BlogJava-初一七月-随笔分类-Maven

package阶段跳过test

初一七月 — Tue, 05 Nov 2013 09:21:00 GMT

1.命令行方式
跳过测试

1 mvn package -DskipTests

跳过编译和测试

1 mvn package -Dmaven.test.skip=true

2.pom.xml配置文件方式

1 <project>
2   []
3   <build>
4     <plugins>
5       <plugin>
6         <groupId>org.apache.maven.pluginsgroupId>
7         <artifactId>maven-surefire-pluginartifactId>
8         <version>2.4.2version>
9         <configuration>
10           <skipTests>trueskipTests>
11         configuration>
12       plugin>
13     plugins>
14   build>
15   []
16 project>
17

初一七月 2013-11-05 17:21 发表评论

MyEclipse 6.5安装maven插件

初一七月 — Tue, 05 Nov 2013 08:19:00 GMT

一、卸载原有maven插件

MyEclipse 6.5集成了Maven插件，不过有不少bug，用习惯了m2eclipse，不想在这上面浪费时间。要安装m2eclipse，需要先把自带的maven插件卸载掉，卸载步骤如下：
1.删除/eclipse/features/com.genuitec.myeclipse.maven_6.5.1.zmyeclipse650200806目录
2.进入plugins目录，删除以下目录及jar包

1 com.genuitec.myeclipse.maven_6.5.1.zmyeclipse650200806
2 org.maven.ide.components.archetype_common_2.0.0.20080331-1600
3 org.maven.ide.components.maven_embedder_2.1.0.20080410-2200
4 org.maven.ide.components.maven_model_edit_1.0.0.20080331-1600
5 org.maven.ide.components.maven_scm_1.0.0.20080410-2200
6 org.maven.ide.components.nexus_indexer_1.0.0.20080331-1600
7 org.maven.ide.components.qname_1.0.0.20080331-1600
8 com.genuitec.eclipse.maven_6.5.1.zmyeclipse650200806.jar
9 org.maven.ide.eclipse.central_0.9.1.zmyeclipse650200806.jar
10 org.maven.ide.eclipse.scm_0.9.2.zmyeclipse650200806.jar
11 org.maven.ide.eclipse_0.9.3.zmyeclipse650200806.jar

二、在线安装m2eclipse

1.Help -> Find and Install ->Search for new features to install->New Remote Site

1 name：m2eclipse
2 url：http://m2eclipse.sonatype.org/sites/m2e/0.10.0.20100209-0800/

2.点击Finish，开始自动搜索。这个链接之前是好用的，不过今天再下载总是提示错误，直接访问也提示内容找不到，看来是挪地方了。最后在官网找到这个帖子Where did http://m2eclipse.sonatype.org/sites/m2e go?根据提示找到了最新地址http://repository.sonatype.org/content/sites/forge-sites/m2e/
帖子内容

As of June 2013, that site has been shut down because M2Eclipse was moved to the Eclipse Foundation years ago.

You can access the archived M2Eclipse sites (including 0.12) here:

https://repository.sonatype.org/content/sites/forge-sites/m2e/

For more information on how to access current m2e releases, see http://eclipse.org/m2e/download/.

所以上面的地址变成了这样

1 name:m2eclipse
2 url:http://repository.sonatype.org/content/sites/forge-sites/m2e/0.10.0/S/20100209-0800/

再安装就没有问题了。

3.设置maven

Window->preferences，搜索maven，User Settings中选择本地maven配置文件，Update Settings->Apply->OK

三、问题

重启MyEclipse后，跳出异常

1 Eclipse is running in a JRE, but a JDK is required
2 Some Maven plugins may not work when importing projects or updating source folders.

具体的解决方案见这个链接http://www.blogjava.net/itvincent/archive/2010/07/25/327101.html

初一七月 2013-11-05 16:19 发表评论

Linux下安装maven

初一七月 — Sat, 02 Apr 2011 10:34:00 GMT

1.首先到Maven官网下载安装文件，目前最新版本为3.0.3，下载文件为apache-maven-3.0.3-bin.tar.gz，下载可以使用wget命令；

2.进入下载文件夹，找到下载的文件，运行如下命令解压

tar -xvf apache-maven-2.2.1-bin.tar.gz

解压后的文件夹名为apache-maven-3.0.3

3.使用mv命令将apache-maven-3.0.3文件夹拷贝到自己指定的文件夹，比如/usr/local/下

mv -rf apache-maven-3.0.3 /usr/local/

4.配置环境变量，编辑/etc/profile文件，添加如下代码

MAVEN_HOME=/usr/local/apache-maven-3.0.3
export MAVEN_HOME
export PATH=${PATH}:${MAVEN_HOME}/bin

