由于我是 Java 新手，我創建了一種解壓縮受密碼保護的 zip 文件的方法，我使用 zip4j 庫來解壓縮 zip 文件，密碼正確時代碼工作正常，但密碼錯誤時如何處理ZipException（net.lingala.zip4j.exception.ZipException：net.lingala.zip4j.exception.ZipException：net.lingala.zip4j.exception.ZipException：文件密碼錯誤：Demo.zip）并顯示適當的消息（密碼錯誤！ ）。請幫助，這是我的代碼。import net.lingala.zip4j.core.ZipFile;import net.lingala.zip4j.exception.ZipException;import net.lingala.zip4j.model.ZipParameters;import net.lingala.zip4j.util.Zip4jConstants;public class UnunzipDemo{ public void unzipFilesWithPassword(String sourceZipFilePath,String extractedZipFilePath,String password){ try { ZipFile zipFile = new ZipFile(sourceZipFilePath); if (zipFile.isEncrypted()) { zipFile.setPassword(password); } zipFile.extractAll(extractedZipFilePath); System.out.println("Done"); } catch (ZipException e) { e.printStackTrace(); } } public static void main(String[] args) { String sourceZipFilePath="E:/MyFiles/Files/Zip/Demo.zip"; String extractedZipFilePath="E:/MyFiles/Files/Unzip/"; String password="JOEL"; //Correct Password UnunzipDemo unzipDemo=new UnunzipDemo(); unzipDemo.unzipFilesWithPassword(sourceZipFilePath,extractedZipFilePath,password); }}
2 回答
暮色呼如
TA貢獻1853條經驗 獲得超9個贊
也許您可以從控制臺讀取密碼。例如：
private static String password = "123";
public static void main(String[] args) {
// read the input password from console
// if you have UI, maybe you can read it from some way.
Scanner sc = new Scanner(System.in);
String inputPassword = sc.next();
while (true) {
//do something...
try {
unzip(inputPassword);
break;
} catch (Exception e) {
inputPassword = sc.next();
}
}
}
private static void unzip(String inputPassword) {
if (inputPassword.equals(password)) {
//unzip
} else {
// just demo. In your case, this is ZipException
throw new IllegalArgumentException("wrong password");
}
}
FFIVE
TA貢獻1797條經驗 獲得超6個贊
您還可以檢查錯誤代碼。
public void unzipFilesWithPassword(String sourceZipFilePath,String extractedZipFilePath,String password){
try {
ZipFile zipFile = new ZipFile(sourceZipFilePath);
if (zipFile.isEncrypted()) {
zipFile.setPassword(password);
}
zipFile.extractAll(extractedZipFilePath);
System.out.println("Done");
}
catch (ZipException e) {
if (e.getCode == ZipExceptionConstants.WRONG_PASSWORD) {
// Handle wrong password scenario
System.out.println("Wrong password");
} else {
//Handle other exception scenario - printing out error messages?
}
}
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