3.2 mybatis.config.xml_properties_引入外部配置文件

柔情只为你懂 2022-06-01 10:56 234阅读 0赞

properties属性不常用

实例：

1.项目完整结构目录

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properties-config.properties

jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost:3306/mybatis
    jdbc.username=root
    jdbc.password=shapolang

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>
      
      
      <properties resource="properties-config.properties"></properties>
      
    	
    	<settings>  
            <setting name="logImpl" value="STDOUT_LOGGING"/>  
        </settings> 
     
      <environments default="development">
        <environment id="development">
          <transactionManager type="JDBC"/>
          <dataSource type="POOLED">
            <property name="driver" value="${jdbc.driver}"/>
            <property name="url" value="${jdbc.url}"/>
            <property name="username" value="${jdbc.username}"/>
            <property name="password" value="${jdbc.password}"/>
          </dataSource>
        </environment>
      </environments>
      
      
      <mappers>
        <mapper resource="com/mybatis/bean/EmployeeMapper.xml"/>
      </mappers>
    </configuration>

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[Center]: /images/20220601/dd623655757c439f843287c9476aa5c6.png
[Center 1]: /images/20220601/e1983b1d33ad491b9818a4c75e582a84.png