spring获取 map bean Published on Sep 25, 2023 in 随笔 with 0 comment ```java package com.jinw.utils.cms; import org.springframework.aop.framework.AopContext; import org.springframework.beans.BeansException; import org.springframework.beans.factory.NoSuchBeanDefinitionException; import org.springframework.beans.factory.config.BeanFactoryPostProcessor; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.boot.system.ApplicationHome; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.stereotype.Component; import java.io.File; import java.io.FileNotFoundException; import java.net.URISyntaxException; import java.util.Map; /** * spring工具类 方便在非spring管理环境中获取bean * * @author ruoyi */ @Component public final class CmsSpringUtils implements BeanFactoryPostProcessor, ApplicationContextAware { /** * Spring应用上下文环境 */ private static ConfigurableListableBeanFactory beanFactory; private static ApplicationContext applicationContext; /** * 获取对象 * * @param name * @return Object 一个以所给名字注册的bean的实例 * @throws org.springframework.beans.BeansException */ @SuppressWarnings("unchecked") public static T getBean(String name) throws BeansException { return (T) beanFactory.getBean(name); } /** * 获取类型为requiredType的对象 * * @param clz * @return * @throws org.springframework.beans.BeansException */ public static T getBean(Class clz) throws BeansException { T result = (T) beanFactory.getBean(clz); return result; } public static Map getBeanMap(Class claz) { return beanFactory.getBeansOfType(claz); } /** * 如果BeanFactory包含一个与所给名称匹配的bean定义,则返回true * * @param name * @return boolean */ public static boolean containsBean(String name) { return beanFactory.containsBean(name); } /** * 判断以给定名字注册的bean定义是一个singleton还是一个prototype。 * 如果与给定名字相应的bean定义没有被找到,将会抛出一个异常(NoSuchBeanDefinitionException) * * @param name * @return boolean * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException */ public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException { return beanFactory.isSingleton(name); } /** * @param name * @return Class 注册对象的类型 * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException */ public static Class> getType(String name) throws NoSuchBeanDefinitionException { return beanFactory.getType(name); } /** * 如果给定的bean名字在bean定义中有别名,则返回这些别名 * * @param name * @return * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException */ public static String[] getAliases(String name) throws NoSuchBeanDefinitionException { return beanFactory.getAliases(name); } /** * 获取aop代理对象 * * @param invoker * @return */ @SuppressWarnings("unchecked") public static T getAopProxy(T invoker) { return (T) AopContext.currentProxy(); } /** * 获取当前的环境配置,无配置返回null * * @return 当前的环境配置 */ public static String[] getActiveProfiles() { return applicationContext.getEnvironment().getActiveProfiles(); } /** * 获取当前的环境配置,当有多个环境配置时,只获取第一个 * * @return 当前的环境配置 */ public static String getActiveProfile() { final String[] activeProfiles = getActiveProfiles(); return StringUtils.isNotEmpty(activeProfiles) ? activeProfiles[0] : null; } /** * 获取配置文件中的值 * * @param key 配置文件的key * @return 当前的配置文件的值 */ public static String getRequiredProperty(String key) { return applicationContext.getEnvironment().getRequiredProperty(key); } /** * 获取应用当前所在目录 * * @return * @throws FileNotFoundException * @throws URISyntaxException */ public static String getAppParentDirectory() { ApplicationHome applicationHome = new ApplicationHome(CmsSpringUtils.class); File applicationDir = applicationHome.getSource(); String[] activeProfiles = applicationContext.getEnvironment().getActiveProfiles(); if (ArrayUtils.indexOf("dev", activeProfiles) > -1) { String dirPath = FileExUtils.normalizePath(applicationHome.getSource().getAbsolutePath()); applicationDir = new File(StringUtils.substringBefore(dirPath, "/kingow-oa/")); } String dir = FileExUtils.normalizePath(applicationDir.getParentFile().getAbsolutePath()); if (dir.indexOf("/BOOT-INF/lib") > -1) { dir = StringUtils.substringBefore(dir, "/BOOT-INF/lib"); } return dir; } @Override public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException { CmsSpringUtils.beanFactory = beanFactory; } @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { CmsSpringUtils.applicationContext = applicationContext; } } ``` 本文由 admin 创作,采用 知识共享署名4.0 国际许可协议进行许可。本站文章除注明转载/出处外,均为本站原创或翻译,转载前请务必署名。