Log4j2記錄日志到數(shù)據(jù)庫(MySQL&MongoDB)

2019-11-11 03:33:50

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【摘要】

本文主要介紹Log4j2記錄日志到MySQL和MongoDB數(shù)據(jù)庫，用簡單的例子來講解，并解決了一些官方配置可能出現(xiàn)的錯誤。具體內(nèi)容可參見官方文檔：http://logging.apache.org/log4j/2.x/manual/appenders.html左側(cè)導(dǎo)航欄的Appenders->JDBC和Appenders->NoSQL兩項

【引用】

Log4j2的基本配置我在前面的文章已經(jīng)介紹，具體可參見：http://blog.csdn.net/ererfei/article/details/46831807

1 Log4j2記錄日志到MySQL

1.1 首先創(chuàng)建存儲日志的數(shù)據(jù)表ibs_log

創(chuàng)建語句如下：

[sql] view plain copy

DROP TABLE IF EXISTS `ibs_log`; CREATE TABLE `ibs_log` ( `log_id` int(10) NOT NULL AUTO_INCREMENT, `log_date` datetime NOT NULL COMMENT '日期', `log_file` varchar(255) DEFAULT NULL COMMENT '文件名', `log_line` varchar(255) DEFAULT NULL COMMENT '行號', `log_thread`varchar(255) DEFAULT NULL COMMENT '線程', `log_level` varchar(255) DEFAULT NULL COMMENT 'Log級別 info warndebug error等', `log_message` varchar(2048) DEFAULT NULL COMMENT 'Log信息',

1.2 創(chuàng)建Log4j2.xml配置文件

需要創(chuàng)建數(shù)據(jù)表、數(shù)據(jù)行的對應(yīng)關(guān)系

[html] view plain copy

<?xml version="1.0"encoding="UTF-8"?>  <Configuration status="off"monitorInterval="30"> <Appenders> <JDBC name="databaseAppender" tableName="ibs_log"> <ConnectionFactory class="com.*.*.ConnectionFactory"method="getDatabaseConnection" /> <Column name="log_date" isEventTimestamp="true"/> <Column name="log_file" pattern="%file" /> <Column name="log_line" pattern="%line" /> <Column name="log_thread" pattern="%thread" /> <Column name="log_level" pattern="%level" /> <Column name="log_message" pattern="%message"/> </JDBC> </Appenders> <Loggers>  <Logger name="項目包名（com.*.*）" level="debug"> <appender-ref ref="databaseAppender"/> </Logger> <Root level="off"></Root> </Loggers> </Configuration>

1.3 創(chuàng)建數(shù)據(jù)庫連接類ConnectionFactory

需要修改下面代碼中用戶名、密碼、數(shù)據(jù)庫名稱為你使用的數(shù)據(jù)庫對用的用戶名密碼以及名稱：

【ConnectionFactory.java】

[java] view plain copy

package com.centerm.util; import java.sql.Connection; import java.sql.SQLException; import java.util.Properties; import javax.sql.DataSource; importorg.apache.commons.dbcp.DriverManagerConnectionFactory; importorg.apache.commons.dbcp.PoolableConnection; import org.apache.commons.dbcp.PoolableConnectionFactory; importorg.apache.commons.dbcp.PoolingDataSource; importorg.apache.commons.pool.impl.GenericObjectPool; public class ConnectionFactory { privatestatic interface Singleton { final ConnectionFactory INSTANCE = new ConnectionFactory(); } private final DataSource dataSource; private ConnectionFactory() { try { Class.forName("com.mysql.jdbc.Driver"); } catch (ClassNotFoundException e) { e.printStackTrace(); System.exit(0); } Properties properties = new Properties(); properties.setProperty("user", "用戶名"); properties.setProperty("passWord", "密碼"); //or get properties from some configuration file GenericObjectPool<PoolableConnection>pool = new GenericObjectPool<PoolableConnection>(); DriverManagerConnectionFactory connectionFactory = newDriverManagerConnectionFactory( "jdbc:mysql://localhost:3306/數(shù)據(jù)庫名稱",properties ); new PoolableConnectionFactory( connectionFactory, pool, null,"SELECT 1", 3, false, false, Connection.TRANSACTION_READ_COMMITTED ); this.dataSource = new PoolingDataSource(pool); } public static Connection getDatabaseConnection() throws SQLException { return Singleton.INSTANCE.dataSource.getConnection(); } }

至此就可以運行項目測試了

1.4 特別注意

由于項目啟動時Log4j2是最先加載的內(nèi)容，所以有可能出現(xiàn)ConnectionFactory這個類啟動報錯，所以需要在官網(wǎng)提供實例的基礎(chǔ)上添加代碼（上面類中已經(jīng)添加）：

2 Log4j2記錄日志到MongoDB

安裝運行MongoDB：http://www.runoob.com/mongodb/mongodb-window-install.html

MongoDB驅(qū)動下載：http://central.maven.org/maven2/org/mongodb/mongo-java-driver/

Java MongoDB API學(xué)習(xí)：http://blog.csdn.net/ererfei/article/details/50857103

2.1 創(chuàng)建數(shù)據(jù)庫

運行MongoDB客戶端mongo-cli.exe，使用命令”usetest”創(chuàng)建數(shù)據(jù)庫test，創(chuàng)建該數(shù)據(jù)庫的用戶[root:password]，不需要手動創(chuàng)建collection。

2.2 創(chuàng)建Log4j2.xml配置文件

[html] view plain copy

<?xml version="1.0"encoding="UTF-8"?>  <Configuration status="off"monitorInterval="30"> <Appenders> <NoSql name="databaseAppender"> <MongoDb databaseName="test"collectionName="logData" server="127.0.0.1"port="27017" userName="root"password="password"/> </NoSql> </Appenders> <Loggers>  <Logger name="com.*.*"level="debug"> <appender-ref ref="databaseAppender"/> </Logger> <Root level="off"></Root> </Loggers> </Configuration>

至此就可以運行項目測試了

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