springBoot 如何将properties文件属性配置到class中

springBoot 如何将properties文件属性配置到class中

1.这里创建一个test.properties 文件 有以下属性

com.md.name="\u54DF\u897F"  
com.md.want="\u6211\u662F\u8303\u4FDD\u6797"

2.创建一个propertiesTest.class 文件

package com.example.demo;


import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;

@Configuration //启动容器
@ConfigurationProperties(prefix = "com.md")//properties文件前缀
@PropertySource("classpath:test.properties") //告诉properties文件的名称
public class propertiesTest {
	
	private String name;  //属性名必须与properties文件对应，不对应获取不到值
	private String want;   

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getWane() {
		return wane;
	}

	public void setWane(String wane) {
		this.wane = wane;
	}

 

}

3 . 创建一个controller 获取propertiesTest.class 的值

package com.example.demo.controller;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import com.example.demo.propertiesTest;
@Controller
public class HelloController {
   @Autowired
   propertiesTest propertiesTest;
   @RequestMapping("/")
   @ResponseBody
   public String hello(String name, HttpServletRequest request) {
   	return propertiesTest.getName() + propertiesTest.getWant();
   }

}

浏览器访问出现properties文件属性