java - 文件未删除

Question

正在尝试删除以名称 TRTHIndicative_ 开头的文件夹中的特定文件。

但是文件没有删除，我使用下面的代码

testMethod(inputDir);
testMethod(outputFile);


private static void testMethod(String dirName){
    File directory = new File(dirName);

    // Get all files in directory
    File[] files = directory.listFiles();
    for (File file : files) {

        if (file.getName().startsWith("Indicative_")) {
            // Delete each file
            if(file.exists()){
                System.out.println("File is there!");
            }
            if (file.delete()) {
                // Failed to delete file
                System.out.println("Failed to delete " + file);
            } else {
                System.out.println("Deleted file succsfully");
            }
        }

    }

请检查并告知我是否有任何问题。

Answer 1

您混淆了 if 和 else - 如果文件是，File#delete() 返回 true 成功删除。因此，条件应该颠倒过来:

if (file.delete()) {
    System.out.println("Deleted file succesfully");
} else {
    // Failed to delete file
    System.out.println("Failed to delete " + file);
}