如何在URL中处理UTF-8编码的韩文字符，以便使用Android URL对象下载图像

Question

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目标

通过包含韩文字符（UTF-8编码）的URL字符串下载图像。

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问题

在以下代码中，String urlString带有一个字符串，其中包含例如韩语字符콘（其UTF-8代码为％EC％BD％98）：

http://domain.com/image/콘test.png

在此声明中捕获到IOException：

bitmap = BitmapFactory.decodeStream(urlObject.openConnection().getInputStream()); // try catch IOException

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代码

public void loadImageWithUrlString(ImageView imageView, String urlString) {
        URL urlObject;
            try {
                urlObject = new URL(urlString); // try catch MalformedURLException
                Bitmap bitmap;
                bitmap = BitmapFactory.decodeStream(urlObject.openConnection().getInputStream()); // try catch IOException
                imageView.setImageBitmap(bitmap);
            } catch (MalformedURLException e) {
                Log.d("congliu", "loadImageWithUrlString() : oops this url is caught a MalformedURLException " + urlString);
                imageView.setImageResource(R.drawable.default_image);
                e.printStackTrace();
            } catch (IOException e) {
                Log.d("congliu", "loadImageWithUrlString() : oops this url is caught a IOException " + urlString);
                imageView.setImageResource(R.drawable.default_image);
                e.printStackTrace();
            }
    }

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更新 - 错误消息

08-16 16:51:59.194: W/System.err(6911): java.io.FileNotFoundException: http://domain.com/image/우test.png
08-16 16:51:59.194: W/System.err(6911):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:521)
08-16 16:51:59.194: W/System.err(6911):     at com.domain.android.MainActivity.loadImageWithUrlString(MainActivity.java:1288)
08-16 16:51:59.194: W/System.err(6911):     at com.domain.android.MainActivity$13$1.run(MainActivity.java:926)
08-16 16:51:59.194: W/System.err(6911):     at android.os.Handler.handleCallback(Handler.java:587)
08-16 16:51:59.194: W/System.err(6911):     at android.os.Handler.dispatchMessage(Handler.java:92)
08-16 16:51:59.194: W/System.err(6911):     at android.os.Looper.loop(Looper.java:130)
08-16 16:51:59.194: W/System.err(6911):     at android.app.ActivityThread.main(ActivityThread.java:3691)
08-16 16:51:59.194: W/System.err(6911):     at java.lang.reflect.Method.invokeNative(Native Method)
08-16 16:51:59.194: W/System.err(6911):     at java.lang.reflect.Method.invoke(Method.java:507)
08-16 16:51:59.194: W/System.err(6911):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912)
08-16 16:51:59.194: W/System.err(6911):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670)
08-16 16:51:59.194: W/System.err(6911):     at dalvik.system.NativeStart.main(Native Method)

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更新 - UTF-8

很抱歉，我误解了UTF-8代码，正确的版本已经放到了目标部分。

Answer 1

您可以先使用以下方法解码您的网址：

String values = URLDecoder.decode（url，“UTF-8”）;

然后，使用该字符串。

Answer 2

好的我有两种选择，每次尝试

...
InputStream is=urlObject.openConnection().getInputStream();
is.setEncoding("ISO-8859-1"); // try "UTF-8" if this doesn't work
bitmap = BitmapFactory.decodeStream(is);
...

或

String imageURL = "우test.png";
String host = "http://domain.com/image/";
String encodedUrl = host + UrlEncoder.encode(imageURL ,"utf-8");