Question

这个问题可能对大家来说都是愚蠢的，但是我从1周开始就想办法解决我的spring-boot应用程序中的一个问题。

我开发了一个API来读取由许多客户端发送的多部分文件。

我通过邮递员测试了api，从而获得了预期的结果，但是当我从客户端调用API时，它甚至没有到达spring boot控制器。

这是我的代码在springboot中的样子

@RestController

@RequestMapping("/v2")

public class PDFExtractController {

private static final long serialVersionUID = 1L;


@RequestMapping(value = "/document/{DocType}",method =RequestMethod.POST, produces = MediaType.APPLICATION_JSON_UTF8_VALUE, consumes =MediaType.MULTIPART_FORM_DATA_VALUE )
public ResponseEntity fileUpload(@PathVariable("DocType") String docType, @RequestParam("pdf") MultipartFile multipartfiles, @RequestParam(name ="provider", required=false) String AcceptProvider, @RequestParam(name= "verbose", required=false) String AcceptVerbose,@RequestParam(name= "pdf_password",required=false) String AcceptPass, HttpServletRequest request){
boolean isMultipartContent = ServletFileUpload.isMultipartContent(request);

        String provider = null;
        String password = null;
        boolean verbose= false;

        try{
            MultipartFile uploadedFile = multipartfiles;
            if(uploadedFile!=null){
                String fieldname = uploadedFile.getName();

                if(AcceptProvider!=null){
                    provider=AcceptProvider.trim();
                    SplunkMgr.addtoMDC(MDCFieldNames.PROVIDER.getValue(), provider.trim());
                }

                if(AcceptVerbose!=null){
                    verbose = "true".equals(AcceptVerbose.trim());
                }

                if (PESConstants.PARAM_PDF.equals(fieldname)) {
                    file = uploadedFile.getBytes();
                }

                if(AcceptPass!=null){
                    password=AcceptPass.trim();
                    SplunkMgr.addtoMDC(MDCFieldNames.PASSWORD_PROVIDED.getValue(), String.valueOf(password != null));
                }
            }
        }// Network problem
        catch (IOException e) {
            log.error("Network error when receiving request.", e);
            PDFExtractResult pdfExtractResult = new PDFExtractResult().markInError(PdfExtractReferenceMgr.instance().getMessage(MessageConstants.InvitcoMsgCode.PES_NETWORK_ERROR));
            responseData = PdfServletMgr.createResponseJson(pdfExtractResult, verbose);
        }
//---here is my code to process the file and sending the response----

}

但是我的客户发送的邮件如下

HttpURLConnection connection = (HttpURLConnection)new 
URL(url).openConnection();

    connection.setDoOutput(true);
    connection.setRequestProperty("Content-Type", 
"form-data; boundary=" + boundary);




SplunkMgr.instance().addSplunkMessage("Calling PES Service with 
userId = " + userId, LogLevel.INFO);
    }
    else{

        try {
            SplunkMgr.instance().addSplunkMessage("Could not get user context from logged in user " , LogLevel.INFO);
            new MappingSysAdminServiceImpl().logout();
        } catch (SAMException e) {
            SplunkMgr.instance().addSplunkMessage("Logout Failed - Unexpected error when logging out. " + (e !=null ? e.getMessage() : e), LogLevel.ERROR);
        }
    }
    if(autoMapper!=null)
        // here header data setting

    OutputStream output = connection.getOutputStream();
    PrintWriter writer = new PrintWriter(new OutputStreamWriter(output, CHARSET), false);

    // Add params
    if (providerId != null && providerId.length() > 0) {
        addParam(writer, boundary, PESConstants.PARAM_PROVIDER, providerId);
    }
    if (verbose) {
        addParam(writer, boundary, PESConstants.PARAM_VERBOSE, "true");
    }
    if (password != null && password.length() > 0) {
        addParam(writer, boundary, PESConstants.PARAM_PASSWORD, password);
    }

    // Send file
    writer.append("--" + boundary).append(CRLF);
    writer.append("Content-Disposition: multipart/form-data; name=\""+PESConstants.PARAM_PDF+"\"").append(CRLF);
    writer.append("Content-Type: application/pdf").append(CRLF);
    writer.append("Content-Transfer-Encoding: binary").append(CRLF);


    writer.append(CRLF).flush();
    output.write(pdfFile);
    output.flush(); // Important before continuing with writer!
    writer.append(CRLF).flush(); // CRLF is important! It indicates end of boundary.

    // End of multipart/form-data.
    writer.append("--" + boundary + "--").append(CRLF).flush();

    // Read response
    InputStream input = null;

您的帮助确实可以帮助我进军。

注意：如果我使用springboot multipart，则可以无障碍运行并获得输出。问题是当我从客户端打来时...

请建议我必须做些什么更改才能继续进行

在控制器中，我有@RequestParam，因此它没有进入控制器内部，然后我意识到客户端发送了表单数据，因此我更改为jersy的@FormDataParam并获得了MultiPart，但是其中什么也没得到。

@FormDataParam（PESConstants.PARAM_PDF）InputStream inputStream

我没有收到任何错误，但是：InputStream对象中为空

sprinboot中的多部分请求不起作用

0 个答案: