public Object getInstance(Class<?> clz){

	return IocBean.get(clz.getName());

}

public Object MocK(Class<?> clz,Object...objects){

	Map<String, Object> shadow=new HashMap<>();

	shadow.putAll(IocBean);

	for (Object object : objects) {

		 Class<?>[] inf= object.getClass().getInterfaces();

		for (Entry<String, Object> element : shadow.entrySet()) {

			//待注入的类正好是此对象，直接替换，默认object中无注入，或有注入并已经注入

			if (isEquals(inf,object.getClass().getInterfaces())) {

				shadow.put(element.getKey(), object);

				continue;

			}

			//iocbean中有对象含有此对象，则注入

		    Field[] fields = element.getValue().getClass().getDeclaredFields();

		    for (int i = 0; i < fields.length; i++) {

		        Field f = fields[i];

		        //iocbean中对象含有此成员变量，并且成员变量和入参object同接口类型，则更改成员变量

		        if (f.getAnnotation(Inject.class) != null&&isEquals(inf, f.getType().getInterfaces())) {

		            f.setAccessible(true);

		            try {

		                f.set(element.getValue(),object);

		            } catch (Exception e) {

		                e.printStackTrace();

		            }

		        }

		    }

		}

	}

	return shadow.get(clz.getName());

}

public boolean isEquals(Class<?>[] clz1,Class<?>[] clz2){

	for (Class<?> class1 : clz1) {

		for (Class<?> class2 : clz2) {

			if (class1.getName().equals(class2.getName())) {

				return true;

			}

		}

	}

	return false;

}

http://blog.csdn.net/stevenhu_223/article/details/9286121