springboot使用工具类无需注入获取yml配置项

1.新建 BeanConfiguration 类，用于项目启动构造咱们的工具类

package webapp.config; import org.springframework.beans.factory.config.YamlPropertiesFactoryBean; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.core.io.ClassPathResource; import org.springframework.core.io.Resource; import webapp.util.YamlConfigurerUtil; import java.util.Properties; @Configuration public class BeanConfiguration { @Bean public YamlConfigurerUtil ymlConfigurerUtil() { //1:加载配置文件
        Resource app = new ClassPathResource("application.yml"); YamlPropertiesFactoryBean yamlPropertiesFactoryBean = new YamlPropertiesFactoryBean(); // 2:将加载的配置文件交给 YamlPropertiesFactoryBean
 yamlPropertiesFactoryBean.setResources(app); // 3：将yml转换成 key：val
        Properties properties = yamlPropertiesFactoryBean.getObject(); // 4: 将Properties 经过构造方法交给咱们写的工具类
        YamlConfigurerUtil ymlConfigurerUtil = new YamlConfigurerUtil(properties); return ymlConfigurerUtil; } }

 

2.工具类实现

package webapp.util; import java.util.Properties; public class YamlConfigurerUtil { private static Properties ymlProperties = new Properties(); public YamlConfigurerUtil(Properties properties){ ymlProperties = properties; } public static String getStrYmlVal(String key){ return ymlProperties.getProperty(key); } public static Integer getIntegerYmlVal(String key){ return Integer.valueOf(ymlProperties.getProperty(key)); } }

 

3.调用示例

String password = YamlConfigurerUtil.getStrYmlVal("redis.password");

 

 

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