Handling HTTP 302 Moved Temporarily requests in netty

问题

I am using netty http client to fetch urls using netty. However, for some urls which are redirecting to some other page, I am unable to fetch the content of the final page using my client. I want to know how to handle 302 redirects in my response handler.

Below is the code used in messageReceived function of my response handler.

@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
        if (!readingChunks) {
            HttpResponse response = (HttpResponse) e.getMessage();

            System.out.println("STATUS: " + response.getStatus());
            System.out.println("VERSION: " + response.getProtocolVersion());
            System.out.println();

            if (!response.getHeaderNames().isEmpty()) {
                for (String name: response.getHeaderNames()) {
                    for (String value: response.getHeaders(name)) {
                        System.out.println("HEADER: " + name + " = " + value);
                    }
                }
                System.out.println();
            }

            if (response.isChunked()) {
                readingChunks = true;
                System.out.println("CHUNKED CONTENT {");
            } else {
                ChannelBuffer content = response.getContent();
                if (content.readable()) {
                    System.out.println("CONTENT {");
                    System.out.println(content.toString(CharsetUtil.UTF_8));
                    System.out.println("} END OF CONTENT");
                }
            }
        } else {
            HttpChunk chunk = (HttpChunk) e.getMessage();
            if (chunk.isLast()) {
                readingChunks = false;
                System.out.println("} END OF CHUNKED CONTENT");
            } else {
                System.out.print(chunk.getContent().toString(CharsetUtil.UTF_8));
                System.out.flush();
            }
        }
    }

来源：https://stackoverflow.com/questions/11364379/handling-http-302-moved-temporarily-requests-in-netty