Maven编译TimeOut错误

Question

I need to compile with a prod maven profile, so I execute the command:

mvnw package -Pprod  -Dmaven.test.skip=true

But it gives me a Connection TimeOut error:

C:\Users\UserX\Desktop\Workspace\mecenz>mvnw package -Pprod  -Dmaven.test.skip=tru
Downloading https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.3.9/apache-maven-3.3.9-bin.zip

Exception in thread "main" java.net.ConnectException: Connection timed out: connect
        at java.net.DualStackPlainSocketImpl.connect0(Native Method)
        at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:668)
        at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
        at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
        at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1105)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:999)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
        at org.apache.maven.wrapper.DefaultDownloader.downloadInternal(DefaultDownloader.java:73)
        at org.apache.maven.wrapper.DefaultDownloader.download(DefaultDownloader.java:60)
        at org.apache.maven.wrapper.Installer.createDist(Installer.java:64)
        at org.apache.maven.wrapper.WrapperExecutor.execute(WrapperExecutor.java:121)
        at org.apache.maven.wrapper.MavenWrapperMain.main(MavenWrapperMain.java:50)

Here I have configured the proxy as it should be in the settings.xml of maven:

<proxies>
<proxy>    
  <id>the_id</id>
  <active>true</active>
  <protocol>http</protocol>
    <!--  <username>proxyuser</username>
    <password>proxypass</password>-->
  <host>my proxy adresse</host>
  <port>8080</port>
  <nonProxyHosts>localhost</nonProxyHosts>
</proxy>
</proxies>

I really don't know what should I do more!

I have changed this URL in maven-wrraper.properties into: https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.3.9/apache-maven-3.3.9-bin.zip and yet gives me the same error.

How would you troubleshoot this?

Answer 1

You could simply set your HTTP_PROXY / HTTPS_PROXY environment variables to the same value as the one set in your settings.xml, and download maven yourself, without having to rely on an mvnw maven wrapper (presented in this article )

Simply fo to the Downloading Apache Maven 3.5.0 page, and get the Binary zip archive that you can uncompress anywhere you want. Add that folder to your PATH and you are set to use a regular mvn command.