要求：獲取地址的詳情？

地圖：百度地圖

準備：你的AK（地址：http://lbsyun.baidu.com/index.php?title=%E9%A6%96%E9%A1%B5），只需要注冊申請就可以了。

HttpURLConnectionExample類碼：

package com.qiao.example.concurrency.example.controller;import lombok.extern.slf4j.Slf4j;import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.InputStreamReader; import java.net.URL; import java.util.regex.Matcher; import java.util.regex.Pattern;import javax.net.ssl.HttpsURLConnection;@Slf4j public class HttpURLConnectionExample {private final String USER_AGENT = "Mozilla/5.0";// HTTP POST請求void sendPost(String url) throws Exception {URL realUrl= new URL(null, url, new sun.net.www.protocol.https.Handler());HttpsURLConnection con= (HttpsURLConnection) realUrl.openConnection();//添加請求頭con.setRequestMethod("POST");con.setRequestProperty("User-Agent", USER_AGENT);con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");String urlParameters = "sn=C02G8416DRJM&cn=&locale=&caller=&num=12345";//發送Post請求con.setDoOutput(true);DataOutputStream wr = new DataOutputStream(con.getOutputStream());wr.writeBytes(urlParameters);wr.flush();wr.close();int responseCode = con.getResponseCode();System.out.println("\nSending 'POST' request to URL : " + url);System.out.println("Post parameters : " + urlParameters);System.out.println("Response Code : " + responseCode);BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));String inputLine;StringBuffer response = new StringBuffer();while ((inputLine = in.readLine()) != null) {response.append(inputLine);}in.close();// 通過json串獲取詳細地址String newAddress = json_getAddress(response.toString());System.out.println("打印輸出結果："+newAddress);}/** 通過JSON串獲取詳細地址** （其實只要兩個正則就可以了，但是一時沒想到）*/public static String json_getAddress(String response){// log.info(response);String z_z = "(\"address\":\")[\\u4e00-\\u9fa5]+.*?(\")"; //匹配JSON中address字段及內容String newAddress = matchReg(response,z_z);log.info("String:{}",newAddress);String z_z1 = ":\"(.*)\""; //address內容 ("addess":"*****"--->:"*****")newAddress = matchReg(newAddress,z_z1);log.info("newAddress3:{}",newAddress);newAddress = newAddress.substring(2,newAddress.length()-1); //截取詳細地址內容（:"*****"--->*****）return newAddress;}/** 調用正則表達式* */public static String matchReg(String str, String pattern) {Pattern r = Pattern.compile(pattern);Matcher m = r.matcher(str);if (m.find()) {return m.group();} else {return "";}}}

主類：

package com.qiao.example.concurrency.example.controller;import lombok.extern.slf4j.Slf4j;import java.util.regex.Matcher; import java.util.regex.Pattern;@Slf4j public class DetailedAddress {/** 輸入地址經過百度地圖之后輸出詳細地址** @param String address 模糊地址[區市、地址]* @return String address 詳細地址* */public static String detailed_address(String key){String url = "http://api.map.baidu.com/place/v2/search?query=key&region=city&output=json&ak=你的AK";//AK需要替換成你自己的url = url.replace("key",key); //添加新地址（模糊地址）url = url.replace("city","廈門"); //需要檢索地址的上一級（默認廈門）return url;}/** 調用正則表達式* */public static String matchReg(String str, String pattern) {Pattern r = Pattern.compile(pattern);Matcher m = r.matcher(str);if (m.find()) {return m.group();} else {return "";}}public static void main(String[] args) throws Exception {String key = "廈大大學";// log.info("Http:",(key));String address_url = detailed_address(key); // 替換為新的連接// 訪問Http請求HttpURLConnectionExample http = new HttpURLConnectionExample();http.sendPost(address_url);} }

歡迎評論，指點。

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