Question

Spring 注入报空指针

public class Test {

@Resource
private OrderService orderService;

public static void main(String[] args) {
// TODO Auto-generated method stub
Test test = new Test();
test.test();
}
public void test(){

Order order=orderService.load("402880e7314688ab01314694edc1001b");
System.out.println(order.getOrderSn());
System.out.println(order.getShipAddress());
}
}报空指针，麻烦您帮忙解决一下

Answer 1

为你的orderService提供set/get方法

Answer 2

applicationcontext.xml 里面要配好
如
<bean id="test" class="com.test">>
<property name=" OrderService" ref=" OrderService"></property>
</bean>

Answer 3

orderService要有set/get方法，如果没有get和set方法，把@Resource改成@Autowired