java.lang.ExceptionInInitializerError at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Nat
我做的是Spring 事務的傳播行為的時候報瞭如下錯誤
java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [cn.com.day04.BookShopListImpl] is defined: expected single bean but found 0:
這是因為存在著兩個類的型別都是一樣的,無法知道到底指定的是哪個,所以需要重新命名
我的情況是一個介面類BookShopList,一個實現類BookShopListImpl,
我在bean裡面呼叫BookShopListImpl類的時候
錯誤程式碼如下:
private static BookShopListImpl bookShop=null;
static {
ioc = new ClassPathXmlApplicationContext("bean-jdbc.xml");
bookShop=ioc.getBean(BookShopListImpl.class);
}
正確的程式碼
private static BookShopList bookShop=null;
static {
ioc = new ClassPathXmlApplicationContext("bean-jdbc.xml");
bookShop=ioc.getBean(BookShopList.class);
}
但是我就是覺得奇怪,介面的類是BookShopList
有知道的希望可以留言評論