Java-spring-mvc _ configure the controller file in the upper and lower layers, java-spring-mvc

Source: Internet
Author: User

Java-spring-mvc _ configure the controller file in the upper and lower layers, java-spring-mvc

Download:

1. Configure in spring-mvc (for downloading files below MB)
  1. <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> 
  2. <property name="messageConverters"> 
  3. <list> 
  4. <! -- Configure the download return type -->
  5. <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/> 
  6.  
  7. <bean class="org.springframework.http.converter.StringHttpMessageConverter"> 
  8. <! -- Configure the encoding method -->
  9. <property name="supportedMediaTypes" value="application/json; charset=UTF-8" /> 
  10. </bean> 
  11. </list> 
  12. </property> 
  13. </bean>
Download file code
  1. @ RequestMapping ("/file/{name. rp }")
    Public ResponseEntity <byte []> fileDownLoad (@ PathVariable ("name. rp") String name, HttpServletRequest request, HttpServletResponse response ){
    // @ PathVariable String name,
    // @ RequestParam ("name") String name,
    // System. out. println ("<name>" + name );
    // System. out. println (">>>>>>>>>>>>>>>>>>>>>>>>>>> ");
    ResponseEntity <byte []> re = null;
    Try {
    /**
    * Css, js, json, gif, png, bmp, jpg, ico, doc, docx, xls, xlsx, txt, swf, pdf
    ***/
    // Download to Prevent Static Loading interference
    Feelutile f = new Feelutile ();
    Name = f. getfileformat (name );

    String pathString = "C: \ tempDirectory \" + name;
    File file = new File (pathString );
    HttpHeaders headers = new HttpHeaders ();
    // String filename = URLEncoder. encode (name, "UTF-8"); // to solve Chinese name garbled Problem
    String filename = new String (name. getBytes ("UTF-8"), "UTF-8 ");
    Byte [] by = FileUtils. readFileToByteArray (file );
    Headers. setContentType (MediaType. APPLICATION_OCTET_STREAM );
    // URLEncoder. encode (filename, "UTF-8 ")
    Headers. setContentDispositionFormData ("attachment", filename );
    Headers. setContentLength (by. length );
    Re = new ResponseEntity <byte []> (by, headers, HttpStatus. CREATED );
    } Catch (Exception e ){
    E. printStackTrace ();
    Try {
    Request. getRequestDispatcher ("/error/404.jsp"). forward (request, response );
    } Catch (ServletException e1 ){
    // TODO Auto-generated catch block
    E1.printStackTrace ();
    } Catch (IOException e1 ){
    // TODO Auto-generated catch block
    E1.printStackTrace ();
    }
    }
    Return re;
    }

Upload File: 1 configure in spring-mvc
  1. <! -- 4. file upload Configuration file upload -->
  2.     <bean id="multipartResolver"
  3.         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
  4.         <property name="defaultEncoding">
  5.             <value>UTF-8</value>
  6.         </property>
  7.         <property name="maxUploadSize">
  8.             <value>1048576000</value>
  9.         </property>
  10.         <property name="maxInMemorySize">
  11.             <value>40960</value>
  12.         </property>
  13.     </bean>
 

The code in controller is as follows:


  1. @RequestMapping(value="/upload", method = RequestMethod.POST)
  2.     @ResponseBody
  3.     public Json upload(Doc doc, @RequestParam("uploadFile") CommonsMultipartFile file) {
  4.         Json j = new Json();
  5.         
  6.         try {
  7.             String realpath = this.servletContext.getRealPath("/upload");            
  8.             String uploadFileFileName = file.getOriginalFilename();            
  9.             String uploadFileFileNameWithoutSpace = uploadFileFileName.replaceAll(" ", "");        
  10.             String fileType = uploadFileFileNameWithoutSpace.substring(uploadFileFileNameWithoutSpace.lastIndexOf("."));
  11.             
  12.             File targetFile = new File(realpath+File.separator, uploadFileFileNameWithoutSpace);
  13.             if (targetFile.exists()) {
  14.                 targetFile.delete();
  15.             }
  16.             file.getFileItem().write(targetFile);        
  17.             docService.upload(doc,uploadFileFileNameWithoutSpace);
  18.             
  19.             j.setSuccess(true);
  20.             j.setMsg("Upload manual successfully");
  21.             
  22.         }catch (Exception e) {
  23.             logger.error(ExceptionUtil.getExceptionMessage(e));
  24.             j.setMsg("Upload manual unsuccessfully");
  25.         }
  26.         
  27.         return j;
  28.     }  

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