\xE4\xBD\xA0\xE5\xA5\xBD 解碼
感謝 http://www.bejson.com/convert/ox2str/

p e4 bd a0
P -100 -61 -32
P 11100100 10111101 10100000
J -28 -67 -96
J 10011100 11000011 11100000

p e5 a5 bd
P -101 -37 -61
P 11100101 10100101 10111101
J -27 -91 -67
J 10011011 11011011 11000011

Java:你好[-28, -67, -96, -27, -91, -67]

\xE4\xBD\xA0\xE5\xA5\xBD –> e4bda0e5a5bd –> 你好

與python的關系

python2

普通字符串常量,默認utf-8>>> a = 'aa'>>> type(a[0])<type 'str'>bytes>>> bytes #（str == bytes）為 Ture<type 'str'>bytearray<type 'bytearray'> r'xxx';非轉義的原始字符串 u'xxx';不是僅僅是針對中文, 可以針對任何的字符串，代表是對字符串進行unicode編碼。

python3

普通字符串常量 <class 'str'>,默認unicode>>> a = 'aa'>>> type(a[0])<class 'str'> bytes ：<class 'bytes'> bytearray：<class 'bytearray'> r'xxx';u'xxx';b'xxx';python3.x里默認的str是unicode, bytes是(py2.x)的str, b”“前綴代表的就是bytes python2.x里, b前綴沒什么具體意義， 只是為了兼容python3.x的這種寫法

HBase中取出來了字符串中文不能直接顯示

所有這里實現了解析\x中文 英文字符集 混合編碼，，，

#-*-coding:utf-8-*-# python2 實現def dvstr(r):barr = bytearray();rlen = len(r);i = 0;while i < rlen:if r[i] == '\\' and r[i+1] == 'x':barr.append(r[i+2])barr.append(r[i+3])i+=4;else:hexc = hex(ord(r[i]))barr.append(hexc[2])barr.append(hexc[3])i+=1;hexstr = str(barr);return hexstr.decode('hex')def evstr(s):barr = bytearray();for c in s:size = ord(c);if size >0 and size < 127:barr.append(c)else:hexc = hex(size)barr.append("\\")barr.append("x")barr.append(hexc[2])barr.append(hexc[3])return str(barr)rstr = r'\xe4\xbd\xa0\xe5\xa5\xbd\xe5\x95\x8a121A\xe5\x8f\xb7' sstr = dvstr(rstr) print(sstr) sstr = "你好啊121A號"; rstr = evstr(sstr); print(rstr) # python3 實現def dvstr(r):barr = bytearray();rlen = len(r);i = 0;while i < rlen:if r[i] == '\\' and r[i+1] == 'x':barr.append(ord(r[i+2]))barr.append(ord(r[i+3]))i+=4;else:hexc = hex(ord(r[i]))barr.append(ord(hexc[2]))barr.append(ord(hexc[3]))i+=1;hexstr = str(barr,'utf-8');return bytes.fromhex(hexstr).decode('utf-8')def evstr(s):s = s.encode("UTF-8")barr = bytearray();for c in s:size = c;if size >0 and size < 127:barr.append(c)else:hexc = hex(size)barr.append(92)# \ 92 x 120barr.append(120)barr.append(ord(hexc[2]))barr.append(ord(hexc[3]))return str(barr,'utf-8')sstr = "你A"; rstr = evstr(sstr); print(rstr) rstr = r'\xe4\xbd\xa0A' sstr = dvstr(rstr) print(sstr)

java端解碼

/*** @ 解碼字符串*/public static String drstr(String rstr) {byte[] bs = rstr.getBytes();ByteBuffer buf = ByteBuffer.allocate(bs.length);for (int i = 0; i < bs.length; i++) {if (bs[i] == 92 && bs[i + 1] == 120) {Integer in = Integer.valueOf((char) bs[i + 2] + "" + (char) bs[i + 3], 16);in = in & 0xFF;buf.put(in.byteValue());i += 3;} else {buf.put(bs[i]);}}return new String(buf.array()).trim();}/*** @ 字符串重編碼*/public static String erstr(String str) {final byte[] prefix = "\\x".getBytes();ByteBuffer buf = ByteBuffer.allocate(str.length()*24);//for (int i = 0; i < str.length(); i++) {char ch = str.charAt(i);if (ch >= 0 && ch <= 127) {Integer num = (int) ch;buf.put(num.byteValue());} else {byte[] cbs = String.valueOf(ch).getBytes();for (byte b : cbs) {int v = b & 0xFF;String hv = Integer.toHexString(v).toUpperCase();buf.put(prefix);buf.put(hv.getBytes());}}}return new String(buf.array()).trim();}

總結

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