请求方

    @RequestMapping(value = "/movieFindByUser",method = RequestMethod.GET)public Object findByUser(@RequestParam(name = "name", required = false) String name, @RequestParam(name = "username", required = false) String username, @RequestParam(name = "age", required = false) Integer age, @RequestParam(name = "balance", required = false) BigDecimal balance) {String url = "http://localhost:8888/findByUser";
//        HashMap userRequest = new HashMap();MultiValueMap userRequest = new LinkedMultiValueMap<>();UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(url);URI uri = builder.queryParams(userRequest).build().encode().toUri();if (age != null) {userRequest.add("age", String.valueOf(age));}if (balance != null) {userRequest.add("balance", String.valueOf(balance));}if (name != null) {userRequest.add("name", name);}if (username != null) {userRequest.add("username", username);}UserInformation forObject = this.restTemplate.getForObject(uri , UserInformation.class);return forObject;}

接收方

@RequestMapping(value = "/findByUser",method = RequestMethod.GET)
public List findById(@RequestParam(name = "name", required = false) String name, @RequestParam(name = "username", required = false) String username, @RequestParam(name = "age", required = false) Integer age, @RequestParam(name = "balance", required = false) BigDecimal balance) {List byUser = userService.findByUser(name, username, age, balance);return byUser;
}

 代码用作记录日常的问题，方便自己查看。