noredirect.html
来自「java类库详细讲解」· HTML 代码 · 共 153 行
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<TITLE>Preventing Automatic Redirects in a HTTP Connection
(Java Developers Almanac Example)
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<META CONTENT="Patrick Chan" NAME="AUTHOR">
<META CONTENT="Code Examples from The Java Developers Almanac 1.4" NAME="DESCRIPTION">
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<h3>
e143.
Preventing Automatic Redirects in a HTTP Connection</h3>
By default, when you make an HTTP connection using <code>URLConnection</code>,
the system automatically follows redirects until it reaches the final
destination. This example demonstrates how to prevent automatic
redirection.
<pre>
// Disable automatic redirects for all HTTP requests
HttpURLConnection.setFollowRedirects(false);
// Disable automatic redirects for a particular connection
try {
// Create a URLConnection object for a URL
URL url = new URL(<font color="#0066ff"><i>"http://hostname:80"</i></font>);
URLConnection conn = url.openConnection();
// Disable automatic redirects just for this connection
HttpURLConnection httpConn = (HttpURLConnection)conn;
httpConn.setInstanceFollowRedirects(false);
// Send the request to the server
conn.connect();
} catch (MalformedURLException e) {
} catch (IOException e) {
}
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Related Examples
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e140. <a class="eglink" href="GetHeaders.html?l=rel">
Getting the Response Headers from an HTTP Connection
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e141. <a class="eglink" href="GetCookies.html?l=rel">
Getting the Cookies from an HTTP Connection
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e142. <a class="eglink" href="SendCookie.html?l=rel">
Sending a Cookie to an HTTP Server
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See also:
<a class="eglink" href="/egs/java.net/pkg.html?l=rel#Datagram">
Datagram
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<a class="eglink" href="/egs/java.net/pkg.html?l=rel#Encodings">
Encodings
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<a class="eglink" href="/egs/java.net/pkg.html?l=rel#Hostnames%20and%20IP%20Addresses">
Hostnames and IP Addresses
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<a class="eglink" href="/egs/java.net/pkg.html?l=rel#Multicast">
Multicast
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<a class="eglink" href="/egs/java.net/pkg.html?l=rel#Sockets">
Sockets
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<a class="eglink" href="/egs/java.net/pkg.html?l=rel#URLs">
URLs
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