代码问题十：post请求传参和返回

 * 发送post请求
 * 分开设置请求和响应编码，防止响应报文中文乱码
 * @param urlPath 请求地址
 * @param content 传参内容
 * @param connectTimeout
 * @param readTimeout
 * @param reqCharset	请求编码格式
 * @param respCharset	响应编码格式
 * @return 返回字符串
 * @throws Exception
 */

public static String (String urlPath, String content, int connectTimeout, int readTimeout, String reqCharset,String respCharset) throws Exception {
	try {
		URL url = new URL(urlPath);
		URLConnection urlConnection = url.openConnection();
		System.setProperty("sun.net.client.defaultConnectTimeout", connectTimeout + "");
		System.setProperty("sun.net.client.defaultReadTimeout", readTimeout + "");
		urlConnection.setRequestProperty("Content-Type", "text/plain;charset=" + reqCharset);
		HttpURLConnection httpUrlConnection = (HttpURLConnection) urlConnection;
		httpUrlConnection.setDoOutput(true);
		httpUrlConnection.setDoInput(true);
		httpUrlConnection.setUseCaches(false);
		httpUrlConnection.setRequestMethod("POST");
		System.out.println("http开始连接");
		httpUrlConnection.connect();
		System.out.println("http已连接");
		OutputStream outStrm = httpUrlConnection.getOutputStream();
		// 建立输入流，向指向的URL传入参数
		outStrm.write(content.getBytes(reqCharset));
		outStrm.flush();
		outStrm.close();
		// 获得响应状态
		int resultCode = httpUrlConnection.getResponseCode();
		if (HttpURLConnection.HTTP_OK == resultCode) {
			System.out.println("HTTP_OK");
			InputStream in = urlConnection.getInputStream();
			BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(in, respCharset));
			StringBuffer temp = new StringBuffer();
			String line = null;
			while ((line = bufferedReader.readLine()) != null) {
				temp.append(line).append("rn");
			}
			bufferedReader.close();
			return temp.toString();
		} else {
			throw new RuntimeException("调用接口失败！HTTP状态：" + resultCode);
		}
	} catch (Exception e) {
		throw new RuntimeException(e);
	}
}