java.lang.ClassCastException:libcore.net.http.HttpURLConnectionImpl无法转换为javax.net.ssl.HttpsURLConnec

本文介绍了java.lang.ClassCastException:libcore.http.HttpURLConnectionImpl无法转换为javax.ssl.HttpsURLConnection的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在编写一些代码，以通过HTTPS将文件从设备上传到云.

I'm writing a bit of code to upload a file from the device to the cloud over HTTPS.

相关代码段:

HttpsURLConnection conn = null; URL url = new URL(urlstring); conn = (HttpsURLConnection) url.openConnection(); // exception here.

但是强制转换无法编译:

But the cast won't compile:

06-20 15:58:05.311: E/FNF(30286): java.lang.ClassCastException: libcore.http.HttpURLConnectionImpl cannot be cast to javax.ssl.HttpsURLConnection

我发现了类似的问题:使用Java类HttpsURLConnection ，但我没有导入任何内容从太阳包.

I found this similar question: Using java class HttpsURLConnection, but I am not importing anything from the sun package.

我的进口商品:

import java.io.DataOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.URL; import android.Uri; import javax.ssl.HttpsURLConnection; import android.util.Log; import edu.mit.media.funf.storage.RemoteFileArchive; import edu.mit.media.funf.util.LogUtil;

我已经为此花了一段时间了，有什么建议吗?

I've been scratching my head about this one for a while now, any suggestions?

推荐答案

方法1: 您的urlString必须以而不是开头，才能将其转换为HttpsURLConnection.

Method 1: Your urlString must begin with and not for you to be able to cast it to a HttpsURLConnection.

方法2: 如果您的urlString以开头，则将HttpsURLConnection更改为HttpURLConnection应该可以

Method 2: if your urlString starts with , changing HttpsURLConnection to HttpURLConnection should work