1、确保依赖
<dependency>
<groupId> org.springframework.boot </groupId>
<artifactId> spring-boot-configuration-processor </artifactId>
<optional> true </optional>
</dependency>
2、配置类编写，注意注解
package com.detech.qydxxpt;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
/**
* @author YunguiZheng
*/
@ConfigurationProperties(prefix = SmsProperties.PREFIX)
@Data
public class SmsProperties {
public static final String PREFIX ="sms" ;
/**
* 服务地址
*/
public String url ;
/**
* 用户名
*/
public String username;
/**
* 密码
*/
public String password ;
/**
* 固定字符串
*/
public String key ;
/**
* 接入KEY
*/
public String jrKey ;
/**
* 业务代码
*/
public String ywdm ;
}
3、重要：在启动类上打上注解
@EnableConfigurationProperties(SmsProperties.class)
package com.dflzm.user;
import com.detech.qydxxpt.SmsProperties;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
@SpringBootApplication
@EnableConfigurationProperties(SmsProperties.class)
public class ApiUserCenterApplication {
public static void main(String[] args) {
SpringApplication.run(ApiUserCenterApplication.class, args);
}
}
4、配置文件yml格式如下
sms: url: http://xxx.com username: xxx password: xxx key: 6798FEB3-71E5-48B6-A49B-1E1F33BAA14B jrKey: "0000088" ywdm: xxx
5、测试是否配置成功
package com.dflzm.user;
import com.detech.qydxxpt.SmsProperties;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import javax.annotation.Resource;
@RunWith(SpringRunner.class)
@SpringBootTest
public class ApiUserCenterApplicationTests {
@Resource
SmsProperties smsProperties;
@Test
public void contextLoads() {
System.err.println(smsProperties.toString());
}
}
输出：
[2020-06-16 10:26:44] [INFO ][com.alibaba.nacos.client.naming:61]-- [LISTENER] adding DEFAULT_GROUP@@dflzm-backend-service with to listener map SmsProperties(url=http:xxx, username=xxx, password=xxx, key=6798FEB3-71E5-48B6-A49B-1E1F33BAA14B, jrKey=xxx, ywdm=xxx)
参考：
https://www.cnblogs.com/Guhongying/p/10848251.html
springboot 将配置文件中的配置读取为properties配置类
原文：https://www.cnblogs.com/irobotzz/p/13139618.html