[GitHub] [skywalking] wuguanyu commented on issue #7758: [Bug] java.lang.NumberFormatException in MysqlURLParser

[GitBox <gi...@apache.org>]

wuguanyu commented on issue #7758:
URL: https://github.com/apache/skywalking/issues/7758#issuecomment-922958662


     @Override
       public ConnectionInfo parse() {
           URLLocation location = fetchDatabaseHostsIndexRange();
           String hosts = url.substring(location.startIndex(), location.endIndex());
           String[] hostSegment = hosts.split(",");
           if (hostSegment.length > 1) {
               StringBuilder sb = new StringBuilder();
               for (String host : hostSegment) {
                   if (host.split(":").length == 1) {
                       sb.append(host).append(":").append(DEFAULT_PORT).append(",");
                   } else {
                       sb.append(host).append(",");
                   }
               }
               return new ConnectionInfo(component, dbType, sb.substring(0, sb.length() - 1), fetchDatabaseNameFromURL());
           } else {
               String[] hostAndPort = hostSegment[0].split(":");
               if (hostAndPort.length != 1) {
                   return new ConnectionInfo(component, dbType, hostAndPort[0], Integer.valueOf(hostAndPort[1]), fetchDatabaseNameFromURL(location
                           .endIndex()));
               } else {
                   return new ConnectionInfo(component, dbType, hostAndPort[0], DEFAULT_PORT, fetchDatabaseNameFromURL(location
                           .endIndex()));
               }
           }
       }
   The following java code throw NumberFormat exception Beacause of jdbcUrl have no db information
   Integer.valueOf(hostAndPort[1])


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