如何列出springboot webservice中的所有请求参数？

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;
import java.util.Map;

@RestController
public class MyController {

    @GetMapping("/myWebService")
    public String myWebService(HttpServletRequest request) {
        Map<String, String[]> parameterMap = request.getParameterMap();
        StringBuilder result = new StringBuilder();
        for (Map.Entry<String, String[]> entry : parameterMap.entrySet()) {
            String paramName = entry.getKey();
            String[] paramValues = entry.getValue();
            for (String paramValue : paramValues) {
                result.append(paramName).append(": ").append(paramValue).append("\n");
            }
        }
        return result.toString();
    }
}