java 构建关于使用 Sun 专有 API 的警告
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Build warnings regarding using Sun proprietary API
提问by MeanwhileInHell
I am trying to clean up my build environment and have discovered a couple of warnings reported around usage of Sun proprietary API's.
我正在尝试清理我的构建环境，并且发现了一些关于 Sun 专有 API 使用情况的警告。
[javac] /workspace/<path-to-files>/Handler.java:18: warning: sun.net.www.protocol.http.Handler is Sun proprietary API and may be removed in a future release
[javac] public class Handler extends sun.net.www.protocol.http.Handler {
[javac] ^
[javac] /workspace/<path-to-files>/HttpClient.java:16: warning: sun.net.www.http.HttpClient is Sun proprietary API and may be removed in a future release
[javac] public class HttpClient extends sun.net.www.http.HttpClient {
[javac]
[javac] /workspace/<path-to-files>/HttpURLConnection.java:19: warning: sun.net.www.protocol.http.HttpURLConnection is Sun proprietary API and may be removed in a future release
[javac] public class HttpURLConnection extends sun.net.www.protocol.http.HttpURLConnection {
[javac] ^
and...
和...
[javac] /workspace/<path-to-files>/JavaFile.java:17: warning: sun.misc.BASE64Decoder is Sun proprietary API and may be removed in a future release
[javac] import sun.misc.BASE64Decoder;
[javac] ^
[javac] /workspace/<path-to-files>/JavaFile.java:338: warning: sun.misc.BASE64Encoder is Sun proprietary API and may be removed in a future release
[javac] BASE64Encoder encoder = new BASE64Encoder();
[javac] ^
Can anyone suggest a good alternative to these API's? Or can these be replaced with the official Java API's? I realise that these are just warnings, but this is something I plan on resolving.
任何人都可以建议这些 API 的替代品吗？或者这些可以用官方的 Java API 代替吗？我意识到这些只是警告，但这是我计划解决的问题。
回答by Jon Skeet
It's not clear why you're declaring your own HttpURLConnectionand Handlerclasses in the first place - are you sureyou want to compile those?
目前还不清楚为什么你宣称自己HttpURLConnection和Handler班级第一名-你一定要编译那些？
As for Base64 - I like this public domain implementationmyself.
至于 Base64 - 我自己喜欢这个公共领域的实现。
回答by Qwerky
If you have written a http client then you've reinvented the wheel. There's a really good one already in apache http client.
如果您编写了一个 http 客户端，那么您就重新发明了轮子。apache http client 中已经有一个非常好的。
If you want Base64 encoding/decoding there's an class for that in apache commons codec.
如果你想要 Base64 编码/解码，在apache commons codec 中有一个类。
回答by CAMOBAP
Apache Commons Codecinclude Base64class.
回答by zeusalmighty
For Base64, as of Java 8 you can use java.util.Base64.getEncoder().encode(Byte[])and java.util.Base64.getDecoder().decode(Byte[])
对于 Base64，从 Java 8 开始，您可以使用java.util.Base64.getEncoder().encode(Byte[])和java.util.Base64.getDecoder().decode(Byte[])
回答by laz
I'm not sure why you would need to use those sun.net.www.protocol.httpobjects directly in your code, as those are used internally by HttpUrlConnection. You can use that object instead of the internal ones. If that API doesn't meet your needs, there is Apache HttpClient.
我不确定为什么您需要sun.net.www.protocol.http在代码中直接使用这些对象，因为HttpUrlConnection. 您可以使用该对象而不是内部对象。如果该 API 不能满足您的需求，则可以使用Apache HttpClient。
As for base 64 encoding, you can use the one supplied with Java Maillike this:
至于 base 64 编码，您可以使用Java Mail提供的编码，如下所示：
final InputStream decoded = MimeUtility.decode(encodedInput, "base64");
