Maven不构建项目（连接问题）

Question

I am getting this error while trying to do a clean install using Maven:

[INFO] Scanning for projects...
Downloading: http://xxx/repository/com/fusionone/device/d
evice-parent/3.5.0-BA-CLIENT-SNAPSHOT/maven-metadata.xml
Downloading: http://xxx/repository/com/fusionone/device/device-pare
nt/3.5.0-BA-CLIENT-SNAPSHOT/maven-metadata.xml
Downloading: http://xxx/repository/com/fusionone/devic
e/device-parent/3.5.0-BA-CLIENT-SNAPSHOT/maven-metadata.xml
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: I/O exception (java.net.SocketException) caught when connecting to the tar
get host: Permission denied: connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
May 24, 2012 5:55:56 PM org.apache.maven.wagon.providers.http.httpclient.impl.cl
ient.DefaultRequestDirector tryConnect
INFO: Retrying connect
[WARNING] Could not transfer metadata com.xxx.device:device-parent:3.5.0-B
A-CLIENT-SNAPSHOT/maven-metadata.xml from/to maestro-project-server (http://xxx): Permission denied: connect
[WARNING] Could not transfer metadata com.xxx.device:device-parent:3.5.0-B
A-CLIENT-SNAPSHOT/maven-metadata.xml from/to xxx-xxx-repo (http://xxx): Permission denied: connect
[WARNING] Could not transfer metadata com.xxx.device:device-parent:3.5.0-B
A-CLIENT-SNAPSHOT/maven-metadata.xml from/to re-repo (http://xx.xx.x.xxx:xxx/re
pository): Permission denied: connect

Answer 1

I have the same trouble with maven. I solve this by adding mirrors to maven setting.xml file

HERE are MIRRORS http://docs.codehaus.org/display/MAVENUSER/Mirrors+Repositories

and documentation http://maven.apache.org/settings.html#Mirrors

Answer 2

When Maven fetches the dependencies and the parent projects, it throws a Permission denied: connect error.
I have found that the issue may be related to a known bug in JDK 1.7 and Windows 7. The issue have either been with the application not fully supporting IPv6 or with a network/firewall that does not fully support IPv6. The workaround is to set -Djava.net.preferIPv4Stack=true in the Java or Maven command line arguments.

Answer 3

That's pretty obvious: "Permission denied". That's it. Repository (one of them) you're using needs you to authenticate and authorize yourself before acccess. You should stop using this repository if you really don't have access or put your login/password eg into your settings.xml file like this so Maven can introduce you to the server :).