java socket 如何发送16进制数据

beck_716 2008-12-18 10:37:23

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beck_716 2008-12-22

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多谢我去试试结贴了

JadoNet 2008-12-18

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public static final String encodeHex(String msg) {
byte[] bytes = null;
try {
bytes = msg.getBytes("GBK");
} catch (java.io.UnsupportedEncodingException e) {
e.printStackTrace();
}
StringBuffer buff = new StringBuffer(bytes.length * 4);
String b;
char a;
int n = 0;
int m = 0;
for (int i = 0; i < bytes.length; i++) {
b = Integer.toHexString(bytes[i]);
if (bytes[i] > 0) {
buff.append("00");
buff.append(b);
n = n + 1;
} else {
a = msg.charAt((i - n) / 2 + n);
m = a;
b = Integer.toHexString(m);
buff.append(b.substring(0, 4));

i = i + 1;
}
}
return buff.toString();
}

JadoNet 2008-12-18

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发送消息之前转码为16进制



	public static final String encodeHex(String msg) {

		byte[] bytes = null;

		try {

			bytes = msg.getBytes("GBK");

		} catch (java.io.UnsupportedEncodingException e) {

			e.printStackTrace();

		}

		StringBuffer buff = new StringBuffer(bytes.length * 4);

		String b;

		char a;

		int n = 0;

		int m = 0;

		for (int i = 0; i < bytes.length; i++) {

			b = Integer.toHexString(bytes[i]);

			if (bytes[i] > 0) {

				buff.append("00");

				buff.append(b);

				n = n + 1;

			} else {

				a = msg.charAt((i - n) / 2 + n);

				m = a;

				b = Integer.toHexString(m);

				buff.append(b.substring(0, 4));



				i = i + 1;

			}

		}

		return buff.toString();

	}