Spring profile注解

心已赠人 2021-10-29 08:46 293阅读 0赞

@Profile的作用：  Spring容器根据标识激活对应的profile注解，其关联的bean才会被注册到容器中。最常见的用途是区分开发环境，测试环境，生产环境信息

//配置文件DataSource.properties
    
    dev.url="localhost"
    dev.name="admin"
    dev.pwd="123456"
    
    test.url="151.125.33.62"
    test.name="admin"
    test.pwd="admin"
    
    
    //对应开发环境信息
    public class DevBean {
    
        @Value("${dev.url}")
        private String url;
    
        @Value("${dev.name}")
        private String name;
    
        @Value("${dev.pwd}")
        private String pwd;
    
        @Override
        public String toString() {
            return "DevBean{
         " +
                    "url='" + url + '\'' +
                    ", name='" + name + '\'' +
                    ", pwd='" + pwd + '\'' +
                    '}';
        }
    }
    
    //对应测试环境信息
    public class TestBean {
    
        @Value("${test.url}")
        private String url;
    
        @Value("${test.name}")
        private String name;
    
        @Value("${test.pwd}")
        private String pwd;
    
        @Override
        public String toString() {
            return "TestBean{
         " +
                    "url='" + url + '\'' +
                    ", name='" + name + '\'' +
                    ", pwd='" + pwd + '\'' +
                    '}';
        }
    }
    
    
    
    @Configuration
    @PropertySource("classpath:com/edu/profile/DataSource.properties")
    public class Config {
    
        @Bean("devBean")
        @Profile("dev")
        public DevBean getDevBean(){
            return new DevBean();
        }
    
        @Bean("testBean")
        @Profile("test")
        public TestBean getTestBean(){
            return new TestBean();
        }
    
    
    
    }
    
    
    
    public class Test {
    
        public static void main(String[] args) {
    
            AnnotationConfigApplicationContext annotationConfigApplicationContext = new AnnotationConfigApplicationContext();
            annotationConfigApplicationContext.getEnvironment().setActiveProfiles("test"); //指定激活目标
            annotationConfigApplicationContext.register(Config.class);
            annotationConfigApplicationContext.refresh();
    
    
            if(annotationConfigApplicationContext.containsBean("testBean")){
                System.out.println("contains testBean");
                TestBean testBean = annotationConfigApplicationContext.getBean(TestBean.class);
                System.out.println(testBean);
            }
    
            if(annotationConfigApplicationContext.containsBean("devBean")){
                System.out.println("contains devBean");
                DevBean devBean = annotationConfigApplicationContext.getBean(DevBean.class);
                System.out.println(devBean);
            }
    
    
            annotationConfigApplicationContext.close();
    
    
        }
    }

转载于:https://www.cnblogs.com/chenzhubing/p/11199926.html