java 通过 maven-antrun-plugin 使用 antcontrib <if> 任务
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Using antcontrib <if> task via maven-antrun-plugin
提问by Qwerky
My maven java project uses the maven-antrun-plugin to execute a deploy.xml ant script that deploys my app. The deploy.xml uses the <if>task and this seems to be causing the problem;
我的 maven java 项目使用 maven-antrun-plugin 来执行部署我的应用程序的 deploy.xml ant 脚本。deploy.xml 使用该<if>任务，这似乎是导致问题的原因；
[INFO] Executing tasks
[taskdef] Could not load definitions from resource net/sf/antcontrib/antlib.xml. It could not be found.deploy:
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] An Ant BuildException has occured: The following error occurred while executing this line:
E:\My_Workspace\xxxxxx\xxxxxx\xxxxxxx\deploy.xml:24: Problem: failed to create task or type if
Cause: The name is undefined.
Action: Check the spelling.
Action: Check that any custom tasks/types have been declared.
Action: Check that any <presetdef>/<macrodef> declarations have taken place.
[信息] 正在执行任务
[taskdef] 无法从资源 net/sf/antcontrib/antlib.xml 加载定义。无法找到。部署：
[信息] --------------------------------------------- ---------------------------
[错误] 构建错误
[信息] --------------- -------------------------------------------------- -------
[INFO] An Ant BuildException has occurred: The following error occurred while
execution this line: E:\My_Workspace\xxxxxx\xxxxxx\xxxxxxx\deploy.xml:24: Problem: failed to create task or type如果
原因：名称未定义。
行动：检查拼写。
行动：检查是否已声明任何自定义任务/类型。
行动：检查任何<presetdef>/<macrodef>声明已经发生。
Here is the antrun plugin config from my pom;
这是我的 pom 中的 antrun 插件配置；
<plugin>
<inherited>false</inherited>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<id>remote-deploy</id>
<phase>install</phase>
<configuration>
<tasks>
<taskdef resource="net/sf/antcontrib/antcontrib.properties" classpathref="maven.plugin.classpath"/>
<property name="compile_classpath" refid="maven.compile.classpath" />
<property name="runtime_classpath" refid="maven.runtime.classpath" />
<property name="plugin_classpath" refid="maven.plugin.classpath" />
<echo message="compile classpath: ${compile_classpath}"/>
<echo message="runtime classpath: ${runtime_classpath}"/>
<echo message="plugin classpath: ${plugin_classpath}"/>
<ant antfile="${basedir}/deploy.xml">
<target name="deploy" />
</ant>
</tasks>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>ant-contrib</groupId>
<artifactId>ant-contrib</artifactId>
<version>1.0b3</version>
</dependency>
<dependency>
<groupId>org.apache.ant</groupId>
<artifactId>ant</artifactId>
<version>1.7.1</version>
</dependency>
<dependency>
<groupId>org.apache.ant</groupId>
<artifactId>ant-jsch</artifactId>
<version>1.7.1</version>
</dependency>
</dependencies>
</plugin>
.. and here is the relevant section from my deploy.xml;
.. 这是我的 deploy.xml 中的相关部分；
<target name="deploy" if="deploy">
<if> <!-- line 24 -->
<and>
Why I look in my maven repo I can see ant-contrib/ant-contrib/1.0b3/ant-contrib-1.0b3.jarand when I look inside the jar I can see net/sf/antcontrib/antcontrib.propertiesso no problem there.
为什么我查看我的 Maven 仓库我可以看到ant-contrib/ant-contrib/1.0b3/ant-contrib-1.0b3.jar，当我查看罐子里面时，我可以看到net/sf/antcontrib/antcontrib.properties所以没有问题。
When I check the values of maven.compile.classpath, maven.compile.classpathand maven.compile.classpathI can't see any reference to antcontrib, could this be the problem? Why don't they appear when antcontribis defined as a dependancy?
