零基础搭建自动化测试框架--003日志打印

使用java配置log4j properties文件步骤

    步骤1：从ApacheLog4J下载log4j-1.2.16.jar文件。

    步骤2：创建一个命名为“LoggerExample.java的简单类。

    步骤3：创建log4j.properties文件

    步骤4：将Log4J依包添加到classpath

LoggerExample类：

package test;

import org.apache.log4j.Logger;

public class LoggerExample {
	public static Logger logger = Logger.getLogger(LoggerExample.class);

	public void testLoggerDebug() {
		logger.debug("Hello.. im in Debug method");
	}

	public void testLoggerInfo() {
		logger.info("Hello.. im in Info method");
	}

	public void testLoggerWarn() {
		logger.warn("Hello.. im in Warn method");
	}

	public void testLoggerError() {
		logger.error("Hello.. im in Error method");
	}

	public void testLoggerFatal() {
		logger.fatal("Hello.. im in Fatal method");
	}

	public static void main(String[] args) {
		LoggerExample example = new LoggerExample();
		example.testLoggerDebug();
		example.testLoggerInfo();
		example.testLoggerWarn();
		example.testLoggerError();
		example.testLoggerFatal();
	}
}

在工程src目录下加入log4j.properties文件

 ### 设置###
log4j.rootLogger = debug,stdout,D,E

### 输出信息到控制抬 ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n

### 输出DEBUG 级别以上的日志到=E://logs/error.log ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = d://logs/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG 
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

### 输出ERROR 级别以上的日志到=E://logs/error.log ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =d://logs/error.log 
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR 
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

最终输出结果：

[DEBUG] 2018-06-14 14:32:19,874 method:test.LoggerExample.testLoggerDebug(LoggerExample.java:9)
Hello.. im in Debug method
[INFO ] 2018-06-14 14:32:19,890 method:test.LoggerExample.testLoggerInfo(LoggerExample.java:13)
Hello.. im in Info method
[WARN ] 2018-06-14 14:32:19,890 method:test.LoggerExample.testLoggerWarn(LoggerExample.java:17)
Hello.. im in Warn method
[ERROR] 2018-06-14 14:32:19,890 method:test.LoggerExample.testLoggerError(LoggerExample.java:21)
Hello.. im in Error method
[FATAL] 2018-06-14 14:32:19,890 method:test.LoggerExample.testLoggerFatal(LoggerExample.java:25)
Hello.. im in Fatal method

log4j.properties配置注释参考：

https://blog.csdn.net/sinat_30185177/article/details/73550377