配置多个数据源,spring profile 多环境配置管理
针对生产环境,测试环境,以及本地调试开发有时会配置多套数据库,在一个数据配置文件进行修改,往往有时发布到生成环境会忘记修改,或者本地调试时还是生产环境的库,会导致生产环境数据被污染。
ps--刚开始配完发现在Myeclipse一直是“development”模式,后来发现tomcat配置完之后要myeclise中进行jdk配置。
1.这里我们可以配置多个数据源配置文件:
application.development.properties 作为开发环境;
application.local.properties 作为本地调试环境;
application.properties 作为生产环境;
application.test.properties 作为测试环境;
jdbc.driver=com.mysql.jdbc.Driver #development jdbc.url=jdbc:mysql://ip:port/database?autoReconnect=true&initialTimeout=3&useUnicode=true&characterEncoding=utf-8 jdbc.username=user jdbc.password=password #connection pool settings jdbc.pool.minIdle=1 jdbc.pool.maxIdle=3 jdbc.pool.maxActive=30 jdbc.pool.maxWait=12000
2.然后在applicationContext.xml配置文件中配置对应的数据源:
配置文件有点长,主要是我配置了四个数据源,耐心点看吧- -
<?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:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd" default-lazy-init="true"> <description>Spring公共配置 </description> <context:annotation-config /> <!-- 使用annotation 自动注册bean, 并保证@Required、@Autowired的属性被注入 --> <context:component-scan base-package="com.eteclab.wodm"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> <context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/> </context:component-scan> <!-- Jpa Entity Manager 配置 --> <bean > <property name="dataSource" ref="dataSource"/> <property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter"/> <property name="packagesToScan" value="com.eteclab"/> <property name="jpaProperties"> <props> <!-- 命名规则 My_NAME->MyName --> <prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop> </props> </property> </bean> <bean > <property name="databasePlatform"> <bean factory-method="getDialect" class="org.eteclab.modules.persistence.Hibernates"> <constructor-arg ref="dataSource"/> </bean> </property> </bean> <!-- Spring Data Jpa配置 --> <jpa:repositories base-package="com.eteclab.wodm" transaction-manager-ref="transactionManager" entity-manager-factory-ref="entityManagerFactory"/> <!-- Jpa 事务配置 --> <bean > <property name="entityManagerFactory" ref="entityManagerFactory"/> </bean> <!-- 使用annotation定义事务 --> <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" /> <!-- JSR303 Validator定义 --> <bean /> <!-- production环境 --> <beans profile="production"> <context:property-placeholder ignore-unresolvable="true" location="classpath*:/application.properties"/> <!-- 数据源配置, 使用Tomcat JDBC连接池 --> <bean > <!-- Connection Info --> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 连接数控制与连接归还策略 --> <property name="maxActive" value="${jdbc.pool.maxActive}" /> <property name="maxIdle" value="${jdbc.pool.maxIdle}" /> <property name="minIdle" value="${jdbc.pool.minIdle}" /> <property name="maxWait" value="${jdbc.pool.maxWait}" /> <property name="defaultAutoCommit" value="false" /> <!-- 连接Idle一个小时后超时 --> <property name="timeBetweenEvictionRunsMillis" value="30000" /> <property name="minEvictableIdleTimeMillis" value="30000" /> <!-- 应对网络不稳定的策略 --> <!-- <property name="testOnBorrow" value="true" /> <property name="validationInterval" value="30000" /> <property name="validationQuery" value="select 1 from dual" /> --> <property name="testOnReturn" value="true"></property> <property name="testWhileIdle" value="true"></property> <property name="testOnBorrow" value="true" /> <property name="validationInterval" value="30000" /> <property name="validationQuery" value="select 1 from dual" /> <!-- 应对连接泄漏的策略 --> <property name="removeAbandoned" value="true" /> <property name="removeAbandonedTimeout" value="60" /> </bean> <!-- 数据源配置,使用应用服务器的数据库连接池 --> <!--<jee:jndi-lookup />--> </beans> <!-- local development环境 --> <beans profile="development"> <context:property-placeholder ignore-resource-not-found="true" location="classpath*:/application.development.properties" /> <!-- Tomcat JDBC连接池 --> <bean > <!-- Connection Info --> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 连接数控制与连接归还策略 --> <property name="maxActive" value="${jdbc.pool.maxActive}" /> <property name="maxIdle" value="${jdbc.pool.maxIdle}" /> <property name="minIdle" value="${jdbc.pool.minIdle}" /> <property name="maxWait" value="${jdbc.pool.maxWait}" /> <property name="defaultAutoCommit" value="false" /> <!