tomcat 7 mavenプラグインが欲しいのですが、[プラグインサイト][1]の指示に従いました。何が起こったのかというと、tomcat 6.0.29は検出できたようですが、バージョン7は検出できなかったようです。tomcat：runを試したときに開始されたのは6.0.29バージョンであるためです。
私の知る限り、t7のプラグインはまだ開発中であるため、スナップショットバージョンであり、スナップショットプラグインのリポジトリを提供する必要があると想定し、配置しました。
<pluginRepository>
<id>tomcat snapshot</id>
<name>tomcat snapshot</name>
<url>http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/</url>
</pluginRepository>
しかし、tomcat：run -U（スナップショットを更新するため）では変更がないようですが、6.xバージョンは実行されています。これが私のmvntomcat：info -Uの出力です：
C:\Users\albert\workspace\BasicSetup>mvn tomcat:info -U
[INFO] Scanning for projects...
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/apache
/tomcat/maven/tomcat7-maven-plugin/2.0-SNAPSHOT/maven-metadata.xml
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/apache
/tomcat/maven/tomcat7-maven-plugin/2.0-SNAPSHOT/maven-metadata.xml
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/apache
/tomcat/maven/tomcat7-maven-plugin/2.0-SNAPSHOT/tomcat7-maven-plugin-2.0-SNAPSHOT.pom
[WARNING] The POM for org.apache.tomcat.maven:tomcat7-maven-plugin:jar:2.0-SNAPSHOT is missing, no d
ependency information available
[WARNING] Failed to retrieve plugin descriptor for org.apache.tomcat.maven:tomcat7-maven-plugin:2.0-
SNAPSHOT: Plugin org.apache.tomcat.maven:tomcat7-maven-plugin:2.0-SNAPSHOT or one of its dependencie
s could not be resolved: Failed to read artifact descriptor for org.apache.tomcat.maven:tomcat7-mave
n-plugin:jar:2.0-SNAPSHOT
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-metadata.xml
Downloading: http://repo1.maven.org/maven2/org/codehaus/mojo/maven-metadata.xml
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/codeha
us/mojo/maven-metadata.xml
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/apache
/maven/plugins/maven-metadata.xml
Downloaded: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-metadata.xml (11 KB at 6.1
KB/sec)
Downloaded: http://repo1.maven.org/maven2/org/codehaus/mojo/maven-metadata.xml (18 KB at 10.7 KB/sec
)
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/codeha
us/mojo/tomcat-maven-plugin/maven-metadata.xml
Downloading: http://repo1.maven.org/maven2/org/codehaus/mojo/tomcat-maven-plugin/maven-metadata.xml
Downloaded: http://repo1.maven.org/maven2/org/codehaus/mojo/tomcat-maven-plugin/maven-metadata.xml (
439 B at 0.1 KB/sec)
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building BasicSetup Maven Webapp 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/apache
/tomcat/maven/tomcat7-maven-plugin/2.0-SNAPSHOT/tomcat7-maven-plugin-2.0-SNAPSHOT.pom
[WARNING] The POM for org.apache.tomcat.maven:tomcat7-maven-plugin:jar:2.0-SNAPSHOT is missing, no d
ependency information available
[WARNING] Failed to retrieve plugin descriptor for org.apache.tomcat.maven:tomcat7-maven-plugin:2.0-
SNAPSHOT: Plugin org.apache.tomcat.maven:tomcat7-maven-plugin:2.0-SNAPSHOT or one of its dependencie
s could not be resolved: Failed to read artifact descriptor for org.apache.tomcat.maven:tomcat7-mave
n-plugin:jar:2.0-SNAPSHOT
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-metadata.xml
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/codeha
us/mojo/maven-metadata.xml
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/apache
/maven/plugins/maven-metadata.xml
Downloading: http://repo1.maven.org/maven2/org/codehaus/mojo/maven-metadata.xml
Downloaded: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-metadata.xml (11 KB at 6.0
KB/sec)
Downloaded: http://repo1.maven.org/maven2/org/codehaus/mojo/maven-metadata.xml (18 KB at 4.4 KB/sec)
Downloading: http://people.apache.org/repo/m2-snapshot-repository/org/apache/tomcat/maven/org/codeha
us/mojo/tomcat-maven-plugin/maven-metadata.xml
Downloading: http://repo1.maven.org/maven2/org/codehaus/mojo/tomcat-maven-plugin/maven-metadata.xml
Downloaded: http://repo1.maven.org/maven2/org/codehaus/mojo/tomcat-maven-plugin/maven-metadata.xml (
439 B at 0.2 KB/sec)
[INFO]
[INFO] --- tomcat-maven-plugin:1.1:info (default-cli) @ BasicSetup ---
[INFO] Listing server information at http://localhost:8080/manager
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 36.348s
[INFO] Finished at: Wed Oct 26 14:28:40 ICT 2011
[INFO] Final Memory: 5M/15M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:tomcat-maven-plugin:1.1:info (default-cli) on proje
ct BasicSetup: Cannot invoke Tomcat manager: Connection refused: connect -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following arti
cles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
どんな助けでもいただければ幸いです。