5.保存文件，并运行如下命令使环境变量生效

source /etc/profile

6.在控制台输入如下命令，如果能看到Maven相关版本信息，则说明Maven已经安装成功

mvn -v

初一七月 2011-04-02 18:34 发表评论

Maven创建一个web应用

初一七月 — Thu, 27 Jan 2011 12:29:00 GMT

使用Maven创建一个简单的web应用，使用如下命令

mvn archetype:create -DgroupId=com.mycompany.app -DartifactId=my-webapp -DarchetypeArtifactId=maven-archetype-webapp

切换到my-webapp目录下，可以找到项目对象模型pom.xml

其中packaging标签的值为war，这种打包类型配置让Maven以war文件的形式生成一个web应用。一个打包类型为war的项目，将会在target/目录创建一个war文件，这个文件的默认名称是content-zh-webapp-0.6-SNAPSHOT.war。对于这个项目，默认的war文件是target/simple-webapp-1.0-SNAPSHOT.war。在这个项目中，我们已经通过在项目的构建配置中加入fileName元素来定义生成的war文件的名称，根据这个设置，package阶段生成的war文件为target/my-webapp.war。除此以外，还可以看到src/main/webapp下生成了简单的一个index.jsp以及WEB-INF下的web项目配置文件web.xml。

接下来我们打包程序，运行如下命令

mvn clean package

在my-webapp/target目录下，我们看到了生成的my-webapp.war。

配置Jetty插件

在编译并打包了我们的web应用之后，我们想要将它部署到一个servlet容器中，然后测试一下由Maven Archetype插件生成的index.jsp。一般我们发布web程序都需要下载Jetty或Tomcat等web容器，解压分发包，然后将我们打好的war包拷贝到webapps目录下，然后启动服务器。利用Maven的Jetty插件可以省去这些步骤，在Maven中运行我们的web应用。为此，我们需要在项目的pom.xml文件中配置Jetty插件，配置后的pom.xml如下

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0modelVersion>
  <groupId>com.mycompany.appgroupId>
  <artifactId>my-webappartifactId>
  <packaging>warpackaging>
  <version>1.0-SNAPSHOTversion>
  <name>my-webapp Maven Webappname>
  <url>http://maven.apache.orgurl>
  <dependencies>
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>3.8.1version>
      <scope>testscope>
    dependency>
  dependencies>
  <build>
    <finalName>my-webappfinalName>
    <plugins>
      <plugin>
        <groupId>org.mortbay.jettygroupId>
        <artifactId>maven-jetty-pluginartifactId>
      plugin>
      <plugin>
        <artifactId>maven-compiler-pluginartifactId>
        <configuration>
          <source>1.6source>
          <target>1.6target>
        configuration>
      plugin>
    plugins>
  build>
project>

上面的文件除了jetty外，还配置了maven-compiler-plugin编译插件，此插件可以用来指定编译器版本，以及其他一些编译细节。

修改完成后，运行如下命令，就可以启动jetty发布我们的web应用了。

mvn jetty:run

控制台打印显示服务已经启动

[INFO] Configuring Jetty for project: my-webapp Maven Webapp
[INFO] Webapp source directory = C:\Documents and Settings\caojh\my-webapp\src\main\webapp
[INFO] Reload Mechanic: automatic
[INFO] Classes = C:\Documents and Settings\caojh\my-webapp\target\classes
2011-01-27 19:46:21.028:INFO::Logging to STDERR via org.mortbay.log.StdErrLog
[INFO] Context path = /my-webapp
[INFO] Tmp directory = determined at runtime
[INFO] Web defaults = org/mortbay/jetty/webapp/webdefault.xml
[INFO] Web overrides = none
[INFO] web.xml file = C:\Documents and Settings\caojh\my-webapp\src\main\webapp\WEB-INF\web.xml
[INFO] Webapp directory = C:\Documents and Settings\caojh\my-webapp\src\main\webapp
[INFO] Starting jetty 6.1.26
2011-01-27 19:46:21.200:INFO::jetty-6.1.26
2011-01-27 19:46:21.450:INFO::No Transaction manager found - if your webapp requires one, please configure one.
2011-01-27 19:46:21.731:INFO::Started SelectChannelConnector@0.0.0.0:8080
[INFO] Started Jetty Server

