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添加2个工具类

shengyang000 před 5 roky
rodič
revize
b2967dd366
1 změnil soubory, kde provedl 93 přidání a 0 odebrání
  1. 93 0
      src/main/java/com/unissoft/utils/SpringUtils.java

+ 93 - 0
src/main/java/com/unissoft/utils/SpringUtils.java

@@ -0,0 +1,93 @@
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+package com.unissoft.utils;
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+
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+import org.springframework.beans.BeansException;
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+import org.springframework.beans.factory.NoSuchBeanDefinitionException;
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+import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
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+import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
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+import org.springframework.stereotype.Repository;
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+
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+@Repository
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+public final class SpringUtils implements BeanFactoryPostProcessor {
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+
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+    private static ConfigurableListableBeanFactory beanFactory; // Spring应用上下文环境
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+
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+    @Override
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+    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
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+        SpringUtils.beanFactory = beanFactory;
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+    }
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+    
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+    public static ConfigurableListableBeanFactory getBeanFactory() {
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+    	return beanFactory;
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+    }
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+
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+    /**
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+     * 获取对象
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+     *
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+     * @param name
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+     * @return Object 一个以所给名字注册的bean的实例
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+     * @throws BeansException
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+     *
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+     */
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+    @SuppressWarnings("unchecked")
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+    public static <T> T getBean(String name) throws BeansException {
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+        return (T) getBeanFactory().getBean(name);
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+    }
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+
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+    /**
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+     * 获取类型为requiredType的对象
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+     *
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+     * @param clz
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+     * @return
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+     * @throws BeansException
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+     *
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+     */
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+    public static <T> T getBean(Class<T> clz) throws BeansException {
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+        T result = (T) getBeanFactory().getBean(clz);
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+        return result;
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+    }
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+
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+    /**
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+     * 如果BeanFactory包含一个与所给名称匹配的bean定义,则返回true
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+     *
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+     * @param name
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+     * @return boolean
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+     */
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+    public static boolean containsBean(String name) {
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+        return getBeanFactory().containsBean(name);
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+    }
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+
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+    /**
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+     * 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)
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+     *
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+     * @param name
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+     * @return boolean
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+     * @throws NoSuchBeanDefinitionException
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+     *
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+     */
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+    public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException {
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+        return getBeanFactory().isSingleton(name);
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+    }
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+
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+    /**
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+     * @param name
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+     * @return Class 注册对象的类型
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+     * @throws NoSuchBeanDefinitionException
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+     *
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+     */
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+    public static Class<?> getType(String name) throws NoSuchBeanDefinitionException {
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+        return getBeanFactory().getType(name);
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+    }
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+
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+    /**
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+     * 如果给定的bean名字在bean定义中有别名,则返回这些别名
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+     *
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+     * @param name
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+     * @return
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+     * @throws NoSuchBeanDefinitionException
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+     *
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+     */
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+    public static String[] getAliases(String name) throws NoSuchBeanDefinitionException {
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+        return getBeanFactory().getAliases(name);
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+    }
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+
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+}