思路：

 1.在yml 檔案中配置log日誌路徑

 2.在java中引入log包呼叫 inif()方法寫入內容

 3.在yml配置的路徑中生成log檔案

.java

@RestController
public class DeptController {
	
	/**
	 * 設定本類logger
	 * 
	 */
	private final org.apache.juli.logging.Log logger =LogFactory.getLog(DeptController.class);
	
	/**
	 *  方法
	 * @return
	 */
	@RequestMapping(value = "/dept/add", method = RequestMethod.POST)
	public String test(){
		logger.info("日誌內容");
		return "";
	}
	
}
 

.yml

server: 
 port: 8003

logging:  
  file: D:/data/mylog/myLog.log 
  path: D:/data/mylog