package com.xiaofangtech.sunt.controller; 
 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RestController; 
 
import com.xiaofangtech.sunt.helper.LogHelper; 
 
@RestController 
@RequestMapping("log") 
public class LogController { 
  private final Logger logger = LoggerFactory.getLogger(this.getClass()); 
   
  @RequestMapping("writelog") 
  public Object writeLog() 
  { 
    logger.debug("This is a debug message"); 
    logger.info("This is an info message"); 
    logger.warn("This is a warn message"); 
    logger.error("This is an error message"); 
    new LogHelper().helpMethod(); 
    return "OK"; 
  } 
} 

package com.xiaofangtech.sunt.helper; 
 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
 
public class LogHelper { 
  private final Logger logger = LoggerFactory.getLogger(this.getClass()); 
  public void helpMethod(){ 
    logger.debug("This is a debug message"); 
    logger.info("This is an info message"); 
    logger.warn("This is a warn message"); 
    logger.error("This is an error message"); 
  } 
} 

<?xml version="1.0" encoding="UTF-8"?> 
 
<!-- 
Base logback configuration provided for compatibility with Spring Boot 1.1 
--> 
 
<included> 
  <include resource="org/springframework/boot/logging/logback/defaults.xml" /> 
  <property name="LOG_FILE" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}/}spring.log}"/> 
  <include resource="org/springframework/boot/logging/logback/console-appender.xml" /> 
  <include resource="org/springframework/boot/logging/logback/file-appender.xml" /> 
  <root level="INFO"> 
    <appender-ref ref="CONSOLE" /> 
    <appender-ref ref="FILE" /> 
  </root> 
</included> 

logging.file=log.log 
logging.level.com.xiaofangtech.sunt.controller = debug 
logging.level.com.xiaofangtech.sunt.helper = warn 

<?xml version="1.0" encoding="UTF-8"?> 
<configuration> 
  <include resource="org/springframework/boot/logging/logback/base.xml"/> 
  <logger name="com.xiaofangtech.sunt.controller" level="WARN" additivity="false"> 
    <appender-ref ref="CONSOLE"/> 
    <appender-ref ref="FILE"/> 
  </logger> 
  <logger name="com.xiaofangtech.sunt.helper" level="WARN" additivity="false"> 
    <appender-ref ref="CONSOLE"/> 
    <appender-ref ref="FILE"/> 
  </logger> 
 </configuration>