java获取xml文件中bean（包括自定义）

xml中声明自定义的bean和引入bean<bean name="SpringContextUtil" class="com.shiro.utils.SpringContextUtil" scope="singleton"/>

<bean name="customBean" class="com.shiro.utils.customBean"/>
引入bean中的内容，自定义bean代码随意

package com.shiro.utils;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
* 上下文util
* @author eadela
*
*/
public class SpringContextUtil implements ApplicationContextAware {

private static ApplicationContext applicationContext;

@Override
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
SpringContextUtil.applicationContext = applicationContext;
}

public static ApplicationContext getApplicationContext() {
return applicationContext;
}

public static Object getBean(String name) throws BeansException {
try {
return applicationContext.getBean(name);
} catch (Exception e) {
throw new RuntimeException("获取的Bean不存在！");
}
}

public static <T> T getBean(String name, Class<T> requiredType)
throws BeansException {
return applicationContext.getBean(name, requiredType);
}

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

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

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

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

在需要的地方引入自定义bean
public class CusUtil {

final static CustomBean cus = SpringContextUtil.getBean("customBean", CustomBean.class);
}这样在CusUtil中就可以引用CustomBean 内的内容