介绍
开发部署时涉及到打包。但通常我们的开发环境、测试环境、正式环境都是分开的。在部署的时候就要特别小心。这里提供一种思路：在项目中配置多套环境，多个配置文件。要部署到不同的环境时，使用不同的配置文件打包。
构建
pom.xml 中添加:
<profiles>
<!-- 开发环境 -->
<profile>
<id>dev</id>
<properties>
<spring.profiles.active>dev</spring.profiles.active>
</properties>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
</profile>
<!-- 测试 -->
<profile>
<id>test</id>
<properties>
<spring.profiles.active>test</spring.profiles.active>
</properties>
</profile>
<!-- 发布 -->
<profile>
<id>release</id>
<properties>
<spring.profiles.active>release</spring.profiles.active>
</properties>
</profile>
</profiles>
<!--spring boot打包指定一个唯一的入口-->
<build>
<plugins>
<!--多环境处理-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>${maven-resources-plugin.version}</version>
<executions>
<execution>
<id>default-resources</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>target/classes</outputDirectory>
<useDefaultDelimiters>false</useDefaultDelimiters>
<delimiters>
<delimiter>#</delimiter>
</delimiters>
<resources>
<resource>
<directory>src/main/resources/</directory>
<filtering>true</filtering>
<includes>
<include>**/*.xml</include>
<include>**/*.yml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources/</directory>
<filtering>false</filtering>
<excludes>
<exclude>**/*.xml</exclude>
<exclude>**/*.yml</exclude>
</excludes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
</build>
这里定义了三种环境。将对应三个配置文件。并且在 plugins 里加了上多环境处理插件。
在项目的 src/main/resource 目录下有四个文件：
application.yml, 这个是公共的配置。不管需要哪个环境，该文件都会被加载，所以可以放一些能用的，不会随环境切换变化的配置。内容可能如下：
server:
port: 8080
spring:
profiles:
active: #spring.profiles.active#
thymeleaf:
prefix: classpath:/templates/
datasource:
name: ga
driver-class-name: com.mysql.jdbc.Driver
type: com.alibaba.druid.pool.DruidDataSource
filters: stat
maxActive: 20
initialSize: 1
maxWait: 60000
minIdle: 1
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: select 'x'
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
maxOpenPreparedStatements: 20
servlet:
multipart:
max-file-size: 50MB
max-request-size: 50MB
mybatis:
mapper-locations: classpath:mapper/*.xml
type-aliases-package: com.gongan.model
pagehelper:
helper-dialect: mysql
reasonable: true
support-methods-arguments: true
params: count=countSql
logging:
level:
root: info
com.gongan.dao : debug
weblogPath: ${logging.path}/demo.log
httpHeaderName: Authorization
fileUploadSize: 31457280
其它三套环境则对应不同的配置文件：
application-dev.yml
spring:
datasource:
url: jdbc:mysql://172.27.100.105/ga
username: root
password: 123456
data:
neo4j:
uri: http://172.27.100.105:7474
username: neo4j
password: 123456
filePath: /Users/sunyu/Documents/log/insight
filePath1: /Users/sunyu/Documents/log/insight/data/
csvPath: /Users/sunyu/Developer/bigdata
logging:
file: /Users/sunyu/Documents/log/demo.log
logging.path: /Users/sunyu/Documents/log/insight/log
application-test.yml
spring:
datasource:
url: jdbc:mysql://localhost/ga
username: root
password: 123456
data:
neo4j:
uri: http://localhost:7474
username: neo4j
password: 123456
filePath: D:\insight\log
filePath1: D:\insight\fileupload
csvPath: D:\insight\neo4j-community-3.4.10\import
logging:
file: D:\insight\log\demo.log
logging.path: D:\insight\log
application-release
spring:
datasource:
url: jdbc:mysql://172.27.100.113/ga
username: root
password: 123456
data:
neo4j:
uri: http://192.168.100.113:7474
username: neo4j
password: 123456
filePath: /Users/sunyu/Documents/log/insight
filePath1: /Users/sunyu/Documents/log/insight/data/
csvPath: /Users/sunyu/Developer/bigdata
logging:
file: /Users/sunyu/Documents/log/demo.log
logging.path: /Users/sunyu/Documents/log/insight/log
打包时，可以使用命令参数打对应的包：
mvn package -Ptest
mvn package -Prelease
本地 debug 也可以启动不同的环境:
这里 -Dspring.profiles.active=dev里 spring.profiles.active的值就是 application.yml 里这一项配置的值: spring.profiles.active: #spring.profiles.active#
也就是说，我们也可以通过改这里的配置进行打包时的环境配置。