java - Spring动态构造函数值

我英文不太好。请理解..

//This is my Spring-mvc-based Controller
@Controller

public class DownloadManageController {
    private DownloadManageService downService;

    @Autowired
    public void setPackService(DownloadManageService downService) {
        this.downService = downService;
    }
}

//This is my Spring-Bean which should have a dynamic value of contructor
Component

public class DownloadManageService {
    private Log log = LogFactory.getLog(DownloadManageService.class);
    private FileAccessObject downloadFileAccessObj = null;

    DownloadManageService(String downloadInfoFile) {
        this.downloadFileAccessObj = new FileAccessObjectImpl(
                "d:/dat/download/" + downloadInfoFile);
    }

}

当Service注入控制器时...我想使downloadInfoFile变量动态取决于请求参数。

最佳答案

我建议您创建一个工厂类，您可以在其中传递所需的路径。