mybatis 3.2.8 + log4j2.0.2 控制台输出sql语句
mybatis 3.2.8 + log4j2.0.2 控制台输出sql语句
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