URLDecoder: Illegal hex characters in escape (%) pattern for multipart data





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}







0















I am using multipart to fetch the pdf and object data from the service. I get the below error




java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters
in escape (%) pattern - For input string: "PD" at
java.net.URLDecoder.decode(URLDecoder.java:205) at
org.springframework.http.converter.FormHttpMessageConverter.read(FormHttpMessageConverter.java:186)




when invoking the service.






SERVICE :


@RequestMapping(value = "/getPDF", method = RequestMethod.GET,produces = MediaType.MULTIPART_FORM_DATA_VALUE)
public ResponseEntity<MultiValueMap<String, Object>> getPDF(
@RequestParam String key,
HttpServletResponse response) {



MultiValueMap<String, Object> pdfResultMap = new LinkedMultiValueMap<String, Object>();


//Get the result
ByteArrayResource byteArrayResource = getPdf(); //Assign the PDF


//1) Build the first byte result
/* LinkedMultiValueMap<String, String> pdfMap = new LinkedMultiValueMap<>();
pdfMap.add("Content-disposition", "attachment;" );
pdfMap.add("Content-type", "application/pdf");*/
HttpHeaders xHeader2 = new HttpHeaders();
xHeader2.setContentType(MediaType.APPLICATION_PDF);
HttpEntity<ByteArrayResource> doc = new HttpEntity<ByteArrayResource>(byteArrayResource, xHeader2);
pdfResultMap.add("doc", doc);

// 2) Build the next
//Header
HttpHeaders xHeader = new HttpHeaders();
xHeader.setContentType(MediaType.APPLICATION_JSON);

// Get the result
Map<String, String> stringMap = new HashMap<String, String>();
//populate String map

HttpEntity<Map<String, String>> stringMapObject = new HttpEntity<Map<String, String>>(stringMap, xHeader);
pdfResultMap.add("stringMap", stringMapObject);

//3) Build the simple header

HttpHeaders xHeader1 = new HttpHeaders();
xHeader.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> titlePart = new HttpEntity<String>("pdftitle", xHeader1);
pdfResultMap.add("title", titlePart);

ResponseEntity<MultiValueMap<String, Object>> responseEntity = new ResponseEntity<MultiValueMap<String, Object>>(pdfResultMap, HttpStatus.OK);

return responseEntity;
}


CLIENT :

public getPdf() {

FormHttpMessageConverter formConverter = new FormHttpMessageConverter() {
@Override
public boolean canRead(Class<?> clazz, MediaType mediaType) {
if (clazz == MultiValueMap.class) {
return true;
}
return super.canRead(clazz, mediaType);
}
};


formConverter.setCharset(Charset.forName("UTF-8"));
List<HttpMessageConverter<?>> partConverters = new ArrayList<HttpMessageConverter<?>>();
partConverters.add(new ByteArrayHttpMessageConverter());
StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
stringHttpMessageConverter.setWriteAcceptCharset(false);
partConverters.add(stringHttpMessageConverter);
partConverters.add(new ResourceHttpMessageConverter());
formConverter.setPartConverters(partConverters);


restTemplate.getMessageConverters().add(formConverter);

ResponseEntity<MultiValueMap> response = restTemplate.exchange(builder.build().encode().toUri(), HttpMethod.GET,entity, MultiValueMap.class);


}


I Tried adding :


List<MediaType> a = new ArrayList<MediaType>();
a.add(MediaType.APPLICATION_OCTET_STREAM);
a.add(MediaType.MULTIPART_FORM_DATA);
a.add(new MediaType("application","pdf"));
formConverter.setSupportedMediaTypes(a);

But the same error .





Anything I am missing here?










share|improve this question































    0















    I am using multipart to fetch the pdf and object data from the service. I get the below error




    java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters
    in escape (%) pattern - For input string: "PD" at
    java.net.URLDecoder.decode(URLDecoder.java:205) at
    org.springframework.http.converter.FormHttpMessageConverter.read(FormHttpMessageConverter.java:186)




    when invoking the service.