在浏览器中输入http://localhost:8080/my-webapp/，就可以看到index.jsp页面的内容了。

启动与关闭Jetty

委托Jetty插件无限期运行的目标包括run、run-war和run-exploded。你可以在视窗控制终端（如DOS窗口）使用关闭它，或者在另一个视窗控制终端使用stop目标关闭。如果你希望能使用mvn jetty:stop 执行关闭命令，则需要你在插件中配置一个特殊的端口和控制键。下面是一个例子配置

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0modelVersion>
  <groupId>com.mycompany.appgroupId>
  <artifactId>my-webappartifactId>
  <packaging>warpackaging>
  <version>1.0-SNAPSHOTversion>
  <name>my-webapp Maven Webappname>
  <url>http://maven.apache.orgurl>
  <dependencies>
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>3.8.1version>
      <scope>testscope>
    dependency>
  dependencies>
  <build>
    <finalName>my-webappfinalName>
    <plugins>
      <plugin>
        <groupId>org.mortbay.jettygroupId>
        <artifactId>maven-jetty-pluginartifactId>
        <configuration>
          <stopPort>9966stopPort>
          <stopKey>foostopKey>
        configuration>
      plugin>
      <plugin>
        <artifactId>maven-compiler-pluginartifactId>
        <configuration>
          <source>1.6source>
          <target>1.6target>
        configuration>
      plugin>
    plugins>
  build>
project>

启动

mvn jetty:start

停止

mvn jetty:stop

至此一个简单的web应用就完成了，你可以像其他web应用一样对它进行添加修改了，而工程的调试运行还可以试用上面的jetty，还是很方便的。

更详细的配置
http://docs.codehaus.org/display/JETTY/Maven+Jetty+Plugin

初一七月 2011-01-27 20:29 发表评论

Maven安装及测试

初一七月 — Thu, 13 Jan 2011 09:55:00 GMT

首先从http://maven.apache.org/download.html下载二进制安装包，最新的版本是3.0.2。

windows下安装：
1.将二进制包apache-maven-3.0.2-bin.zip解压至任意目录，比如C:\apache-maven-3.0.2
2.设置环境变量，M2_HOME=C:\apache-maven-3.0.2，并且在PATH变量里添加%M2_HOME%\bin
3.测试配置是否生效，控制台里输入mvn -v或mvn -version，显示如下信息，表示安装已经成功。

Apache Maven 3.0.2 (r1056850; 2011-01-09 08:58:10+0800)
Java version: 1.6.0_10-rc2, vendor: Sun Microsystems Inc.
Java home: C:\Java\jdk1.6.0_10\jre
Default locale: zh_CN, platform encoding: GBK
OS name: "windows xp", version: "5.1", arch: "x86", family: "windows"

Maven的插件是在第一次加载时从仓库下载的，然后在本地保存一个副本，也就是说第一次需要联网到仓库去下载，新安装的Maven只包含内核，还不包含其他插件，我们可以使用describe目标去试着获取help插件的信息

mvn help:describe -Dplugin=help

因为是第一次加载，所以会看到很多下载信息，在插件下载完成之后，最后才打印出help插件的具体信息

[INFO] Scanning for projects
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom
Downloaded: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom (5 KB at 2.3 KB/sec)
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-plugins/18/maven-plugins-18.pom
Downloaded: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-plugins/18/maven-plugins-18.pom (13 KB at 18.5 KB/sec)
Downloading: http://repo1.maven.org/maven2/org/apache/maven/maven-parent/16/maven-parent-16.pom
Downloaded: http://repo1.maven.org/maven2/org/apache/maven/maven-parent/16/maven-parent-16.pom (23 KB at 33.0 KB/sec)
Downloading: http://repo1.maven.org/maven2/org/apache/apache/7/apache-7.pom
Downloaded: http://repo1.maven.org/maven2/org/apache/apache/7/apache-7.pom (15 KB at 20.5 KB/sec)

[INFO] org.apache.maven.plugins:maven-help-plugin:2.1.1

Name: Maven Help Plugin
Description: The Maven Help plugin provides goals aimed at helping to make
  sense out of the build environment. It includes the ability to view the
  effective POM and settings files, after inheritance and active profiles have
  been applied, as well as a describe a particular plugin goal to give usage
  information.
Group Id: org.apache.maven.plugins
Artifact Id: maven-help-plugin
Version: 2.1.1
Goal Prefix: help

