1

I have an issue while compiling my DocumentManager application in eclipse. it is not getting Hibernate.createBlob(file.getInputStream()) method and giving "The method createBlob(InputStream) is undefined for the type Hibernate". I am using Spring 3 and Hibernate 4 with Maven. Please suggest me some solution. Code below... Thanks

package com.ecom.data.access.controller;

    import java.io.IOException;
    import java.io.OutputStream;
    import java.sql.Blob;
    import java.sql.SQLException;
    import java.util.Map;

    import javax.servlet.http.HttpServletResponse;

    import com.ecom.data.access.dao.DocumentDAO;
    import com.ecom.data.access.model.Document;

    import org.apache.commons.io.IOUtils;
    import org.hibernate.Hibernate;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.multipart.MultipartFile;

    @Controller
    public class DocumentController {

        @Autowired
        private DocumentDAO documentDao;

        @RequestMapping("/index")
        public String index(Map<String, Object> map) {
            try {
                map.put("document", new Document());
                map.put("documentList", documentDao.list());
            }catch(Exception e) {
                e.printStackTrace();
            }

            return "documents";
        }

        @RequestMapping(value = "/save", method = RequestMethod.POST)
        public String save(
                @ModelAttribute("document") Document document,
                @RequestParam("file") MultipartFile file) {


            System.out.println("Name:" + document.getName());
            System.out.println("Desc:" + document.getDescription());
            System.out.println("File:" + file.getName());
            System.out.println("ContentType:" + file.getContentType());

            try {
                Blob blob = Hibernate.createBlob(file.getInputStream());

                document.setFilename(file.getOriginalFilename());
                document.setContent(blob);
                document.setContentType(file.getContentType());
            } catch (IOException e) {
                e.printStackTrace();
            }

            try {
                documentDao.save(document);
            } catch(Exception e) {
                e.printStackTrace();
            }

            return "redirect:/index.html";
        }

        @RequestMapping("/download/{documentId}")
        public String download(@PathVariable("documentId")
                Integer documentId, HttpServletResponse response) {

            Document doc = documentDao.get(documentId);
            try {
                response.setHeader("Content-Disposition", "inline;filename=\"" +doc.getFilename()+ "\"");
                OutputStream out = response.getOutputStream();
                response.setContentType(doc.getContentType());
                IOUtils.copy(doc.getContent().getBinaryStream(), out);
                out.flush();
                out.close();

            } catch (IOException e) {
                e.printStackTrace();
            } catch (SQLException e) {
                e.printStackTrace();
            }


            return null;
        }

        @RequestMapping("/remove/{documentId}")
        public String remove(@PathVariable("documentId")
                Integer documentId) {

            documentDao.remove(documentId);

            return "redirect:/index.html";
        }
    }
4

2 回答 2

6

方法 Hibernate.createBlob() 已弃用，您可以改用 Hibernate.getLobCreator(sessionfactory.getCurrentSession()).createBlob()

于 2013-08-05T09:08:09.683 回答
2

我认为您无法解决该方法，因为它不存在。

在 Hibernate 3 中，有一个与您调用的方法几乎一样的方法，但它有一个额外的整数参数来指定大小。

该方法在 Hibernate 4 中仍然存在，但在不同的地方。您可能想要调用Hibernate.getLobCreator方法，然后在其上使用createBlob方法。

于 2013-07-24T10:48:50.857 回答