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Spring boot RestTemplate - multipart/mixed


Spring boot RestTemplate - multipart/mixed

By : Mehrdad F
Date : November 21 2020, 03:00 PM
Does that help So, unfortunately, there really is no way to solve your problem with the current implementation of Springs RestTemplate from "spring-web-4.3.12.RELEASE.jar". It assumes in all cases that the only type of multipart data is "multipart/form-data:, and so it does not recoignize the multipart nature of your request.
org.springframework.http.converter.FormHttpMessageConverter: lines 247-272
code :
@Override
@SuppressWarnings("unchecked")
public void write(MultiValueMap<String, ?> map, MediaType contentType, HttpOutputMessage outputMessage)
        throws IOException, HttpMessageNotWritableException {

    if (!isMultipart(map, contentType)) {
        writeForm((MultiValueMap<String, String>) map, contentType, outputMessage);
    }
    else {
        writeMultipart((MultiValueMap<String, Object>) map, outputMessage);
    }
}


private boolean isMultipart(MultiValueMap<String, ?> map, MediaType contentType) {
    if (contentType != null) {
        return MediaType.MULTIPART_FORM_DATA.includes(contentType);
    }
    for (String name : map.keySet()) {
        for (Object value : map.get(name)) {
            if (value != null && !(value instanceof String)) {
                return true;
            }
        }
    }
    return false;
}
    if (contentType != null) {
        return MediaType.MULTIPART_FORM_DATA.includes(contentType);
    }


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Spring boot: The request was rejected because no multipart boundary was found in spring boot with ajax call?

Spring boot: The request was rejected because no multipart boundary was found in spring boot with ajax call?


By : Sason Ifp
Date : March 29 2020, 07:55 AM
wish helps you I am working with Spring boot. I want to upload a file along with some data using an AJAX call. However, when I enter the data, select the file, and click the submit button, I get the following exception: , The Issue is resolved with the following ajax code
code :
 var itemData=new FormData($("#courseForm")[0]);
        $.ajax({
            type : "POST",
            url : "/course/save",
            data : itemData,
            dataType : "json"
            processData : false,
            cache : false,
            contenttype : false;
            success : function(result) {
                if(result.message !=null){
                alert(result.message);
                }
            },
            error : function(e){
                alert("Error! Please enter proper data");
            }
        });
        return false;
Setting max-file-size for multipart uploads in spring boot using Jersey-multipart

Setting max-file-size for multipart uploads in spring boot using Jersey-multipart


By : Chanawut Tapala
Date : March 29 2020, 07:55 AM
wish of those help @VelNaga have anwser in the comments for me, to make easy to find this answer I am reposting the comment on the answers.
Spring Boot (1.2.5.RELEASE) Resttemplate Multipart File Upload UTF-8 Filename not possible

Spring Boot (1.2.5.RELEASE) Resttemplate Multipart File Upload UTF-8 Filename not possible


By : Asma Dabbous
Date : March 29 2020, 07:55 AM
I hope this helps you . I also faced same issue, problem is that Spring's RestTemplate follows RFC 2047, but StandardMultipartHttpServletRequest supports only RFC 6266 format, or headers needs to be in UTF-8 already (what is some browsers behavior).
I've already filled bug request. I've just verified that commons-fileupload library will handle this correctly. If you are using Spring Boot, you will need:
Spring - RestTemplate - Multipart File

Spring - RestTemplate - Multipart File


By : Michael Stringer
Date : March 29 2020, 07:55 AM
it helps some times Take a look at the answer here, it should be exactly what you are looking for: Attempting to test rest service with multipart file
The issue there is about posting a multi-part file to a rest service using a RestTemplate.
Spring Boot - MVC - RestTemplate: Where to initialize a RestTemplate for a MVC application to consume remote RESTful ser

Spring Boot - MVC - RestTemplate: Where to initialize a RestTemplate for a MVC application to consume remote RESTful ser


By : Christian Vann
Date : March 29 2020, 07:55 AM
wish of those help Have a look at the official documentation. Indeed you may reuse the template and instantiate it once by publishing it as a @Bean in your main configuration class (in your case @SpringBootApplication)
code :
@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
    return builder.build();
}
@Autowired
private RestTemplate restTemplate;
private RestTemplate restTemplate;
public GreetingController(RestTemplateBuilder builder) {
    this.restTemplate = builder.build(); // modify it before building
}
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