    SERVICE :


    @RequestMapping(value = "/getPDF", method = RequestMethod.GET,produces = MediaType.MULTIPART_FORM_DATA_VALUE)
    public ResponseEntity<MultiValueMap<String, Object>> getPDF(
    @RequestParam String key,
    HttpServletResponse response) {



    MultiValueMap<String, Object> pdfResultMap = new LinkedMultiValueMap<String, Object>();


    //Get the result
    ByteArrayResource byteArrayResource = getPdf(); //Assign the PDF


    //1) Build the first byte result
    /* LinkedMultiValueMap<String, String> pdfMap = new LinkedMultiValueMap<>();
    pdfMap.add("Content-disposition", "attachment;" );
    pdfMap.add("Content-type", "application/pdf");*/
    HttpHeaders xHeader2 = new HttpHeaders();
    xHeader2.setContentType(MediaType.APPLICATION_PDF);
    HttpEntity<ByteArrayResource> doc = new HttpEntity<ByteArrayResource>(byteArrayResource, xHeader2);
    pdfResultMap.add("doc", doc);

    // 2) Build the next
    //Header
    HttpHeaders xHeader = new HttpHeaders();
    xHeader.setContentType(MediaType.APPLICATION_JSON);

    // Get the result
    Map<String, String> stringMap = new HashMap<String, String>();
    //populate String map

    HttpEntity<Map<String, String>> stringMapObject = new HttpEntity<Map<String, String>>(stringMap, xHeader);
    pdfResultMap.add("stringMap", stringMapObject);

    //3) Build the simple header

    HttpHeaders xHeader1 = new HttpHeaders();
    xHeader.setContentType(MediaType.APPLICATION_JSON);
    HttpEntity<String> titlePart = new HttpEntity<String>("pdftitle", xHeader1);
    pdfResultMap.add("title", titlePart);

    ResponseEntity<MultiValueMap<String, Object>> responseEntity = new ResponseEntity<MultiValueMap<String, Object>>(pdfResultMap, HttpStatus.OK);

    return responseEntity;
    }


    CLIENT :

    public getPdf() {

    FormHttpMessageConverter formConverter = new FormHttpMessageConverter() {
    @Override
    public boolean canRead(Class<?> clazz, MediaType mediaType) {
    if (clazz == MultiValueMap.class) {
    return true;
    }
    return super.canRead(clazz, mediaType);
    }
    };


    formConverter.setCharset(Charset.forName("UTF-8"));
    List<HttpMessageConverter<?>> partConverters = new ArrayList<HttpMessageConverter<?>>();
    partConverters.add(new ByteArrayHttpMessageConverter());
    StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
    stringHttpMessageConverter.setWriteAcceptCharset(false);
    partConverters.add(stringHttpMessageConverter);
    partConverters.add(new ResourceHttpMessageConverter());
    formConverter.setPartConverters(partConverters);


    restTemplate.getMessageConverters().add(formConverter);

    ResponseEntity<MultiValueMap> response = restTemplate.exchange(builder.build().encode().toUri(), HttpMethod.GET,entity, MultiValueMap.class);


    }


    I Tried adding :


    List<MediaType> a = new ArrayList<MediaType>();
    a.add(MediaType.APPLICATION_OCTET_STREAM);
    a.add(MediaType.MULTIPART_FORM_DATA);
    a.add(new MediaType("application","pdf"));
    formConverter.setSupportedMediaTypes(a);

    But the same error .





    Anything I am missing here?










    share|improve this question



























      0












      0








      0








      I am using multipart to fetch the pdf and object data from the service. I get the below error




      java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters
      in escape (%) pattern - For input string: "PD" at
      java.net.URLDecoder.decode(URLDecoder.java:205) at
      org.springframework.http.converter.FormHttpMessageConverter.read(FormHttpMessageConverter.java:186)




      when invoking the service.






