在 Maven Ant 任务期间“无法登录到 FTP 服务器” – 但可以使用相同的凭据登录 GUI FTP 客户端

问题描述 投票：0回答：2

我有一个 Maven 构建，一旦打包完成，我尝试使用特定配置文件将一些文件从打包发送到 FTP 服务器。问题是，每当我尝试这样做时，我都会遇到 Maven 失败：

Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.3:run 
(deploy) on project xxx.xxx.xxx.xxx: An Ant BuildException has occured: 
Could not login to FTP server

这非常令人困惑，因为我能够使用 FileZilla 和用于 Maven Ant 构建任务的相同凭据登录 FTP 服务器，没有任何问题（在同一台机器上）。我还可以通过 FileZilla 双向传输文件，也没有任何问题。

在我最近重新启动例行服务器之前，这曾经工作得很好。我的 FTP 服务器是安装了标准 Ubuntu 操作系统和 VSFTPD 的 DigitalOcean Droplet。

我的

pom.xml
如下：

...
<profile>
  <id>publish-product</id>
  <activation>
    <activeByDefault>false</activeByDefault>
  </activation>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-antrun-plugin</artifactId>
        <executions>
          <execution>
            <id>deploy</id>
            <phase>package</phase>
            <goals>
              <goal>run</goal>
            </goals>
            <configuration>
              <tasks>
                <ftp
                    server="${env.DEPLOY_FTP_SERVER}"
                    remotedir="${env.DEPLOY_FTP_DIR}"
                    userid="${env.DEPLOY_FTP_USERNAME}"
                    password="${env.DEPLOY_FTP_PASSWORD}"
                    umask="002"
                    passive="yes">
                        <fileset dir="target/repository">
                        <include name="**/*" />
                    </fileset>
                </ftp>
              </tasks>
            </configuration>
          </execution>
          </executions>
            <dependencies>
              <dependency>
                <groupId>org.apache.ant</groupId>
                  <artifactId>ant-commons-net</artifactId>
                <version>1.10.9</version>
              </dependency>
            </dependencies>
          </plugin>
      </plugins>
  </build>
<profile>
...

Maven 构建是使用以下命令执行的：

mvn -U -DskipTests clean package -Ppublish-product

有谁知道可能会发生什么情况来阻止 Ant FTP 任务运行？

Ant任务的完整输出如下：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.3:run (deploy) on project xxxx.xxxx.xxxx.xxxx: An Ant BuildException has occured: Could not login to FTP server -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.3:run (deploy) on project xxxx.xxxx.xxxx.xxxx: An Ant BuildException has occured: Could not login to FTP server
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: An Ant BuildException has occured: Could not login to FTP server
    at org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks (AbstractAntMojo.java:131)
    at org.apache.maven.plugin.antrun.AntRunMojo.execute (AntRunMojo.java:98)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: org.apache.tools.ant.BuildException: Could not login to FTP server
    at org.apache.tools.ant.taskdefs.optional.net.FTP.execute (FTP.java:2528)
    at org.apache.tools.ant.UnknownElement.execute (UnknownElement.java:288)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute (DispatchUtils.java:106)
    at org.apache.tools.ant.Task.perform (Task.java:348)
    at org.apache.tools.ant.Target.execute (Target.java:357)
    at org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks (AbstractAntMojo.java:118)
    at org.apache.maven.plugin.antrun.AntRunMojo.execute (AntRunMojo.java:98)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)

我的FileZilla会话的详细日志如下：

Status: Resolving address of myftpserver.xxxx.xxxx
Status: Connecting to 218.86.381.231:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Logged in
Status: Retrieving directory listing...
Status: Directory listing of "/" successful
Status: Connection closed by server
Status: Resolving address of myftpserver.xxxx.xxxx
Status: Connecting to 218.86.381.231:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Logged in
Status: Retrieving directory listing of "/"...
Status: Directory listing of "/" successful
Status: Resolving address of myftpserver.xxxx.xxxx
Status: Connecting to 218.86.381.231:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Logged in
Status: Starting upload of D:\logo.pdf
Status: File transfer successful, transferred 1,260 bytes in 1 second
Status: Retrieving directory listing of "/"...
Status: Calculating timezone offset of server...
Status: Timezone offset of server is 0 seconds.
Status: Directory listing of "/" successful
Status: Deleting "/logo.pdf"
Status: Disconnected from server
Status: Connection closed by server
Status: Resolving address of myftpserver.xxxx.xxxx
Status: Connecting to 218.86.381.231:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Logged in
Status: Retrieving directory listing of "/"...
Status: Directory listing of "/" successful
Status: Connection closed by server
Status: Resolving address of myftpserver.xxxx.xxxx
Status: Connecting to 218.86.381.231:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Logged in
Status: Starting upload of D:\logo.pdf
Status: File transfer successful, transferred 1,260 bytes in 1 second
Status: Retrieving directory listing of "/"...
Status: Directory listing of "/" successful
maven ant ftp digital-ocean
2个回答
1
投票

“无法登录 FTP 服务器” 错误表示您的凭据错误。当 

FTPClient.login
失败时，会发出该错误。

我发现您已通过 GUI FTP 客户端进行身份验证来验证您拥有正确的凭据。因此，凭证中可能存在一些特殊字符，可能需要进行一些转义或特殊处理。

0
投票

当 FTP 服务器使用 TLS 时，可能会遇到类似的问题。 Ant 插件不支持 FTPS。

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