SpringMVC是否可以使用相同的 @autowired 多个控制器？

ep6jt1vc 于 2021-07-13 发布在 Java

关注(0)|答案(3)|浏览(356)

假设我们有两个不同的控制器类， AController.java 以及 BController.java .

public class AController {
    @Autowired
    private AdminService adminService;
 }

public class BController {
    @Autowired
    private AdminService adminService;
 }

我不知道这样行不行。
+编辑
adminservice（接口）前三名来自acontroller，另一名来自bcontroller。我对扳机没意见 selectNormalList() 直到我创造 selectCouponByTerm() .

public interface AdminService {

    List<Member> selectNormalList();

    List<Member> selectPartnerList();

    List<Coupon> selectCouponByDate(String date);

    List<Coupon> selectCouponByTerm(String startDate, String endDate);
}

adminserviceimpl（实现接口adminservice的）

@Service
public class AdminServiceImpl implements AdminService{

    @Autowired
    private static AdminDao adminDao;

    @Override
    public List<Member> selectNormalList() {    
        return adminDao.selectNormalList();
    }

    @Override
    public List<Member> selectPartnerList() {
        return adminDao.selectPartnerList();
    }

    @Override
    public List<Coupon> selectCouponByDate(String date) {
        return adminDao.selectCouponByDate(date);
    }

    @Override
    public List<Coupon> selectCouponByTerm(String startDate, String endDate) {
        return adminDao.selectCouponByTerm(startDate, endDate);
    }

}

Java spring

来源：https://stackoverflow.com/questions/67113075/spring-mvc-is-it-possible-same-autowired-with-multiple-controllers

3条答案

按热度按时间

6ojccjat1#

我建议对服务类采用以下方法，即逻辑将引导您采用的结构方式 NULLPointerException ```
@Service
public class AdminServiceImpl implements AdminService{

    private AdminDao adminDao;

    @Autowired
    private AdminService adminService;

     public AdminServiceImpl (AdminDao adminDao){
        this.adminDao= adminDao;

@Override
public List selectNormalList() {
return adminDao.selectNormalList();
}

@Override
public List<Member> selectPartnerList() {
    return adminDao.selectPartnerList();
}

@Override
public List<Coupon> selectCouponByDate(String date) {
    return adminDao.selectCouponByDate(date);
}

@Override
public List<Coupon> selectCouponByTerm(String startDate, String endDate) {
    return adminDao.selectCouponByTerm(startDate, endDate);
}

然后在你的控制器里

@Controller
public class AController {
@Autowired
private AdminService adminService;
}
@Controller
public class BController {
@Autowired
private AdminService adminService;
}