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B/S應用中,下載一個附件保存時,中文文件名會亂碼,在實際開發中經常遇到,現貼出C#和JAVA的解決方法:

C#:

Response.AppendHeader("Content-Disposition", "attachment;filename=" + Tools.toUtf8String(result));

其中用到的轉換方法:

public static string ToUtf8String(String s)
        {
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < s.Length; i++)
            {
                char c = s[i];
                if (c >= 0 && c <= 255)
                {
                    sb.Append(c);
                }
                else
                {
                    byte[] b;
                    try
                    {
                        b = Encoding.UTF8.GetBytes(c.ToString());
                    }
                    catch (Exception ex)
                    {
                        b = new byte[0];
                    }
                    for (int j = 0; j < b.Length; j++)
                    {
                        int k = b[j];
                        if (k < 0) k += 256;

                        sb.Append("%" + Convert.ToString(k, 16).ToUpper());
                    }
                }
            }
            return sb.ToString();
        }

JAVA:

resp.addHeader("Content-Disposition","attachment;filename=" + Tools.toUtf8String(m_entityIndex.m_sName) + ".xls");

其中用到的轉換方法:

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 = new Character(c).toString().getBytes("utf-8");
                    //b = Character.toString(c).getBytes("utf-8");
                } catch (Exception ex) {
                    System.out.println(ex);
                    b = new byte[0];
                }
                for (int j = 0; j < b.length; j++) {
                    int k = b[j];
                    if (k < 0) k += 256;
                    sb.append("%" + Integer.toHexString(k).
                    toUpperCase());
                }
            }
        }
        return sb.toString();
    }