java - MissingServel异常Spring Boot

我在Spring Boot中遇到错误，它说我不发送paramSelect，但它是错误的，我发送了paramSelect。

我寄

 public filterResult(paramSelect: string, filterDateStart: string, filterDateEnd: string): Observable<any> {
  filterDateStart = filterDateStart.replace(/\//g, '-');
  filterDateEnd = filterDateEnd.replace(/\//g, '-');

const url = 'http://localhost:8080/filterResult/' + paramSelect + '/' + filterDateStart + '/' + filterDateEnd;
return this.http.get<any>(url);

HTML错误->

zone.js:2969 GET http://localhost:8080/filterResult/EDU/04-07-2018/05-07-2018 400 ()

在我的SpringBoot中->

@RequestMapping(method = RequestMethod.GET, value = "/filterResult/{paramSelect}/{dateStart}/{dateEnd}", produces = MediaType.APPLICATION_JSON_VALUE)
public List filterResult(@RequestParam("paramSelect") String  paramSelect , @RequestParam("dateStart") String dateStart , @RequestParam("dateEnd") String dateEnd) {
    System.out.println("llego");
    List<Parameter> list = pgService.filterResult(paramSelect, dateStart, dateEnd);
    return list;
}

我收到一个错误：

Resolved exception caused by Handler execution: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'paramSelect' is not present

最佳答案

您应该更改为路径变量使用@PathVariable而不是@RequestParam：

 public List filterResult(@PathVariable("paramSelect") String  paramSelect , @PathVariable("dateStart") String dateStart , @PathVariable("dateEnd") String dateEnd) {