springboot 加载配置信息（静态）

淡淡的烟草味﹌ 2023-10-04 14:21 11阅读 0赞

举例：动态设置验证码过期时间

application-uat.properties配置（文件路径：/src/main/resources/application-uat.properties）

CAPTCHA_CODE_TIME=43200

将配置文件加载到spring容器

import org.springframework.context.annotation.PropertySource;
    
    @PropertySource(value = {"classpath:application-uat.properties"})

获取配置常量类

/**
     * 
     * @title:  动态加载配置信息工具类
     * @author: wll
     * @since:  2021-5-25 14:58:45
     */
    public class SpingHolderConstant {
    
    	public static final String CAPTCHA_CODE_TIME = SpringHolder.getProperty("CAPTCHA_CODE_TIME", String.class);
    
    }

使用方法：

String captchaCodeTime = SpingHolderConstant.CAPTCHA_CODE_TIME;

工具类：SpringHolderUtils

import java.util.Map;
    
    import org.springframework.beans.BeansException;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ApplicationContextAware;
    import org.springframework.core.env.Environment;
    import org.springframework.stereotype.Component;
    
    
    /**
     * 
     * @title:  spring ApplicationContext 工具类
     * @author: wll
     * @since:  2021-5-25 15:05:15
     */
    @Component
    public class SpringHolderUtils implements ApplicationContextAware{
    	private static ApplicationContext applicationContext;
    
    	@Override
    	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
    		SpringHolderUtils.applicationContext = applicationContext;
    	}
    	
    	public static ApplicationContext getApplicationContext(){
    		return applicationContext;
    	}
    	
    	public static Environment getEnv(){
    		return applicationContext.getEnvironment();
    	}
    	
    	public static <T> T getBean(Class<T> clzz){
    		return applicationContext.getBean(clzz);
    	}
    	
    	public static Object getBean(String name){
    		return applicationContext.getBean(name);
    	}
    	
    	public static <T> T getBean(String name,Class<T> clzz){
    		return applicationContext.getBean(name, clzz);
    	}
    	
    	public static <T> Map<String, T> getBeansOfType(Class<T> clzz){
    		return applicationContext.getBeansOfType(clzz);
    	}
    	
    	
    	public static <T> T getProperty(String key,Class<T> clzz){
    		return getEnv().getProperty(key, clzz);
    	}
    	
    	public static <T> T getProperty(String key, T defaultValue,Class<T> clzz){
    		return getEnv().getProperty(key, clzz, defaultValue);
    	}
    
    }