在Java中將字符串ISO8859-1轉換為UTF-8

Question

我有一個Q編碼的字符串變量：

String s = "=?ISO-8859-1?Q?Merve_G=FCl?=";

我想在屏幕上寫出真實的字符 ：“ MerveGül”。

我怎樣才能做到這一點？

@缺口

String string = "=?ISO-8859-1?Q?Merve_G=FCl?=";
QCodec q = new QCodec();
        try 
        {
            q.decode(string);
            System.out.println(q.decode(kimdenIsim));
        } catch (DecoderException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } 

我收到此錯誤：

05-08 11:22:39.287: W/System.err(1142): org.apache.commons.codec.DecoderException: RFC 1522 violation: malformed encoded content
05-08 11:22:40.448: W/System.err(1142):     at org.apache.commons.codec.net.RFC1522Codec.decodeText(RFC1522Codec.java:102)
05-08 11:22:40.448: W/System.err(1142):     at org.apache.commons.codec.net.QCodec.decode(QCodec.java:230)
05-08 11:22:40.457: W/System.err(1142):     at com.mobil.eposta.GoruntuleActivity.EksizPosta(GoruntuleActivity.java:138)
05-08 11:22:40.457: W/System.err(1142):     at com.mobil.eposta.GoruntuleActivity.onCreate(GoruntuleActivity.java:52)
05-08 11:22:40.477: W/System.err(1142):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-08 11:22:40.477: W/System.err(1142):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
05-08 11:22:40.477: W/System.err(1142):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
05-08 11:22:40.497: W/System.err(1142):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
05-08 11:22:40.497: W/System.err(1142):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
05-08 11:22:40.507: W/System.err(1142):     at android.os.Handler.dispatchMessage(Handler.java:99)
05-08 11:22:40.517: W/System.err(1142):     at android.os.Looper.loop(Looper.java:123)
05-08 11:22:40.517: W/System.err(1142):     at android.app.ActivityThread.main(ActivityThread.java:4627)
05-08 11:22:40.517: W/System.err(1142):     at java.lang.reflect.Method.invokeNative(Native Method)
05-08 11:22:40.517: W/System.err(1142):     at java.lang.reflect.Method.invoke(Method.java:521)
05-08 11:22:40.517: W/System.err(1142):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
05-08 11:22:40.537: W/System.err(1142):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
05-08 11:22:40.537: W/System.err(1142):     at dalvik.system.NativeStart.main(Native Method)

第4條錯誤行顯示：q.decode（string）;

Answer 1

根據這個答案是否有可能通過這種方式。 為此，您需要JavaMail。 我剛剛測試成功。

import javax.mail.internet.MimeUtility;

String s = "=?ISO-8859-1?Q?Merve_G=FCl?=";
String string = MimeUtility.decodeText(s);

Answer 2

Apache Commons Codec具有用於解碼此格式的QCodec類。 只需將庫添加到您的項目中即可。

//String s must start with "=?" and end with "?="
QCodec q = new QCodec();
q.decode(s);

Answer 3

試試這個代碼

try {
    // Convert from Unicode to UTF-8
    String string = "abc\u5639\u563b";
    byte[] utf8 = string.getBytes("UTF-8");

    // Convert from UTF-8 to Unicode
    string = new String(utf8, "UTF-8");
} catch (UnsupportedEncodingException e) {
}