java之解析DNS的SRV记录

1、导入相应的jar包

       导入sjava-2.1.6.jar包，今天上传资源有问题，下次传了之后再补充到这里。

2、关键代码

       public static List<String> resoveSrv(String query) {
       // String s = "ramuh.example.com";  // the inputted string, I need to obtain the Port to be added to this
       ArrayList<String> ret = new ArrayList<String>();
       // String query = "_rdp._tcp." + s;
       try{
       Record[] records = new Lookup(query,Type.SRV).run();  // returning null
       if(records != null && records.length > 0) {
       for(Record r : records) {
       SRVRecord srv = (SRVRecord)r;
       String hostname = srv.getTarget().toString().replaceFirst("\\.$", "");
       int port = srv.getPort();
       ret.add(hostname + ":" + port);
       }
       return ret;
       }
       else{
       return null;
       }
       } catch (TextParseException e) {
       return null;
       }
       }
  
 

2、4行是注释掉的

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原文链接：chenyu.blog.csdn.net/article/details/58588545