使用@Profile注解进行多环境函数设计

<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.tszr</groupId>
    <artifactId>chapter023</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
    </parent>
    
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
    </dependencies>
    
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>11</source>
                    <target>11</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

server.port=8081

server.port=8083

server.port=8082

spring.profiles.active=dev

package com.tszr.service;

public interface DBConectionService {
    public String dbConection();
}

package com.tszr.serviceimpl;

import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;

import com.tszr.service.DBConectionService;

@Configuration
@Profile("dev")
public class DBConectionServicesImpl implements DBConectionService{
    public String dbConection() {
        return "数据库配置环境dev";
    }
}

package com.tszr.serviceimpl;

import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;

import com.tszr.service.DBConectionService;

@Configuration
@Profile("prod")
public class ProdImpl implements DBConectionService{
    public String dbConection() {
        return "数据库配置环境prod";
    }
}

package com.tszr.serviceimpl;

import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;

import com.tszr.service.DBConectionService;

@Configuration
@Profile("test")
public class TestImpl implements DBConectionService{
    public String dbConection() {
        return "数据库配置环境test";
    }
}

package com.tszr.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import com.tszr.service.DBConectionService;

@RestController
public class DBController {
    @Autowired
    private DBConectionService dbConectionService;
    
    @GetMapping("/showDB")
    public String showDB() {
        String str = dbConectionService.dbConection();
        System.out.println(str);
        return str;
    }
}

package com.tszr;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}