NEZ-762 OLP_exporter程序开发：olp_exporter 首次提交

src/main/java/com/nis/util/UdpUtils.java

@@ -0,0 +1,48 @@
+package com.nis.util;
+
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class UdpUtils {
+	
+	private static final Logger logger = LoggerFactory.getLogger(TextFormatUtils.class);
+	
+	public static String send(String sendIp,Integer slot,int timeout) {
+		String rlt = "";
+		DatagramSocket ds = null;
+		try {
+			ds = new DatagramSocket();//通过DatagramSocket对象创建udp服务
+			ds.setSoTimeout(timeout);
+	//		String line = "00 06 0502 00 00 68c2"; //发送的16进制字符串
+			String slotStr = slot+"";
+			if(slot<10) {
+				slotStr = "0"+slotStr;
+			}
+			String line = "00 "+slotStr+" 0502 00 00"; //发送的16进制字符串
+			byte[] buf = HexUtils.hexStringToByteArray(line);
+			DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getByName(sendIp),6800);//发送至指定IP，指定端口
+			ds.send(dp);//通过send方法将数据包发送出去
+			//定义数据包,用于存储数据
+			byte[] buf2 = new byte[8];
+			DatagramPacket dp2 = new DatagramPacket(buf2,buf2.length);
+			ds.receive(dp2);//通过服务的receive方法将收到数据存入数据包中,receive()为阻塞式方法
+			//通过数据包的方法获取其中的数据
+			String ip = dp2.getAddress().getHostAddress();
+	        
+			System.out.println(ip+"::"+HexUtils.bytesToHexString(buf2));
+			
+			rlt = HexUtils.bytesToHexString(buf2);
+		}catch (Exception e) {
+			logger.error(sendIp+"::"+slot+">>"+e.getMessage());
+		}finally {
+			if(ds!=null) {
+				ds.close();//关闭资源
+			}
+		}
+		return rlt;
+	}
+}