发送GET或POST请求

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发送GET请求

    /**     *      * @Title: sendGETRequest     * @Description: TODO(这里用一句话描述这个方法的作用)     * @author LinDL     * @Email lin_donglian@163.com     * @param @param path   请求路径     * @param @param params 请求参数     * @param @param encoding   编码格式     * @param @return     * @param @throws MalformedURLException     * @param @throws IOException 参数     * @return boolean 返回类型     */    private static boolean sendGETRequest(String path,            Map<String, String> params, String encoding)            throws MalformedURLException, IOException {        // TODO Auto-generated method stub        StringBuilder url = new StringBuilder();        url.append("?");        for (Map.Entry<String, String> entry : params.entrySet()) {            url.append(entry.getKey()).append("=");            url.append(URLEncoder.encode(entry.getValue(), "UTF-8"));            url.append("&");        }        url.deleteCharAt(url.length() - 1);        HttpURLConnection conn = (HttpURLConnection) new URL(url.toString())                .openConnection();        conn.setConnectTimeout(5000);        conn.setRequestMethod("GET");        if (conn.getResponseCode() == 200) {            return true;        }        return false;    }

发送POST请求

    /**     *         * @Title: sendPostRequest        * @Description: TODO(这里用一句话描述这个方法的作用)        * @author LinDL        * @Email  lin_donglian@163.com        * @param @param path    请求路径        * @param @param params  请求参数        * @param @param string  编码格式,通常为"UTF-8"        * @param @return        * @param @throws MalformedURLException        * @param @throws IOException    参数        * @return boolean    返回类型     */    private static boolean sendPostRequest(String path,            Map<String, String> params, String string)            throws MalformedURLException, IOException {        StringBuilder data = new StringBuilder();        if (params != null && !params.isEmpty()) {            for (Map.Entry<String, String> entry : params.entrySet()) {                data.append(entry.getKey()).append("=");                data.append(URLEncoder.encode(entry.getValue(), "UTF-8"));                data.append("&");            }            data.deleteCharAt(data.length() - 1);        }        byte[] entity = data.toString().getBytes();        HttpURLConnection conn = (HttpURLConnection) new URL(path)                .openConnection();        conn.setConnectTimeout(5000);        conn.setRequestMethod("POST");        conn.setDoOutput(true);// 允许对外输出数据        conn.setRequestProperty("Content-Type",                "application/x-www-form-urlencoded");        conn.setRequestProperty("Content-Length", String.valueOf(entity.length));        OutputStream outputStream = conn.getOutputStream();        outputStream.write(entity);        if (conn.getResponseCode() == 200) {            return true;        }        return false;    }

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