      SERVICE :


      @RequestMapping(value = "/getPDF", method = RequestMethod.GET,produces = MediaType.MULTIPART_FORM_DATA_VALUE)
      public ResponseEntity<MultiValueMap<String, Object>> getPDF(
      @RequestParam String key,
      HttpServletResponse response) {



      MultiValueMap<String, Object> pdfResultMap = new LinkedMultiValueMap<String, Object>();


      //Get the result
      ByteArrayResource byteArrayResource = getPdf(); //Assign the PDF


      //1) Build the first byte result
      /* LinkedMultiValueMap<String, String> pdfMap = new LinkedMultiValueMap<>();
      pdfMap.add("Content-disposition", "attachment;" );
      pdfMap.add("Content-type", "application/pdf");*/
      HttpHeaders xHeader2 = new HttpHeaders();
      xHeader2.setContentType(MediaType.APPLICATION_PDF);
      HttpEntity<ByteArrayResource> doc = new HttpEntity<ByteArrayResource>(byteArrayResource, xHeader2);
      pdfResultMap.add("doc", doc);

      // 2) Build the next
      //Header
      HttpHeaders xHeader = new HttpHeaders();
      xHeader.setContentType(MediaType.APPLICATION_JSON);

      // Get the result
      Map<String, String> stringMap = new HashMap<String, String>();
      //populate String map

      HttpEntity<Map<String, String>> stringMapObject = new HttpEntity<Map<String, String>>(stringMap, xHeader);
      pdfResultMap.add("stringMap", stringMapObject);

      //3) Build the simple header

      HttpHeaders xHeader1 = new HttpHeaders();
      xHeader.setContentType(MediaType.APPLICATION_JSON);
      HttpEntity<String> titlePart = new HttpEntity<String>("pdftitle", xHeader1);
      pdfResultMap.add("title", titlePart);

      ResponseEntity<MultiValueMap<String, Object>> responseEntity = new ResponseEntity<MultiValueMap<String, Object>>(pdfResultMap, HttpStatus.OK);

      return responseEntity;
      }


      CLIENT :

      public getPdf() {

      FormHttpMessageConverter formConverter = new FormHttpMessageConverter() {
      @Override
      public boolean canRead(Class<?> clazz, MediaType mediaType) {
      if (clazz == MultiValueMap.class) {
      return true;
      }
      return super.canRead(clazz, mediaType);
      }
      };


      formConverter.setCharset(Charset.forName("UTF-8"));
      List<HttpMessageConverter<?>> partConverters = new ArrayList<HttpMessageConverter<?>>();
      partConverters.add(new ByteArrayHttpMessageConverter());
      StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
      stringHttpMessageConverter.setWriteAcceptCharset(false);
      partConverters.add(stringHttpMessageConverter);
      partConverters.add(new ResourceHttpMessageConverter());
      formConverter.setPartConverters(partConverters);


      restTemplate.getMessageConverters().add(formConverter);

      ResponseEntity<MultiValueMap> response = restTemplate.exchange(builder.build().encode().toUri(), HttpMethod.GET,entity, MultiValueMap.class);


      }


      I Tried adding :


      List<MediaType> a = new ArrayList<MediaType>();
      a.add(MediaType.APPLICATION_OCTET_STREAM);
      a.add(MediaType.MULTIPART_FORM_DATA);
      a.add(new MediaType("application","pdf"));
      formConverter.setSupportedMediaTypes(a);

      But the same error .





      Anything I am missing here?










      share|improve this question
















      I am using multipart to fetch the pdf and object data from the service. I get the below error




      java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters
      in escape (%) pattern - For input string: "PD" at
      java.net.URLDecoder.decode(URLDecoder.java:205) at
      org.springframework.http.converter.FormHttpMessageConverter.read(FormHttpMessageConverter.java:186)




      when invoking the service.






      SERVICE :


      @RequestMapping(value = "/getPDF", method = RequestMethod.GET,produces = MediaType.MULTIPART_FORM_DATA_VALUE)
      public ResponseEntity<MultiValueMap<String, Object>> getPDF(
      @RequestParam String key,
      HttpServletResponse response) {



      MultiValueMap<String, Object> pdfResultMap = new LinkedMultiValueMap<String, Object>();


      //Get the result
      ByteArrayResource byteArrayResource = getPdf(); //Assign the PDF


      //1) Build the first byte result
      /* LinkedMultiValueMap<String, String> pdfMap = new LinkedMultiValueMap<>();
      pdfMap.add("Content-disposition", "attachment;" );
      pdfMap.add("Content-type", "application/pdf");*/
      HttpHeaders xHeader2 = new HttpHeaders();
      xHeader2.setContentType(MediaType.APPLICATION_PDF);
      HttpEntity<ByteArrayResource> doc = new HttpEntity<ByteArrayResource>(byteArrayResource, xHeader2);
      pdfResultMap.add("doc", doc);

