- import java.io.BufferedReader;
- import java.io.DataOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.InputStreamReader;
- import java.io.UnsupportedEncodingException;
- import java.net.HttpURLConnection;
- import java.net.URL;
- import java.net.URLEncoder;
- import java.util.HashMap;
- import java.util.Map;
- import net.sf.json.JSONObject;
- /**
- *谷歌POI调用示例代码 - 聚合数据
- *在线接口文档:http://www.juhe.cn/docs/9
- **/
- public class JuheDemo {
- public static final String DEF_CHATSET = "UTF-8";
- public static final int DEF_CONN_TIMEOUT = 30000;
- public static final int DEF_READ_TIMEOUT = 30000;
- public static String userAgent = "Mozilla/5.0 (Windows NT 6.1) ApplewebKit/537.36 (Khtml, like Gecko) Chrome/29.0.1547.66 Safari/537.36";
- //配置您申请的KEY
- public static final String APPKEY ="*************************";
- //1.获取数据分类
- public static void getRequest1(){
- String result =null;
- String url ="http://apis.juhe.cn/google/category";//请求接口地址
- Map<String, Object> params = new HashMap<String, Object>();//请求参数
- params.put("fid","");//所属分类ID,默认空,即全部分类,否则返回指定分类下的子类
- params.put("dtype","");//返回数据的格式,xml或json,默认json
- params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
- try {
- result =net(url, params, "GET");
- JSONObject object = JSONObject.fromObject(result);
- if(object.getInt("error_code")==0){
- System.out.println(object.get("result"));
- }else{
- System.out.println(object.get("error_code")+":"+object.get("reason"));
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- //2.指定城市内检索
- public static void getRequest2(){
- String result =null;
- String url ="http://apis.juhe.cn/google/region";//请求接口地址
- Map<String, Object> params = new HashMap<String, Object>();//请求参数
- params.put("citycode","");//城市的区号,如:021
- params.put("cid","");//分类ID,可从分类接口获取到,默认全部
- params.put("keyword","");//关键字,不支持多关键字
- params.put("page","");//页数,默认1 最大50.
- params.put("pnums","");//每次返回数据数目,默认20,最大20
- params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
- params.put("dtype","");//返回数据的格式,xml或json,默认json
- try {
- result =net(url, params, "GET");
- JSONObject object = JSONObject.fromObject(result);
- if(object.getInt("error_code")==0){
- System.out.println(object.get("result"));
- }else{
- System.out.println(object.get("error_code")+":"+object.get("reason"));
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- //3.检索周边区域
- public static void getRequest3(){
- String result =null;
- String url ="http://apis.juhe.cn/google/local";//请求接口地址
- Map<String, Object> params = new HashMap<String, Object>();//请求参数
- params.put("lng","");//经纬(如:121.538123),传递的应该是google地图的经纬度
- params.put("lat","");//纬度(如:31.677132)
- params.put("cid","");//所属分类ID
- params.put("r","");//搜索范围,单位M,默认1000
- params.put("page","");//当前页数,默认1,最大50.
- params.put("pnums","");//每次返回数据条数,默认20,最大20
- params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
- params.put("dtype","");//返回数据的格式,xml或json,默认json
- try {
- result =net(url, params, "GET");
- JSONObject object = JSONObject.fromObject(result);
- if(object.getInt("error_code")==0){
- System.out.println(object.get("result"));
- }else{
- System.out.println(object.get("error_code")+":"+object.get("reason"));
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- public static void main(String[] args) {
- }
- /**
- *
- * @param strUrl 请求地址
- * @param params 请求参数
- * @param method 请求方法
- * @return 网络请求字符串
- * @throws Exception
- */
- public static String net(String strUrl, Map<String, Object> params,String method) throws Exception {
- HttpURLConnection conn = null;
- BufferedReader reader = null;
- String rs = null;
- try {
- StringBuffer sb = new StringBuffer();
- if(method==null || method.equals("GET")){
- strUrl = strUrl+"?"+urlencode(params);
- }
- URL url = new URL(strUrl);
- conn = (HttpURLConnection) url.openConnection();
- if(method==null || method.equals("GET")){
- conn.setRequestMethod("GET");
- }else{
- conn.setRequestMethod("POST");
- conn.setDoOutput(true);
- }
- conn.setRequestProperty("User-agent", userAgent);
- conn.setUseCaches(false);
- conn.setConnectTimeout(DEF_CONN_TIMEOUT);
- conn.setReadTimeout(DEF_READ_TIMEOUT);
- conn.setInstanceFollowRedirects(false);
- conn.connect();
- if (params!= null && method.equals("POST")) {
- try (DataOutputStream out = new DataOutputStream(conn.getOutputStream())) {
- out.writeBytes(urlencode(params));
- }
- }
- InputStream is = conn.getInputStream();
- reader = new BufferedReader(new InputStreamReader(is, DEF_CHATSET));
- String strRead = null;
- while ((strRead = reader.readLine()) != null) {
- sb.append(strRead);
- }
- rs = sb.toString();
- } catch (IOException e) {
- e.printStackTrace();
- } finally {
- if (reader != null) {
- reader.close();
- }
- if (conn != null) {
- conn.disconnect();
- }
- }
- return rs;
- }
- //将map型转为请求参数型
- public static String urlencode(Map<String, ?> data) {
- StringBuilder sb = new StringBuilder();
- for (Map.Entry<String, ?> i : data.entrySet()) {
- try {
- sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue()+"","UTF-8")).append("&");
- } catch (UnsupportedEncodingException e) {
- e.printStackTrace();
- }
- }
- return sb.toString();
- }
- }
- //该片段来自于http://www.codesnippet.cn/detail/0609201615046.html
来源: http://www.codesnippet.cn/detail/0609201615046.html