读取文件后,我试图删除它,但出现以下错误:
java.io.IOException: Unable to delete file test.zip at org.apache.commons.io.FileUtils.forceDelete (FileUtils.java:1390) at org.apache.commons.io.FileUtils.cleanDirectory (FileUtils.java:1044) at org.apache.commons.io.FileUtils.deleteDirectory (FileUtils.java:977)
这是我的代码。我一直小心地在 finally 子句中关闭 InputStream,然后才调用删除文件的方法,但即使这样我也只能在程序停止时删除它。
InputStream is = null;
try {
is = new URL(filePath).openStream(); // filePath is a string containing the path to the file like http://test.com/file.zip
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "utf-8"));
String line;
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null) {
sb.append(line.trim());
}
String xml = sb.toString(); // this code is working, the result of the "xml" variable is as expected
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (is != null) {
is.close();
}
} catch (Exception e) {
e.printStackTrace();
}
removeFileAndFolder(absolutePath);
}
private void removeFileAndFolder(String absolutePath) {
new Thread(new Runnable() {
@Override
public void run() {
try {
String folder = getFolder(absolutePath); // this method just get the path to the folder, because I want to delete the entire folder, but the error occurs when deleting the file
FileUtils.deleteDirectory(new File(folder));
} catch (Exception e) {
e.printStackTrace();
}
}
}).start();
}
经过一些测试,我发现我可以手动删除“is = new URL (filePath) .openStream ();”行之前的文件。在它之后,甚至在“is.close ();”行之后除非我停止程序,否则我无法手动删除文件。
最佳答案
我明白了。我正在通过 url (is = new URL(filePath).openStream();) 打开文件,并试图通过绝对路径删除它。我将其更改为“is = new FileInputStream(absoluteFilePath);”并且有效!
关于java - 即使关闭 InputStream 也无法删除文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54221659/