      // 2) Build the next
      //Header
      HttpHeaders xHeader = new HttpHeaders();
      xHeader.setContentType(MediaType.APPLICATION_JSON);

      // Get the result
      Map<String, String> stringMap = new HashMap<String, String>();
      //populate String map

      HttpEntity<Map<String, String>> stringMapObject = new HttpEntity<Map<String, String>>(stringMap, xHeader);
      pdfResultMap.add("stringMap", stringMapObject);

      //3) Build the simple header

      HttpHeaders xHeader1 = new HttpHeaders();
      xHeader.setContentType(MediaType.APPLICATION_JSON);
      HttpEntity<String> titlePart = new HttpEntity<String>("pdftitle", xHeader1);
      pdfResultMap.add("title", titlePart);

      ResponseEntity<MultiValueMap<String, Object>> responseEntity = new ResponseEntity<MultiValueMap<String, Object>>(pdfResultMap, HttpStatus.OK);

      return responseEntity;
      }


      CLIENT :

      public getPdf() {

      FormHttpMessageConverter formConverter = new FormHttpMessageConverter() {
      @Override
      public boolean canRead(Class<?> clazz, MediaType mediaType) {
      if (clazz == MultiValueMap.class) {
      return true;
      }
      return super.canRead(clazz, mediaType);
      }
      };


      formConverter.setCharset(Charset.forName("UTF-8"));
      List<HttpMessageConverter<?>> partConverters = new ArrayList<HttpMessageConverter<?>>();
      partConverters.add(new ByteArrayHttpMessageConverter());
      StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
      stringHttpMessageConverter.setWriteAcceptCharset(false);
      partConverters.add(stringHttpMessageConverter);
      partConverters.add(new ResourceHttpMessageConverter());
      formConverter.setPartConverters(partConverters);


      restTemplate.getMessageConverters().add(formConverter);

      ResponseEntity<MultiValueMap> response = restTemplate.exchange(builder.build().encode().toUri(), HttpMethod.GET,entity, MultiValueMap.class);


      }


      I Tried adding :


      List<MediaType> a = new ArrayList<MediaType>();
      a.add(MediaType.APPLICATION_OCTET_STREAM);
      a.add(MediaType.MULTIPART_FORM_DATA);
      a.add(new MediaType("application","pdf"));
      formConverter.setSupportedMediaTypes(a);

      But the same error .





      Anything I am missing here?






      SERVICE :


      @RequestMapping(value = "/getPDF", method = RequestMethod.GET,produces = MediaType.MULTIPART_FORM_DATA_VALUE)
      public ResponseEntity<MultiValueMap<String, Object>> getPDF(
      @RequestParam String key,
      HttpServletResponse response) {



      MultiValueMap<String, Object> pdfResultMap = new LinkedMultiValueMap<String, Object>();


      //Get the result
      ByteArrayResource byteArrayResource = getPdf(); //Assign the PDF


      //1) Build the first byte result
      /* LinkedMultiValueMap<String, String> pdfMap = new LinkedMultiValueMap<>();
      pdfMap.add("Content-disposition", "attachment;" );
      pdfMap.add("Content-type", "application/pdf");*/
      HttpHeaders xHeader2 = new HttpHeaders();
      xHeader2.setContentType(MediaType.APPLICATION_PDF);
      HttpEntity<ByteArrayResource> doc = new HttpEntity<ByteArrayResource>(byteArrayResource, xHeader2);
      pdfResultMap.add("doc", doc);

      // 2) Build the next
      //Header
      HttpHeaders xHeader = new HttpHeaders();
      xHeader.setContentType(MediaType.APPLICATION_JSON);

      // Get the result
      Map<String, String> stringMap = new HashMap<String, String>();
      //populate String map

      HttpEntity<Map<String, String>> stringMapObject = new HttpEntity<Map<String, String>>(stringMap, xHeader);
      pdfResultMap.add("stringMap", stringMapObject);

