駱駝 - 生產者模板Http4響應代碼

Question

我有一個producer template調用Http4 end point。我如何獲得http狀態響應代碼（如200,201等）？

Map<String, Object> headers = new HashMap<>(); 
    headers.put(Exchange.HTTP_METHOD, GET); 

producerTemplate.requestBodyAndHeaders("https4://myhostname.com:443/myURL", null, headers, String.class); 

Answer 1

看到這個documentation：

它在頭Exchange.HTTP_RESPONSE_CODE

Answer 2

嘗試是這樣的（輕微排列的Camel docu的）：

Exchange exchange = template.send("https4://myhostname.com:443/myURL", new Processor() { 
    public void process(Exchange exchange) throws Exception { 
    exchange.getIn().setHeader(Exchange.HTTP_METHOD, GET); 
    } 
}); 
Message out = exchange.getOut(); 
int responseCode = out.getHeader(Exchange.HTTP_RESPONSE_CODE, Integer.class); 

它也可能不經過工作處理器，因爲如果主體爲空，http4默認爲GET。