通过地址查询邮编

野性酷女 2022-03-20 14:50 360阅读 0赞

如查询北京市东城区长安街的邮编，可以通过以下地址查询

<table> 
 <tbody> 
  <tr> 
   <td><a href="http://cpdc.chinapost.com.cn/web/index.php?m=postsearch&amp;c=index&amp;a=ajax_addr&amp;searchkey=%E5%8C%97%E4%BA%AC%E5%B8%82%E4%B8%9C%E5%9F%8E%E5%8C%BA%E9%95%BF%E5%AE%89%E8%A1%97" rel="nofollow">http://cpdc.chinapost.com.cn/web/index.php?m=postsearch&amp;c=index&amp;a=ajax_addr&amp;searchkey=北京市东城区长安街</a></td> 
  </tr> 
 </tbody> 
</table>

返回json串格式化后为，rs对应的数组为该地址对应的邮编，可以按需求选取

<table> 
 <tbody> 
  <tr> 
   <td> <pre>{
    "su": true, 
    "errcode": 0, 
    "rs": [
        {
            "ADDR": "北京市密云县长安街0", 
            "POSTCODE": "101599"
        }, 
        {
            "ADDR": "北京市密云县长安街10号", 
            "POSTCODE": "101599"
        }, 
        {
            "ADDR": "北京市密云县长安街11号", 
            "POSTCODE": "101599"
        }
    ], 
    "pageinfo": {
        "CURRENTPAGE": "1", 
        "TOTALPAGE": "1", 
        "ITEMCOUNT": 3
    }, 
    "searchkey": "北京市东城区长安街", 
    "checkcode": true, 
    "now_num": 3, 
    "pageshtml": ""
}</pre> </td> 
  </tr> 
 </tbody> 
</table>

当查询的地址不存在时，如随便输入的字母串[adsaffgrjdg][]

<table> 
 <tbody> 
  <tr> 
   <td><a href="http://cpdc.chinapost.com.cn/web/index.php?m=postsearch&amp;c=index&amp;a=ajax_addr&amp;searchkey=adsaffgrjdg" rel="nofollow">http://cpdc.chinapost.com.cn/web/index.php?m=postsearch&amp;c=index&amp;a=ajax_addr&amp;searchkey=adsaffgrjdg</a></td> 
  </tr> 
 </tbody> 
</table>

返回体如下，此时rs对应数组为空数组

<table> 
 <tbody> 
  <tr> 
   <td> <pre>{
    "su": true, 
    "errcode": 0, 
    "rs": [ ], 
    "pageinfo": {
        "CURRENTPAGE": "0", 
        "TOTALPAGE": "0", 
        "ITEMCOUNT": 0
    }, 
    "searchkey": "adsaffgrjdg", 
    "checkcode": true, 
    "now_num": 0, 
    "pageshtml": ""
}</pre> </td> 
  </tr> 
 </tbody> 
</table>

调用接口方式网上一搜一大堆，这里只写个供参考，传入参数为拼接后的 地址即可

public static String getConnection(String path) throws  Exception{
            URL url = new URL(path);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.connect();
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(),"UTF-8"));
            String line ;
            StringBuilder sb = new StringBuilder();
            while((line=reader.readLine())!=null){
                sb.append(line);
            }
            connection.disconnect();
            return sb.toString();
    
        }

[adsaffgrjdg]: http://cpdc.chinapost.com.cn/web/index.php?m=postsearch&c=index&a=ajax_addr&searchkey=adsaffgrjdg