maven的profile实现配置的分离

偏执的太偏执、 2022-08-06 07:27 85阅读 0赞

在实际的开发中，如果需要

开发的时候，一套配置、测试的时候，一套配置、上线的时候又是一套配置。彼此修改，互不干涉

此时，就可以使用maven的profile

具体做法如下：

一：新建一个maven项目

二：在resources目录里面，新建dev、test、production三个目录，代表三种环境的配置文件，项目结构图如下：

![Center][]

三：分别在dev, test, production里面新建文件：application.properties，分别配置好各自的环境

比如说我这里的配置为：

dev/application.properties

spring.datasource.driverClassName=org.postgresql.Driver  
spring.datasource.url=jdbc:postgresql://127.0.0.1/ods\_sdp\_development

test/application.properties

spring.datasource.driverClassName=org.postgresql.Driver  
spring.datasource.url=jdbc:postgresql://10.4.18.100/ods\_sdp\_test

production/application.properties

spring.datasource.driverClassName=org.postgresql.Driver  
spring.datasource.url=jdbc:postgresql://10.4.18.4/ods\_sdp\_production

四：配置pom.xml文件：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    
    	<groupId>com.lala</groupId>
    	<artifactId>profile</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<packaging>jar</packaging>
    
    	<name>profile</name>
    	<url>http://maven.apache.org</url>
    
    	<properties>
    		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    	</properties>
    
    	<dependencies>
    		<dependency>
    			<groupId>junit</groupId>
    			<artifactId>junit</artifactId>
    			<version>4.10</version>
    			<scope>test</scope>
    		</dependency>
    	</dependencies>
    
    	<profiles>
    
    		<profile>
    			<id>dev</id>
    			<properties>
    				<env>dev</env>
    			</properties>
    			<activation>
    				<activeByDefault>true</activeByDefault>
    			</activation>
    		</profile>
    
    		
    		<profile>
    			<id>test</id>
    			<properties>
    				<env>test</env>
    			</properties>
    		</profile>
    
    		
    		<profile>
    			<id>production</id>
    			<properties>
    				<env>production</env>
    			</properties>
    		</profile>
    
    	</profiles>
    
    	<build>
    	
    		<resources>
    			<resource>
    				<directory>${project.basedir}/src/main/resources/${env}</directory>
    				<includes>
    					<include>*.*</include>
    				</includes>
    				<filtering>true</filtering>
    			</resource>
    			<resource>
    				<directory>${project.basedir}/src/main/resources/</directory>
    				<includes>
    					<include>logback.xml</include>
    				</includes>
    				<filtering>true</filtering>
    			</resource>
    		</resources>
    		
    		<plugins>
    			<plugin>
    				<artifactId>maven-compiler-plugin</artifactId>
    				<version>3.2</version>
    				<configuration>
    					<source>1.7</source>
    					<target>1.7</target>
    				</configuration>
    			</plugin>
    		</plugins>
    	</build>
    
    </project>

五：写一个java文件，测试环境

com.lala.profile.App

package com.lala.profile;
    
    import java.io.BufferedReader;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    public class App 
    {
        public static void main( String[] args )throws Exception
        {
        	ClassLoader cl = Thread.currentThread().getContextClassLoader();
        	
        	InputStream input = cl.getResourceAsStream("application.properties");
        	
        	InputStreamReader isr = new InputStreamReader(input);
        	
        	BufferedReader br = new BufferedReader(isr);
        	
        	String str = null;
        	
        	while( (str = br.readLine()) != null)
        	{
        		System.out.println(str);
        	}
            
        	br.close();
        	isr.close();
        	input.close();
        }
    }

六：打包，测试

如果要测试 测试环境，则

mvn clean

mvn package -Ptest

\[ly@lypc profile\]$ java -cp target/profile-0.0.1-SNAPSHOT.jar com.lala.profile.App  
spring.datasource.driverClassName=org.postgresql.Driver  
spring.datasource.url=jdbc:postgresql://10.4.18.100/ods\_sdp\_test

生产环境测试

mvn clean

mvn package -Pproduction

[Center]: /images/20220806/ab6e9a6d7dd146ea9b533c80b88dc87a.png