分类： Apache

 apache日志记录的中文，是内码如下：

\xb6\xd4\xb6\xc0\xc1\xa2\xd1\xa7\xd4\xba\xbf\xc9\xb3\xd6\xd0\xf8\xb7\xa2\xd5\xb9\xce\xca\xcc\xe2

编码后中文是：

对独立学院可持续发展问题

完全看不懂是什么意思，如何解析出里面的中文出来呢？

php参考如下代码：

<?php
  $str="\xb6\xd4\xb6\xc0\xc1\xa2\xd1\xa7\xd4\xba\xbf\xc9\xb3\xd6\xd0\xf8\xb7\xa2\xd5\xb9\xce\xca\xcc\xe2";
  eval("\$str = \"$str\";");
  echo iconv('GB2312','UTF-8',$str."\n");
?>

golang参考如下代码：

import (
    "fmt"
    "log"
    "os"
    "code.google.com/p/mahonia"
)
func main() {
    var use_logfile bool
    use_logfile = true
    f, err := os.OpenFile("testlogfile", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
    if err != nil {
        log.Fatalf("error opening file: %v", err)
    }
    defer f.Close()
    if use_logfile {
        log.SetOutput(f)
    }
    s := "\xb6\xd4\xb6\xc0\xc1\xa2\xd1\xa7\xd4\xba\xbf\xc9\xb3\xd6\xd0\xf8\xb7\xa2\xd5\xb9\xce\xca\xcc\xe2"
    enc := mahonia.NewDecoder("UTF-8")
    x := enc.ConvertString(s)
    gbk := mahonia.NewDecoder("gbk")
    n := gbk.ConvertString(s)
    log.Printf("file:", x, n)
    fmt.Println(x, n)
}

java参考如下代码：

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.StandardCharsets;


public class HelloWorld {
    private static String unescapeGBK(final String s) {
        final StringBuilder buf = new StringBuilder();
        int i = 0;
        int len = s.length();
        while (i < len) {
            int ch = s.charAt(i);
            if (ch == '\\') {
                // \xXX\xXX : map to unicode(XXXX)
                int c = (char) ((Character.digit(s.charAt(i + 2), 16) << 4)
                        + Character.digit(s.charAt(i + 3), 16));
                c = c << 8;
                c += (char) ((Character.digit(s.charAt(i + 6), 16) << 4)
                        + Character.digit(s.charAt(i + 7), 16));

                buf.append((char) c);
                i += 7;
            } else {
                buf.append((char) ch);
            }
            i++;
        }
        return buf.toString();
    }

    public static void main(String args[]) throws UnsupportedEncodingException {
        // UTF-8
        String coderStr = "\\x22\\xE5\\x93\\x88\\xE5\\x93\\x88\\x22";
        String str = coderStr.replaceAll("\\\\x", "%");
        str = URLDecoder.decode(str, StandardCharsets.UTF_8.toString());
        System.out.println(str);
        // GBK
        coderStr = "\\xb6\\xd4\\xb6\\xc0\\xc1\\xa2\\xd1\\xa7\\xd4\\xba\\xbf\\xc9\\xb3\\xd6\\xd0\\xf8\\xb7\\xa2\\xd5\\xb9\\xce\\xca\\xcc\\xe2";
        str = getApacheChineseGBK(coderStr);
        System.out.println(str);
    }

    public static String getApacheChineseGBK(String str) throws UnsupportedEncodingException {
        str = str.trim().toLowerCase();
        str = unescapeGBK(str);
        final ByteBuffer byteBuffer = ByteBuffer.allocate(str.length() * Character.SIZE / Byte.SIZE);
        final CharBuffer converter = byteBuffer.asCharBuffer();
        converter.append(CharBuffer.wrap(str));
        str = new String(byteBuffer.array(), "GBK");
        return str;
    }
}

参考链接

• apache日志中的中文，如何转成中文啊？
• Byte Encodings and Strings
• Character and Byte Streams
• Java HexString
• What kind of string uses prefix \x and how to read it
• \x Escape in Java?
• UTF8编码表
• Java 处理 \x 开头的编码