同步获取响应数据

jsowell-pile/src/main/java/com/jsowell/pile/rpc/RpcClient.java

@@ -0,0 +1,52 @@
+package com.jsowell.pile.rpc;
+
+import io.netty.bootstrap.Bootstrap;
+import io.netty.channel.*;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.nio.NioSocketChannel;
+
+public class RpcClient {
+ 
+    public Channel connect(String host, Integer port) {
+        EventLoopGroup worker = new NioEventLoopGroup();
+        Channel channel = null;
+ 
+        try {
+            Bootstrap bootstrap = new Bootstrap();
+ 
+            bootstrap.group(worker)
+                    .channel(NioSocketChannel.class)
+                    .option(ChannelOption.AUTO_READ, true)
+                    .handler(new ClientChannelInitializer());
+ 
+            ChannelFuture channelFuture = bootstrap.connect(host, port).sync();
+ 
+            System.out.println("客户端启动");
+ 
+            channel = channelFuture.channel();
+ 
+            // 添加关闭监听器
+            channel.closeFuture().addListener(new ChannelFutureListener() {
+                @Override
+                public void operationComplete(ChannelFuture channelFuture) throws Exception {
+                    System.out.println("关闭客户端");
+                    worker.shutdownGracefully();
+                }
+            });
+ 
+        } catch (Exception e) {
+            e.printStackTrace();
+ 
+            if(channel == null || !channel.isActive()) {
+                worker.shutdownGracefully();
+            } else {
+                channel.close();
+            }
+ 
+        }
+ 
+        return channel;
+    }
+ 
+ 
+}