      //3) Build the simple header

      HttpHeaders xHeader1 = new HttpHeaders();
      xHeader.setContentType(MediaType.APPLICATION_JSON);
      HttpEntity<String> titlePart = new HttpEntity<String>("pdftitle", xHeader1);
      pdfResultMap.add("title", titlePart);

      ResponseEntity<MultiValueMap<String, Object>> responseEntity = new ResponseEntity<MultiValueMap<String, Object>>(pdfResultMap, HttpStatus.OK);

      return responseEntity;
      }


      CLIENT :

      public getPdf() {

      FormHttpMessageConverter formConverter = new FormHttpMessageConverter() {
      @Override
      public boolean canRead(Class<?> clazz, MediaType mediaType) {
      if (clazz == MultiValueMap.class) {
      return true;
      }
      return super.canRead(clazz, mediaType);
      }
      };


      formConverter.setCharset(Charset.forName("UTF-8"));
      List<HttpMessageConverter<?>> partConverters = new ArrayList<HttpMessageConverter<?>>();
      partConverters.add(new ByteArrayHttpMessageConverter());
      StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
      stringHttpMessageConverter.setWriteAcceptCharset(false);
      partConverters.add(stringHttpMessageConverter);
      partConverters.add(new ResourceHttpMessageConverter());
      formConverter.setPartConverters(partConverters);


      restTemplate.getMessageConverters().add(formConverter);

      ResponseEntity<MultiValueMap> response = restTemplate.exchange(builder.build().encode().toUri(), HttpMethod.GET,entity, MultiValueMap.class);


      }


      I Tried adding :


      List<MediaType> a = new ArrayList<MediaType>();
      a.add(MediaType.APPLICATION_OCTET_STREAM);
      a.add(MediaType.MULTIPART_FORM_DATA);
      a.add(new MediaType("application","pdf"));
      formConverter.setSupportedMediaTypes(a);

      But the same error .





      SERVICE :


      @RequestMapping(value = "/getPDF", method = RequestMethod.GET,produces = MediaType.MULTIPART_FORM_DATA_VALUE)
      public ResponseEntity<MultiValueMap<String, Object>> getPDF(
      @RequestParam String key,
      HttpServletResponse response) {



      MultiValueMap<String, Object> pdfResultMap = new LinkedMultiValueMap<String, Object>();


      //Get the result
      ByteArrayResource byteArrayResource = getPdf(); //Assign the PDF


      //1) Build the first byte result
      /* LinkedMultiValueMap<String, String> pdfMap = new LinkedMultiValueMap<>();
      pdfMap.add("Content-disposition", "attachment;" );
      pdfMap.add("Content-type", "application/pdf");*/
      HttpHeaders xHeader2 = new HttpHeaders();
      xHeader2.setContentType(MediaType.APPLICATION_PDF);
      HttpEntity<ByteArrayResource> doc = new HttpEntity<ByteArrayResource>(byteArrayResource, xHeader2);
      pdfResultMap.add("doc", doc);

      // 2) Build the next
      //Header
      HttpHeaders xHeader = new HttpHeaders();
      xHeader.setContentType(MediaType.APPLICATION_JSON);

      // Get the result
      Map<String, String> stringMap = new HashMap<String, String>();
      //populate String map

      HttpEntity<Map<String, String>> stringMapObject = new HttpEntity<Map<String, String>>(stringMap, xHeader);
      pdfResultMap.add("stringMap", stringMapObject);

      //3) Build the simple header

      HttpHeaders xHeader1 = new HttpHeaders();
      xHeader.setContentType(MediaType.APPLICATION_JSON);
      HttpEntity<String> titlePart = new HttpEntity<String>("pdftitle", xHeader1);
      pdfResultMap.add("title", titlePart);

      ResponseEntity<MultiValueMap<String, Object>> responseEntity = new ResponseEntity<MultiValueMap<String, Object>>(pdfResultMap, HttpStatus.OK);

      return responseEntity;
      }


      CLIENT :

      public getPdf() {

      FormHttpMessageConverter formConverter = new FormHttpMessageConverter() {
      @Override
      public boolean canRead(Class<?> clazz, MediaType mediaType) {
      if (clazz == MultiValueMap.class) {
      return true;
      }
      return super.canRead(clazz, mediaType);
      }
      };


      formConverter.setCharset(Charset.forName("UTF-8"));
      List<HttpMessageConverter<?>> partConverters = new ArrayList<HttpMessageConverter<?>>();
      partConverters.add(new ByteArrayHttpMessageConverter());
      StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
      stringHttpMessageConverter.setWriteAcceptCharset(false);
      partConverters.add(stringHttpMessageConverter);
      partConverters.add(new ResourceHttpMessageConverter());
      formConverter.setPartConverters(partConverters);


      restTemplate.getMessageConverters().add(formConverter);

