后端-Mybatis，初学者的配置文件、环境、配置以及连接池

最新推荐文章于 2025-06-23 00:20:16 发布

原创

最新推荐文章于 2025-06-23 00:20:16 发布 · 802 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#后端

这篇学习笔记详述了Mybatis的配置文件MybatisConfig.xml和Mapper配置，包括日志配置log4j.properties，JDBC环境设置，连接池的概念及类型，事务的四大特性ACID以及解决并发问题的隔离级别。此外，还介绍了Mybatis中Mapper的四种配置方式，包括类和包的映射以及资源文件的指定。

拿出来大家共勉，不足之处请指正。
很久之前的学习笔记了，一直存放在本地中

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">

Mapper

<?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">

log4j.properties

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE

# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE

# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=d:\axis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n