android URL 中文解析问题

对于一些有带中文的URL如果用URLEncoder.encode(url, "utf-8")来解析的话。前面的冒号，斜杠，也会解析成utf-8编码。但实际上我们只想转化中文字符。因此写了个函数，对于斜杠和冒号等ascoii字符不转化，而只转化飞爱是从你字符。

<span style="white-space:pre"> </span>public static String toURLString(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 {
try {
sb.append(URLEncoder.encode(String.valueOf(c), "utf-8"));
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
return sb.toString();
}
public static void main(String[] args) throws UnsupportedEncodingException {
String url = "http://www.baidu.com/我是中文.jpg";
System.out.println(URLEncoder.encode(url, "utf-8"));
System.out.println(toURLString(url));
}