Intellij Idea-构建jar之后Java程序无法正常运行

Question

I have a weird problem with java - I am programming in Intellij Idea, I am using this little code to make basic authorization to site

        String authString = name + ":" + password;
        byte[] binaryData = authString.getBytes();
        String authStringEnc = new String(Base64.encodeBase64(binaryData));
        URL url = new URL(webPage);
        URLConnection urlConnection = url.openConnection();
        urlConnection.setRequestProperty("Authorization", "Basic " + authStringEnc);
        InputStream is_auth = urlConnection.getInputStream();
        InputStreamReader isr = new InputStreamReader(is_auth);

This code worked for some weeks, but I continued writing my program. Then yesterday I saw that - program works when I click run in Intellij, but when I start a .jar file, this line cannot be done:

        String authStringEnc = new String(Base64.encodeBase64(binaryData));

I don't know why, but program stops when doing this line. But when I click run or debug in Intellij, everything is working.

Btw. I am using this library for encodeBase64:

        import org.apache.commons.codec.binary.Base64;

If you don't know why it isn't working, maybe you can share with me idea to make a basic authorization to site. Thanks in advance.

Answer 1

You need to add the Apache Commons Codec jar to your classpath when you run the jar file . You should make sure that any other jar files/libraries that you have added in IntelliJ are also on the classpath.

Answer 2

You should use logging in order to research your stacktrace. Probably you have some ClassNotFound exception or something similarly obvious.

Answer 3

The answer is: I only had to refresh jar artifact. I deleted old artifact and created it again, after this everything is working well.