How to Use apache. httpcomponents,

How to Use apache. httpcomponents,

For http use of the get method, note the splicing of URIBuilder.

   private static final String URL_LIVE = "https://apilayer.net/api/live";    private static final String URL_HISTORICAL = "https://apilayer.net/api/historical";    private static final String SOURCE = "USD";    private static final String CURRENCIES = "CNY";    @Value("${custom.currencylayer.access-key}")    private String accessKey;    private final ExchangeRateRepository exchangeRateRepository;    private final RedisTemplate
 
   redisTemplate;    public ExchangeRateServiceImpl(ExchangeRateRepository exchangeRateRepository, RedisTemplate
  
    redisTemplate) {        this.exchangeRateRepository = exchangeRateRepository;        this.redisTemplate = redisTemplate;    }    protected JSONObject fetchAndParseExchangeRate(LocalDate date) throws FetchExchangeRateException {        String result;        try {            URI uri;            if (Objects.isNull(date)) {                uri = new URIBuilder(URL_LIVE)                        .addParameter("access_key", accessKey)                        .addParameter("source", SOURCE)                        .addParameter("currencies", CURRENCIES)                        .build();            } else {                uri = new URIBuilder(URL_HISTORICAL)                        .addParameter("access_key", accessKey)                        .addParameter("source", SOURCE)                        .addParameter("currencies", CURRENCIES)                        .addParameter("date", date.toString())                        .build();            }            result = Request.Get(uri).execute().returnContent().asString();        } catch (URISyntaxException | IOException e) {            throw new FetchExchangeRateException(e);        }        JSONObject object = JSONObject.parseObject(result);        if (!object.getBoolean("success")) {            String message = String.format("Failed to fetch and parse exchange rate, date: %s", date);            LOGGER.warn(">>> ExchangeRate result: {}", object.toJSONString());            throw new FetchExchangeRateException(message);        }        return object;    }
  
 

For the http usage of the POST method, note the splicing of URIBuilder.

     private static final String URL_SYN_DATA = "https://baseservice.test.joel.com/datasync/apps/";    public String exe(String appId) {        URI uri;        String result;        String retureVal = "";        try {            uri = new URIBuilder(URL_SYN_DATA+appId).build();            result = Request.Post(uri).execute().returnContent().asString();            JSONObject jsonObject = JSONObject.parseObject(result);            String success = jsonObject.getString("success");            String appId1 = jsonObject.getString("appId");            retureVal = success;        } catch (URISyntaxException | IOException e) {            e.printStackTrace();            retureVal="catchError";        }        return retureVal;    }

The following dependencies are used:

       
       
  
   org.apache.httpcomponents
        fluent-hc    
     
       
  
   com.alibaba
        fastjson