Could not autowire field

最新推荐文章于 2021-02-27 01:34:09 发布

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最新推荐文章于 2021-02-27 01:34:09 发布

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本文链接：https://blog.youkuaiyun.com/j15533415886/article/details/81077811

本文记录了一次解决Spring框架中Autowire注入失败的问题经历。问题出现在自定义的服务类中忘记添加@Service注解导致依赖注入失败。通过查看日志定位错误并添加@Service注解后，问题得以解决。

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昨天完成了任务，今天早上打开程序的时候，突然报错，通过看日志是，autowire注入失败——Could not autowire field，经过排查，原来是Service 成忘记注入@Service了，不该不该啊。

public class WxExhibitionImageService extends BaseService<TExhibitionImage,TExhibitionImageExample> {

    @Autowired
    private TExhibitionImageMapper exhibitionImageMapper;

    @Override
    protected BaseMapper<TExhibitionImage,TExhibitionImageExample> getMapper(){
        return exhibitionImageMapper;
    }
}

解决

@Service
public class WxExhibitionImageService extends BaseService<TExhibitionImage,TExhibitionImageExample> {

    @Autowired
    private TExhibitionImageMapper exhibitionImageMapper;

    @Override
    protected BaseMapper<TExhibitionImage,TExhibitionImageExample> getMapper(){
        return exhibitionImageMapper;
    }
}