Java 不使用带Autowire的构造函数的模拟服务

我想编辑此代码以使用mock for services。此代码工作正常：

@Service
public class BinCountryCheckFilterImpl {

    private RiskFilterService riskFilterService;
    private Terminals terminal;

    @Autowired
    public BinCountryCheckFilterImpl(Terminals terminal, RiskFilterService riskFilterService) {  
        this.terminal = terminal;
        this.riskFilterService = riskFilterService;
    }

    public void validateBinCountryCheckFilter(Terminals terminal) throws JAXBException, JsonProcessingException {

        List<RiskFilters> filter_list = riskFilterService.findRiskFiltersByTerminalIdAndType(terminal.getId(), "BinCountryCheckFilter");
    }
}

此代码不起作用：

    @Service
public class BinCountryCheckFilterImpl {

    @Autowired
    @Qualifier("riskFilterService")
    private RiskFilterService riskFilterService;

    public Response validateBinCountryCheckFilter(Merchants merchant, Contracts contract, Terminals terminal,
              PaymentTransaction message, HttpServletRequest request) throws JAXBException, JsonProcessingException {
               ...........

    }

}

由于某种原因，当我运行JUnit测试时，

riskFilterService

为空。有什么方法可以通过JUnit测试正确地实现服务吗？

---

在我的例子中，我不想从构造函数调用

终端，riskFilterService

。

当您使用字段注入而不是构造函数注入时，您必须在测试用例中调用以下语句来初始化模拟（理想情况下是在

之前标记为
@的方法中）

MockitoAnnotations.initMocks（this）；

    @Service
public class BinCountryCheckFilterImpl {

    @Autowired
    @Qualifier("riskFilterService")
    private RiskFilterService riskFilterService;

    public Response validateBinCountryCheckFilter(Merchants merchant, Contracts contract, Terminals terminal,
              PaymentTransaction message, HttpServletRequest request) throws JAXBException, JsonProcessingException {
               ...........

    }

}