使用logback.xml配置来实现日志文件输出

转自：http://sungang-1120.iteye.com/blog/2104296 

Logback是由log4j创始人设计的又一个开源日志组件。logback当前分成三个模块：logback-core,logback- classic和logback-access。logback-core是其它两个模块的基础模块。logback-classic是log4j的一个 改良版本。此外logback-classic完整实现SLF4J API使你可以很方便地更换成其它日志系统如log4j或JDK14 Logging。logback-access访问模块与Servlet容器集成提供通过Http来访问日志的功能。

 

logback.xml配置如下：

 

xml version="1.0" encoding="UTF-8"?>







    <property name="log_dir" value="/logs/ev_cmdb" />

    <property name="maxHistory" value="30"/>





    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">

        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger -%msg%npattern>
        encoder>
    appender>




    <appender name="ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERRORlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/error-log.logfileNamePattern>

    <appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>WARNlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/warn-log.log
            fileNamePattern>

            <maxHistory>${maxHistory}maxHistory>
        rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%npattern>
        encoder>
    appender>





    <appender name="INFO" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>INFOlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/info-log.log
            fileNamePattern>

            <maxHistory>${maxHistory}maxHistory>
        rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%npattern>
        encoder>
    appender>





    <appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>DEBUGlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/debug-log.log
            fileNamePattern>

            <maxHistory>${maxHistory}maxHistory>
        rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%npattern>
        encoder>
    appender>





    <appender name="TRACE" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>TRACElevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/trace-log.log
            fileNamePattern>

            <maxHistory>${maxHistory}maxHistory>
        rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%npattern>
        encoder>
    appender>

    <logger name="java.sql.PreparedStatement" value="DEBUG" />
    <logger name="java.sql.Connection" value="DEBUG" />
    <logger name="java.sql.Statement" value="DEBUG" />
    <logger name="com.ibatis" value="DEBUG" />
    <logger name="com.ibatis.common.jdbc.SimpleDataSource" value="DEBUG" />
    <logger name="com.ibatis.common.jdbc.ScriptRunner" level="DEBUG"/>
    <logger name="com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate" value="DEBUG" />




    <root level="debug">

        <appender-ref ref="STDOUT" />

        <appender-ref ref="ERROR" />
        <appender-ref ref="INFO" />
        <appender-ref ref="WARN" />
        <appender-ref ref="DEBUG" />
        <appender-ref ref="TRACE" />
    root>
configuration>

 

 

LogUtils.java

 

package log.base;

package com.ghca.easyview.server.common.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LogUtils {
    /**
     * 错误输入日志
     */
    public static final Logger log = LoggerFactory.getLogger(LogUtils.class);

    /**
     * 记录一直 info信息
     *
     * @param message
     */
    public static void logInfo(String message) {
        StringBuilder s = new StringBuilder();
        s.append((message));
        log.info(s.toString());
    }

    public static void logInfo(String message, Throwable e) {
        StringBuilder s = new StringBuilder();
        s.append(("exception : -->>"));
        s.append((message));
        log.info(s.toString(), e);
    }

    public static void logWarn(String message) {
        StringBuilder s = new StringBuilder();
        s.append((message));

        log.warn(s.toString());
    }

    public static void logWarn(String message, Throwable e) {
        StringBuilder s = new StringBuilder();
        s.append(("exception : -->>"));
        s.append((message));
        log.warn(s.toString(), e);
    }

    public static void logDebug(String message) {
        StringBuilder s = new StringBuilder();
        s.append((message));
        log.debug(s.toString());
    }

    public static void logDebug(String message, Throwable e) {
        StringBuilder s = new StringBuilder();
        s.append(("exception : -->>"));
        s.append((message));
        log.debug(s.toString(), e);
    }

    public static void logError(String message) {
        StringBuilder s = new StringBuilder();
        s.append(message);
        log.error(s.toString());
    }

    /**
     * 记录日志错误信息
     *
     * @param message
     * @param e
     */
    public static void logError(String message, Throwable e) {
        StringBuilder s = new StringBuilder();
        s.append(("exception : -->>"));
        s.append((message));
        log.error(s.toString(), e);
    }
}

 

TEST

package com.ghca.easyview.server.log.test;

import java.io.File;
import java.io.IOException;

import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import ch.qos.logback.core.joran.spi.JoranException;

import com.ghca.easyview.server.common.utils.LogBackConfigLoader;
import com.ghca.easyview.server.common.utils.LogUtils;
import com.ghca.easyview.server.config.ServerConfig;

public class TestLog {

    @Before
    public void before() {
        File file = new File(System.getProperty("user.dir"));
        String path = file.getPath() + File.separator + "conf";
        // 将主要配置文件路径赋值给 ServerConfig.configPath属性
        ServerConfig.config_path = path;
        try {
            // 加载日志文件
            LogBackConfigLoader.load(ServerConfig
                    .loadLogBackConfPath("logback.xml"));
        } catch (IOException | JoranException e) {
            e.printStackTrace();
        }
    }

    @Test
    public void test1() {
        LogUtils.logInfo("INFO ~");
        LogUtils.logDebug("DEBUG ~");
        LogUtils.logError("ERROR~");
        LogUtils.logWarn("WARN ~");
    }
}

 

 根据日志级别输出不等的日志信息，

转载于:https://www.cnblogs.com/gslyyq/p/5256789.html