mvn hibernate3:hbm2ddl在教程中失败

Question

我正在尝试遵循这本在线书籍的第7章中的教程：http://books.sonatype.com/mvnex-book/reference/index.html

本教程旨在演示一个带有Spring Framework和hibernate的web应用程序，我被困在这里了：

mvn休眠3:hbm2ddl

...
<build>
    <finalName>simple-webapp</finalName>
    <plugins>
        <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
                <dependencies>
                        <dependency>
                            <groupId>hsqldb</groupId>
                            <artifactId>hsqldb</artifactId>
                            <version>1.8.0.7</version>
                        </dependency>
                </dependencies>
        </plugin>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
                <artifactId>hibernate3-maven-plugin</artifactId>
                <version>2.0</version>
                <configuration>
                    <components>
                        <component>
                            <name>hbm2ddl</name>
                            <implementation>annotationconfiguration</implementation>
                        </component>
                    </components>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>hsqldb</groupId>
                        <artifactId>hsqldb</artifactId>
                        <version>1.8.0.7</version>
                    </dependency>
                    <dependency>
                <groupId>org.hibernate.javax.persistence</groupId>
                <artifactId>hibernate-jpa-2.0-api</artifactId>
                <version>1.0.0.Final</version>
            </dependency>
            <dependency>
                <groupId>org.hibernate</groupId>
                <artifactId>hibernate-entitymanager</artifactId>
                <version>3.6.7.Final</version>
            </dependency>
                </dependencies>
        </plugin>
    </plugins>
</build>

错误消息如下。任何洞察力或指针都将受到赞赏。谢谢。

@localhost simple-webapp]$ mvn hibernate3:hbm2ddl
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for     org.sonatype.mavenbook.multispring:simple-webapp:war:1.0
[WARNING] 'build.plugins.plugin.version' for org.mortbay.jetty:maven-jetty-plugin is     missing. @ org.sonatype.mavenbook.multispring:simple-webapp:[unknown-version],     /home/abigail/workspace/simple-parent/simple-webapp/pom.xml, line 46, column 21
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-    plugin is missing. @ org.sonatype.mavenbook.multispring:simple-parent:1.0,     /home/abigail/workspace/simple-parent/pom.xml, line 29, column 12
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the     stability of your build. 
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such     malformed projects.
[WARNING] 
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Simple Web Application 1.0
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] >>> hibernate3-maven-plugin:3.0:hbm2ddl (default-cli) > compile @ simple-webapp     >>>
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ simple-webapp ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e.     build is platform dependent!
[INFO] skip non existing resourceDirectory /home/abigail/workspace/simple-parent/simple-    webapp/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ simple-webapp ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] <<< hibernate3-maven-plugin:3.0:hbm2ddl (default-cli) < compile @ simple-webapp     <<<
[INFO] 
[INFO] --- hibernate3-maven-plugin:3.0:hbm2ddl (default-cli) @ simple-webapp ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.959 s
[INFO] Finished at: 2014-09-03T02:35:24-04:00
[INFO] Final Memory: 12M/208M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:hibernate3-maven-plugin:3.0:hbm2ddl     (default-cli) on project simple-webapp: There was an error creating the AntRun task.     NullPointerException -> [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 articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Answer 1

试着为你的maven-jetty-plugin插件添加版本，看看是否能解决这个问题，因为有一个警告说：

[WARNING] 'build.plugins.plugin.version' for org.mortbay.jetty:maven-jetty-plugin is     missing. @ org.sonatype.mavenbook.multispring:simple-webapp:[unknown-version],     /home/abigail/workspace/simple-parent/simple-webapp/pom.xml, line 46, column 21
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-    plugin is missing. @ org.sonatype.mavenbook.multispring:simple-parent:1.0,     /home/abigail/workspace/simple-parent/pom.xml, line 29, column 12

例如：

<version>4.2.14</version>

Answer 2

你能试试下面的插件吗？

<plugin>
    <!-- Run "mvn hibernate3:hbm2ddl" to generate schema -->
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>hibernate3-maven-plugin</artifactId>
    <version>${hibernate3.maven.plugin.version}</version>

    <configuration>
        <hibernatetool>
            <annotationconfiguration propertyfile="src/main/resources/${hibernate.properties}" />
            <hbm2ddl update="true" create="true" export="false"
                     outputfilename="${hibernate.hbm2ddl.sqlfile}" format="true"
                     console="true" />
        </hibernatetool>
    </configuration>
</plugin>

而不是

<groupId>org.codehaus.mojo</groupId>
                <artifactId>hibernate3-maven-plugin</artifactId>
                <version>2.0</version>
                <configuration>
                    <components>
                        <component>
                            <name>hbm2ddl</name>
                            <implementation>annotationconfiguration</implementation>
                        </component>
                    </components>
                </configuration>

Answer 3

我遇到了与您相同的问题(使用Java8)，并通过将插件版本从2.0切换到2.2解决了这个问题。如果您尝试较新的版本，它似乎再次崩溃。

想知道是否有更好的方法来解决这样的版本问题，而不是试错结合广泛的搜索引擎使用。

<plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>hibernate3-maven-plugin</artifactId>
  <version>2.2</version>
  <configuration>
    <components>
      <component>
        <name>hbm2ddl</name>
        <implementation>annotationconfiguration</implementation>
      </component>
    </components>
  </configuration>
  <dependencies>
    <dependency>
      <groupId>hsqldb</groupId>
      <artifactId>hsqldb</artifactId>
      <version>1.8.0.7</version>
    </dependency>
  </dependencies>
</plugin>