【spring boot】使用@Value映射properties文件属性

描述

使用@Value映射properties文件属性到Java字段

重点

• 使用@PropertySource 注解指定*.properties文件位置；
• 使用@Value进行注入；

---

my.properties

book.author=ssslinppp
book.name=spring boot

---

Java类

package com.sssppp;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.PropertySource;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@PropertySource("classpath:my.properties")
public class Ch522 {

	@Value("${book.author}")
	private String bookAuthor;

	@Value("${book.name}")
	private String bookName;

	@RequestMapping("/aa")
	String index() {

		return "book name is:" + bookName + " and book author is:" + bookAuthor;
	}

}