java - 从 Spring 支架 Controller 返回带有查询参数的响应

Question

我想发送带有redirectUri 和查询参数的302 响应。我能够填充位置，但不确定如何将值作为查询参数包含在内以响应 Controller 。

我尝试向正文添加值，但我想在查询参数中发送它们。

public ResponseEntity<Void> redirect(@RequestBody MultiValueMap<String,String> formVars, HttpServletResponse response) {
    String clientId = formVars.getFirst(CLIENT_ID);
    String redirectUri = formVars.getFirst(REDIRECT_URI);
    String redirectToken = formVars.getFirst(REDIRECTION_TOKEN);

    ResponseHandler<RedirectDto> redirectDtoResponseHandler = redirectService.redeemRedirectToken(redirectToken);
    if (!redirectDtoResponseHandler.isPresent()) {
        //handle error
    }

    redirectDtoResponseHandler.map(redirectDto -> toCookie(redirectDto.getCustomerSessionId()))
        .ifPresent(response::addCookie);

    URI uri = UriComponentsBuilder.fromHttpUrl(redirectUri).build().toUri();

    //I'd like to add clientId as query param in this response?
    return ResponseEntity.status(HttpStatus.FOUND).location(uri).build();
}

我想在此响应中添加 clientId 作为查询参数吗？

Answer 1

UriComponents uriComponents = UriComponentsBuilder.newInstance()
      .scheme("http").host(redirectUri)
      .path("/").query("clientId={keyword}").buildAndExpand(clientId);