windows/linux box上的java文件分隔符问题

4 月 Questions & Answers 638

下面的枚举帮助我避免在JUNIT测试用例的不同位置硬编码目录值。这似乎适用于IDE内部的开发环境，即窗口框

一旦我把这段代码放到LINUX机器上，JUNIT类就找不到目录了。文件。exists（sourcePath）返回false。相同的代码在IDE（windows）上返回true。这里有什么问题吗

public enum DIRECTORY {

    OUTPUT("resources/output"), RESOURCE("resources/resource"), PROCESSED_OUTPUT(
            "resources/output/resources/resource"), EXPLODED_WEBAPPS(
            "temp/webapps"), WEBAPPS("webapps");

    private String _name;

    private DIRECTORY(String _name) {

        this._name = _name;

    }

    public String getDirectoryName() {
        return _name;
    }

}

枚举的示例使用代码

private void restore_csv_files() {

        Path _processed_output = Paths.get(DIRECTORY.PROCESSED_OUTPUT
                .getDirectoryName());
        Path resource = Paths.get(DIRECTORY.RESOURCE.getDirectoryName());

        FileUtility.copy_files(_processed_output, resource);
        FileUtility.delete_files(_processed_output);
        FileUtility.delete_directory(_processed_output);

    }

文件Util类

public static void copy_files(Path sourcePath, Path targetPath) {
        if (Files.exists(sourcePath) && Files.exists(targetPath)) {
            try {
                Files.walkFileTree(sourcePath, new SimpleFileVisitor<Path>() {

                    @Override
                    public FileVisitResult visitFile(final Path file,
                            final BasicFileAttributes attrs) throws IOException {
                        Files.copy(file,
                                targetPath.resolve(sourcePath.relativize(file)));
                        return FileVisitResult.CONTINUE;
                    }
                });
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        } else {
            System.out.println("Either Source or Target path does not exist");
        }
    }

基本上，在windows上，这个东西可以工作，但在linux机器上，获得一个sysout“源路径或目标路径都不存在”（参见上面的sysout代码）

样本异常

java.nio.file.NoSuchFileException: webapps/web.war
    at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
    at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
    at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
    at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
    at com.temp.utils.FileUtility.alter_date_time_of_file(Unknown Source)
    at com.temp.webengine.WebEngineTest.test_web_app_updated_true(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)

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windows/linux box上的java文件分隔符问题

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