将bean注入枚举

Question

我有DataPrepareService为报告准备数据,我有一个包含报告类型的枚举,我需要将ReportService注入Enum或从enum访问ReportService.

我的服务:

@Service
public class DataPrepareService {
    // my service
}

我的枚举:

public enum ReportType {

    REPORT_1("name", "filename"),
    REPORT_2("name", "filename"),
    REPORT_3("name", "filename")

    public abstract Map<String, Object> getSpecificParams();

    public Map<String, Object> getCommonParams(){
        // some code that requires service
    }
}

我试着用

@Autowired
DataPrepareService dataPrepareService;

,但它没有用

如何将我的服务注入枚举？

Answer 1

public enum ReportType {

    REPORT_1("name", "filename"),
    REPORT_2("name", "filename");

    @Component
    public static class ReportTypeServiceInjector {
        @Autowired
        private DataPrepareService dataPrepareService;

        @PostConstruct
        public void postConstruct() {
            for (ReportType rt : EnumSet.allOf(ReportType.class))
               rt.setDataPrepareService(dataPrepareService);
        }
    }

[...]

}

如果你将内部类改为静态,那么周期的回答是有效的,所以春天可以看到它

Answer 2

也许是这样的:

public enum ReportType {
    @Component
    public class ReportTypeServiceInjector {
        @Autowired
        private DataPrepareService dataPrepareService;

        @PostConstruct
        public void postConstruct() {
            for (ReportType rt : EnumSet.allOf(ReportType.class))
               rt.setDataPrepareService(dataPrepareService);
        }
    }

    REPORT_1("name", "filename"),
    REPORT_2("name", "filename"),
    ...
}