| 提交 | 用户 | 时间 | ||
| 0cceb6 | 1 | package com.jcdm.common.utils.spring; |
| Y | 2 | |
| 3 | import org.springframework.aop.framework.AopContext; | |
| 4 | import org.springframework.beans.BeansException; | |
| 5 | import org.springframework.beans.factory.NoSuchBeanDefinitionException; | |
| 6 | import org.springframework.beans.factory.config.BeanFactoryPostProcessor; | |
| 7 | import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; | |
| 8 | import org.springframework.context.ApplicationContext; | |
| 9 | import org.springframework.context.ApplicationContextAware; | |
| 10 | import org.springframework.stereotype.Component; | |
| 11 | import com.jcdm.common.utils.StringUtils; | |
| 12 | ||
| 13 | /** | |
| 14 | * spring工具类 方便在非spring管理环境中获取bean | |
| 15 | * | |
| 16 | * @author jc | |
| 17 | */ | |
| 18 | @Component | |
| 19 | public final class SpringUtils implements BeanFactoryPostProcessor, ApplicationContextAware | |
| 20 | { | |
| 21 | /** Spring应用上下文环境 */ | |
| 22 | private static ConfigurableListableBeanFactory beanFactory; | |
| 23 | ||
| 24 | private static ApplicationContext applicationContext; | |
| 25 | ||
| 26 | @Override | |
| 27 | public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException | |
| 28 | { | |
| 29 | SpringUtils.beanFactory = beanFactory; | |
| 30 | } | |
| 31 | ||
| 32 | @Override | |
| 33 | public void setApplicationContext(ApplicationContext applicationContext) throws BeansException | |
| 34 | { | |
| 35 | SpringUtils.applicationContext = applicationContext; | |
| 36 | } | |
| 37 | ||
| 38 | /** | |
| 39 | * 获取对象 | |
| 40 | * | |
| 41 | * @param name | |
| 42 | * @return Object 一个以所给名字注册的bean的实例 | |
| 43 | * @throws org.springframework.beans.BeansException | |
| 44 | * | |
| 45 | */ | |
| 46 | @SuppressWarnings("unchecked") | |
| 47 | public static <T> T getBean(String name) throws BeansException | |
| 48 | { | |
| 49 | return (T) beanFactory.getBean(name); | |
| 50 | } | |
| 51 | ||
| 52 | /** | |
| 53 | * 获取类型为requiredType的对象 | |
| 54 | * | |
| 55 | * @param clz | |
| 56 | * @return | |
| 57 | * @throws org.springframework.beans.BeansException | |
| 58 | * | |
| 59 | */ | |
| 60 | public static <T> T getBean(Class<T> clz) throws BeansException | |
| 61 | { | |
| 62 | T result = (T) beanFactory.getBean(clz); | |
| 63 | return result; | |
| 64 | } | |
| 65 | ||
| 66 | /** | |
| 67 | * 如果BeanFactory包含一个与所给名称匹配的bean定义，则返回true | |
| 68 | * | |
| 69 | * @param name | |
| 70 | * @return boolean | |
| 71 | */ | |
| 72 | public static boolean containsBean(String name) | |
| 73 | { | |
| 74 | return beanFactory.containsBean(name); | |
| 75 | } | |
| 76 | ||
| 77 | /** | |
| 78 | * 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） | |
| 79 | * | |
| 80 | * @param name | |
| 81 | * @return boolean | |
| 82 | * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException | |
| 83 | * | |
| 84 | */ | |
| 85 | public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException | |
| 86 | { | |
| 87 | return beanFactory.isSingleton(name); | |
| 88 | } | |
| 89 | ||
| 90 | /** | |
| 91 | * @param name | |
| 92 | * @return Class 注册对象的类型 | |
| 93 | * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException | |
| 94 | * | |
| 95 | */ | |
| 96 | public static Class<?> getType(String name) throws NoSuchBeanDefinitionException | |
| 97 | { | |
| 98 | return beanFactory.getType(name); | |
| 99 | } | |
| 100 | ||
| 101 | /** | |
| 102 | * 如果给定的bean名字在bean定义中有别名，则返回这些别名 | |
| 103 | * | |
| 104 | * @param name | |
| 105 | * @return | |
| 106 | * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException | |
| 107 | * | |
| 108 | */ | |
| 109 | public static String[] getAliases(String name) throws NoSuchBeanDefinitionException | |
| 110 | { | |
| 111 | return beanFactory.getAliases(name); | |
| 112 | } | |
| 113 | ||
| 114 | /** | |
| 115 | * 获取aop代理对象 | |
| 116 | * | |
| 117 | * @param invoker | |
| 118 | * @return | |
| 119 | */ | |
| 120 | @SuppressWarnings("unchecked") | |
| 121 | public static <T> T getAopProxy(T invoker) | |
| 122 | { | |
| 123 | return (T) AopContext.currentProxy(); | |
| 124 | } | |
| 125 | ||
| 126 | /** | |
| 127 | * 获取当前的环境配置，无配置返回null | |
| 128 | * | |
| 129 | * @return 当前的环境配置 | |
| 130 | */ | |
| 131 | public static String[] getActiveProfiles() | |
| 132 | { | |
| 133 | return applicationContext.getEnvironment().getActiveProfiles(); | |
| 134 | } | |
| 135 | ||
| 136 | /** | |
| 137 | * 获取当前的环境配置，当有多个环境配置时，只获取第一个 | |
| 138 | * | |
| 139 | * @return 当前的环境配置 | |
| 140 | */ | |
| 141 | public static String getActiveProfile() | |
| 142 | { | |
| 143 | final String[] activeProfiles = getActiveProfiles(); | |
| 144 | return StringUtils.isNotEmpty(activeProfiles) ? activeProfiles[0] : null; | |
| 145 | } | |
| 146 | ||
| 147 | /** | |
| 148 | * 获取配置文件中的值 | |
| 149 | * | |
| 150 | * @param key 配置文件的key | |
| 151 | * @return 当前的配置文件的值 | |
| 152 | * | |
| 153 | */ | |
| 154 | public static String getRequiredProperty(String key) | |
| 155 | { | |
| 156 | return applicationContext.getEnvironment().getRequiredProperty(key); | |
| 157 | } | |
| 158 | } | |
