使用maven profile指定配置文件打包适用多环境

1.新建maven项目,   在pom.xml中添加 profile节点信息以下:

<profiles>
		<profile>
			<!-- 开发环境 -->
			<id>dev</id>
			<properties>
				<environment>development</environment><!-- 节点名字environment是本身随意取的 -->
			</properties>
			<activation>
				<activeByDefault>true</activeByDefault><!-- 默认激活该profile节点-->
			</activation>
		</profile>
		<profile>
			<!-- 测试环境 -->
			<id>test</id>
			<properties>
				<environment>test</environment>
			</properties>
		</profile>
		<profile>
			<!-- 预演环境 -->
			<id>prev</id>
			<properties>
				<environment>preview</environment>
			</properties>
		</profile>
		<profile>
			<!-- 生产环境 -->
			<id>prod</id>
			<properties>
				<environment>production</environment>
			</properties>
		</profile>
</profiles>

 2. 在项目中添加各环境须要的数据源配置文件,分不一样目录存放, 分别是开发,测试, 预演,生产  环境. 以下图左边部分所示.  

3. pom.xml中配置resource节点信息.

<build>			
		<resources>
			<resource>
				<directory>src/main/resources</directory>
				<excludes>
					<exclude>environment/development/*</exclude>  
					<exclude>environment/test/*</exclude>  
					<exclude>environment/preview/*</exclude>  
                	<exclude>environment/production/**</exclude>
				</excludes>
			</resource>
			<resource>
				<directory>src/main/resources/environment/${environment}</directory>
				<targetPath>environment/${environment}</targetPath>
			</resource>
		</resources>
	</build>

resource节点信息解释: 

<directory>src/main/resources</directory> <!--打包时包含src/main/resources目录下全部"子"文件 和 "孙"文件.如config 和environment -->
<exclude>environment/development/**</exclude> <!--打包时排除src/main/resources/environment/development下全部"子"文件 和 "孙"文件.-->
<exclude>environment/test/**</exclude> <!--打包时排除src/main/resources/environment/test下全部"子"文件 和 "孙"文件.-->
<exclude>environment/preview/**</exclude> <!--打包时排除src/main/resources/environment/preview下全部"子"文件 和 "孙"文件.-->
<exclude>environment/production/**</exclude><!--打包时排除src/main/resources/environment/production下全部"子"文件 和 "孙"文件.-->
<!-- 注意点: 若是写一个心号*, 如<exclude>environment/development/*</exclude> 则表示:打包时排除src/main/resources/environment/development下全部"子"文件, 不排除"孙"文件, 如上一个截图所示.-->
<!-- 以上配置优先度从上到下 递增, 这就达到目的: config目录下的配置各环境都须要, 而其它环境相关的配置只会有一个目录被打包--->

<directory>src/main/resources/environment/${environment}</directory> <!-- 打包时包含src/main/resources/environment/${environment}下全部"子"文件,environment变量值来自profile中赋值 -->
<targetPath>environment/${environment}</targetPath><!--指定src/main/resources/environment/${environment}全部"子文件" 打包 到包的哪一个目录 -->

4.  项目打包.   打包命令mvn package -Pdev来指定激活id为 dev 的profile节点, 这样, 开发环境配置文件就会被打包.
开发: mvn package -Pdev (由于配置了默认激活dev部分, 因此也能够使用mvn package, 这与 mvn package -Pdev 效果相同)
测试: mvn package -Ptest
预演:mvn package -Pprev
生产:mvn package -Pprod

 

除此方法外动态的指定配置文件咱们还能够使用ClassPathXmlApplicationContext

1.建立一个xml文件config.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://www.springframework.org/schema/beans"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">
    <!--配置文件对象，id是惟一标识，class是对应的配置类，property是配置字段-->
	<bean id="test" class="flink_job.omega_navigation_filter.object.Config">
		<property name="source_kafka_topic_1" value="topic1" />
		<property name="source_kafka_server_1" value="bigdata-swan:9092" />
		<property name="source_kafka_group_id_1" value="ora_log_20171031" />
		<property name="source_kafka_offset_1" value="latest" />
		<property name="output_kafka_topic" value="w_omega_stat_native_fmt" />
		<property name="output_kafka_server" value="bigdata-swan:9092" />
		
