2019独角兽企业重金招聘Python工程师标准>>>
文章图片

grpc 端口 9898

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.Socket; import java.net.UnknownHostException; import java.nio.charset.Charset; /** * wiresharkgrpc 客户端 发送报文 * 505249202a20485454502f322e300d0a0d0a534d0d0a0d0a000018040000000000000200000000000300000000000400100000000600002000 000004080000000000000f0001 000000040100000000 000076012400000003000000000f418ca0e41d0b4d65645905b3b96c44946272d141fc1eca245f71a9ae82b1b87eb1968a0f83865f8b1d75d0620d263d4c4d656440027465864d833505b11f7a909acac8b741f71ad51529f4c057081707408e9acac8b0c842d6958b510f21aa9b839bd9ab408a9acac8b26c190ab466ab0000000b00010000000300000000060a0474657374 * */ public class TCPClient { public static void main(String[] args) {test(); } public static void test() {//没问题 String data = "https://www.it610.com/article/505249202a20485454502f322e300d0a0d0a534d0d0a0d0a000018040000000000000200000000000300000000000400100000000600002000000004080000000000000f0001000000040100000000000076012400000003000000000f418ca0e41d0b4d65645905b3b96c44946272d141fc1eca245f71a9ae82b1b87eb1968a0f83865f8b1d75d0620d263d4c4d656440027465864d833505b11f7a909acac8b741f71ad51529f4c057081707408e9acac8b0c842d6958b510f21aa9b839bd9ab408a9acac8b26c190ab466ab0000000b00010000000300000000060a0474657374"; //有问题 //data = "https://www.it610.com/article/000076012400000003000000000f418ca0e41d0b4d65645905b3b96c44946272d141fc1eca245f71a9ae82b1b87eb1968a0f83865f8b1d75d0620d263d4c4d656440027465864d833505b11f7a909acac8b741f71ad51529f4c057081707408e9acac8b0c842d6958b510f21aa9b839bd9ab408a9acac8b26c190ab466ab0000000b00010000000300000000060a0474657374"; int serverPort = 9898; Socket sock; try { sock = new Socket("localhost", serverPort); BufferedReader in = new BufferedReader( new InputStreamReader(sock.getInputStream(), Charset.forName("UTF-8"))); /* * BufferedWriter out = new BufferedWriter(new OutputStreamWriter( * sock.getOutputStream(),Charset.forName("UTF-8"))); */OutputStream out = sock.getOutputStream(); byte[] bytes = TypeConversion.hexString2Bytes(data); System.out.println("bytes===="+bytes); out.write(bytes); out.flush(); String inputLine = in.readLine(); System.out.println("Data : " + inputLine); in.close(); out.close(); sock.close(); } catch (UnknownHostException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } public static final byte[] hexStringToByteArray(String hexEncodedBinary) { if (hexEncodedBinary.length() % 2 == 0) { char[] sc = hexEncodedBinary.toCharArray(); byte[] ba = new byte[sc.length / 2]; for (int i = 0; i < ba.length; i++) { int nibble0 = Character.digit(sc[i * 2], 16); int nibble1 = Character.digit(sc[i * 2 + 1], 16); if (nibble0 == -1 || nibble1 == -1) { throw new IllegalArgumentException("Hex-encoded binary string contains an invalid hex digit in '" + sc[i * 2] + sc[i * 2 + 1] + "'"); } ba[i] = (byte) ((nibble0 << 4) | (nibble1)); }return ba; } else { throw new IllegalArgumentException("Hex-encoded binary string contains an uneven no. of digits"); } }}

/** * @Package: * @ClassName:TypeConversion * @Description:字节流、字符串、16进制字符串转换 * @author:xk * @date:Jan 8, 2013 5:00:08 PM */ public class TypeConversion { /** * @Title:bytes2HexString * @Description:字节数组转16进制字符串 * @param b *字节数组 * @return 16进制字符串 * @throws */ public static String bytes2HexString(byte[] b) { StringBuffer result = new StringBuffer(); String hex; for (int i = 0; i < b.length; i++) { hex = Integer.toHexString(b[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } result.append(hex.toUpperCase()); } return result.toString(); }/** * @Title:hexString2Bytes * @Description:16进制字符串转字节数组 * @param src *16进制字符串 * @return 字节数组 * @throws */ public static byte[] hexString2Bytes(String src) { int l = src.length() / 2; byte[] ret = new byte[l]; for (int i = 0; i < l; i++) { ret[i] = (byte) Integer .valueOf(src.substring(i * 2, i * 2 + 2), 16).byteValue(); } return ret; }/** * @Title:string2HexString * @Description:字符串转16进制字符串 * @param strPart *字符串 * @return 16进制字符串 * @throws */ public static String string2HexString(String strPart) { StringBuffer hexString = new StringBuffer(); for (int i = 0; i < strPart.length(); i++) { int ch = (int) strPart.charAt(i); String strHex = Integer.toHexString(ch); hexString.append(strHex); } return hexString.toString(); }/** * @Title:hexString2String * @Description:16进制字符串转字符串 * @param src *16进制字符串 * @return 字节数组 * @throws */ public static String hexString2String(String src) { String temp = ""; for (int i = 0; i < src.length() / 2; i++) { temp = temp + (char) Integer.valueOf(src.substring(i * 2, i * 2 + 2), 16).byteValue(); } return temp; }/** * @Title:char2Byte * @Description:字符转成字节数据char-->integer-->byte * @param src * @return * @throws */ public static Byte char2Byte(Character src) { return Integer.valueOf((int)src).byteValue(); }/** * @Title:intToHexString * @Description:10进制数字转成16进制 * @param a 转化数据 * @param len 占用字节数 * @return * @throws */ private static String intToHexString(int a,int len){ len<<=1; String hexString = Integer.toHexString(a); int b = len -hexString.length(); if(b>0){ for(int i=0; i