一个简单的评价系统,使用的SSM框架。
最近将项目迁移到liunx系统上(deepin 15.4)
IDE是idea
数据库是 mysql
因为想测试docker的功能,将数据库迁移到了docker镜像上,
使用jdbc驱动的方式访问docker的数据库,一切正常。
使用mybatis的数据连接池,访问失败,提示拒绝访问。一直得不到Connection。
非常疑惑
docker开放端口如下:
jdbc.properties 文件内容如下:
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3303/teachercommentdb?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC
jdbc.username=root
jdbc.password=794613
spring-mybatis配置整合文件内容如下:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 自动扫描 -->
<context:component-scan base-package="zyp"/>
<!-- 第一种方式:加载一个properties文件 -->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties"/>
</bean>
<!-- 第二种方式:加载多个properties文件
<bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="locations">
<list>
<value>classpath:jdbc.properties</value>
<value>classpath:common.properties</value>
</list>
</property>
<property name="fileEncoding" value="UTF-8"/>
</bean>
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">
<property name="properties" ref="configProperties"/>
</bean>
-->
<!-- 配置数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<!-- 初始化连接大小 -->
<property name="initialSize" value="${initialSize}"/>
<!-- 连接池最大数量 -->
<property name="maxActive" value="${maxActive}"/>
<!-- 连接池最大空闲 -->
<property name="maxIdle" value="${maxIdle}"/>
<!-- 连接池最小空闲 -->
<property name="minIdle" value="${minIdle}"/>
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="${maxWait}"/>
</bean>
<!-- mybatis和spring完美整合,不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 自动扫描mapping.xml文件 -->
<property name="mapperLocations" value="classpath:zyp/mapping/*.xml"/>
</bean>
<!-- DAO接口所在包名,Spring会自动查找其下的类 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="zyp.dao"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
提示如下错误,但跟网上说明的原因不太一样,不是超时连接,也不是用户名错误等。
Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.)] with root cause
java.net.ConnectException: 拒绝连接 (Connection refused)