高德地图根据地址获取经纬度

/**
     * 根据地址获取经纬度信息
     * @param address
     * @return
     */
    public static Map<String,String> getPotByaddress(String address,String city){
        String url = "http://restapi.amap.com/v3/geocode/geo?output=JSON&key="+"****你自己的key*****"+"&city="+city;
//       String url = "http://restapi.amap.com/v3/geocode/geo?address="+address+"&output=JSON&key="+"****你自己的key*****";
        JSONObject obj;
        Map<String,String> data = new HashMap<>();
        obj = JSONObject.parseObject(HttpUtilnew.getRequest(url,"address:"+address));
        String status = obj.getString("status");
        String count = obj.getString("count");
        if ("1".equals(status) && !"0".equals(count)){
            String location = obj.getJSONArray("geocodes").getJSONObject(0).getString("location");
            data.put("code","1");
            data.put("location",location);
        }else{
            data.put("code",obj.getString("info"));
            data.put("msg","未获取经纬度，请检查地址信息");
        }
        return data;
    }

 这个HttpUtilnew工具类

/**
 *
 * @author Administrator
 */
public class HttpUtilnew {
            // 连接超时时间
        private static final int CONNECTION_TIMEOUT = 3000;
        //读取超时时间
        private static final int READ_TIMEOUT = 5000;
        // 参数编码
        private static final String ENCODE_CHARSET = "utf-8";
        /**
        * 发送HTTP_POST请求
        * @param reqURL
        * 请求地址
        * @param params
        * 发送到远程主机的正文数据[a:1,b:2]
        * @return String
        */
        public static String postRequest(String reqURL, String... params) {
        StringBuilder resultData = new StringBuilder();
        URL url = null;
        try {
        url = new URL(reqURL);
        } catch (MalformedURLException e) {
        e.printStackTrace();
        }
        HttpURLConnection urlConn = null;
        InputStreamReader in = null;
        BufferedReader buffer = null;
        String inputLine = null;
        DataOutputStream out = null;
        if (url != null) {
        try {
        urlConn = (HttpURLConnection) url.openConnection();
        urlConn.setDoInput(true);// 设置输入流采用字节流
        urlConn.setDoOutput(true);// 设置输出流采用字节流
        urlConn.setRequestMethod("POST");
        urlConn.setUseCaches(false); // POST请求不能使用缓存
        urlConn.setInstanceFollowRedirects(true);
        urlConn.setConnectTimeout(CONNECTION_TIMEOUT);// 设置连接超时
        urlConn.setReadTimeout(READ_TIMEOUT); // 设置读取超时
        // 配置本次连接的Content-type，配置为application/x-www-form-urlencoded的
        urlConn.setRequestProperty("Content-Type",
        "application/x-www-form-urlencoded");
        urlConn.setRequestProperty("Charset", ENCODE_CHARSET);//
        String param = sendPostParams(params);
        urlConn.setRequestProperty("Content-Length",
        param.getBytes().length + "");//
        // urlConn.setRequestProperty("Connection", "Keep-Alive");
        // //设置长连接
        urlConn.connect();// 连接服务器发送消息
        if (!"".equals(param)) {
        out = new DataOutputStream(urlConn.getOutputStream());
        // 将要上传的内容写入流中
        out.writeBytes(param);
        // 刷新、关闭
        out.flush();
        out.close();
        }
        in = new InputStreamReader(urlConn.getInputStream(),
        HttpUtilnew.ENCODE_CHARSET);
        buffer = new BufferedReader(in);
        if (urlConn.getResponseCode() == 200) {
        while ((inputLine = buffer.readLine()) != null) {
        resultData.append(inputLine);
        }
        }
        } catch (IOException e) {
        e.printStackTrace();
        } finally {
        try {
        if (buffer != null) {
        buffer.close();
        }
        if (in != null) {
        in.close();
        }
        if (urlConn != null) {
        urlConn.disconnect();
        }
        } catch (IOException e) {
        e.printStackTrace();
        }
        }
        }
        return resultData.toString();
        }
        /**
        * 发送HTTP_GET请求
        *
        * @see
        * @param httpUrl
        * 请求地址
        * @param
        * @return String
        */
        public static String getRequest(String httpUrl, String... params) {
        StringBuilder resultData = new StringBuilder();
        URL url = null;
        try {
        String paramurl = sendGetParams(httpUrl, params);
        url = new URL(paramurl);
        } catch (MalformedURLException e) {
        e.printStackTrace();
        }
        HttpURLConnection urlConn = null;
        InputStreamReader in = null;
        BufferedReader buffer = null;
        String inputLine = null;
        if (url != null) {
        try {
        urlConn = (HttpURLConnection) url.openConnection();
        urlConn.setRequestMethod("GET");
        urlConn.setConnectTimeout(CONNECTION_TIMEOUT);
        in = new InputStreamReader(urlConn.getInputStream(),
        HttpUtilnew.ENCODE_CHARSET);
        buffer = new BufferedReader(in);
        if (urlConn.getResponseCode() == 200) {
        while ((inputLine = buffer.readLine()) != null) {
        resultData.append(inputLine);
        }
        }
        } catch (IOException e) {
        e.printStackTrace();
        } finally {
        try {
        if (buffer != null) {
        buffer.close();
        }
        if (in != null) {
        in.close();
        }
        if (urlConn != null) {
        urlConn.disconnect();
        }
        } catch (IOException e) {
        e.printStackTrace();
        }
        }
        }
        return resultData.toString();
        }
        /**
        * Post追加参数
        *
        * @see <code>params</code>
        * 请求地址
        * @param params
        * 发送到远程主机的正文数据[a:1,b:2]
        * @return
        */
        private static String sendPostParams(String... params) {
        StringBuilder sbd = new StringBuilder("");
        if (params != null && params.length > 0) {
        for (int i = 0; i < params.length; i++) {
        String[] temp = params[i].split(":");
        sbd.append(temp[0]);
        sbd.append("=");
        sbd.append(urlEncode(temp[1]));
        sbd.append("&");
        }
        sbd.setLength(sbd.length() - 1);// 删掉最后一个
        }
        return sbd.toString();
        }
        /**
        * Get追加参数
        *
        * @see <code>params</code>
        * @param reqURL
        * 请求地址
        * @param params
        * 发送到远程主机的正文数据[a:1,b:2]
        * @return
        */
        private static String sendGetParams(String reqURL, String... params) {
        StringBuilder sbd = new StringBuilder(reqURL);
        if (params != null && params.length > 0) {
            if (isexist(reqURL, "?")) {// 存在?
            sbd.append("&");
            } else {
            sbd.append("?");
            }
        for (int i = 0; i < params.length; i++) {
            String[] temp = params[i].split(":");
            sbd.append(temp[0]);
            sbd.append("=");
            sbd.append(urlEncode(temp[1]));
            sbd.append("&");
        }
            sbd.setLength(sbd.length() - 1);// 删掉最后一个
        }
            return sbd.toString();
        }
        // 查找某个字符串是否存在
        private static boolean isexist(String str, String fstr) {
            return str.indexOf(fstr) == -1 ? false : true;
        }
        /**
        * 编码
        *
        * @param source
        * @return
        */
        private static String urlEncode(String source) {
        String result = source;
        try {
            result = java.net.URLEncoder
            .encode(source, HttpUtilnew.ENCODE_CHARSET);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
            return result;
        }
        
}