通过 Spring 中的 @RequestParam 发送 %

Question

How to send % using @RequestParam in Spring?

I'm calling the API by this URL: http://localhost:8080/springmvc/test?param1=%

But I'm not able to get the % in the API. When I'm debugging, I'm getting param1 = null but I want to get the real character % . How to get that?

This is my API:

public List<Test> testParam(
            @PathVariable("test") string test,
            @RequestParam(value = "param1", required = false) string myParaml) {
  ...
}

Answer 1

Use URL encoding for special symbols as parameters

%   =  %25

Reference

You need to decode if want to read in Java Ref 2

Answer 2

You have to send special characters in UTF-8 encoded standard in the URL.

Try to send % as %25 , which is UTF-8 encoded equivalent.

http://localhost:8080/springmvc/test?param1=%25

This will work. Refer here for more.