在eclipse中编译我的DocumentManager应用程序时遇到问题。它没有得到Hibernate.createBlob(file.getInputStream())方法并且给出了“Hibernate类型的方法createBlob(InputStream)未定义”。我正在使用Spring 3和Hibernate 4与Maven。请给我一些解决方案。代码如下......谢谢
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";
}
}
答案 0 :(得分:6)
方法Hibernate.createBlob()已弃用,您可以使用Hibernate.getLobCreator(sessionfactory.getCurrentSession())。createBlob()而不是
答案 1 :(得分:2)
我认为您无法解决该方法,因为它不存在。
在Hibernate 3中,有一个方法几乎就像你正在调用的那样,但它有一个额外的整数参数来指定大小。
该方法仍然存在于Hibernate 4中,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。