关于@PropertySource配置的用法解析

package org.springframework.context.annotation;

import java.lang.annotation.Documented;

import java.lang.annotation.ElementType;

import java.lang.annotation.Repeatable;

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.lang.annotation.Target;

import org.springframework.core.io.support.PropertySourceFactory;

@Target (ElementType.TYPE)

@Retention (RetentionPolicy.RUNTIME)

@Documented

@Repeatable (PropertySources. class )

public @interface PropertySource {

     /**

      * 属性源的名称

      */

     String name() default "" ;

     /**

      * 属性文件的存放路径

      */

     String[] value();

     /**

      * 如果指定的属性源不存在，是否要忽略这个错误

      */

     boolean ignoreResourceNotFound() default false ;

     /**

      * 属性源的编码格式

      */

     String encoding() default "" ;

     /**

      * 属性源工厂

      */

     Class<? extends PropertySourceFactory> factory() default PropertySourceFactory. class ;

}

demo.name=huang

demo.sex= 1

demo.type=demo

package com.huang.pims.demo.props;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.context.annotation.PropertySource;

import org.springframework.stereotype.Component;

@Component

@PropertySource (value = { "demo/props/demo.properties" })

public class ReadByPropertySourceAndValue {

    @Value ( "${demo.name}" )

    private String name;

    @Value ( "${demo.sex}" )

    private int sex;

    @Value ( "${demo.type}" )

    private String type;

    @Override

    public String toString() {

        return "ReadByPropertySourceAndValue{" +

                "name='" + name + '\ '' +

                ", sex=" + sex +

                ", type='" + type + '\ '' +

                '}' ;

    }

}

package com.huang.pims.demo.props;

import org.springframework.boot.context.properties.ConfigurationProperties;

import org.springframework.context.annotation.PropertySource;

import org.springframework.stereotype.Component;

@Component

@PropertySource (value = { "demo/props/demo.properties" })

@ConfigurationProperties (prefix = "demo" )

public class ReadByPropertySourceAndConfProperties {

    private String name;

    private int sex;

    private String type;

    public void setName(String name) {

        this .name = name;

    }

    public void setSex( int sex) {

        this .sex = sex;

    }

    public void setType(String type) {

        this .type = type;

    }

    public String getName() {

        return name;

    }

    public int getSex() {

        return sex;

    }

    public String getType() {

        return type;

    }

    @Override

    public String toString() {

        return "ReadByPropertySourceAndConfProperties{" +

                "name='" + name + '\ '' +

                ", sex=" + sex +

                ", type='" + type + '\ '' +

                '}' ;

    }

}

package com.huang.pims.demo.runners;

import com.huang.pims.demo.props.*;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.boot.CommandLineRunner;

import org.springframework.stereotype.Component;

@Component

public class OutputPropsRunner implements CommandLineRunner {

    private static final Logger LOGGER = LoggerFactory.getLogger(OutputPropsRunner. class );

    @Autowired

    private ReadByPropertySourceAndValue readByPropertySourceAndValue;

    @Autowired

    private ReadByPropertySourceAndConfProperties readByPropertySourceAndConfProperties;

    @Override

    public void run(String... args) throws Exception {

        LOGGER.info(readByPropertySourceAndValue.toString());

        LOGGER.info(readByPropertySourceAndConfProperties.toString());

    }

}

@PropertySource (value = { "classpath:box.properties" })

# 工具箱配置 

preserveFilePath=/box/webserver/uploadfile/preservefile/

@SpringBootApplication

@PropertySource (value = { "classpath:box.properties" })

public class ToolboxApiApplication {

    public static void main(String[] args) {

        SpringApplication.run(ToolboxApiApplication. class , args);

    } 

}

@RestController

public class DeleteFileController {

    @Value ( "${preserveFilePath}" )

    private String preserveFilePath;

    @GetMapping ( "/deleteFile" )

    public void test(){

        System.out.println(preserveFilePath);

    }

}