This plugin has 9 goals:

help:active-profiles
  Description: Displays a list of the profiles which are currently active for
    this build.

help:all-profiles
  Description: Displays a list of available profiles under the current
    project.
    Note: it will list all profiles for a project. If a profile comes up with a
    status inactive then there might be a need to set profile activation
    switches/property.

help:describe
  Description: Displays a list of the attributes for a Maven Plugin and/or
    goals (aka Mojo - Maven plain Old Java Object).

help:effective-pom
  Description: Displays the effective POM as an XML for this build, with the
    active profiles factored in.

help:effective-settings
  Description: Displays the calculated settings as XML for this project,
    given any profile enhancement and the inheritance of the global settings
    into the user-level settings.

help:evaluate
  Description: Evaluates Maven expressions given by the user in an
    interactive mode.

help:expressions
  Description: Displays the supported Plugin expressions used by Maven.

help:help
  Description: Display help information on maven-help-plugin.
    Call
      mvn help:help -Ddetail=true -Dgoal=<goal-name>
    to display parameter details.

help:system
  Description: Displays a list of the platform details like system properties
    and environment variables.

For more information, run 'mvn help:describe [] -Ddetail'

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2:29.749s
[INFO] Finished at: Thu Jan 13 17:01:15 CST 2011
[INFO] Final Memory: 3M/7M
[INFO] ------------------------------------------------------------------------

上面的输出为help插件的Maven坐标，我们也可以看到新版本的Maven的9个目标，每个目标都做了说明，同时还包括了该插件的一个简要介绍、前缀等，如果你想要 Help 插件输出完整的带有参数的目标列表，只要运行带有参数full的help:describe目标就可以了

mvn help:describe -Dplugin=help -Dfull

此时会输出非常详细的插件信息

[INFO] Scanning for projects
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-help-plugin:2.1.1:describe (default-cli) @ standalone-pom ---
[INFO] org.apache.maven.plugins:maven-help-plugin:2.1.1

Name: Maven Help Plugin
Description: The Maven Help plugin provides goals aimed at helping to make
  sense out of the build environment. It includes the ability to view the
  effective POM and settings files, after inheritance and active profiles have
  been applied, as well as a describe a particular plugin goal to give usage
  information.
Group Id: org.apache.maven.plugins
Artifact Id: maven-help-plugin
Version: 2.1.1
Goal Prefix: help

This plugin has 9 goals:

help:active-profiles
  Description: Displays a list of the profiles which are currently active for
    this build.
  Implementation: org.apache.maven.plugins.help.ActiveProfilesMojo
  Language: java

  Available parameters:

    output
      Expression: ${output}
      Optional parameter to write the output of this help in a given file,
      instead of writing to the console.
      Note: Could be a relative path.

help:all-profiles
  Description: Displays a list of available profiles under the current
    project.
    Note: it will list all profiles for a project. If a profile comes up with a
    status inactive then there might be a need to set profile activation
    switches/property.
  Implementation: org.apache.maven.plugins.help.AllProfilesMojo
  Language: java

  Available parameters:

    output
      Expression: ${output}
      Optional parameter to write the output of this help in a given file,
      instead of writing to the console.
      Note: Could be a relative path.

help:describe
  Description: Displays a list of the attributes for a Maven Plugin and/or
    goals (aka Mojo - Maven plain Old Java Object).
  Implementation: org.apache.maven.plugins.help.DescribeMojo
  Language: java

  Available parameters:

    artifactId
      Expression: ${artifactId}
      The Maven Plugin artifactId to describe.
      Note: Should be used with groupId parameter.

    cmd
      Expression: ${cmd}
      A Maven command like a single goal or a single phase following the Maven
      command line:
      mvn [options] [<goal(s)>] [<phase(s)>]

    detail (Default: false)
      Expression: ${detail}
      This flag specifies that a detailed (verbose) list of goal (Mojo)
      information should be given.

    goal
      Expression: ${goal}
      The goal name of a Mojo to describe within the specified Maven Plugin. If
      this parameter is specified, only the corresponding goal (Mojo) will be
      described, rather than the whole Plugin.

    groupId
      Expression: ${groupId}
      The Maven Plugin groupId to describe.
      Note: Should be used with artifactId parameter.

