前天无意间在网上看到百度ApiStore，然后好奇就进去看了看。正好最近在某博培训Android，刚学到java基础。抱着锻炼的心态选择手机号码归属地查询api进行练手。api地址 （http://apis.baidu.com/apistore/mobilephoneservice/mobilephone）。百度官方已经给出请求示例 。我们只需要对请求结果json进行解析就可以。
Java请求示例：
1 String httpUrl = "http://apis.baidu.com/apistore/mobilephoneservice/mobilephone"; 2 String httpArg = "tel=15846530170"; 3 String jsonResult = request(httpUrl, httpArg); 4 System.out.println(jsonResult); 5 6 /** 7 * @param urlAll 8 * :请求接口 9 * @param httpArg 10 * :参数 11 * @return 返回结果 12 */ 13 public static String request(String httpUrl, String httpArg) { 14 BufferedReader reader = null; 15 String result = null; 16 StringBuffer sbf = new StringBuffer(); 17 httpUrl = httpUrl + "?" + httpArg; 18 19 try { 20 URL url = new URL(httpUrl); 21 HttpURLConnection connection = (HttpURLConnection) url 22 .openConnection(); 23 connection.setRequestMethod("GET"); 24 // 填入apikey到HTTP header 25 connection.setRequestProperty("apikey", "您自己的apikey"); 26 connection.connect(); 27 InputStream is = connection.getInputStream(); 28 reader = new BufferedReader(new InputStreamReader(is, "UTF-8")); 29 String strRead = null; 30 while ((strRead = reader.readLine()) != null) { 31 sbf.append(strRead); 32 sbf.append("\r\n"); 33 } 34 reader.close(); 35 result = sbf.toString(); 36 } catch (Exception e) { 37 e.printStackTrace(); 38 } 39 return result; 40 }
我们要做的是进行对请求返回结果result处理，百度给出了返回结果为json，那么就要对json进行解析输出。
百度给出的json返回示例：
1 { 2 errNum: 0, 3 errMsg: "success", 4 retData: { 5 telString: "15846530170", //手机号码 6 province: "黑龙江", //省份 7 carrier: "黑龙江移动" //运营商 8 } 9 }
对json解析需要用到json-lib.jar包，网上可以百度到。
json解析核心代码:
1 JSONObject obj = JSONObject.fromObject(jsonResult1); 2 String errNum = obj.getString("errNum");
演示示例：
1 package day02; 2 3 import java.io.BufferedReader; 4 import java.io.InputStream; 5 import java.io.InputStreamReader; 6 import java.net.HttpURLConnection; 7 import java.net.URL; 8 import net.sf.json.JSONObject; 9 10 public class Test11 { 11 12 /** 13 * 查询手机号码归属地 14 * @param args 15 */ 16 public static void main(String[] args) { 17 // TODO Auto-generated method stub 18 19 String httpUrl = "http://apis.baidu.com/apistore/mobilephoneservice/mobilephone"; 20 String httpArg = "tel=15768798455"; 21 String jsonResult1 = request(httpUrl, httpArg); 22 System.out.println(jsonResult1); 23 JSONObject obj = JSONObject.fromObject(jsonResult1); 24 String errNum = obj.getString("errNum"); 25 System.out.println(errNum); 26 String errMsg = obj.getString("errMsg"); 27 System.out.println(errMsg); 28 String retData = obj.getString("retData"); 29 JSONObject obj2 = JSONObject.fromObject(retData); 30 String telString = obj2.getString("telString"); 31 String province = obj2.getString("province"); 32 String carrier = obj2.getString("carrier"); 33 System.out.println("你查询号码："+telString+"\n"+"归属地："+province+"\n"+"运营商："+carrier); 34 35 } 36 37 /** 38 * @param urlAll 39 * :请求接口 40 * @param httpArg 41 * :参数 42 * @return 返回结果 43 */ 44 public static String request(String httpUrl, String httpArg) { 45 BufferedReader reader = null; 46 String result = null; 47 StringBuffer sbf = new StringBuffer(); 48 httpUrl = httpUrl + "?" + httpArg; 49 50 try { 51 URL url = new URL(httpUrl); 52 HttpURLConnection connection = (HttpURLConnection) url 53 .openConnection(); 54 connection.setRequestMethod("GET"); 55 // 填入apikey到HTTP header 56 connection.setRequestProperty("apikey", 57 "你的百度api秘钥"); 58 connection.connect(); 59 InputStream is = connection.getInputStream(); 60 reader = new BufferedReader(new InputStreamReader(is, "UTF-8")); 61 String strRead = null; 62 while ((strRead = reader.readLine()) != null) { 63 sbf.append(strRead); 64 sbf.append(strRead + " "); 65 } 66 reader.close(); 67 result = sbf.toString(); 68 } catch (Exception e) { 69 e.printStackTrace(); 70 } 71 return result; 72 } 73 74 }
输出结果：
1 {"errNum":0,"errMsg":"success","retData":{"telString":"15737954118","province":"\u6cb3\u5357","carrier":"\u6cb3\u5357\u79fb\u52a8"}}{"errNum":0,"errMsg":"success","retData":{"telString":"15737954118","province":"\u6cb3\u5357","carrier":"\u6cb3\u5357\u79fb\u52a8"}} 2 错误码：0 3 错误码返回：success 4 你查询号码：15737954118 5 归属地：河南 6 运营商：河南移动
自此百度手机号码归属地api体验成功结束，也是实训期间的练手。