1、下载登录页面download.jsp
1: <%@ page language="java" contentType="text/html; charset=UTF-8"
2: pageEncoding="UTF-8"%>
3: <%@ taglib prefix="s" uri="/struts-tags" %>
4: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
5: <html>
6: <head>
7: <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
8: <title>下载页面</title>
9: </head>
10: <body>
11: 下载前的登录页面
12: <s:form action="download1">
13: <s:textfield name="user" label="用户名"/>
14: <s:textfield name="pass" label="密 码"/>
15: <s:submit value="下载"/>
16: </s:form>
17: </body>
18: </html>
2、FileDownAction.java
1: package cc.openhome;
2:
3: import java.io.File;
4: import java.io.FileInputStream;
5: import java.io.InputStream;
6: import com.opensymphony.xwork2.Action;
7: import com.opensymphony.xwork2.ActionSupport;
8: public class FileDownAction extends ActionSupport implements Action {
9: private InputStream fileInputStream;
10: private String fileName;
11: private String user;
12: private String pass;
13:
14: public String getUser() {
15: return user;
16: }
17: public void setUser(String user) {
18: this.user = user;
19: }
20: public String getPass() {
21: return pass;
22: }
23: public void setPass(String pass) {
24: this.pass = pass;
25: }
26: public InputStream getFileInputStream() {
27: return fileInputStream;
28: }
29: public void setFileInputStream(InputStream fileInputStream) {
30: this.fileInputStream = fileInputStream;
31: }
32: public String getFileName() {
33: return fileName;
34: }
35: public void setFileName(String fileName) {
36: this.fileName = fileName;
37: }
38: @Override
39: public String execute() throws Exception {
40: // TODO Auto-generated method stub
41: if(getUser().equals("nihao") && getPass().equals("nihao")){
42: File file = new File("E:/java web/workspace/struts-fileupload/WebContent/images/struts-gif.rar");
43: fileName=file.getName();
44: fileInputStream=new FileInputStream(file);
45: return SUCCESS;
46: }else{
47: return ERROR;
48: }
49: }
50: public void validate(){
51: if(getUser()==null || getUser().trim().equals("")){
52: addFieldError("user", getText("user.required"));
53: }
54: if(getPass()==null || getPass().trim().equals("")){
55: addFieldError("pass", getText("pass.required"));
56: }
57: }
58:
59: }
60:
3、struts.xml
1: <?xml version="1.0" encoding="UTF-8" ?>
2: <!DOCTYPE struts PUBLIC
3: "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
4: "http://struts.apache.org/dtds/struts-2.3.dtd">
5:
6: <struts>
7: <constant name="struts.custom.i18n.resources" value="message"/>
8: <package name="struts2" extends="struts-default">
9: <action name="download1" class="cc.openhome.FileDownAction">
10: <param name="inputPath">imagesstruts-gif.rar</param>
11: <result name="success" type="stream">
12: <param name="contentType">application/octet-stream</param>
13: <param name="inputName">fileInputStream</param>
14: <param name="contentDisposition">acttachment;filename="${ fileName}"</param>
15: <param name="bufferSize">4096</param>
16: </result>
17: <result name="input">/input.jsp</result>
18: </action>
19: </package>
20: </struts>
4、运行结果
