20171102_chr_download 文件下载

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文件下载

/20171102_chr_download/src/nuc/sw/action/DownloadAction.java

package nuc.sw.action;import com.opensymphony.xwork2.ActionSupport;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.InputStream;import java.io.UnsupportedEncodingException;public class DownloadAction extends ActionSupport{    private String inputPath;    private String contentType;    private String downFileName;    public String getContentType() {        return contentType;    }    public String getDownFileName() {        return downFileName;    }    public String getInputPath() {        return inputPath;    }    public void setContentType(String contentType) {        this.contentType = contentType;    }    public void setDownFileName(String downFileName) throws UnsupportedEncodingException {        this.downFileName = new String(downFileName.getBytes("iso8859-1"),"utf-8");    }    public void setInputPath(String inputPath) throws UnsupportedEncodingException {        this.inputPath = new String(inputPath.getBytes("iso8859-1"),"utf-8");    }    public InputStream getTargetFile() {        InputStream is = null;        try {            is = new FileInputStream(inputPath);        } catch (FileNotFoundException e) {            e.printStackTrace();        }        return is;    }}

/20171102_chr_download/src/struts.xml

<struts> <package extends="struts-default" namespace="/" name="download">  <action name="download" class="nuc.sw.action.DownloadAction">   <result type="stream">    <param name="contentType">${contentType}</param>    <param name="inputName">targetFile</param>    <param name="contentDisposition">attachment;filename${downFileName}</param>   </result>  </action> </package></struts>

/20171102_chr_download/WebContent/download.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>下载页</title></head><body> <a href="download?inputPath=f:/123.txt&contentType=text/plain&downFileName=123.txt">下载文件</a></body></html>

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