SpringBoot中ApplicationContextAware獲取上下文

springboot中ApplicationContextAware獲取上下文

package com.system.yunjie.cms.ms.member;

import com.system.yunjie.cms.common.common.interceptor.ParamInterceptor;
import com.system.yunjie.cms.common.common.interceptor.InterceptorConfig;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class SpringUtils implements ApplicationContextAware {
private static ApplicationContext applicationContext = null;

public SpringUtils() {
}

public void setApplicationContext(ApplicationContext arg0) throws BeansException {
if (applicationContext == null) {
applicationContext = arg0;
}

}

public static ApplicationContext getApplicationContext() {
return applicationContext;
}

public static void setAppCtx(ApplicationContext webAppCtx) {
if (webAppCtx != null) {
applicationContext = webAppCtx;
}
}

/**
* 拿到ApplicationContext對象實例后就可以手動獲取Bean的注入實例對象
*/
public static <T> T getBean(Class<T> clazz) {
return getApplicationContext().getBean(clazz);
}

public static <T> T getBean(String name, Class<T> clazz) throws ClassNotFoundException {
return getApplicationContext().getBean(name, clazz);
}

public static final Object getBean(String beanName) {
return getApplicationContext().getBean(beanName);
}

public static final Object getBean(String beanName, String className) throws ClassNotFoundException {
Class clz = Class.forName(className);
return getApplicationContext().getBean(beanName, clz.getClass());
}

public static boolean containsBean(String name) {
return getApplicationContext().containsBean(name);
}

public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException {
return getApplicationContext().isSingleton(name);
}

public static Class<?> getType(String name) throws NoSuchBeanDefinitionException {
return getApplicationContext().getType(name);
}

public static String[] getAliases(String name) throws NoSuchBeanDefinitionException {
return getApplicationContext().getAliases(name);
}

public static void main(String[] args) {
/**
* springboot普通類獲取spring容器中的bean
*
*User UserDao UserImpl,其中UserImpl中有一個獲取User列表的方法getUserList
* 測試方法：
* 測試在springboot中根據UserImpl的Class對象調用getUserList方法獲取用戶列表數據
*/
// ParamInterceptor paramInterceptor1 = SpringUtils.getBean(ParamInterceptor.class);
// System.out.println("------------------------" + paramInterceptor1);
// ParamInterceptor paramInterceptor2 = SpringUtils.getBean(InterceptorConfig.class).getParamInterceptor();
// System.out.println("------------------------" + paramInterceptor2);

// Map param = new HashMap<String,Object>();
// param.put("name","Tom");
// List<User> listUser=SpringUtil.getBean(UserImpl.class).getClass()
// .getDeclaredMethod("getUserList", Map.class)
// .invoke(UserImpl.class,param);

}
}