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When calling GET http://localhost:8080/things/ZhaD2lk27XQPRJtwrABltd+UTWXcbnY%2FTrpxGP7VDVo= my Spring Boot application RestController with a request handler like this:

  @RequestMapping("/things/{thingId}")
  public ResponseEntity<Thing> getThing(
      @PathVariable String thingId) {

    System.out.println("thingId=" + thingId);
  ...

results in the following being printed ZhaD2lk27XQPRJtwrABltd UTWXcbnY/TrpxGP7VDVo= instead of what I would have expected ZhaD2lk27XQPRJtwrABltd+UTWXcbnY/TrpxGP7VDVo=.

As you can see, the plus is being turned into a space. This should not happen with the path part, only the query part. This is why the Spring UriComponentsBuilder.build().encode() I'm using to build the URL doesn't turn the plus into %2B.

I needed to tweak the application already to get the encoded slash (/) to work. See REST Endpoint unreachable if ID in URL contains %2F for details.

I'm using SpringBoot 1.4.4.RELEASE which uses Tomcat embed 8.5.11.
I have tried calling the service from Spring RestTemplate, Postman and Chrome. Same results in all cases, the plus is turned into a space

justinrknowles
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  • Are you typing the URL in the browser ? or are you invoking your service with js ? or are you invoking your service from a java client ? – reos Mar 02 '17 at 20:35

1 Answers1

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I was able to resolve after identifying that my IDE had automagically added spring-boot-starter-undertow to the POM file. I did not exclude spring-boot-starter-tomcat from spring-boot-starter-web so I'm not sure what was happening under the covers but removing the spring-boot-starter-undertow dependency fixed the issue.

justinrknowles
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