文件下载工具包DownLoadUtils

package cn.amjt.utils;

import sun.misc.BASE64Encoder;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;


public class DownLoadUtils {

public static String getFileName(String agent, String filename) throws UnsupportedEncodingException {
    if (agent.contains("MSIE")) {
        // IE浏览器
        filename = URLEncoder.encode(filename, "utf-8");
        filename = filename.replace("+", " ");
    } else if (agent.contains("Firefox")) {
        // 火狐浏览器
        BASE64Encoder base64Encoder = new BASE64Encoder();
        filename = "=?utf-8?B?" + base64Encoder.encode(filename.getBytes("utf-8")) + "?=";
    } else {
        // 其它浏览器
        filename = URLEncoder.encode(filename, "utf-8");
    }
    return filename;
}
}