文件下载中文文件名乱码

文件下载中文文件名乱码（转）

B/S应用中,下载一个附件保存时,中文文件名会乱码,在实际开发中经常遇到,现贴出C#和JAVA的解决方法:

C#:

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

 

其中用到的转换方法:

 1 public   static  String toUtf8String(String s)
 2          {
 3            StringBuilder sb = new StringBuilder();
 4            for (int i=0;i<s.Length;i++)
 5            {
 6                char c = s[i];
 7                if (c >= 0 && c <= 255)
 8                {
 9                    sb.Append(c);
10                }
11                else
12                {
13                    byte[] b;
14                    try
15                    {
16                     b = Encoding.UTF8.GetBytes(c.ToString());
17                    }
18                    catch (Exception ex)
19                    {
20                        b = new byte[0];
21                    }
22                    for (int j = 0; j < b.Length; j++)
23                    {
24                        int k = b[j];
25                        if (k < 0) k += 256;
26                       
27                        sb.Append("%" + Convert.ToString(k,16).ToUpper());
28                    }
29                }
30            }
31            return sb.ToString();
32        }
33
34

 

JAVA:

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

其中用到的转换方法:

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();
    }