微信公众号开发------长链接转短链接接口

1、

将一条长链接转成短链接。

主要使用场景： 开发者用于生成二维码的原链接（商品、支付二维码等）太长导致扫码速度和成功率下降，将原长链接通过此接口转成短链接再生成二维码将大大提升扫码速度和成功率。

2、

3、代码

**
	 * @date 2017年3月13日下午4:05:13
	 * @param longurl
	 * @param token void
	 * @Des:微信长链接转短链接
	 */
	public static void Long2Short(String longurl, String token){
		
		String sUrl ="https://api.weixin.qq.com/cgi-bin/shorturl?access_token=ACCESS_TOKEN";
		try {
			sUrl = sUrl.replace("ACCESS_TOKEN", token);
			String param = "{\"action\":\"long2short\","
					+ "\"long_url\":\""+longurl+"\"}";
			JSONObject jsonObject = HttpRequestUtil.httpRequest(sUrl, "POST", param);
			System.err.println("jsonObject:"+jsonObject);
			boolean containsValue = jsonObject.containsKey("errcode");
			if(containsValue){
				String errcode = jsonObject.getString("errcode");
				System.err.println("errcode"+errcode);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.X509TrustManager;

/**
 * 证书信任管理器（用于HTTPS请求）
 * 
 */
public class MyX509TrustManager implements X509TrustManager {

	public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
	}

	public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
	}

	public X509Certificate[] getAcceptedIssuers() {
		return null;
	}
}

	
public static JSONObject httpRequest(String requestUrl, String requestMethod, String outputStr) {
		
		JSONObject jsonObject = null;
		StringBuffer buffer = new StringBuffer();
		try {
			// 创建SSLContext对象，并使用我们指定的信任管理器初始化
			TrustManager[] tm = { new MyX509TrustManager() };
			SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
			sslContext.init(null, tm, new java.security.SecureRandom());
			// 从上述SSLContext对象中得到SSLSocketFactory对象
			SSLSocketFactory ssf = sslContext.getSocketFactory();

			URL url = new URL(requestUrl);
			HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
			httpUrlConn.setSSLSocketFactory(ssf);

			httpUrlConn.setDoOutput(true);
			httpUrlConn.setDoInput(true);
			httpUrlConn.setUseCaches(false);
			// 设置请求方式（GET/POST）
			httpUrlConn.setRequestMethod(requestMethod);

			if ("GET".equalsIgnoreCase(requestMethod))
				httpUrlConn.connect();

			// 当有数据需要提交时
			if (null != outputStr) {
				OutputStream outputStream = httpUrlConn.getOutputStream();
				// 注意编码格式，防止中文乱码
				outputStream.write(outputStr.getBytes("UTF-8"));
				outputStream.close();
			}

			// 将返回的输入流转换成字符串
			InputStream inputStream = httpUrlConn.getInputStream();
			InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
			BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

			String str = null;
			while ((str = bufferedReader.readLine()) != null) {
				buffer.append(str);
			}
			bufferedReader.close();
			inputStreamReader.close();
			// 释放资源
			inputStream.close();
			inputStream = null;
			httpUrlConn.disconnect();
			jsonObject = JSONObject.fromObject(buffer.toString());
			//System.out.println("jsonObject="+jsonObject);
		} catch (ConnectException ce) {
			ce.printStackTrace();
			System.out.println("网络链接失败！");
		}catch (UnknownHostException uhe) {
			uhe.printStackTrace();
			System.out.println("微信API无法访问....！");
			//httpRequest(requestUrl, requestMethod, outputStr);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return jsonObject;
	}

结果