springboot 加载自定义properties文件（@PropertySource）

桃扇骨 2023-02-24 15:25 55阅读 0赞

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### springboot 加载自定义properties文件（@PropertySOurce） ###

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**相关注解**

**@PropertySource**

@Target({ElementType.TYPE})
    @Retention(RetentionPolicy.RUNTIME)
    @Documented
    @Repeatable(PropertySources.class)
    public @interface PropertySource {
    
        String[] value();    //加载文件位置
    
        String name() default "";
        boolean ignoreResourceNotFound() default false;
        String encoding() default "";
    
        Class<? extends PropertySourceFactory> factory() default PropertySourceFactory.class;
                            //自定义factory，默认不能加载yml文件，可自定义factory
    }

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**示例**

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**属性文件**

![20200709203223835.png][]

**person.properties**

person.name=瓜田李下
    person.age=20

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**pojo 层**

**Person**

@Data
    @Component
    @ConfigurationProperties(prefix = "person")
    @PropertySource(value = {"classpath:properties/person.properties"})
    public class Person {
    
        private String name;
        private Integer age;
    }

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**controller 层**

**HelloController**

@RestController
    public class HelloController {
    
        @Resource
        private Person person;
    
        @RequestMapping("/hello")
        public String hello(){
            System.out.println(person);
    
            return "success";
        }
    }

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**使用测试**

**localhost:8080/hello**

2020-07-09 20:35:22.908  INFO 6488 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
    2020-07-09 20:35:22.952  INFO 6488 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet        : Completed initialization in 43 ms
    Person(name=瓜田李下, age=20)

[20200709203223835.png]: /images/20230209/09f1d6aad27348bf9fd7b8f6821c404c.png