Spring框架 -- 使用 Log4J

蔚落 2023-06-07 12:15 27阅读 0赞

## Spring框架 – 使用 Log4J ##

#### 前言 ####

下载地址链接： [http://logging.apache.org/][http_logging.apache.org]

依赖地址 ： [https://mvnrepository.com/artifact/log4j/log4j/1.2.17][https_mvnrepository.com_artifact_log4j_log4j_1.2.17]

## 测试类 ##

public class HelloWorld { 
       private String message;
       public void setMessage(String message){ 
          this.message  = message;
       }
       public void getMessage(){ 
          System.out.println("Your Message : " + message);
       }
    }

public class MainApp { 
       static Logger log = Logger.getLogger(MainApp.class.getName());
       public static void main(String[] args) { 
          ApplicationContext context = 
                 new ClassPathXmlApplicationContext("Beans.xml");
          log.info("Going to create HelloWord Obj");
          HelloWorld obj = (HelloWorld) context.getBean("helloWorld");
          obj.getMessage();
          log.info("Exiting the program");
       }
    }

**Beans.xml**

<?xml version="1.0" encoding="UTF-8"?>
    
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
    
       <bean id="helloWorld" class="com.tutorialspoint.HelloWorld">
           <property name="message" value="Hello World!"/>
       </bean>
    
    </beans>

**log4j.properties**

# Define the root logger with appender file
    log4j.rootLogger = DEBUG, FILE
    
    # Define the file appender
    log4j.appender.FILE=org.apache.log4j.FileAppender
    # Set the name of the file
    log4j.appender.FILE.File=C:\\log.out
    
    # Set the immediate flush to true (default)
    log4j.appender.FILE.ImmediateFlush=true
    
    # Set the threshold to debug mode
    log4j.appender.FILE.Threshold=debug
    
    # Set the append to false, overwrite
    log4j.appender.FILE.Append=false
    
    # Define the layout for file appender
    log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
    log4j.appender.FILE.layout.conversionPattern=%m%n

[http_logging.apache.org]: http://logging.apache.org/
[https_mvnrepository.com_artifact_log4j_log4j_1.2.17]: https://mvnrepository.com/artifact/log4j/log4j/1.2.17