    medium (Default: true)
      Expression: ${medium}
      This flag specifies that a medium list of goal (Mojo) information should
      be given.

    minimal (Default: false)
      Expression: ${minimal}
      This flag specifies that a minimal list of goal (Mojo) information should
      be given.

    output
      Expression: ${output}
      Optional parameter to write the output of this help in a given file,
      instead of writing to the console.
      Note: Could be a relative path.

    plugin
      Expression: ${plugin}
      The Maven Plugin to describe. This must be specified in one of three
      ways:

      1.  plugin-prefix, i.e. 'help'
      2.  groupId:artifactId, i.e. 'org.apache.maven.plugins:maven-help-plugin'
      3.  groupId:artifactId:version, i.e.
        'org.apache.maven.plugins:maven-help-plugin:2.0'

    version
      Expression: ${version}
      The Maven Plugin version to describe.
      Note: Should be used with groupId/artifactId parameters.

help:effective-pom
  Description: Displays the effective POM as an XML for this build, with the
    active profiles factored in.
  Implementation: org.apache.maven.plugins.help.EffectivePomMojo
  Language: java

  Available parameters:

    output
      Expression: ${output}
      Optional parameter to write the output of this help in a given file,
      instead of writing to the console.
      Note: Could be a relative path.

help:effective-settings
  Description: Displays the calculated settings as XML for this project,
    given any profile enhancement and the inheritance of the global settings
    into the user-level settings.
  Implementation: org.apache.maven.plugins.help.EffectiveSettingsMojo
  Language: java

  Available parameters:

    output
      Expression: ${output}
      Optional parameter to write the output of this help in a given file,
      instead of writing to the console.
      Note: Could be a relative path.

    showPasswords (Default: false)
      Expression: ${showPasswords}
      For security reasons, all passwords are hidden by default. Set this to
      true to show all passwords.

help:evaluate
  Description: Evaluates Maven expressions given by the user in an
    interactive mode.
  Implementation: org.apache.maven.plugins.help.EvaluateMojo
  Language: java

  Available parameters:

    artifact
      Expression: ${artifact}
      An artifact for evaluating Maven expressions.
      Note: Should respect the Maven format, i.e.
      groupId:artifactId[:version][:classifier].

    expression
      Expression: ${expression}
      An expression to evaluate instead of prompting. Note that this must not
      include the surrounding ${}.

help:expressions
  Description: Displays the supported Plugin expressions used by Maven.
  Implementation: org.apache.maven.plugins.help.ExpressionsMojo
  Language: java

  Available parameters:

    output
      Expression: ${output}
      Optional parameter to write the output of this help in a given file,
      instead of writing to the console.
      Note: Could be a relative path.

help:help
  Description: Display help information on maven-help-plugin.
    Call
      mvn help:help -Ddetail=true -Dgoal=<goal-name>
    to display parameter details.
  Implementation: org.apache.maven.plugins.help.HelpMojo
  Language: java

  Available parameters:

    detail (Default: false)
      Expression: ${detail}
      If true, display all settable properties for each goal.

    goal
      Expression: ${goal}
      The name of the goal for which to show help. If unspecified, all goals
      will be displayed.

    indentSize (Default: 2)
      Expression: ${indentSize}
      The number of spaces per indentation level, should be positive.

    lineLength (Default: 80)
      Expression: ${lineLength}
      The maximum length of a display line, should be positive.

help:system
  Description: Displays a list of the platform details like system properties
    and environment variables.
  Implementation: org.apache.maven.plugins.help.SystemMojo
  Language: java

  Available parameters:

    output
      Expression: ${output}
      Optional parameter to write the output of this help in a given file,
      instead of writing to the console.
      Note: Could be a relative path.

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.313s
[INFO] Finished at: Thu Jan 13 17:38:55 CST 2011
[INFO] Final Memory: 3M/7M
[INFO] ------------------------------------------------------------------------

该选项能让你查看插件所有的目标及相关参数。但是有时候这些信息显得太多了。这时候你可以获取单个目标的信息，设置mojo参数和plugin参数。下面的命令列出了Compiler插件的compile目标的所有信息

mvn help:describe -Dplugin=compiler -Dmojo=compile -Dfull

在Maven里面，一个插件目标也被认为是一个Mojo。比如上面我们看到help插件有system目标，所以我们可以这样来查看help:system下的output信息

mvn help:system -Dplugin=help -Dmojo=output -Dfull

初一七月 2011-01-13 17:55 发表评论