	</bean>
   <bean id="local" class="flink_job.omega_navigation_filter.object.Config">
		<property name="source_kafka_topic_1" value="topic1" />
		<property name="source_kafka_server_1" value="bigdata-swan:9092" />
		<property name="source_kafka_group_id_1" value="ora_log_20171031" />
		<property name="source_kafka_offset_1" value="latest" />
		<property name="output_kafka_topic" value="w_omega_stat_native_fmt" />
		<property name="output_kafka_server" value="bigdata-swan:9092" />
		
	</bean>
</beans>

2.建立对应的配置类config

public class Config implements Serializable{
	private static final long serialVersionUID = 1L;
	private String source_kafka_topic_1;
	private String source_kafka_server_1;
	private String source_kafka_group_id_1;
	private String source_kafka_offset_1;
	private String source_kafka_topic_2;
	private String source_kafka_server_2;
	private String source_kafka_group_id_2;
	private String source_kafka_offset_2;
	private String output_kafka_topic;
	private String output_kafka_server;
	
	public static long getSerialversionuid() {
		return serialVersionUID;
	}
	public String getSource_kafka_topic_1() {
		return source_kafka_topic_1;
	}
	public void setSource_kafka_topic_1(String source_kafka_topic_1) {
		this.source_kafka_topic_1 = source_kafka_topic_1;
	}
	public String getSource_kafka_server_1() {
		return source_kafka_server_1;
	}
	public void setSource_kafka_server_1(String source_kafka_server_1) {
		this.source_kafka_server_1 = source_kafka_server_1;
	}
	public String getSource_kafka_group_id_1() {
		return source_kafka_group_id_1;
	}
	public void setSource_kafka_group_id_1(String source_kafka_group_id_1) {
		this.source_kafka_group_id_1 = source_kafka_group_id_1;
	}
	public String getSource_kafka_offset_1() {
		return source_kafka_offset_1;
	}
	public void setSource_kafka_offset_1(String source_kafka_offset_1) {
		this.source_kafka_offset_1 = source_kafka_offset_1;
	}
	public String getSource_kafka_topic_2() {
		return source_kafka_topic_2;
	}
	public void setSource_kafka_topic_2(String source_kafka_topic_2) {
		this.source_kafka_topic_2 = source_kafka_topic_2;
	}
	public String getSource_kafka_server_2() {
		return source_kafka_server_2;
	}
	public void setSource_kafka_server_2(String source_kafka_server_2) {
		this.source_kafka_server_2 = source_kafka_server_2;
	}
	public String getSource_kafka_group_id_2() {
		return source_kafka_group_id_2;
	}
	public void setSource_kafka_group_id_2(String source_kafka_group_id_2) {
		this.source_kafka_group_id_2 = source_kafka_group_id_2;
	}
	public String getSource_kafka_offset_2() {
		return source_kafka_offset_2;
	}
	public void setSource_kafka_offset_2(String source_kafka_offset_2) {
		this.source_kafka_offset_2 = source_kafka_offset_2;
	}
	public String getOutput_kafka_topic() {
		return output_kafka_topic;
	}
	public void setOutput_kafka_topic(String output_kafka_topic) {
		this.output_kafka_topic = output_kafka_topic;
	}
	public String getOutput_kafka_server() {
		return output_kafka_server;
	}
	public void setOutput_kafka_server(String output_kafka_server) {
		this.output_kafka_server = output_kafka_server;
	}
	
}

3.程序中指定调用的配置对象的id

public static ApplicationContext ctx = new ClassPathXmlApplicationContext("config.xml");
	public static Config co = (Config) ctx.getBean("test");

这样咱们就能获取对应的字段