优化代码，性能暴涨

src/org/kne/cloud/network/PortPair.java

@@ -0,0 +1,40 @@
+package org.kne.cloud.network;
+
+import java.util.Objects;
+
+public class PortPair {
+	private int sport;
+	private int dport;
+	@Override
+	public String toString() {
+		return sport+"->"+dport;
+	}
+	public PortPair(int sport, int dport) {
+		super();
+		this.sport = sport;
+		this.dport = dport;
+	}
+	public int getSport() {
+		return sport;
+	}
+	public int getDport() {
+		return dport;
+	}
+	@Override
+	public int hashCode() {
+		return Objects.hash(dport, sport);
+	}
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (getClass() != obj.getClass())
+			return false;
+		PortPair other = (PortPair) obj;
+		return dport == other.dport && sport == other.sport;
+	}
+	
+	
+}