wuguanyu edited a comment 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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