记录config

1. mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

    <!--引入外部配置文件-->
    <properties resource="db.properties"/>

    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="${driver}"/>
                <property name="url" value="${url}"/>
                <property name="username" value="${username}"/>
                <property name="password" value="${password}"/>
            </dataSource>
        </environment>
    </environments>

    <!--每一个Mapper.xml文件都需要在Mybatis核心配置文件中注册-->  
    <mappers>
        <mapper resource="org/mybatis/example/BlogMapper.xml"/>
    </mappers>

</configuration>

2. db.properties

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/school?useSSL=true&useUnicode=true&characterEncoding=UTF-8
username=root
password=123456

school是数据库.

3. c3p0.properties

c3p0.jdbcUrl=jdbc:mysql://localhost:3306/school?useSSL=false&characterEncoding=utf-8
c3p0.driverClass=com.mysql.jdbc.Driver
c3p0.user=root
c3p0.password=123456

4. log4j.properties

### set log levels ###
 log4j.rootLogger = DEBUG , C

 ### console ###
 log4j.appender.C = org.apache.log4j.ConsoleAppender
 log4j.appender.C.Target = System.out
 log4j.appender.C.layout = org.apache.log4j.PatternLayout
 log4j.appender.C.layout.ConversionPattern = [mybatis_study][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

 ###mybatis show sql###
 log4j.logger.com.ibatis=debug
 log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=debug
 log4j.logger.com.ibatis.common.jdbc.ScriptRunner=debug
 log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=debug

 log4j.logger.java.sql.Connection=debug
 log4j.logger.java.sql.Statement=debug
 log4j.logger.java.sql.PreparedStatement=debug

#将等级为DEBUG的日志信息输出到console和file这两个目的地，console和file的定义在下面的代码
log4j.rootLogger=DEBUG,console,file

#控制台输出的相关设置
log4j.appender.console = org.apache.log4j.ConsoleAppender
log4j.appender.console.Target = System.out
log4j.appender.console.Threshold=DEBUG
log4j.appender.console.layout = org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%c]-%m%n

#文件输出的相关设置
log4j.appender.file = org.apache.log4j.RollingFileAppender
log4j.appender.file.File=./log/guo.log
log4j.appender.file.MaxFileSize=10mb
log4j.appender.file.Threshold=DEBUG
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=[%p][%d{yy-MM-dd}][%c]%m%n

#日志输出级别
log4j.logger.org.mybatis=DEBUG
log4j.logger.java.sql=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.ResultSet=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

5. *Mapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
  PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="org.mybatis.example.BlogMapper">

    <select id="selectBlog" resultType="Blog">
        select * from Blog where id = #{id}
    </select>

</mapper>

6. applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           https://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="..." class="...">  
        <!-- collaborators and configuration for this bean go here -->
    </bean>

    <bean id="..." class="...">
        <!-- collaborators and configuration for this bean go here -->
    </bean>

    <!-- more bean definitions go here -->

</beans>