java.lang.NoClassDefFoundError: sun/misc/BASE64Encoder
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java.lang.NoClassDefFoundError: sun/misc/BASE64Encoder
提问by Max_Salah
I would like to connect some domain with java code. I can connect the domain in the browser as follow: http://username:[email protected]
我想用java代码连接一些域。我可以在浏览器中连接域,如下所示: http://username:[email protected]
I tryed the following:
我尝试了以下操作:
String enc = "username" + ":" + "password";
String encoded = new sun.misc.BASE64Encoder().encode(loginPassword.getBytes());
URL url = new URL("domain.com");
URLConnection conn = url.openConnection();
conn.setRequestProperty ("Authorization", "Basic " + encoded);
I get the error: 401/Unutorized... java.lang.NoClassDefFoundError: sun/misc/BASE64Encoder
我收到错误:401/Unutorized... java.lang.NoClassDefFoundError: sun/misc/BASE64Encoder
Is there any solution I can try?.
有什么我可以尝试的解决方案吗?
回答by Jesper
Oracle has announced the removalof those classes in Java 9.
You should not be using classes that are in sun.*
packages - those classes are not part of the public API of Java and can change in any new Java version.
您不应该使用sun.*
包中的类 - 这些类不是 Java 公共 API 的一部分,可以在任何新的 Java 版本中更改。
See Why Developers Should Not Write Programs That Call 'sun' Packagesin Oracle's documentation.
请参阅Oracle 文档中的为什么开发人员不应编写调用“sun”包的程序。
Instead of using class sun.misc.BASE64Encoder
:
而不是使用 class sun.misc.BASE64Encoder
:
If you are using Java 8, then use class java.util.Base64
for Base 64 encoding and decoding.
如果您使用的是 Java 8,则使用类java.util.Base64
进行 Base 64 编码和解码。
Otherwise, use a third-party library, for example class org.apache.commons.codec.binary.Base64
from Apache Commons Codec.
否则,请使用第三方库,例如org.apache.commons.codec.binary.Base64
来自Apache Commons Codec 的类。