HttpClient重定向到带有空格抛出异常的URL [英] HttpClient redirecting to URL with spaces throwing exception

问题描述

我正在访问一个将我重定向到其中带有空格的URL的URL.(使用HttpClient 4.x)如何防止它引发错误(用％20 not +代替空格)

I am accessing a URL that's redirecting me to a URL with spaces in it. (Using HttpClient 4.x) How do I prevent this from throwing an error (replacing the spaces with %20 not +)

08-06 02:45:56.486: WARN/System.err(655): org.apache.http.client.ClientProtocolException
08-06 02:45:56.493: WARN/System.err(655):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:557)
08-06 02:45:56.534: WARN/System.err(655):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:509)
08-06 02:45:56.603: WARN/System.err(655):     at com.romcessed.romsearch.searchproviders.DopeRomsConnector$DownloadROMTask.doInBackground(DopeRomsConnector.java:636)
08-06 02:45:56.623: WARN/System.err(655):     at com.romcessed.romsearch.searchproviders.DopeRomsConnector$DownloadROMTask.doInBackground(DopeRomsConnector.java:1)
08-06 02:45:56.643: WARN/System.err(655):     at android.os.AsyncTask$2.call(AsyncTask.java:185)
08-06 02:45:56.663: WARN/System.err(655):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
08-06 02:45:56.683: WARN/System.err(655):     at java.util.concurrent.FutureTask.run(FutureTask.java:137)
08-06 02:45:56.693: WARN/System.err(655):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
08-06 02:45:56.713: WARN/System.err(655):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
08-06 02:45:56.713: WARN/System.err(655):     at java.lang.Thread.run(Thread.java:1096)
08-06 02:45:56.743: WARN/System.err(655): Caused by: org.apache.http.ProtocolException: Invalid redirect URI: http://somewebsite.com/some file with spaces.zip
08-06 02:45:56.787: WARN/System.err(655):     at org.apache.http.impl.client.DefaultRedirectHandler.getLocationURI(DefaultRedirectHandler.java:116)
08-06 02:45:56.803: WARN/System.err(655):     at org.apache.http.impl.client.DefaultRequestDirector.handleResponse(DefaultRequestDirector.java:892)
08-06 02:45:56.813: WARN/System.err(655):     at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:457)
08-06 02:45:56.843: WARN/System.err(655):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
08-06 02:45:56.843: WARN/System.err(655):     ... 9 more
08-06 02:45:56.873: WARN/System.err(655): Caused by: java.net.URISyntaxException: Illegal character in path at index #: http://somewebsite.com/some file with spaces.zip
08-06 02:45:56.913: WARN/System.err(655):     at java.net.URI$Helper.validatePath(URI.java:448)
08-06 02:45:56.923: WARN/System.err(655):     at java.net.URI$Helper.parseURI(URI.java:398)
08-06 02:45:56.953: WARN/System.err(655):     at java.net.URI$Helper.access$100(URI.java:302)
08-06 02:45:56.963: WARN/System.err(655):     at java.net.URI.<init>(URI.java:87)
08-06 02:45:56.993: WARN/System.err(655):     at org.apache.http.impl.client.DefaultRedirectHandler.getLocationURI(DefaultRedirectHandler.java:114)
08-06 02:45:57.013: WARN/System.err(655):     ... 12 more

推荐答案

Apache HTTP库允许您注册一个RedirectHandler对象，该对象在发生重定向时将被调用.您可以使用它来拦截重定向并进行修复.

The Apache HTTP library allows you to register a RedirectHandler object that will get invoked whenever a redirect occurs. You can use this to intercept the redirect and fix it.

(也就是说，向您发送此重定向的网站已损坏.您应该与他们联系并告知他们.)

(That being said, the site that's sending you this redirect is broken. You should contact them and let them know.)

class CustomRedirectHandler extends DefaultRedirectHandler {
    public URI getLocationURI(HttpResponse response, HttpContext context) {
        // Extract the Location: header and manually convert spaces to %20's
        // Return the corrected URI
    }
}

DefaultHttpClient httpClient = new DefaultHttpClient();
RedirectHandler customRedirectHandler = new CustomRedirectHandler();
//...
httpClient.setRedirectHandler(customRedirectHandler);

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