[高德开放平台] 定位对接

萌璐琉璃

https://www.jianshu.com/p/312287e25444

目标

对接高德开放平台的定位接口

依赖

<!-- httpclient 工具类 --><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.3</version></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpmime</artifactId><version>4.3</version></dependency>

工具类

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.sf.json.JSONObject;
import org.apache.http.client.HttpClient;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.alibaba.fastjson.JSONArray;/*** 定位相关工具* 参考：https://blog.csdn.net/u010235716/article/details/51538876*/
public class AddressUtils {// 高德地图API KEY，在高德地图开放平台可以申请到public static final String LBS_API_KEY = "xxxxxx";public static final String LBS_API_GET_LNG_LAT_URL = "http://restapi.amap.com/v3/geocode/geo";public static Double[] getLngAndLatByAmap(String address) throws Exception {address = address.trim();Map<String,String> pames = new HashMap<>();pames.put("address",URLEncoder.encode(address, "utf-8"));pames.put("output","json");pames.put("key",LBS_API_KEY);String json = HttpUtils.sendGet(LBS_API_GET_LNG_LAT_URL,pames);System.out.println(json);JSONObject jsonObject = JSONObject.fromObject(json).getJSONArray("geocodes").getJSONObject(0);Double[] rest = new Double[2];String location = jsonObject.getString("location");rest[0] = Double.valueOf(location.split(",")[0]);rest[1] = Double.valueOf(location.split(",")[1]);return rest;}
}

HttpUtils工具类

package com.zp.haveplace.util;import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.zip.GZIPInputStream;import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;/*** ClassName: HttpUtils* 参考: http://wiki.jikexueyuan.com/project/java-wechat/11.html* @Description: http 请求工具类* @author dapengniao* @date 2016 年 3 月 10 日 下午 3:57:14*/
@SuppressWarnings("deprecation")
public class HttpUtils {/*** @Description: http get 请求共用方法* @param @param reqUrl* @param @param params* @param @return* @param @throws Exception* @author dapengniao* @date 2016 年 3 月 10 日 下午 3:57:39*/@SuppressWarnings("resource")public static String sendGet(String reqUrl, Map<String, String> params)throws Exception {InputStream inputStream = null;HttpGet request = new HttpGet();try {String url = buildUrl(reqUrl, params);HttpClient client = new DefaultHttpClient();request.setHeader("Accept-Encoding", "gzip");request.setURI(new URI(url));HttpResponse response = client.execute(request);inputStream = response.getEntity().getContent();String result = getJsonStringFromGZIP(inputStream);return result;} finally {if (inputStream != null) {inputStream.close();}request.releaseConnection();}}/*** @Description: http post 请求共用方法* @param @param reqUrl* @param @param params* @param @return* @param @throws Exception* @author dapengniao* @date 2016 年 3 月 10 日 下午 3:57:53*/@SuppressWarnings("resource")public static String sendPost(String reqUrl, Map<String, String> params)throws Exception {try {Set<String> set = params.keySet();List<NameValuePair> list = new ArrayList<NameValuePair>();for (String key : set) {list.add(new BasicNameValuePair(key, params.get(key)));}if (list.size() > 0) {try {HttpClient client = new DefaultHttpClient();HttpPost request = new HttpPost(reqUrl);request.setHeader("Accept-Encoding", "gzip");request.setEntity(new UrlEncodedFormEntity(list, HTTP.UTF_8));HttpResponse response = client.execute(request);InputStream inputStream = response.getEntity().getContent();try {String result = getJsonStringFromGZIP(inputStream);return result;} finally {inputStream.close();}} catch (Exception ex) {ex.printStackTrace();throw new Exception("网络连接失败,请连接网络后再试");}} else {throw new Exception("参数不全，请稍后重试");}} catch (Exception ex) {ex.printStackTrace();throw new Exception("发送未知异常");}}/*** @Description: http post 请求 json 数据* @param @param urls* @param @param params* @param @return* @param @throws ClientProtocolException* @param @throws IOException* @author dapengniao* @date 2016 年 3 月 10 日 下午 3:58:15*/public static String sendPostBuffer(String urls, String params)throws ClientProtocolException, IOException {HttpPost request = new HttpPost(urls);StringEntity se = new StringEntity(params, HTTP.UTF_8);request.setEntity(se);// 发送请求@SuppressWarnings("resource")HttpResponse httpResponse = new DefaultHttpClient().execute(request);// 得到应答的字符串，这也是一个 JSON 格式保存的数据String retSrc = EntityUtils.toString(httpResponse.getEntity());request.releaseConnection();return retSrc;}/*** @Description: http 请求发送 xml 内容* @param @param urlStr* @param @param xmlInfo* @param @return* @author dapengniao* @date 2016 年 3 月 10 日 下午 3:58:32*/public static String sendXmlPost(String urlStr, String xmlInfo) {// xmlInfo xml 具体字符串try {URL url = new URL(urlStr);URLConnection con = url.openConnection();con.setDoOutput(true);con.setRequestProperty("Pragma:", "no-cache");con.setRequestProperty("Cache-Control", "no-cache");con.setRequestProperty("Content-Type", "text/xml");OutputStreamWriter out = new OutputStreamWriter(con.getOutputStream());out.write(new String(xmlInfo.getBytes("utf-8")));out.flush();out.close();BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));String lines = "";for (String line = br.readLine(); line != null; line = br.readLine()) {lines = lines + line;}return lines; // 返回请求结果} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return "fail";}private static String getJsonStringFromGZIP(InputStream is) {String jsonString = null;try {BufferedInputStream bis = new BufferedInputStream(is);bis.mark(2);// 取前两个字节byte[] header = new byte[2];int result = bis.read(header);// reset 输入流到开始位置bis.reset();// 判断是否是 GZIP 格式int headerData = getShort(header);// Gzip 流 的前两个字节是 0x1f8bif (result != -1 && headerData == 0x1f8b) {// LogUtil.i("HttpTask", " use GZIPInputStream  ");is = new GZIPInputStream(bis);} else {// LogUtil.d("HttpTask", " not use GZIPInputStream");is = bis;}InputStreamReader reader = new InputStreamReader(is, "utf-8");char[] data = new char[100];int readSize;StringBuffer sb = new StringBuffer();while ((readSize = reader.read(data)) > 0) {sb.append(data, 0, readSize);}jsonString = sb.toString();bis.close();reader.close();} catch (Exception e) {e.printStackTrace();}return jsonString;}private static int getShort(byte[] data) {return (data[0] << 8) | data[1] & 0xFF;}/*** 构建 get 方式的 url** @param reqUrl*            基础的 url 地址* @param params*            查询参数* @return 构建好的 url*/public static String buildUrl(String reqUrl, Map<String, String> params) {StringBuilder query = new StringBuilder();Set<String> set = params.keySet();for (String key : set) {query.append(String.format("%s=%s&", key, params.get(key)));}return reqUrl + "?" + query.toString();}}

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高德开放平台定位功能对接

[高德开放平台] 定位对接

目标

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