RestTemplateを使用してヘッダにデータを送る方法

Question

私は3つのフィールド：SystemId,RegionCodeおよびLocaleを持っています。 RestTemplateを使用してこれらの3つのフィールドをヘッダーに送信する必要があります。私はこのコードを使用しています：

RestTemplate restTemplate = new RestTemplate(); 
HttpHeaders headers = new HttpHeaders(); 
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); 

HttpEntity<String> entity = new HttpEntity<String("RegionCode",regionCode); 

restTemplate.exchange(url, HttpMethod.POST, entity, String.class); 

私はヘッダに残りの二つのフィールドを追加することができますどのように？

Answer 1

たぶん、あなたは次のことを試みることができる：

RestTemplate restTemplate = new RestTemplate(); 
HttpHeaders headers = new HttpHeaders(); 
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); 
headers.put("RegionCode", regionCode); 
headers.put("SystemId", systemId); 
headers.put("Locale", locale); 

HttpEntity<String> entity = new HttpEntity<String>(body,headers); 

restTemplate.exchange(url, HttpMethod.POST, entity, String.class); 

Answer 2

This is one of the example I have created:- 

/********This is controller getMethod**********/ 

@RequestMapping(value = "/employee/{id}", method = RequestMethod.GET, produces = {MediaType.APPLICATION_JSON_VALUE,MediaType.APPLICATION_XML_VALUE}) 
    public ResponseEntity<Employee> getEmployee(@PathVariable("id") long id) { 
     System.out.println("Fetching Employee with id " + id); 
     Employee user = employeeService.findById(id); 
     if (user == null) { 
      System.out.println("Employee with id " + id + " not found"); 
      return new ResponseEntity<Employee>(HttpStatus.NOT_FOUND); 
     } 
     return new ResponseEntity<Employee>(user, HttpStatus.OK); 
    } 


/********This is client implementation**********/ 

@RequestMapping(value = "/employee/{id}", method = RequestMethod.GET, produces = {MediaType.APPLICATION_JSON_VALUE,MediaType.APPLICATION_XML_VALUE}) 
    public ResponseEntity<Employee> getEmployee(@PathVariable("id") long id) { 
     System.out.println("Fetching Employee with id " + id); 
     Employee user = employeeService.findById(id); 
     if (user == null) { 
      System.out.println("Employee with id " + id + " not found"); 
      return new ResponseEntity<Employee>(HttpStatus.NOT_FOUND); 
     } 
     return new ResponseEntity<Employee>(user, HttpStatus.OK); 
    } 
/*************Done**************/ 

/*******Output******/ 

<200 OK,<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<employee> 
<age>33</age> 
<id>1</id> 
<name>Tomy</name> 
<salary>70000.0</salary> 
</employee>`enter code here` 
,{Server=[Apache-Coyote/1.1], Access-Control-Allow-Origin=[*], Access-Control-Allow-Methods=[POST, GET, PUT, OPTIONS, DELETE], Access-Control-Max-Age=[3600], Access-Control-Allow-Headers=[x-requested-with], Content-Type=[application/xml], Transfer-Encoding=[chunked], Date=[Wed, 20 Apr 2016 12:49:16 GMT]}>