里的默认配置。您可以通过启动您的应用程序来验证这一点
java -Dlog4j.configuration=/path/to/log4j.properties ... StartupClass
log4j will always use the system property before it searches for another file.
log4j 在搜索另一个文件之前将始终使用系统属性。
If that fixes your problem you will need to tweak your build to only include the log4j related resources that you really need and remove the system property.
如果这解决了您的问题，您将需要调整您的构建以仅包含您真正需要的 log4j 相关资源并删除系统属性。
