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