springboot如何获取yml里面的属性值

目录

  • 如何获取yml里面的属性值
    • 开发环境
    • 项目结构
    • pom依赖
    • springboot启动类
    • person.yml
    • person.java
    • Dog.java
    • SpringbootDemoApplicationTests
    • 控制台输出
  • 获取.yml中自定义参数
    • 通过@Value获取
    • 通过@ConfigurationProperties(prefix = "weixinAndAli")注解

如何获取yml里面的属性值
开发环境
  • idea
  • jdk1.8

项目结构
springboot如何获取yml里面的属性值
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pom依赖
4.0.0org.springframework.bootspring-boot-starter-parent2.1.8.RELEASE com.springbootspringboot_demo0.0.1-SNAPSHOTspringboot_demoDemo project for Spring Boot 1.8 org.springframework.bootspring-boot-starter-web org.projectlomboklomboktrueorg.springframework.bootspring-boot-configuration-processortrueorg.springframework.bootspring-boot-starter-testtest org.springframework.bootspring-boot-maven-plugin


springboot启动类
package com.springboot.springboot_demo; import org.springframework.beans.factory.config.YamlPropertiesFactoryBean; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.Bean; import org.springframework.context.support.PropertySourcesPlaceholderConfigurer; import org.springframework.core.io.ClassPathResource; @SpringBootApplicationpublic class SpringbootDemoApplication { public static void main(String[] args) {SpringApplication.run(SpringbootDemoApplication.class, args); }/*** 设置自定义yml位置** @return*/@Beanpublic static PropertySourcesPlaceholderConfigurer properties() {PropertySourcesPlaceholderConfigurer pspc = new PropertySourcesPlaceholderConfigurer(); YamlPropertiesFactoryBean yaml = new YamlPropertiesFactoryBean(); yaml.setResources(new ClassPathResource[] {/** 请求url地址 */new ClassPathResource("config/person.yml")}); pspc.setProperties(yaml.getObject()); return pspc; }}


person.yml
person:lastName: zhangsanage: 18boss: falsebirth: 2017/12/12maps: {k1: v1,k2: v2}lists:- lisi- zhaoliudog:name: 小狗age: 2


person.java
package com.springboot.springboot_demo.pojo; import lombok.Data; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.stereotype.Component; import java.util.Date; import java.util.List; import java.util.Map; /** * 将配置文件中配置的每一个属性的值映射到person * @ConfigurationProperties 告诉springboot 将本类中的值与配置文件中的值绑定 * prefix = "person" 配置文件下的那个属性下的 * 只有这个组件是容器中的组件才能使用@Component */@Data@Component@ConfigurationProperties(prefix = "person")public class Person { private String lastName; private Integer age; private Boolean boss; private Date birth; private Map maps; private List lists; private Dog dog; }

Dog.java
package com.springboot.springboot_demo.pojo; import lombok.Data; @Datapublic class Dog {private String name; private String age; }


SpringbootDemoApplicationTests
package com.springboot.springboot_demo; import com.springboot.springboot_demo.pojo.Person; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; /** * springboot单元测试 */@RunWith(SpringRunner.class)@SpringBootTestpublic class SpringbootDemoApplicationTests { @Autowiredprivate Person person; @Value("${person.lastName}")private String username; @Testpublic void contextLoads() {System.out.println(person); }@Testpublic void personCopy() {System.out.println(username); } }


控制台输出
Person(lastName=zhangsan, age=18, boss=false, birth=Tue Dec 12 00:00:00 CST 2017, maps={k1=v1, k2=v2}, lists=[lisi, zhaoliu], dog=Dog(name=小狗, age=2))
zhangsan

获取.yml中自定义参数 需求:根据不同环境获取到不同的参数,放在.yml中方便修改!
springboot如何获取yml里面的属性值
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在开发环境中,回调的url地址
springboot如何获取yml里面的属性值
文章图片

在测试环境中,回调的url地址
springboot如何获取yml里面的属性值
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在生产环境中,回调的url地址
springboot如何获取yml里面的属性值
文章图片

我是通过2种方式来实现的

通过@Value获取
代码如下
package com.heque.service.pay; import org.springframework.beans.factory.annotation.Value; public abstract class ObtainNotifyUrl {@Value("${weixinAndAli.wechatNotifyUrl}")private String wechatNotifyUrl; @Value("${weixinAndAli.aliNotifyUrl}")private String aliNotifyUrl; public String getWechatNotifyUrl() {return wechatNotifyUrl; }public void setWechatNotifyUrl(String wechatNotifyUrl) {this.wechatNotifyUrl = wechatNotifyUrl; }public String getAliNotifyUrl() {return aliNotifyUrl; }public void setAliNotifyUrl(String aliNotifyUrl) {this.aliNotifyUrl = aliNotifyUrl; }}

package com.heque.service.pay; import org.springframework.stereotype.Component; import lombok.Data; import lombok.EqualsAndHashCode; @Data@EqualsAndHashCode(callSuper = false)@Componentpublic class Test extends ObtainNotifyUrl{}

通过springframework自动包可以完成此功能,需要注意Test继承对象需要加入@component,把对象交给springContainer去管理,我们需要的时候只需注入资源就好了。
@Autowired private Test test; test.getAliNotifyUrl(); /test.getWechatNotifyUrl();


通过@ConfigurationProperties(prefix = "weixinAndAli")注解
代码如下
package com.heque.service.pay; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.stereotype.Component; /** * @author: TimBrian * @date: Sep 10, 2018 9:13:40 AM */@Component@ConfigurationProperties(prefix = "weixinAndAli")public class ConfigUtils {private String wechatNotifyUrl; private String aliNotifyUrl; public String getWechatNotifyUrl() {return this.wechatNotifyUrl; }public void setWechatNotifyUrl(String wechatNotifyUrl) {this.wechatNotifyUrl = wechatNotifyUrl; }public String getAliNotifyUrl() {return aliNotifyUrl; }public void setAliNotifyUrl(String aliNotifyUrl) {this.aliNotifyUrl = aliNotifyUrl; }}

调用和方法一一样的
【springboot如何获取yml里面的属性值】以上为个人经验,希望能给大家一个参考,也希望大家多多支持脚本之家。

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