Java中請求遠程接口方法

請求遠程接口方法

 
    public static void postinit(PageData pd) throws Exception {
        // 創建Httpclient對象
        CloseableHttpClient httpclient = HttpClients.createDefault();
        // 創建http POST請求
        HttpPost httpPost = new HttpPost("你的遠程接口地址");
        // 設置參數
        List<NameValuePair> parameters = new ArrayList<NameValuePair>(0);
        parameters.add(new BasicNameValuePair("type", pd.getString("type")));
        parameters.add(new BasicNameValuePair("deviceCode", pd.getString("deviceCode")));
        parameters.add(new BasicNameValuePair("gridCode", pd.getString("gridCode")));
        // 構造一個form表單式的實體
        UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(parameters);
        // 將請求實體設置到httpPost對象中
        httpPost.setEntity(formEntity);

        httpPost.setHeader(
                "User-Agent",
                "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36");

        CloseableHttpResponse response = null;
        try {
            // 執行請求
            response = httpclient.execute(httpPost);
            // 判斷返回狀態是否爲200
            if (response.getStatusLine().getStatusCode() == 200) {
                String content = EntityUtils.toString(response.getEntity(),
                        "UTF-8");
                System.out.println("返回數據爲"+content);
            }
        } finally {
            if (response != null) {
                response.close();
            }
            httpclient.close();
        }
    }

其中Pagedate爲一個封裝的map類