您好我有一个Netty Server,其处理程序应该接受字符串.它似乎只接收最多1024个字节的内容.如何增加缓冲区大小.我已经尝试过了
bootstrap.setOption("child.sendBufferSize",1048576);
bootstrap.setOption("child.receiveBufferSize",1048576);
@H_502_4@没有成功.
@H_502_4@处理程序如下
public class TestHandler extends SimpleChannelHandler {
@Override
public void messageReceived(ChannelHandlerContext ctx,MessageEvent e) {
ChannelBuffer buf = (ChannelBuffer) e.getMessage();
String response = "";
if (buf.readable()) {
response = buf.toString(CharsetUtil.UTF_8);
System.out.println("CONTENT: " + response);
}
System.out.println(response);
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx,ExceptionEvent e) {
e.getCause().printStackTrace();
Channel ch = e.getChannel();
ch.close();
}
@H_502_4@}
解决方法
你在使用UDP吗？如果是这样,数据包将以1024字节最大.此代码注释位于QOTM代码示例中：
@H_502_4@Allow packets as large as up to 1024 bytes (default is 768). You could@H_502_4@如果您使用TCP,则应在处理之前将管道解码器和字符串解码器添加到管道中;像这样的东西：
increase or decrease this value to avoid truncated packets or to
improve memory footprint respectively. @H_502_4@Please also note that a large UDP packet might be truncated or dropped
by your router no matter how you configured this option. In UDP,a
packet is truncated or dropped if it is larger than a certain size,
depending on router configuration. IPv4 routers truncate and IPv6
routers drop a large packet. That’s why it is safe to send small
packets in UDP.
pipeline.addLast("frameDecoder",new DelimiterBasedFrameDecoder(80960,Delimiters.lineDelimiter()));
pipeline.addLast("stringDecoder",new StringDecoder(CharsetUtil.UTF_8));
pipeline.addLast("myHandler",new TestHandler());
@H_502_4@请注意,您需要修改测试处理程序,因为MessageEvent实际上将包含您的字符串.
@Override
public void messageReceived(ChannelHandlerContext ctx,MessageEvent e) {
String response = (String) e.getMessage();
System.out.println(response);
}
@H_502_4@合理 ？