关于导出任意文件类型

好久没有写点东西了,其实自己已经没有什么好写的,技术那些东西,自己还学到的很少很少,经验是不断积累起来的,还有就是靠自己不断的追求吧.


(其实就是上次写导出文件的一个补充罢了,唯一变的地方其实就是一个设定问题,)也就是response.setContentType("application/x-msdownload;charset=UTF-8");


呵呵,我写的都是一些小东西.不过自己还是尽力将之做得更好.其他不说了,直接来程序吧.

Java代码,这个是一个Servlet,其实无所谓,你在页面上直接location.href也可.里面有不少无用代码,不过还是留下吧,呵呵,有些其实也挺有用的.

import java.io.IOException;   

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

import org.lxh.smart.SmartUpload;   
import org.springframework.context.ApplicationContext;   
import org.springframework.context.support.ClassPathXmlApplicationContext;   

import com.radiantek.m2m.doc.dao.DownloadDocDao;   

public class DownLoadDoc extends HttpServlet {   
    /**  
     *   
     */  
    private static final long serialVersionUID = 1L;   

    public DownLoadDoc() {   
        super();   
    }   

    public void destroy() {   
        super.destroy(); // Just puts "destroy" string in log   
    }   

    public void doGet(HttpServletRequest request, HttpServletResponse response)   
            throws ServletException, IOException {   
        doPost(request, response);   
    }   

    public void doPost(HttpServletRequest request, HttpServletResponse response)   
            throws ServletException, IOException {   

        //重点   
        response.setContentType("application/x-msdownload;charset=UTF-8");   

        // 这里得到的是ID,然后再去找.   
        String FileName = new String(request.getParameter("downName"));   
        // String FilePath = new String(   
        // request.getParameter("FilePath").getBytes("iso8859_1") ) ;   
        String FilePath = request.getSession().getServletContext().getRealPath(   
                "/");   

        String appXmlPath = "/com/radiantek/m2m/config/spring/applicationContext.xml";   
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext(   
                appXmlPath);   
        DownloadDocDao downloadDocDao = (DownloadDocDao) applicationContext   
                .getBean("downloadDocDao");   
        String fileName = downloadDocDao.findByFileName(FileName);   

        // System.out.println(FilePath);   
        // @SuppressWarnings("unused")   
        // DownLoad dl = new DownLoad () ;   

        try {   
            // dl.down(response, FilePath, FileName);   
            // System.out.println(FilePath) ;   
            SmartUpload smart = new SmartUpload();   
            smart.initialize(super.getServletConfig(), request, response);   
            smart.setContentDisposition(null);   

            FilePath = fileName;   
            int filen = FilePath.lastIndexOf("\\");   

            String fName = FilePath.substring(filen+1);   

            // System.out.println(FilePath);   

            //重点,最主要的就是这句话了,   
            smart.downloadFile(FilePath, "application/x-msdownload;charset=UTF-8", java.net.URLEncoder.encode(fName, "UTF-8"));   

        } catch (Exception e) {   

            e.printStackTrace();   
        }   
    }   

    public void init() throws ServletException {   
    }   

}  

JSP页面代码

....这里就是一个传递参数问题,用到了Struts的一些内容,不管用什么都可以,只要传递参数了.   
<input type="button" value=" 下载 " class="button_class"  
                                                onclick="down('<s:property value="FILE_ID"/>');">   

.....   
function down(DOWN_NAME){   

                        location.href = "<%=path%>/servlet/DownLoadDoc?downName=" + DOWN_NAME;   
    }