URL中汉字和utf编码间转换问题
1.解决ajax提交中文、URL中文参数传递后的乱码问题的解决办法2.JAVA 中URL链接中文参数乱码的处理方法
3.JAVA URL中带有中文时的处理
今天我们所说的中文，没有在url后面的参数中，如果中文在url中间，那如果我要处理，该怎么办呢？
呵呵，不着急，我们照样可以处理：跟我来，照着做就是了
Java代码如下:package com.gjob.common;public class URLtoUTF8 { //转换为%E4%BD%A0形式 public static String toUtf8String(String s) { StringBuffer sb = new StringBuffer(); for (int i = 0; i < s.length(); i++) { char c = s.charAt(i); if (c >= 0 && c <= 255) { sb.append(c); } else { byte[] b; try { b = String.valueOf(c).getBytes("utf-8"); } catch (Exception ex) { System.out.println(ex); b = new byte; } for (int j = 0; j < b.length; j++) { int k = b; if (k < 0) k += 256; sb.append("%" + Integer.toHexString(k).toUpperCase()); } } } return sb.toString(); } //将%E4%BD%A0转换为汉字 public static String unescape(String s) { StringBuffer sbuf = new StringBuffer(); int l = s.length(); int ch = -1; int b, sumb = 0; for (int i = 0, more = -1; i < l; i++) { /* Get next byte b from URL segment s */ switch (ch = s.charAt(i)) { case '%': ch = s.charAt(++i); int hb = (Character.isDigit((char) ch) ? ch - '0' : 10 + Character.toLowerCase((char) ch) - 'a') & 0xF; ch = s.charAt(++i); int lb = (Character.isDigit((char) ch) ? ch - '0' : 10 + Character.toLowerCase((char) ch) - 'a') & 0xF; b = (hb << 4) | lb; break; case '+': b = ' '; break; default: b = ch; } /* Decode byte b as UTF-8, sumb collects incomplete chars */ if ((b & 0xc0) == 0x80) { // 10xxxxxx (continuation byte) sumb = (sumb << 6) | (b & 0x3f); // Add 6 bits to sumb if (--more == 0) sbuf.append((char) sumb); // Add char to sbuf } else if ((b & 0x80) == 0x00) { // 0xxxxxxx (yields 7 bits) sbuf.append((char) b); // Store in sbuf } else if ((b & 0xe0) == 0xc0) { // 110xxxxx (yields 5 bits) sumb = b & 0x1f; more = 1; // Expect 1 more byte } else if ((b & 0xf0) == 0xe0) { // 1110xxxx (yields 4 bits) sumb = b & 0x0f; more = 2; // Expect 2 more bytes } else if ((b & 0xf8) == 0xf0) { // 11110xxx (yields 3 bits) sumb = b & 0x07; more = 3; // Expect 3 more bytes } else if ((b & 0xfc) == 0xf8) { // 111110xx (yields 2 bits) sumb = b & 0x03; more = 4; // Expect 4 more bytes } else /*if ((b & 0xfe) == 0xfc)*/{ // 1111110x (yields 1 bit) sumb = b & 0x01; more = 5; // Expect 5 more bytes } /* We don't test if the UTF-8 encoding is well-formed */ } return sbuf.toString(); } public static void main(String[] args){ System.out.println(URLtoUTF8.toUtf8String("你")); System.out.println(URLtoUTF8.unescape("%E4%BD%A0%20%E5%A5%BD")); }} ############
运行结果：
%E4%BD%A0
你 好
http://topic.csdn.net/u/20090722/20/5215fa11-3bfe-40b0-995b-2d476974dff3.html
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