百度地图测量两点间距离（行车距离）

本文写于2017年09月09日，百度官方文档可能已经更新，总体思路就是通过参数请求百度api，接收并解析api的响应数据。

这个是Web服务端，驾驶导航两点测距的api
百度链接
我写的是java版的测距
核心工具类代码：

public class MeasureUtil {

	private final static String DRIVING = "http://api.map.baidu.com/routematrix/v2/driving?output=json&tactics=12&ak=";

	public static String getDistance(String appkey, LatLng from, LatLng to)
			throws IOException {
		StringBuilder result = new StringBuilder();
		URL url = new URL(getURL(appkey, from, to));
		HttpURLConnection conn = (HttpURLConnection) url.openConnection();
		conn.setDoInput(true);
		conn.setDoOutput(true);
		conn.setUseCaches(false);
		conn.connect();
		BufferedReader bReader = new BufferedReader(new InputStreamReader(
				conn.getInputStream(), "utf-8"));
		String str = null;
		while ((str = bReader.readLine()) != null) {
			result.append(str);
		}
		bReader.close();
		conn.disconnect();
		return result.toString();
	}

	private static String getURL(String appkey, LatLng from, LatLng to) {
		StringBuilder url = new StringBuilder(DRIVING);
		url.append(appkey);
		if (from != null) {
			url.append("&origins=");
			url.append(from.getLat()).append(",").append(from.getLng());
		}
		if (to != null) {
			url.append("&destinations=");
			url.append(to.getLat()).append(",").append(to.getLng());
		}
		return url.toString();
	}

}

使用方法：

LatLng from = new LatLng();
		from.setLat(39.914935);
		from.setLng(116.405994);
		LatLng to = new LatLng();
		to.setLat(39.914492);
		to.setLng(116.46636);
		System.out.println(MeasureUtil.getDistance(你的秘钥, from, to));

测试结果：（这里我指定返回的是json）

{"status":0,"result":[{"distance":{"text":"6.5公里","value":6461},"duration":{"text":"17分钟","value":1004}}],"message":"成功"}

jar下载地址：https://download.csdn.net/download/u013271384/9971152

源码下载地址:https://download.csdn.net/download/u013271384/10385682