通过JAVA转义WireShark抓取的Ascii码信息流

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本文介绍如何使用Java解析WireShark抓取的ASCII码数据流，将其转换为可读的String类型。通过遍历字符串，识别并处理百分号表示的十六进制字符，最终将转换后的数据以UTF-8编码输出。

分析WireShark抓取的Ascii码信息流,将Ascii码不可分析的内容转译成可识别的String类型

package code; import java.nio.charset.Charset; /** * Title: Decode * Description: * Created: 2011-6-23 下午06:55:07 * * @author ShengYan * @version */ public class Decode { public static void main(String[] args) { String str = "%7B%7Btype%3Abannerwithfeatured%2CsdkVersion%3A10%2CcategoryId%3A91%2Cstart%3A0%2Csize%3A10%2CsortType%3A0%2Cresolution%3A%22480x800%22%2Chardware%3A%22%3A%22%2CclientVersion%3A%220.9.9715%22%7D"; StringBuffer buffer = new StringBuffer(); char[] strArray = str.toCharArray(); char[] temp = new char[2]; for (int i = 0; i < strArray.length; i++) { if (strArray[i] == '%' && i + 1 <= strArray.length && i + 2 <= strArray.length) { temp[0] = strArray[i + 1]; temp[1] = strArray[i + 2]; buffer.append(Decode.change(new String(temp))); i += 2; } else { buffer.append(strArray[i]); } } System.out.println(new String(buffer.toString().getBytes(), Charset .forName("UTF-8"))); } public static char change(String str) { // String str = "7B"; String myStr[] = { "a", "b", "c", "d", "e", "f" }; int result = 0; int n = 1; for (int i = str.length() - 1; i >= 0; i--) { String param = str.substring(i, i + 1); for (int j = 0; j < myStr.length; j++) { if (param.equalsIgnoreCase(myStr[j])) { param = "1" + String.valueOf(j); } } result += Integer.parseInt(param) * n; n *= 16; } char c = (char) result; return c; } }