下载excel文件名字乱码问题处理

package com.dreamwin.cclib.naga.view;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.dreamwin.statis.StartUp;

/**
?* 输出文件视图
?*
?*
?* @author niuxx
?*
?*/
public class FILEView extends BaseView implements View {

??? /** 需要输出的文件路径 */
??? private String filePath;

??? /**
??? ?* 带模板路径的构造器
??? ?*
??? ?* @param templateName
??? ?*??????????? 模板路径
??? ?*/
??? public FILEView(String filePath) {
??? ??? this.filePath = filePath;
??? }

??? public void render(HttpServletRequest request, HttpServletResponse response)
??? ??? ??? throws ServletException, IOException {
??? ??? super.render(request, response);
??? ??? // response.setCharacterEncoding("UTF-8");
??? ??? String cStr1 = filePath;
??? ??? // cStr1 = URLDecoder.decode(filePath,"UTF-8");
??? ??? String view_name = filePath.substring(filePath.lastIndexOf("/") + 1);
??? ??? String cFilePath;
??? ??? cFilePath = StartUp.deployDirectory + cStr1;
??? ??? File file = new File(cFilePath);
??? ??? if (!file.exists()) {
??? ??? ??? return;
??? ??? }
??? ??? File downFile = new File(cFilePath);
??? ??? response.setContentType("binary/octet-stream;charset=UTF-8");
??? ??? // response.setContentType("application/x-msdownload");
??? ??? // 判断浏览器版本，设置相应编码格式
??? ??? String userAgent = request.getHeader("User-Agent");
??? ??? System.out.println(userAgent);
??? ??? userAgent = userAgent.toLowerCase();
??? ??? if (userAgent.indexOf("msie") != -1) {
??? ??? ??? //response.setHeader("Content-Disposition", "attachment; filename=\""
??? ??? ??? //??? + URLEncoder.encode(view_name, "UTF-8") +"\"");
??? ??? response.setHeader( "Content-Disposition", "attachment;filename="? + new String(view_name.getBytes("gb2312"), "ISO8859-1" ));
??? ??? } else {
??? ??? ??? String fileName = new String(view_name.getBytes("UTF-8"),
??? ??? ??? ??? ??? "ISO8859-1");
??? ??? ??? response.setHeader("Content-Disposition", "attachment; filename=\""
??? ??? ??? ??? ??? + fileName + "\"");
??? ??? }
??? ??? ServletOutputStream out = response.getOutputStream();
??? ??? InputStream is = new FileInputStream(downFile);
??? ??? byte[] bytes = new byte[1024];
??? ??? while (true) {
??? ??? ??? int chunk = is.read(bytes);
??? ??? ??? if (chunk == -1) {
??? ??? ??? ??? break;
??? ??? ??? }
??? ??? ??? out.write(bytes, 0, chunk);
??? ??? }
??? ??? is.close();
??? ??? is = null;
??? ??? out.flush();
??? ??? out.close();

??? }

??? public String getFilePath() {
??? ??? return filePath;
??? }

??? public void setFilePath(String filePath) {
??? ??? this.filePath = filePath;
??? }

}