http://localhost:8080/AAA/download/20090917092500953_我是中国人.txt
这个链接打开时出错,信息如下:type ステータスレポート
メッセージ /AAA/download/20090917092500953_%E6%88%91%E6%98%AF%E4%B8%AD%E5%9B%BD%E4%BA%BA.txt
説明 The requested resource (/AAA/download/20090917092500953_%E6%88%91%E6%98%AF%E4%B8%AD%E5%9B%BD%E4%BA%BA.txt) is not available.哪位大哥帮小弟解决下?
谢谢啦!
这个链接打开时出错,信息如下:type ステータスレポート
メッセージ /AAA/download/20090917092500953_%E6%88%91%E6%98%AF%E4%B8%AD%E5%9B%BD%E4%BA%BA.txt
説明 The requested resource (/AAA/download/20090917092500953_%E6%88%91%E6%98%AF%E4%B8%AD%E5%9B%BD%E4%BA%BA.txt) is not available.哪位大哥帮小弟解决下?
谢谢啦!
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import java.io.*;
/**
*
* @author Todd.Zhang
*/
public class URLEncoder {
private static final int MAX_BYTES_PER_CHAR = 10; // rather arbitrary limit, but safe for now
private static boolean[] dontNeedEncoding;
private static String defaultEncName = "";
private static final int caseDiff = ('a' - 'A');
static
{
dontNeedEncoding = new boolean[256];
for (int i='a'; i<='z'; i++)
{
dontNeedEncoding[i] = true;
}
for (int i='A'; i<='Z'; i++)
{
dontNeedEncoding[i] = true;
}
for (int i='0'; i<='9'; i++)
{
dontNeedEncoding[i] = true;
}
dontNeedEncoding[':'] = true;
dontNeedEncoding['/'] = true;
dontNeedEncoding[' '] = true;
dontNeedEncoding['-'] = true;
dontNeedEncoding['_'] = true;
dontNeedEncoding['.'] = true;
dontNeedEncoding['*'] = true;
//defaultEncName = System.getProperty("microedition.encoding");
if(defaultEncName == null || defaultEncName.trim().length() == 0){
defaultEncName = "UTF-8";
}
}
public static final int MIN_RADIX = 2;
public static final int MAX_RADIX = 36;
private URLEncoder() {}
public static String encode(String s)
{
String str = null;
str = encode(s, defaultEncName);
return str;
}
public static String encode(String s,String enc)
{
boolean needToChange = false;
boolean wroteUnencodedChar = false;
StringBuffer out = new StringBuffer(s.length());
ByteArrayOutputStream buf = new ByteArrayOutputStream(MAX_BYTES_PER_CHAR);
OutputStreamWriter writer = null;
try
{
writer = new OutputStreamWriter(buf, enc);
}
catch (UnsupportedEncodingException ex)
{
try
{
writer = new OutputStreamWriter(buf,defaultEncName);
}
catch (UnsupportedEncodingException e)
{
//never reach
}
}
for (int i = 0; i < s.length(); i++)
{
int c = (int) s.charAt(i);
if (c<256 && dontNeedEncoding[c])
{
out.append((char) (c==' ' ? '+' : c));
wroteUnencodedChar = true;
}
else
{
// convert to external encoding before hex conversion
try
{
if (wroteUnencodedChar)
{ // Fix for 4407610
writer = new OutputStreamWriter(buf,enc);
wroteUnencodedChar = false;
}
if(writer != null)
writer.write(c);
/*
* If this character represents the start of a Unicode
* surrogate pair, then pass in two characters. It's not
* clear what should be done if a bytes reserved in the
* surrogate pairs range occurs outside of a legal surrogate
* pair. For now, just treat it as if it were any other
* character.
*/
if (c >= 0xD800 && c <= 0xDBFF)
{
if ((i + 1) < s.length())
{
int d = (int) s.charAt(i + 1);
if (d >= 0xDC00 && d <= 0xDFFF)
{
writer.write(d);
i++;
}
}
}
writer.flush();
}
catch (IOException e)
{
buf.reset();
continue;
}
byte[] ba = buf.toByteArray();
for (int j = 0; j < ba.length; j++)
{
out.append('%');
char ch = toHex((ba[j] >> 4) & 0xF,16);
// converting to use uppercase letter as part of
// the hex value if ch is a letter.
if (isLetter(ch))
{
ch -= caseDiff;
}
out.append(ch);
ch = toHex(ba[j] & 0xF,16);
if (isLetter(ch))
{
ch -= caseDiff;
}
out.append(ch);
}
buf.reset();
needToChange = true;
}
}
return (needToChange? out.toString() : s);
}
private static char toHex(int digit,int radix)
{
if ((digit >= radix) || (digit < 0))
{
return '\0';
}
if ((radix < MIN_RADIX) || (radix > MAX_RADIX))
{
return '\0';
}
if (digit < 10)
{
return (char)('0' + digit);
}
return (char)('a' - 10 + digit);
}
private static boolean isLetter(char c)
{
if( (c >= 'a' && c <= 'z') || (c >='A' && c <= 'Z'))
return true;
return false;
}
}
你调用URLEncoder.encode(url);后再访问
2、如果没有办法改变,要求只能用中文名,那么就要设置编码方式
后台获得文件名后,对其编码:String downloadFileName = java.net.URLEncoder.encode(fileName,"gb2312");
在页面中:<a href="http://...../<%=downloadFileName%>"></a>
对中文编码比较简单直接的方法:找到C:\Program Files\Java\jdk1.5.0_10\bin\native2ascii.exe
然后cmd,将native2ascii.exe拖入cmd打开的dos窗口,回车。
写你需要编码的中文如:
C:\Documents and Settings\Administrator>"C:\Program Files\Java\jdk1.5.0_10\bin\n
ative2ascii.exe"
我是中国人
\u6211\u662f\u4e2d\u56fd\u4eba
用于方便快捷的中文乱码处理