slf4j+log4j與slf4j+logback的簡單測試示例
阿新 • • 發佈：2019-02-14
首先是整個目錄結構：
1.slf4j+log4j
需求：讓com.zero.log4j.log1包下的類的日誌輸出到log1.log中，也可以指定某些日誌輸出到指定的日誌檔案log3.log,其它未指明的預設輸出到log2.log2。
log4j.xml配置日誌：
1: <?xml version="1.0" encoding="UTF-8"?> 2: <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> 3: <log4j:configuration debug="true"> 4: 5: 6: <param name="File" value="logs/log1.log" /> 7: <param name="Append" value="true" /> 8: <!-- 如果是 true，日誌被追加到檔案結尾，如果是 false，清空現存檔案，預設是true。 --> 9: <layout class 10: <param name="ConversionPattern" value="%-5p %d{MM/dd HH:mm} %c %m%n" /> 11: </layout> 12: </appender> 13: 14: <appender name="log2" class="org.apache.log4j.DailyRollingFileAppender"> 15: <param name="File" 16: <param name="Append" value="true" /> 17: <!-- 如果是 true，日誌被追加到檔案結尾，如果是 false，清空現存檔案，預設是true。 --> 18: <layout class="org.apache.log4j.PatternLayout"> 19: <param name="ConversionPattern" value="%-5p %d{MM/dd HH:mm} %C %m%n" /> 20: </layout> 21: </appender> 22: 23: <appender name="log3" class="org.apache.log4j.DailyRollingFileAppender"> 24: <param name="File" value="logs/log3.log" /> 25: <param name="Append" value="true" /> 26: <param name="encoding" value="UTF-8" /> 27: <layout class="org.apache.log4j.PatternLayout"> 28: <param name="ConversionPattern" value="%d{YYYY-MM-dd HH:mm:ss} %-2p [%-5C] %m%n" /> 29: </layout> 30: </appender> 31: 32: <!--可以將com.zero.log4j.log1包中的類日誌輸出指定到到log1.log日誌檔案中 --> 33: <category name="com.zero.log4j.log1" additivity="false"> 34: <priority value="debug" /> 35: <appender-ref ref="log1" /> 36: </category> 37: 38: <!--zero的日誌記錄到log3日誌檔案中 ， Logger.getLogger("zero"); --> 39: <category name="zero" additivity="false"> 40: <priority value="debug" /> 41: <appender-ref ref="log3" /> 42: </category> 43: 44: <!--預設輸出到的log2日誌檔案 --> 45: <root> 46: <priority value="debug" /> 47: <appender-ref ref="log2" /> 48: </root> 49: 50: </log4j:configuration>java程式碼：
1: package com.zero.log4j.log; 2: 3: import org.apache.log4j.Logger; 4: 5: public class LogUtils { 6: private static final Logger logger = Logger.getLogger("zero"); 7: 8: public static void log(String logStr, String logType) { 9: Logger myLogger = Logger.getLogger(logType); 10: myLogger.info(logStr); 11: myLogger.warn(logStr); 12: logger.info("LogUtils, 我想記錄在log3.log"); 13: } 14: } 1: package com.zero.log4j.log1; 2: 3: import org.apache.log4j.Logger; 4: 5: public class Log1 { 6: private Logger logger = Logger.getLogger(Log1.class); 7: 8: public Log1() { 9: logger.debug("Log1,我想記錄在log1.log"); 10: logger.info("Log1,我想記錄在log1.log"); 11: logger.warn("Log1,我想記錄在log1.log"); 12: logger.error("Log1,我想記錄在log1.log"); 13: } 14: } 1: package com.zero.log4j.log2; 2: 3: import org.apache.log4j.Logger; 4: 5: public class Log2 { 6: private Logger logger = Logger.getLogger(Log2.class); 7: public Log2(){ 8: logger.debug("Log2, 我預設記錄到log2.log"); 9: logger.info("Log2, 我預設記錄到log2.log"); 10: logger.warn("Log2, 我預設記錄到log2.log"); 11: logger.error("Log2, 我預設記錄到log2.log"); 12: } 13: } 1: package com.zero.log4j.log3; 2: 3: import org.apache.log4j.Logger; 4: 5: import com.zero.log4j.log.LogUtils; 6: 7: public class Log3 { 8: private Logger logger = Logger.getLogger(Log3.class); 9: public Log3(){ 10: logger.debug("Log3, 我預設記錄到log2.log"); 11: logger.info("Log3, 我預設記錄到log2.log"); 12: logger.warn("Log3, 我預設記錄到log2.log"); 13: logger.error("Log3, 我預設記錄到log2.log"); 14: LogUtils.log("Log3,"+" 我要記錄到log3.log", "zero");; 15: } 16: } 1: package com.zero.test; 2: 3: import java.io.File; 4: 5: import org.apache.log4j.xml.DOMConfigurator; 6: import org.slf4j.Logger; 7: import org.slf4j.LoggerFactory; 8: 9: import com.zero.log4j.log1.Log1; 10: import com.zero.log4j.log2.Log2; 11: import com.zero.log4j.log3.Log3;12: