RestTemplate中ResponseEntity的问题

Question

我有两个微服务，比如Microservice1使用RestTemplate调用Microservice2。

Microservice2上的处理程序方法如下。

 @GetMapping("/careerRoles")
 public ResponseEntity<Map<String, Object>> getRole(@RequestParam(value = 
   "roleName", required = false) String roleName,
 @RequestParam(value = "domain", required = false) String domain,
 @RequestParam("proficiencyLevel") String proficiencyLevel,
 @RequestParam(value = "page", required = false) Integer page,
 @RequestParam(value = "limit", required = false) Integer limit) {
   Map<String, Object> query = new HashMap<>();
   Map<String, Object> json = new HashMap<>();

   if (page == null && limit == null) {
       page = 1;
       limit = 10;
   }
   query.put("page", page);
   query.put("limit", limit);
   List<Role> roles = new ArrayList<>();

   try {
       if (roleName == null) {
           query.put("proficiencyLevel", proficiencyLevel);

           roles = this.roleService.getRolesByProficiencyLevel(proficiencyLevel, page, limit);
       } else {
           query.put("proficiencyLevel", proficiencyLevel);
           query.put("roles", roleName);
           roles = this.roleService.getRolesByNameAndProficiencyLevel(roleName, proficiencyLevel, page, limit);

       }

       json.put("error", null);
       json.put("query", query);
       json.put("result", roles);
       return new ResponseEntity<Map<String, Object>>(json, HttpStatus.OK);

   } catch (RoleNotFoundException e) {
       json.put("error", e.getMessage());
       json.put("query", query);
       json.put("result", roles);
       return new ResponseEntity<Map<String, Object>>(json, HttpStatus.NOT_FOUND);
   }

 }

Microservice1中的调用代码如下。

@GetMapping("careerRole")
public ResponseEntity<Map<String,Object>> getCareerRole(
  @RequestParam(value = "roleName", required = false) String roleName,
  @RequestParam(value = "domain", required = false) String domain,
  @RequestParam("proficiencyLevel") String proficiencyLevel,
  @RequestParam(value = "page", required = false) Integer page,
  @RequestParam(value = "limit", required = false) Integer limit) {

   HttpHeaders headers = new HttpHeaders();
   headers.setContentType(MediaType.APPLICATION_JSON);
   HttpEntity<String> entity = new HttpEntity<String>("Hello World!", 
     headers);
   UriComponentsBuilder builder = UriComponentsBuilder
           .fromUriString(uri)
           // Add query parameter
           .queryParam("roleName",roleName)
           .queryParam("proficiencyLevel", proficiencyLevel);
  Map<String,Object> map = restTemplate.getForObject(builder.toUriString(), 
    Map.class);
   return new ResponseEntity<Map<String,Object>>(map,HttpStatus.OK);
 }
}

当我将该代码发送到侦听端口8081的Microservice1时，该代码正在工作并按预期返回JSON

http://localhost:8081/api/v1/careerRoles?proficiencyLevel=Novice

http://localhost:8081/api/v1/careerRoles?roleName=Java Developer&proficiencyLevel=Novice

但是，如果我使用Postman直接访问带有前面两个GET请求的Microservice 2，结果就会像预期的那样开始。

我做错了什么？事先谢谢你的帮助。

Answer 1

我以前也遇到过这个问题。

java和开发人员之间的空间可能会产生问题，所以在继续之前对其进行解码。