Question

我正在使用谷歌闭包编译器来格式化我的网络项目中的一些JavaScript文件。因此，我正在编写一个Java应用程序来遍历根目录下的所有js文件。出于测试目的，我只试试一个单独的javascript文件，如下所示：

public static void main(String[] args){
        JSBeautifier js = new JSBeautifier();
        js.beautify("'C:/CodeScanner/src/test/resources/testJS.js'");
    }

    public void beautify(String filePath) {
        String srcFileArg = "--js " + filePath;

        ProcessBuilder pb = new ProcessBuilder("java", "-jar" , "compiler.jar", srcFileArg).inheritIO();

        try {
            Process p  = pb.start();
            p.waitFor();
            BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
            while(br.readLine() != null){
                System.out.println(br.readLine());
            }

        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

然而，当它被执行时，它给出了例外：

Exception in thread "main" java.nio.file.InvalidPathException: Illegal char <:> at index 7: --js 'C:/CodeScanner/src/test/resources/testJS.js'
    at sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:182)
    at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:153)
    at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:77)
    at sun.nio.fs.WindowsPath.parse(WindowsPath.java:94)
    at sun.nio.fs.WindowsFileSystem.getPath(WindowsFileSystem.java:255)
    at java.nio.file.Paths.get(Paths.java:84)
    at com.google.javascript.jscomp.CommandLineRunner.findJsFiles(CommandLineRunner.java:1753)
    at com.google.javascript.jscomp.CommandLineRunner.findJsFiles(CommandLineRunner.java:1730)
    at com.google.javascript.jscomp.CommandLineRunner$Flags.getJsFiles(CommandLineRunner.java:928)
    at com.google.javascript.jscomp.CommandLineRunner.initConfigFromFlags(CommandLineRunner.java:1325)
    at com.google.javascript.jscomp.CommandLineRunner.<init>(CommandLineRunner.java:1176)
    at com.google.javascript.jscomp.CommandLineRunner.main(CommandLineRunner.java:1834)

在命令行中，可以成功执行此操作（java -jar compiler.jar --js＆＃39; C：/CodeScanner/src/test/resources/testJS.js'）。

任何人都可以伸出援手吗？

Answer 1

看起来ProcessBuilder正在尝试执行：

java "-jar" "compiler.jar" "--js 'C:/CodeScanner/src/test/resources/testJS.js'"

这导致js编译器看到：

argv[0] = "--js 'C:/CodeScanner/src/test/resources/testJS.js'"

而不是：

argv[0] = "--js"
argv[1] = "'C:/CodeScanner/src/test/resources/testJS.js'"

要纠正这个问题，我会尝试更改：

String srcFileArg = "--js " + filePath;
ProcessBuilder pb = new ProcessBuilder("java", "-jar" , "compiler.jar", srcFileArg).inheritIO();

到

String srcFileArg = filePath;
ProcessBuilder pb = new ProcessBuilder("java", "-jar" , "compiler.jar", "--js", srcFileArg).inheritIO();

得到了java.nio.file.InvalidPathException：非法的char＆lt;：＆gt;在索引7时使用闭包编译器格式化javascript文件

1 个答案: