Question

我有一个项目，可以从xsd模式生成带有jaxb的Java类。

pom包含

        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>jaxb2-maven-plugin</artifactId>
            <version>2.2</version>
            <executions>
                <execution>
                    <id>xjc</id>
                    <goals>
                        <goal>xjc</goal>
                    </goals>
                    <phase>generate-sources</phase>
                </execution>
            </executions>
            <configuration>
                <!-- The package of your generated sources -->
                <packageName>com.melexis.mfgdil.b2mml</packageName>
                <sources>
                    <source>src/main/schema/AllSchemas.xsd</source>
                </sources>
            </configuration>
        </plugin>

当我输入mvn clean install时，java源是从将xsd文件放到 target / generated-sources / jaxb 中，然后编译并以 target / classes 结尾，太棒了！

当我敢于立即再次运行mvn install而不进行任何更改时，我会看到：

[INFO] --- jaxb2-maven-plugin:2.2:xjc (xjc) @ b2mml ---
[INFO] Ignored given or default xjbSources 
[/home/pti/Projects/b2mml/src/main/xjb], since it is not an existent file or directory.
[INFO] No changes detected in schema or binding files - skipping JAXB 
generation.  
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ b2mml ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ b2mml ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to /home/pti/Projects/b2mml/target/classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ b2mml ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/pti/Projects/b2mml/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @

b2mml- [INFO]无需编译-所有类都是最新的 [INFO]

target / classes 文件夹被擦除，并且 target / generated-sources 中的所有类都消失了，而我<留下了em> src / main / java 树。

我不明白为什么Maven会检测到更改，而得到的结果甚至更少，那就是Maven然后重新编译模块，但是忘记了生成的源代码。我忘记了什么？

运行两次mvn时，为什么生成的源类消失了？

0 个答案: