Spring日志没有写入log4j2 [英] Spring logs not written in log4j2

问题描述

我是spring和log4j的新手。我正在尝试使用spring框架和使用log4j2库的示例Hello World项目。我的src文件夹中有log4j2.xml。当我运行应用程序时，只有我的应用程序日志写在日志文件中。弹簧日志没有写入。但是我可以在控制台中看到它们。我在我的类路径中有公共记录jar（spring dependency），log4j2和spring jar。如果我在这里缺少任何配置，有人可以帮助我吗？

I am new to spring and log4j.I am trying a sample Hello World project with spring framework and using log4j2 library. I have log4j2.xml in my src folder. When i run the application, only my application logs are written in the log file. The spring logs are not written.However i can see them in the console. I have commons logging jar (spring dependency), log4j2 and spring jars in my classpath. Can anyone help me if I am missing any configuration here?

我的log4j2 xml文件，

My log4j2 xml file,

<?xml version="1.0" encoding="UTF-8"?>
<configuration  status="trace" monitorInterval="5">
<Appenders>
<Console name="consoleAppender" target="SYSTEM_OUT">
  <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
</Console>
<File name="fileAppender" fileName="learning.log" append="true">
  <PatternLayout pattern="%t %-5p %c{2} - %m%n"/>
</File>
</Appenders>

<Loggers>
<Root level="trace">
  <AppenderRef ref="consoleAppender"/>
  <AppenderRef ref="fileAppender"/>
</Root>
</Loggers>  
</configuration>

我的代码：

public class MainApp {
static Logger log = LogManager.getLogger(MainApp.class.getName());

public static void main(String[] args) {
  ApplicationContext context = 
         new ClassPathXmlApplicationContext("Beans.xml");

  log.info("Going to create HelloWord Obj");

  HellowWorld obj = (HellowWorld) context.getBean("helloWorld");

  obj.getMessage();

  log.info("Exiting the program");
}
}

输出：

main INFO  springExample.MainApp - Going to create HelloWord Obj
main INFO  springExample.MainApp - Exiting the program

输出文件中缺少春天日志。

The spring logs are missing in the output file.

谢谢，
Suma

Thanks, Suma

推荐答案

由于其他答案没有在实际答案中拼写出来，解决方案是添加Commons Logging Bridge依赖项下面是Maven pom.xml文件。

Since the other answers don't spell it out in the actual answer, the solution is to add the Commons Logging Bridge dependency below to the Maven pom.xml file.

如 Apache Log4j web所述页面：

如果现有组件使用Apache Commons Logging 1.x并且您希望
将此日志记录路由到到Log4j 2，然后添加以下但不要
删除任何Commons Logging 1.x依赖项。

If existing components use Apache Commons Logging 1.x and you want to have this logging routed to Log4j 2, then add the following but do not remove any Commons Logging 1.x dependencies.

<dependencies>
  ...
  <dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-jcl</artifactId>
    <version>2.1</version>
  </dependency>
  ...
</dependencies>

---

请参阅以下示例添加此项的效果依赖：

---

See the example below of the effect of adding this dependency in:

May 11, 2015 8:10:41 PM org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@300ffa5d: startup date [Mon May 11 20:10:41 IST 2015]; root of context hierarchy
May 11, 2015 8:10:42 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [datapower.xml]
May 11, 2015 8:10:42 PM org.springframework.ws.soap.saaj.SaajSoapMessageFactory afterPropertiesSet
INFO: Creating SAAJ 1.3 MessageFactory with SOAP 1.1 Protocol
May 11, 2015 8:10:42 PM org.springframework.oxm.jaxb.Jaxb2Marshaller createJaxbContextFromContextPath
INFO: Creating JAXBContext with context path [com.datapower.schemas.management]
May 11, 2015 8:10:45 PM org.springframework.oxm.jaxb.Jaxb2Marshaller createJaxbContextFromContextPath
INFO: Creating JAXBContext with context path [com.datapower.schemas.management]
May 11, 2015 8:10:47 PM org.springframework.ws.soap.saaj.SaajSoapMessageFactory afterPropertiesSet
INFO: Creating SAAJ 1.3 MessageFactory with SOAP 1.1 Protocol

之后：

After:

22:07:21.925 [main] INFO  org.springframework.context.support.ClassPathXmlApplicationContext - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@22eeefeb: startup date [Mon May 11 22:07:21 IST 2015]; root of context hierarchy
22:07:21.950 [main] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [datapower.xml]
22:07:22.059 [main] INFO  org.springframework.ws.soap.saaj.SaajSoapMessageFactory - Creating SAAJ 1.3 MessageFactory with SOAP 1.1 Protocol
22:07:22.068 [main] INFO  org.springframework.oxm.jaxb.Jaxb2Marshaller - Creating JAXBContext with context path [com.datapower.schemas.management]
22:07:24.446 [main] INFO  org.springframework.oxm.jaxb.Jaxb2Marshaller - Creating JAXBContext with context path [com.datapower.schemas.management]
22:07:26.554 [main] INFO  org.springframework.ws.soap.saaj.SaajSoapMessageFactory - Creating SAAJ 1.3 MessageFactory with SOAP 1.1 Protocol

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