这些天我花了一些时间在 JAXB 上将 XSD 转换为 Java 类,反之亦然。这是一个非常适合初学者的教程,http://www.journaldev.com/1312/how-to-generate-java-classes-from-xsd-using-xjc-maven-plugin。我严格按照步骤操作,但总是出错mvn clean install
这是我的pom.xml
文件。
<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>jd</groupId>
<artifactId>jd</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<!-- Plugin required to build java classes from XSD using XJC -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>1.5</version>
<executions>
<execution>
<id>xjc</id>
<goals>
<goal>xjc</goal>
</goals>
</execution>
</executions>
<configuration>
<!-- The name of your generated source package -->
<arguments>-extension -npa -b ${project.basedir}/src/main/java/com/moodys/jaxb/global.xjb</arguments>
</configuration>
</plugin>
</plugins>
</build>
</project>
但是当我输入时mvn clean install
,它总是给我如下错误:
C:\Users\congy\Desktop\Work\workspace\JaxbFromClass>mvn clean jaxb2:xjc
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building jd 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ jd ---
[INFO] Deleting C:\Users\congy\Desktop\Work\workspace\JaxbFromClass\target
[INFO]
[INFO] --- jaxb2-maven-plugin:1.5:xjc (default-cli) @ jd ---
[INFO] Generating source...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.487s
[INFO] Finished at: Thu Jul 04 19:09:37 CST 2013
[INFO] Final Memory: 4M/122M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:jaxb2-maven-plugin:1.5:xjc (default-cli) on project jd: No schemas have been found -> [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
谁能告诉我原因或简单地告诉我应该参考什么以获得更多信息?
另一个问题是:根据这个问题Difference of Maven JAXB plugins,至少有三个 jaxb 插件。那么所有这些插件都是为了相同的目的而生成的吗?如果是这样,为什么?
提前致谢!