实现项目的多环境配置的方法有很多,比如通过在Pom.xml中配置profiles(最常见) 然后在Install项目打War包的时候,根据需求打不同环境的包,如图:
这种配置多环境的方法在SSM框架中使用的最多,但在SpringBoot中使用最多的是在启动SpringBoot项目的时候指定运行环境,下面也是主要描述这种配置的方法:
1.添加配置文件
在SpringBoot的Resources目录下建4个配置文件 application.yml、application-dev.yml、application-qa.yml、application-online.yml
dev:开发环境
qa:测试环境
online:生产环境
然后在application.yml配置文件中配置默认的运行环境:
spring:
profiles:
active: dev
然后在dev、qa、online中分别配置不同的配置内容,例如变更端口:
dev
server:
port: 8085
servlet:
context-path: /api
tomcat:
max-threads: 100
connection-timeout: 5000
spring:
profiles: dev
qa
server:
port: 8086
servlet:
context-path: /api
tomcat:
max-threads: 100
connection-timeout: 5000
spring:
profiles: qa
online
server:
port: 8087
servlet:
context-path: /api
tomcat:
max-threads: 100
connection-timeout: 5000
spring:
profiles: online
然后在 SpringBoot系统列 1 - HelloWorld! 的基础上继续添加代码,新建WebConfig用于存放SpringBoot的一些配置信息(SpringBoot的配置即可以在配置文件中配置,也可以在类中配置):
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringBootConfiguration; /**
* 配置类
* @author XIHONGLEI
* @date 2018-10-31
*/
@SpringBootConfiguration
public class WebConfig { @Value("${server.port}")
public String port;
}
然后改造一下HelloContrlller,为了区分环境,我们在请求/api/hello的时候将端口号展示出:
import com.hello.WebConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController; @RestController public class HelloController { @Autowired
private WebConfig webConfig; @RequestMapping("hello")
public String hello() {
return "Hello World! port:".concat(webConfig.port);
}
}
然后在pom.xml配置Jar包的打包配置:
<packaging>jar</packaging>
<build>
<finalName>spring-boot-hello</finalName>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.yml</include>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.yml</include>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<mainClass>com.hello.Application</mainClass>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<configuration>
<encoding>UTF-8</encoding>
<useDefaultDelimiters>true</useDefaultDelimiters>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.18.1</version>
<configuration>
<skipTests>true</skipTests>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
然后Install,找打Jar包 spring-boot-hello.jar;
在Window控制台或者Linux中可以使用java -jar spring-boot-hello.jar来启动SpringBoot项目,然后通过在后方添加--spring.profiles.active来指定启动SpringBoot项目时使用的环境:
# Dev环境
$ java -jar spring-boot-hello.jar --spring.profiles.active=dev # qa环境
$ java -jar spring-boot-hello.jar --spring.profiles.active=qa # online环境
$ java -jar spring-boot-hello.jar --spring.profiles.active=online
例启动Online环境:
然后通过 http://localhost:8087/api/hello 来访问,因为Online中配置的端口是8087
完成!
在IDEA中怎么在运行的时候选定执行环境,可以通过配置Application的program arguments中配置运行环境: