如何在Spring Boot中不解码@RequestParam设置的字符串？

Question

My controller has a method like below:

@ResponseBody
public String test(@RequestParam("r") String r){
String requestURI = request.getQueryString();
// What I want: abc+def%2Cfjg
System.out.println(requestURI.split("=")[1]);
// This is not what I want: abc def,fjg
System.out.println(r);
}

How can I let Spring boot know that the RequestParameter must not be decoded? ie not converting + to space, %2C to comma etc..

Answer 1

With the use of decode method you can decode your url.

private String decode(String value) {
    String decoded 
      = URLDecoder.decode(value, StandardCharsets.UTF_8.toString());
    return decoded;
}

If you want to encode it then use encode method.

private String encode(String value) {
    String encoded = 
      URLEncoder.encode(value, StandardCharsets.UTF_8.toString());
    return encoded;
}