      ResponseEntity<MultiValueMap> response = restTemplate.exchange(builder.build().encode().toUri(), HttpMethod.GET,entity, MultiValueMap.class);


      }


      I Tried adding :


      List<MediaType> a = new ArrayList<MediaType>();
      a.add(MediaType.APPLICATION_OCTET_STREAM);
      a.add(MediaType.MULTIPART_FORM_DATA);
      a.add(new MediaType("application","pdf"));
      formConverter.setSupportedMediaTypes(a);

      But the same error .






      java rest media-type






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 16 '18 at 15:56









      secret super star

      1,040316




      1,040316










      asked Nov 16 '18 at 15:27









      stackuserstackuser

      1,46831421




      1,46831421
























          1 Answer
          1






          active

          oldest

          votes


















          1














          You try to read from FormHttpMessageConverter but the doc https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/http/converter/FormHttpMessageConverter.html says



          "In other words, this converter can read and write the "application/x-www-form-urlencoded" media type as MultiValueMap and it can also write (but not read) the "multipart/form-data" media type as MultiValueMap."






          share|improve this answer
























          • Thanks Maksim. I did not know that. Is there any other way to send the byte stream and object to the client from the service? apart from converting to base 64?

            – stackuser
            Nov 16 '18 at 16:00













          • I think there is no way to avoid the usage of the org.springframework.web.multipart package .

            – Maksim
            Nov 16 '18 at 16:25











          • Thanks Maksim. Is there an example for this ?

            – stackuser
            Nov 16 '18 at 16:53











          • "Use the source (of docs), Luke": spring.io/guides/gs/uploading-files

            – Maksim
            Nov 16 '18 at 16:56






          • 1





            Thanks Maksim. Looks like even that supports File Upload and not download a file and an object together. I will consider base64

            – stackuser
            Nov 16 '18 at 16:59












          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53340819%2furldecoder-illegal-hex-characters-in-escape-pattern-for-multipart-data%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          You try to read from FormHttpMessageConverter but the doc https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/http/converter/FormHttpMessageConverter.html says



          "In other words, this converter can read and write the "application/x-www-form-urlencoded" media type as MultiValueMap and it can also write (but not read) the "multipart/form-data" media type as MultiValueMap."






          share|improve this answer
























          • Thanks Maksim. I did not know that. Is there any other way to send the byte stream and object to the client from the service? apart from converting to base 64?

            – stackuser
            Nov 16 '18 at 16:00













          • I think there is no way to avoid the usage of the org.springframework.web.multipart package .

            – Maksim
            Nov 16 '18 at 16:25











          • Thanks Maksim. Is there an example for this ?

            – stackuser
            Nov 16 '18 at 16:53











          • "Use the source (of docs), Luke": spring.io/guides/gs/uploading-files

            – Maksim
            Nov 16 '18 at 16:56






          • 1





            Thanks Maksim. Looks like even that supports File Upload and not download a file and an object together. I will consider base64

            – stackuser
            Nov 16 '18 at 16:59
















          1














          You try to read from FormHttpMessageConverter but the doc https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/http/converter/FormHttpMessageConverter.html says



          "In other words, this converter can read and write the "application/x-www-form-urlencoded" media type as MultiValueMap and it can also write (but not read) the "multipart/form-data" media type as MultiValueMap."






          share|improve this answer
























          • Thanks Maksim. I did not know that. Is there any other way to send the byte stream and object to the client from the service? apart from converting to base 64?

            – stackuser
            Nov 16 '18 at 16:00













          • I think there is no way to avoid the usage of the org.springframework.web.multipart package .

            – Maksim
            Nov 16 '18 at 16:25











          • Thanks Maksim. Is there an example for this ?

