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  • 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 id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
    		<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 id="hibernateJpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
    		<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 id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    		<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 id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />
    	
    	<!-- 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 id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close">
    			<!-- 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 id="dataSource" jndi-name="java:comp/env/jdbc/ExampleDB" />-->
    	</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 id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close">
    			<!-- 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 id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close">
    			<!-- 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 id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close">
    			<!-- 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。

    *************************************************************************************************

    *************************************************************************************************

    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= =

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  • 原文地址:https://www.cnblogs.com/SimonHu1993/p/7451612.html
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