mybatis3.2.7有一个bug,使用log4j2 (2.0.2)版本时,会找不到类 ,导致启动失败,详见
https://github.com/mybatis/mybatis-3/issues/235
但没过多久 , 3.2.8就已经修复了这个bug , 最新的mybatis3.2.8下载地址为:
https://github.com/mybatis/mybatis-3/releases
mybatis 3.2.8 整合 log4j2.0.2并不复杂 , 如果用spring-mvc做为web框架 , 以下是使用步骤:
1. pom.xml添加依赖项
1 <dependency> 2 <groupId>org.slf4j</groupId> 3 <artifactId>slf4j-api</artifactId> 4 <version>1.7.7</version> 5 </dependency> 6 <dependency> 7 <groupId>org.apache.logging.log4j</groupId> 8 <artifactId>log4j-api</artifactId> 9 <version>${log4j2.version}</version> 10 </dependency> 11 <dependency> 12 <groupId>org.apache.logging.log4j</groupId> 13 <artifactId>log4j-core</artifactId> 14 <version>${log4j2.version}</version> 15 </dependency> 16 <dependency> 17 <groupId>org.apache.logging.log4j</groupId> 18 <artifactId>log4j-web</artifactId> 19 <version>${log4j2.version}</version> 20 </dependency> 21 <dependency> 22 <groupId>org.apache.logging.log4j</groupId> 23 <artifactId>log4j-slf4j-impl</artifactId> 24 <version>2.0.2</version> 25 </dependency>
slf4j的二项好象不加也行 , 大家可以自行试试
2. web.xml中增加listener
1 <listener> 2 <listener-class>org.apache.logging.log4j.web.Log4jServletContextListener</listener-class> 3 </listener> 4 <filter> 5 <filter-name>log4jServletFilter</filter-name> 6 <filter-class>org.apache.logging.log4j.web.Log4jServletFilter</filter-class> 7 </filter> 8 <filter-mapping> 9 <filter-name>log4jServletFilter</filter-name> 10 <url-pattern>/*</url-pattern> 11 <dispatcher>REQUEST</dispatcher> 12 <dispatcher>FORWARD</dispatcher> 13 <dispatcher>INCLUDE</dispatcher> 14 <dispatcher>ERROR</dispatcher> 15 </filter-mapping>
上面这一段,加在web.xml最开头（注：这一步好象也可以去掉）
3. maven项目的resouces目录下 , 放置log4j2.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <Configuration status="off" monitorInterval="1800"> 3 4 <Appenders> 5 <Console name="Console" target="SYSTEM_OUT"> 6 <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" /> 7 </Console> 8 </Appenders> 9 10 <Loggers> 11 <Root level="debug"> 12 <AppenderRef ref="Console" /> 13 </Root> 14 </Loggers> 15 </Configuration>
只要把root logger的级别调成debug级别即可
4.如果采用mybatis-spring项目来集成mybatis, spring配置文件参考下面这样:
1 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 2 <property name="dataSource" ref="dataSource" /> 3 <property name="configLocation" value="classpath:mybatis-config.xml"></property> 4 <property name="typeAliasesPackage" value="com.cnblogs.yjmyzz.entity"></property> 5 <property name="mapperLocations" value="classpath:mybatis/**/*.xml"></property> 6 </bean>
<property name="configLocation" value="classpath:mybatis-config.xml"></property> 这一行,指定了mybatis的主配置文件
5.mybatis-config配置文件
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 3 "http://mybatis.org/dtd/mybatis-3-config.dtd"> 4 <configuration> 5 <settings> 6 <setting name="logImpl" value="LOG4J2" /> 7 </settings> 8 </configuration>
指定mybatis使用log4j2来记录日志
如果在jboss eap 6.x上部署 , 启动时会有一个error , 但并不影响项目正常运行 , 这是log4j2的一个bug , 估计在后续版本中会修复,详情见:http://mail-archives.apache.org/mod_mbox/logging-log4j-dev/201403.mbox/%3CJIRA.12696787.1393155172406.128647.1393632623629@arcas%3E
鉴于国内不太方便下载github上的东西,最后给出mybatis-2.3.8.jar包文件下载:mybatis-3.2.8.jar.zip