-- 连接Idle一个小时后超时 --> <property name="timeBetweenEvictionRunsMillis" value="30000" /> <property name="minEvictableIdleTimeMillis" value="30000" /> <!-- 应对网络不稳定的策略 --> <property name="testOnBorrow" value="true" /> <property name="validationInterval" value="30000" /> <property name="validationQuery" value="select 1 from dual" /> <!-- 应对连接泄漏的策略 --> <property name="removeAbandoned" value="true" /> <property name="removeAbandonedTimeout" value="60" /> </bean> </beans> <!-- local test 环境 --> <beans profile="local"> <context:property-placeholder ignore-resource-not-found="true" location="classpath*:/application.local.properties" /> <!-- Tomcat JDBC连接池 --> <bean > <!-- Connection Info --> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 连接数控制与连接归还策略 --> <property name="maxActive" value="${jdbc.pool.maxActive}" /> <property name="maxIdle" value="${jdbc.pool.maxIdle}" /> <property name="minIdle" value="${jdbc.pool.minIdle}" /> <property name="maxWait" value="${jdbc.pool.maxWait}" /> <property name="defaultAutoCommit" value="false" /> <!-- 连接Idle一个小时后超时 --> <property name="timeBetweenEvictionRunsMillis" value="30000" /> <property name="minEvictableIdleTimeMillis" value="30000" /> <!-- 应对网络不稳定的策略 --> <property name="testOnBorrow" value="true" /> <property name="validationInterval" value="30000" /> <property name="validationQuery" value="select 1 from dual" /> <!-- 应对连接泄漏的策略 --> <property name="removeAbandoned" value="true" /> <property name="removeAbandonedTimeout" value="60" /> </bean> </beans> <!-- unit test环境 --> <beans profile="test"> <context:property-placeholder ignore-resource-not-found="true" location="classpath*:/application.test.properties" /> <!-- Tomcat JDBC连接池 --> <bean > <!-- Connection Info --> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 连接数控制与连接归还策略 --> <property name="maxActive" value="${jdbc.pool.maxActive}" /> <property name="maxIdle" value="${jdbc.pool.maxIdle}" /> <property name="minIdle" value="${jdbc.pool.minIdle}" /> <property name="maxWait" value="${jdbc.pool.maxWait}" /> <property name="defaultAutoCommit" value="false" /> <!-- 连接Idle一个小时后超时 --> <property name="timeBetweenEvictionRunsMillis" value="30000" /> <property name="minEvictableIdleTimeMillis" value="30000" /> <!-- 应对网络不稳定的策略 --> <property name="testOnBorrow" value="true" /> <property name="validationInterval" value="30000" /> <property name="validationQuery" value="select 1 from dual" /> <!-- 应对连接泄漏的策略 --> <property name="removeAbandoned" value="true" /> <property name="removeAbandonedTimeout" value="60" /> </bean> </beans> </beans>
3.对tomcat服务器进行修改:
{tomcat_home}
/bin/catalina.bat 或 catalina.sh 以确定tomcat所在服务器的环境
{production, development, local, test}
对于windows操作系统,在catalina.bat的第二行,增加如下的语句
set CATALINA_OPTS=%CATALINA_OPTS% -Dspring.profiles.active="production"
对于linux操作系统,在catalina.sh的第二行,增加如下的语句
CATALINA_OPTS="$CATALINA_OPTS -Dspring.profiles.active="production""
注意这里的"production",只能是{production, development, local, test}中的一个
例如我在我本地开发,使用“local”配置:
还有一步要注意的地方就是在web.xml文件中:
配置默认为开发环境,这样如果新接触项目的开发人员如果本地没有配置tomcat,也不会触及到生产环境。
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这里我们可以在项目中写一个监听类,来监听项目运行时所属的环境:
public class InitConfigListener implements ServletContextListener { public void contextInitialized(ServletContextEvent sce) { //侦测jvm环境,并缓存到全局变量中 String env = System.getProperty("spring.profiles.active"); if(env == null) { Config.ENV = "development"; } else { Config.ENV = env; } System.out.println("=================================================================================================="); System.out.println("The Application "+sce.getServletContext().getServletContextName()+" is running on the environment:" + Config.ENV); System.out.println("=================================================================================================="); } @Override public void contextDestroyed(ServletContextEvent arg0) { } }
public class Config { public static String ENV = "development";//默认开发常量 }
直接启动tomcat看到如下效果:
当然我们更希望是在Myeclise开发工具中启动- -
最后启动tomcat就出来了= =