我在Maven中遇到编译错误,但在Eclipse中一切正常。
我做错了什么还是Maven错误?
我创建了一个代码段,因此您可以尝试重现它。
这是Java源文件和pom.xml。
package p1;
import p1.A.D.C;
import p1.p2.E;
public class A {
interface B<T> {
T methodB();
}
class D implements B<E> {
C c = new C();
public C getC() {
return c;
}
class C {
public void methodC() {
System.out.println(this);
}
}
@Override
public E methodB() {
return new E();
}
}
public void methodA() {
D d = new D();
d.methodB();
C c = d.getC();
c.methodC();
}
public static void main(String[] args) {
A a = new A();
a.methodA();
}
}
package p1.p2;
public class E {
}
<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>mvntst</groupId>
<artifactId>test</artifactId>
<version>0</version>
<packaging>jar</packaging>
<name>mvntst</name>
</project>
运行时mvn clean compile
,得到以下输出:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project test: Compilation failure
[ERROR] /C:/dev/test/CompilerTest/MavenTest/src/main/java/p1/A.java:[6,30] cannot find symbol
[ERROR] symbol: class E
[ERROR] location: class p1.A
[ERROR] -> [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/MojoFailureException
这是结果mvn --version
:
Apache Maven 3.3.1 (cab6659f9874fa96462afef40fcf6bc033d58c1c; 2015-03-13T23:10:27+03:00)
Maven home: C:\dev\apache-maven-3.3.1\bin\..
Java version: 1.8.0_40, vendor: Oracle Corporation
Java home: C:\Program Files\Java\jdk1.8.0_40\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"
如果您反转进口顺序...
import p1.p2.E;
import p1.A.D.C;
...它会编译就好了。这可能是由于编译器假定文件夹A,D和C位于下方p1
,情况并非如此。
但不是这样做(这只是感觉错了),你应该改变你带来怎样C
的methodA
。
public void methodA() {
D d = new D();
d.methodB();
D.C c = d.getC();
c.methodC();
}
您也可以摆脱内部类的导入,因为上述内容不再需要。
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