            – stackuser
            Nov 16 '18 at 16:53











          • "Use the source (of docs), Luke": spring.io/guides/gs/uploading-files

            – Maksim
            Nov 16 '18 at 16:56






          • 1





            Thanks Maksim. Looks like even that supports File Upload and not download a file and an object together. I will consider base64

            – stackuser
            Nov 16 '18 at 16:59














          1












          1








          1







          You try to read from FormHttpMessageConverter but the doc https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/http/converter/FormHttpMessageConverter.html says



          "In other words, this converter can read and write the "application/x-www-form-urlencoded" media type as MultiValueMap and it can also write (but not read) the "multipart/form-data" media type as MultiValueMap."






          share|improve this answer













          You try to read from FormHttpMessageConverter but the doc https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/http/converter/FormHttpMessageConverter.html says



          "In other words, this converter can read and write the "application/x-www-form-urlencoded" media type as MultiValueMap and it can also write (but not read) the "multipart/form-data" media type as MultiValueMap."







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 16 '18 at 15:36









          MaksimMaksim

          46648




          46648













          • Thanks Maksim. I did not know that. Is there any other way to send the byte stream and object to the client from the service? apart from converting to base 64?

            – stackuser
            Nov 16 '18 at 16:00













          • I think there is no way to avoid the usage of the org.springframework.web.multipart package .

            – Maksim
            Nov 16 '18 at 16:25











          • Thanks Maksim. Is there an example for this ?

            – stackuser
            Nov 16 '18 at 16:53











          • "Use the source (of docs), Luke": spring.io/guides/gs/uploading-files

            – Maksim
            Nov 16 '18 at 16:56






          • 1





            Thanks Maksim. Looks like even that supports File Upload and not download a file and an object together. I will consider base64

            – stackuser
            Nov 16 '18 at 16:59



















          • Thanks Maksim. I did not know that. Is there any other way to send the byte stream and object to the client from the service? apart from converting to base 64?

            – stackuser
            Nov 16 '18 at 16:00













          • I think there is no way to avoid the usage of the org.springframework.web.multipart package .

            – Maksim
            Nov 16 '18 at 16:25











          • Thanks Maksim. Is there an example for this ?

            – stackuser
            Nov 16 '18 at 16:53











          • "Use the source (of docs), Luke": spring.io/guides/gs/uploading-files

            – Maksim
            Nov 16 '18 at 16:56






          • 1





            Thanks Maksim. Looks like even that supports File Upload and not download a file and an object together. I will consider base64

            – stackuser
            Nov 16 '18 at 16:59

















          Thanks Maksim. I did not know that. Is there any other way to send the byte stream and object to the client from the service? apart from converting to base 64?

          – stackuser
          Nov 16 '18 at 16:00







          Thanks Maksim. I did not know that. Is there any other way to send the byte stream and object to the client from the service? apart from converting to base 64?

          – stackuser
          Nov 16 '18 at 16:00















          I think there is no way to avoid the usage of the org.springframework.web.multipart package .

          – Maksim
          Nov 16 '18 at 16:25





          I think there is no way to avoid the usage of the org.springframework.web.multipart package .

          – Maksim
          Nov 16 '18 at 16:25













          Thanks Maksim. Is there an example for this ?

          – stackuser
          Nov 16 '18 at 16:53





          Thanks Maksim. Is there an example for this ?

          – stackuser
          Nov 16 '18 at 16:53













          "Use the source (of docs), Luke": spring.io/guides/gs/uploading-files

          – Maksim
          Nov 16 '18 at 16:56





          "Use the source (of docs), Luke": spring.io/guides/gs/uploading-files

          – Maksim
          Nov 16 '18 at 16:56




          1




          1





          Thanks Maksim. Looks like even that supports File Upload and not download a file and an object together. I will consider base64

          – stackuser
          Nov 16 '18 at 16:59





          Thanks Maksim. Looks like even that supports File Upload and not download a file and an object together. I will consider base64

          – stackuser
          Nov 16 '18 at 16:59




















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53340819%2furldecoder-illegal-hex-characters-in-escape-pattern-for-multipart-data%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Bressuire

          Vorschmack

          Quarantine