Struts2自学入门（十）——多文件上传及文件下载

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一、多文件上传

struts.xml

<action name ="uploads" class="com.java1234.action.FileUploadAction"><result name="success">/success.jsp</result><result name="input">/upload.jsp</result></action>

前台页面：

<form action="uploads" method="post" enctype="multipart/form-data">文件1：<input type="file" name="java1234"/><br>文件2：<input type="file" name="java1234"/><br>文件3：<input type="file" name="java1234"/><br><input type ="submit" value="提交"/></form>

Action:

package com.java1234.action;import java.io.File;import java.io.FileInputStream;import java.io.InputStream;import java.io.UnsupportedEncodingException;import com.opensymphony.xwork2.ActionSupport;public class FileDownloadAction extends ActionSupport {/** *  */private static final long serialVersionUID = 1L;private String fileName;public String getFileName() {try {fileName=new String(fileName.getBytes(),"ISO8859-1");} catch (UnsupportedEncodingException e) {// TODO Auto-generated catch blocke.printStackTrace();}return fileName;}public void setFileName(String fileName) {this.fileName = fileName;}public static long getSerialversionuid() {return serialVersionUID;}public InputStream getInputStream() throws Exception{File file = new File("D:/高孔威简历.doc");this.fileName="高孔威简历.doc";return new FileInputStream(file);}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubreturn super.execute();}}

二、文件下载

struts.xml:

<action name ="download" class="com.java1234.action.FileDownloadAction"><result type="stream"><param name="contentDisposition">attachment;filename=${fileName}</param></result></action>

</pre><pre name="code" class="html">

</pre><pre name="code" class="html">

其中:

<result type="stream"><param name="contentDisposition">attachment;filename=${fileName}</param></result>

type="stream" 定义了文件是以数据流的形式传到页面的

<param> 配置了下载的文件名

Action：

package com.java1234.action;import java.io.File;import java.io.FileInputStream;import java.io.InputStream;import java.io.UnsupportedEncodingException;import com.opensymphony.xwork2.ActionSupport;public class FileDownloadAction extends ActionSupport {/** *  */private static final long serialVersionUID = 1L;private String fileName;public String getFileName() {try {fileName=new String(fileName.getBytes(),"ISO8859-1");} catch (UnsupportedEncodingException e) {// TODO Auto-generated catch blocke.printStackTrace();}return fileName;}public void setFileName(String fileName) {this.fileName = fileName;}public static long getSerialversionuid() {return serialVersionUID;}public InputStream getInputStream() throws Exception{File file = new File("D:/高孔威简历.doc");this.fileName="高孔威简历.doc";return new FileInputStream(file);}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubreturn super.execute();}}

前台页面:

<a href="download">文件下载</a>

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