java Maven JAXB 插件只执行一次执行

Maven JAXB plugin executing only one excecution

提问by Paulius Matulionis

I am trying to generated sources from two XSDschemas. My JAXBmaven plugin looks like this:

我正在尝试从两个XSD模式生成源。我的JAXBMaven 插件如下所示：

<plugin>
    <groupId>com.sun.tools.xjc.maven2</groupId>
    <artifactId>maven-jaxb-plugin</artifactId>
    <version>1.1.1</version>
    <executions>
        <execution>
            <id>GenerateKenexa</id>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <includeBindings>
                    <includeBinding>**/jaxb-bindings-kenexa.xml</includeBinding>
                </includeBindings>
                <includeSchemas>
                    <includeSchema>**/KenexaXMLConfiguration.xsd</includeSchema>
                </includeSchemas>
            </configuration>
        </execution>
        <execution>
            <id>GenerateTalentQ</id>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <includeBindings>
                    <includeBinding>**/jaxb-bindings-talentq.xml</includeBinding>
                </includeBindings>
                <includeSchemas>
                    <includeSchema>**/TalentQXMLConfiguration.xsd</includeSchema>
                </includeSchemas>
            </configuration>
        </execution>
    </executions>
</plugin>

The first one gets generated fine. But the second one does not. I see in the maven output:

第一个生成得很好。但第二个没有。我在 Maven 输出中看到：

[INFO] --- maven-jaxb-plugin:1.1.1:generate (GenerateKenexa) @ online.tests.management ---
[INFO] Compiling file:/D:/Projects/GTIWebApplications/gti_online_tests_management/src/main/resources/xsd/KenexaXMLConfiguration.xsd
[INFO] Writing output to D:\Projects\GTIWebApplications\gti_online_tests_management\target\generated-sources\xjc
[INFO] 
[INFO] --- maven-jaxb-plugin:1.1.1:generate (GenerateTalentQ) @ online.tests.management ---
[INFO] files are up to date

It says that files are up to date, but they aren't even generated. What might be wrong?

它说文件是最新的，但它们甚至没有生成。可能有什么问题？

采纳答案by Paulius Matulionis

I solved the problem. I have changed the maven jaxbplugin into maven jaxb2plugin and now everything works. Now my maven configuration looks like this:

我解决了这个问题。我已将 mavenjaxb插件更改为 mavenjaxb2插件，现在一切正常。现在我的 Maven 配置如下所示：

<plugin>
    <groupId>org.jvnet.jaxb2.maven2</groupId>
    <artifactId>maven-jaxb2-plugin</artifactId>
    <version>0.8.2</version>
    <executions>
        <execution>
            <id>GenerateKenexa</id>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <schemaDirectory>src/main/resources/xsd</schemaDirectory>
                <schemaIncludes>
                    <include>KenexaXMLConfiguration.xsd</include>
                </schemaIncludes>
                <generatePackage>com.groupgti.onlinetest.kenexa.jaxb</generatePackage>
                <generateDirectory>${project.build.directory}/generated-sources/kenexa</generateDirectory>
            </configuration>
        </execution>
        <execution>
            <id>GenerateTalentQ</id>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <schemaDirectory>src/main/resources/xsd</schemaDirectory>
                <schemaIncludes>
                    <include>TalentQXMLConfiguration.xsd</include>
                </schemaIncludes>
                <generatePackage>com.groupgti.onlinetest.talentq.jaxb</generatePackage>
                <generateDirectory>${project.build.directory}/generated-sources/talentq</generateDirectory>
            </configuration>
        </execution>
    </executions>
</plugin>

回答by Jan Nielsen

For people coming in to this question as I did, a year later :/

对于像我一样提出这个问题的人，一年后：/

The problem persists in maven-jaxb2-plugin aswell, it's probably some sort of bug in 0.8.3. When you generate the files into the same directory, the plugin "thinks" that the files have allready been generated and skips that second execution.

问题仍然存在于 maven-jaxb2-plugin 中，它可能是 0.8.3 中的某种错误。当您将文件生成到同一目录中时，插件“认为”文件已经生成并跳过第二次执行。

I found that in order to generate the second execution you will have to set the argument

我发现为了生成第二次执行，您必须设置参数

<forceRegenerate>true</forceRegenerate>

In the configuration section.

在配置部分。

回答by Grigory Katkov

First, I would recommend to specify separate output folders for each xsd <outputdirectory>${basedir}/target/generated-sources/xjc</outputdirectory>

首先，我建议为每个 xsd 指定单独的输出文件夹 <outputdirectory>${basedir}/target/generated-sources/xjc</outputdirectory>

And second, try to set it up as separate plugin entries, no separate executions:

其次，尝试将其设置为单独的插件条目，没有单独的执行：

<plugin>
    <groupId>com.sun.tools.xjc.maven2</groupId>
...
<includeSchema>**/KenexaXMLConfiguration.xsd...
...
</plugin>
<plugin>
    <groupId>com.sun.tools.xjc.maven2</groupId>
...
<includeSchema>**/TalentQXMLConfiguration.xsd...
...
</plugin>

回答by Peng Zhang

I am using jaxb2 while still was facing the problem when I reached here. I added the below piece into config from other folks answers and it works now. For previous answers the part that did the trick should be:

我正在使用 jaxb2，但当我到达这里时仍然面临问题。我从其他人的答案中将以下部分添加到配置中，现在可以使用了。对于以前的答案，成功的部分应该是：

<generateDirectory>${project.build.directory}/generated-sources/kenexa</generateDirectory>

Also a unique execution id is needed

还需要一个唯一的执行 ID

<id>GenerateKenexa</id>

But different directories make the code lies into two top level packages, so at last I am using:

但是不同的目录使代码位于两个顶级包中，所以最后我使用了：

<forceRegenerate>true</forceRegenerate>