REST Service call with JAR as payload

Question

How to read JAR file from src/main/resources folder & use it as payload for REST service call from Spring boot application using RestTemplate

Any code snippet would be helpful

Thanks

Jar file is not different from any other file type in rest upload download. Why you want to treat differently? — Red Boy, May 31 '18 at 16:53
hi Red Boy, Thanks a lot for your input, have updated the question the challenge I face is reading the Jar file from resources folder and using it in the payoad for rest service call — Sriram, May 31 '18 at 18:55
Please share what you have tried, its difficult for SO members to write a code for your qs. — Amit K Bist, May 31 '18 at 20:43
Any Code / Github / add some code here in question. Is that possible? — AMIC MING, May 31 '18 at 21:33

score 1 · Accepted Answer · answered May 31 '18 at 20:50

You need to use LinkedMultiValueMap to send a file using RestTemplate, Code should be like below:

    ClassLoader classLoader = getClass().getClassLoader();
    File file = new File(classLoader.getResource("yourjarfile").getFile());

    LinkedMultiValueMap<String, Object> map = new LinkedMultiValueMap<>();
        map.add("file", new FileSystemResource(file));

    HttpEntity<MultiValueMap<String, Object>> httpEntity = new HttpEntity<MultiValueMap<String, Object>>(map,
                getHeaders());

    ResponseEntity<String> resp = new RestTemplate().exchange(
                    "REST_URL/", HttpMethod.POST, httpEntity,
                    String.class);

REST Service call with JAR as payload

1 Answers1