@@ -59,6 +59,8 @@
 * [使用Jetty实现Http Server Mock作单元测试](src/cn/aofeng/demo/jetty)
 * [使用WireMock实现Http Server Mock作单元测试](src/cn/aofeng/demo/wiremock)
 
+##其他
+* [获取主机信息](src/cn/aofeng/demo/misc/GetHostInfo.java)
 
 #Java高级
 ##网络与I/O
@@ -68,6 +70,9 @@
 * [NIO 缓冲区](src/cn/aofeng/demo/nio/BufferIO.java)
 * [NIO 内存映射](src/cn/aofeng/demo/nio/MemoryMapper.java)
 * [NioEchoServer](src/cn/aofeng/demo/nio/NioEchoServer.java)
+* [netty4.x-DiscardServer]()
+* [netty4.x-DiscardServer]()
+* [netty4.x-DiscardServer]()
 
 ###文章
 * [NIO - 入门篇（笔记）](http://aofengblog.blog.163.com/blog/static/6317021200892145321884/)
 
@@ -0,0 +1,63 @@
+package cn.aofeng.demo.misc;
+
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.net.UnknownHostException;
+import java.util.Enumeration;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Properties;
+import java.util.Set;
+
+/**
+ * 获取本机IP和主机名以及Java环境信息。
+ * 
+ * @author <a href="mailto:[email protected]">聂勇</a>
+ */
+public class GetHostInfo {
+
+    /**
+     * @param args
+     * @throws UnknownHostException 
+     * @throws SocketException 
+     */
+    public static void main(String[] args) throws UnknownHostException, SocketException {
+        InetAddress address =  InetAddress.getLocalHost();
+        System.out.println("计算机名：" + address.getHostName());
+        Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
+        while (nis.hasMoreElements()) {
+            StringBuilder buffer = new StringBuilder();
+            NetworkInterface ni = nis.nextElement();
+            buffer.append("网卡：").append(ni.getName());
+            buffer.append("    绑定IP：");
+            Enumeration<InetAddress> ias = ni.getInetAddresses();
+            int count  = 0;
+            while (ias.hasMoreElements()) {
+                InetAddress ia = ias.nextElement();
+                if (count > 0) {
+                    buffer.append(", ");
+                }
+                buffer.append(ia.getHostAddress());
+            }
+            System.out.println(buffer.toString());
+        }
+        
+        System.out.println("Java环境信息:");
+        System.out.println("---------------------------------------------------:");
+        Properties pros = System.getProperties();
+        Set<Entry<Object, Object>> javaEnums = pros.entrySet();
+        for (Entry<Object, Object> entry : javaEnums) {
+            System.out.println(entry.getKey() + " : " + entry.getValue());
+        }
+        System.out.println("");
+        System.out.println("系统环境信息:");
+        System.out.println("---------------------------------------------------:");
+        Map<String, String> envs = System.getenv();
+        Set<Entry<String, String>> envSet = envs.entrySet();
+        for (Entry<String, String> entry : envSet) {
+            System.out.println(entry.getKey() + " : " + entry.getValue());
+        }
+    }
+
+}