这是我的示例程序,而使用mvn编译它抛出我的编译错误,我试图添加一个静态方法使用ExpandoMetaClass -
@Singleton
class ThrowError {
def parse ()
{
println "Anish"
}
}
ThrowError.metaClass.static.getMap = {m_var -> ThrowError.instance.parse(m_var) }
我正在使用gmaven插件来编译项目,同时发布MVN编译..........
[ERROR] Failed to execute goal org.codehaus.gmaven:gmaven-plugin:1.2:generateStubs (default) on project TestExpandoMetaClass: startup failed:
[ERROR] /C:/groovy/ThrowError.groovy: 4
: Invalid duplicate class definition of class ThrowError : The source /C:/groovy/ThrowError.groovy contains at least two definitions of the class ThrowError.
**[ERROR] One of the classes is a explicit generated class using the class statement, the other is a class generated from the s
cript body based on the file name. Solutions are to change the file name or to change the class name.**
[ERROR] @ line 4, column 1.
[ERROR] @Singleton
[ERROR] ^
[ERROR]
[ERROR] 1 error
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.gmaven:gmaven-plugin:1.2:generate
Stubs (default) on project TestExpandoMetaClass: startup failed:
/C:/groovyThrowError.groovy: 4: Invali
d duplicate class definition of class ThrowError : The source /groovy/ThrowError.groovy contains at least two definitions of the class ThrowError
这是我的pom.xml条目gmaven构建插件条目
<project>
............
............
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.1</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.gmaven</groupId>
<artifactId>gmaven-plugin</artifactId>
<version>1.2</version>
<configuration>
<providerSelection>1.7</providerSelection>
</configuration>
<dependencies>
<dependency>
<groupId>org.codehaus.gmaven.runtime</groupId>
<artifactId>gmaven-runtime-1.7</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>1.7.2</version>
</dependency>
</dependencies>
<executions>
<execution>
<goals>
<goal>generateStubs</goal>
<goal>compile</goal>
<goal>generateTestStubs</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
..........
..........
</project>
这里的答案与Groovy邮件列表中的答案相同,可能会有更多的解释…在Groovy中我们有脚本和类。类是具有类结构的一切,就像在Java中一样。例如,类B{}是一个类结构并定义了一个类B。脚本也是类,但它们不在这样的结构中。如果你现在有"类B{};def b = new b()",您有b的类结构,但也有内容为"def b = new b()"的脚本。我说过这也是一个类,但是这个类叫什么名字呢?名称由定义该脚本的文件名定义(如果没有文件,则选择script1456之类的名称)。现在您可以创建一个B.groovy,其内容为"类B{};def b = new b()"。会有一个名为B的类和一个同名的脚本。这是一种冲突。