当我检查的数值maven.compile.classpath，maven.compile.classpath而maven.compile.classpath我看不到任何引用antcontrib，这会是什么问题？为什么它们在antcontrib被定义为依赖时不出现？
采纳答案by Qwerky
OK, I've solved it.
好的，我已经解决了。
Moving the dependencies out of the <build><plugin>tag and putting them in with the other project dependencies seems to have done the trick.
将依赖项从<build><plugin>标记中移出并将它们与其他项目依赖项一起放入似乎已经成功。
回答by Vasyl Shchukin
I think it is not a very good idea to add ant to compile classpath in order to run maven plugin.
我认为将 ant 添加到编译类路径以运行 maven 插件不是一个好主意。
I use Maven 3.0.4 and it worked by specifying namespace for ant-contrib tags, for example:
我使用 Maven 3.0.4，它通过为 ant-contrib 标签指定命名空间来工作，例如：
<configuration>
<target>
<echo message="The first five letters of the alphabet are:"/>
<ac:for list="a,b,c,d,e" param="letter" xmlns:ac="antlib:net.sf.antcontrib">
<sequential>
<echo>Letter @{letter}</echo>
</sequential>
</ac:for>
</target>
</configuration>
My maven-antrun-plugindependencies:
我的maven-antrun-plugin依赖：
<dependencies>
<dependency>
<groupId>ant-contrib</groupId>
<artifactId>ant-contrib</artifactId>
<version>1.0b3</version>
<exclusions>
<exclusion>
<groupId>ant</groupId>
<artifactId>ant</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.ant</groupId>
<artifactId>ant-nodeps</artifactId>
<version>1.8.1</version>
</dependency>
</dependencies>
回答by Gapmeister66
I found that you need to include the ant-contrib dependency inside the plugin which will enable the taskdef tag to find antcontrib.properties
我发现您需要在插件中包含 ant-contrib 依赖项，这将使 taskdef 标签能够找到 antcontrib.properties
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<dependencies>
<dependency>
<groupId>ant-contrib</groupId>
<artifactId>ant-contrib</artifactId>
<version>20020829</version>
</dependency>
</dependencies>
<executions>
<execution>
<id>copy-and-rename-template-files</id>
<phase>prepare-package</phase>
<goals>
<goal>run</goal>
</goals>
<configuration>
<target name = "copy-and-rename-template-files">
<taskdef resource="net/sf/antcontrib/antcontrib.properties"/>
<if>
<available file="src/main/resources/docker/templates" type="dir"/>
<then>
<copy todir="${project.build.directory}/docker">
<fileset dir="src/main/resources/docker/templates">
<include name="**/*"/>
</fileset>
</copy>
<move todir="${project.build.directory}/docker">
<fileset dir="${project.build.directory}/docker">
<include name="*"/>
</fileset>
<mapper>
<regexpmapper from="(.*)project(.*)" to="${project.artifactId}"/>
</mapper>
</move>
</then>
<else>
<echo>src/main/resources/docker/templates does not exist, skipping processing docker templates</echo>
</else>
</if>
</target>
</configuration>
</execution>
</executions>
</plugin>
回答by Surasin Tancharoen
another solution would be: keep the ant-contrib-1.0b3.jar to a path and then define it like this
另一种解决方案是：将 ant-contrib-1.0b3.jar 保留到一个路径，然后像这样定义它
<property name="runningLocation" location="" />
<taskdef resource="net/sf/antcontrib/antcontrib.properties">
<classpath>
<pathelement location="${runningLocation}/ant-contrib-1.0b3.jar" />
</classpath>
</taskdef>
then
然后
<target name="doSomething">
<if>
<equals arg1="${someProp}" arg2="YES" />
<then>
<echo message="It is YES" />
</then>
<else>
<echo message="It is not YES" />
</else>
</if>
</target>
I put full code example here which you can download https://www.surasint.com/run-ant-with-if-from-maven/
我在这里放了完整的代码示例，您可以下载https://www.surasint.com/run-ant-with-if-from-maven/
