Question

我正在使用maven-processor-plugin来生成我的元模型类，现在我想将生成的foldet广告到我的构建路径，以使用我的代码中生成的类。但是，当我运行mvn install时，我的元模型生成正确，但该文件夹未添加为源文件夹。这是我的pom.xml：

<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>intl</groupId>
    <artifactId>intl</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <dependencies>
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>4.3.4.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-jpamodelgen</artifactId>
            <version>4.3.4.Final</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.28</version>
        </dependency>
        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.3</version>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>16.0.1</version>
        </dependency>
    </dependencies>
    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.bsc.maven</groupId>
                <artifactId>maven-processor-plugin</artifactId>
                <version>2.2.4</version>
                <executions>
                    <execution>
                        <id>process</id>
                        <goals>
                            <goal>process</goal>
                        </goals>
                        <phase>generate-source</phase>
                        <configuration>
                            <processors>
                                <processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
                            </processors>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <version>1.8</version>
                <executions>
                    <execution>
                        <id>add-source</id>
                        <phase>generate-source</phase>
                        <goals>
                            <goal>add-source</goal>
                        </goals>
                        <configuration>
                            <sources>
                                <source>${project.build.directory}/generated-sources/annotations</source>
                            </sources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <warSourceDirectory>WebContent</warSourceDirectory>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>
    </build> </project>

我没有错误，maven说BUILD SUCCESS但没有添加源文件夹。谁能看到我做错了什么？对不起，如果很明显我是所有与maven相关的新手。

这是运行mvn install时得到的输出：

[INFO] Scanning for projects...
[INFO]
[INFO] Using the builder org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder with a thread count of 1
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building intl 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ intl ---
[INFO] Deleting C:\Users\myuser\Workspace\intl\intl\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ intl ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\myuser\Workspace\intl\intl\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ intl ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 9 source files to C:\Users\myuser\Workspace\intl\intl\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ intl ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\myuser\Workspace\intl\intl\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ intl ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ intl ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-war-plugin:2.3:war (default-war) @ intl ---
[INFO] Packaging webapp
[INFO] Assembling webapp [intl] in [C:\Users\myuser\Workspace\intl\intl\target\intl-0.0.1-SNAPSHOT]
[INFO] Processing war project
[INFO] Webapp assembled in [52 msecs]
[INFO] Building war: C:\Users\myuser\Workspace\intl\intl\target\intl-0.0.1-SNAPSHOT.war
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) @ intl ---
[INFO] Installing C:\Users\myuser\Workspace\intl\intl\target\intl-0.0.1-SNAPSHOT.war to C:\Users\myuser\.m2\repository\intl\intl\0.0.1-SNAPSHOT\intl-0.0.1-SNAPSHOT.war
[INFO] Installing C:\Users\myuser\Workspace\intl\intl\pom.xml to C:\Users\myuser\.m2\repository\intl\intl\0.0.1-SNAPSHOT\intl-0.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.771 s
[INFO] Finished at: 2014-03-30T13:39:30+01:00
[INFO] Final Memory: 16M/244M
[INFO] ------------------------------------------------------------------------

Answer 1

您使用src作为生成源的路径，但添加${project.build.directory}/generated-sources/annotations作为源文件夹。

将outputDirectory的{{1}}属性更改为maven-processor-plugin，并且每个属性都应按预期工作。

<强>更新

在当前的日志文件中，既不执行进程也不执行build-helper插件。这是由于您的阶段中的类型。该阶段名为${project.build.directory}/generated-sources/annotations，但您编写了generate-sources。

如果你的日食已经足够了，它应该开箱即用，或者项目应该展示一个未知的生命周期......＆＃34;错误，其第一个快速修复（发现...）将下载m2e-buildhelper插件，该插件将在您的日食中显示生成的源。

Answer 2

@DeleteMePlease：maven-processor-plugin和build-helper-maven-plugin都不会显示在日志中。即它们都没有被执行。正如@blackbuild所说，这是由于拼写错误造成的。当一个阶段未知时，Maven会在构建期间忽略相关的目标。

但可能还有另一个问题：在pom中，首先maven-processor-plugin然后build-helper-maven-plugin在build/plugins部分中宣布具有相同的阶段，即：generate-sources 。在这种情况下，声明顺序是运行时顺序：maven-processor-plugin将在build-helper-maven-plugin之前运行，即在此最后一个插件指定任何文件夹作为源文件夹之前。由于maven-compiler-plugin将在稍后运行，因此不应该成为问题。如果是，则有两个选项：

将两个插件保持在同一部分但交换其顺序;
在早期阶段移动build-helper-maven-plugin，例如initialize。

build-helper-maven-plugin add-source不起作用

2 个答案: