上传：
jsp:
<body>
<h1>filogin</h1>
<!--如果表单中有文件文件控件，上传的编码必须是multipart/form-data -->
<form action="/strutsFileUpAndDown/login.do" method="post" enctype="multipart/form-data">
name<input id="text" type="text" name="name"/><br/>
file<input id="formFile" type="file" name="formFile"/><br/>
<input type="submit" value="注册"/><br/>
<input type="button" value="1" onclick="test();"/>
</form>
</body>
form:
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.zh.struts.form;
import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile;
/**
* MyEclipse Struts
* Creation date: 11-11-2013
*
* XDoclet definition:
* @struts.form name="userForm"
*/
public class UserForm extends ActionForm {
private String name;
private FormFile formFile;
public String getName() {
return name;
}
public FormFile getFormFile() {
return formFile;
}
public void setName(String name) {
this.name = name;
}
public void setFormFile(FormFile formFile) {
this.formFile = formFile;
}
}
action:
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.zh.struts.action;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.zh.domain.UserName;
import com.zh.service.UserNameService;
import com.zh.struts.form.UserForm;
import com.zh.utils.Tools;
/**
* MyEclipse Struts Creation date: 11-11-2013
*
* XDoclet definition:
*
* @struts.action path="/login" name="userForm" scope="request" validate="true"
*/
public class LoginAction extends Action {
/*
* Generated Methods
*/
/**
* Method execute
*
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
UserForm userForm = (UserForm) form;// TODO Auto-generated method stub
String name = userForm.getName();
String fileName = userForm.getFormFile().getFileName();
String filePath = request.getServletContext().getRealPath("/file");
// 要判断文件是否有 .
if (fileName.indexOf(".") == -1) {
// 这里还要返回一个信息回去。
return mapping.findForward("gotoErr");
}
String newFileName = Tools.getFileName(fileName);
filePath += "\\" + newFileName;
UserName domainUserName = new UserName();
domainUserName.setName(name);
domainUserName.setNewPhoName(newFileName);
domainUserName.setOldPhoName(fileName);
// 调用 UserNameService的函数
UserNameService userNameService = new UserNameService();
if (userNameService.addUser(domainUserName)) {
// 把数据读入文件夹
InputStream inputStream = null;
OutputStream outputStream = null;
try {
inputStream = userForm.getFormFile().getInputStream();
outputStream = new FileOutputStream(filePath);
// 做一个缓冲
int len = 0;
byte[] bytes = new byte[1024];
while ((len = inputStream.read(bytes)) != -1) {
outputStream.write(bytes, 0, len);
}
return mapping.findForward("main");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
outputStream.close();
inputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} else {
return mapping.findForward("gotoErr");
}
return null;
}
}
下载：
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.zh.struts.action;
import java.io.*;
import java.util.LinkedList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.*;
import com.zh.domain.UserName;
import com.zh.service.UserNameService;
/**
* MyEclipse Struts
* Creation date: 11-12-2013
*
* XDoclet definition:
* @struts.action validate="true"
*/
public class GotoDownAction extends Action {
/*
* Generated Methods
*/
/**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
String name=request.getParameter("name");
UserNameService userNameService=new UserNameService();
UserName userName=userNameService.getZhuCeList(name);
//取出数据的路径
String file=request.getServletContext().getRealPath("/file");
file+="\\"+userName.getNewPhoName();
//设置要下载的信息
String fileOldName=userName.getOldPhoName();
//这里是给中文名字的文件编码
try {
fileOldName=java.net.URLEncoder.encode(fileOldName,"utf-8");
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//设置响应的信息
response.setCharacterEncoding("utf-8");
response.setHeader("Content-Disposition", "attachment; filename="+fileOldName);
//传送数据
InputStream inputStream=null;
OutputStream outputStream=null;
try {
response.setContentType("application/x-download");
inputStream=new FileInputStream(file);
outputStream=response.getOutputStream();
byte[] buffer=new byte[1024];
int len=0;
while((len=inputStream.read(buffer))!=-1){
outputStream.write(buffer, 0, len);
}
//注意这里千万不要跳转，会出错 getOutputStream() has already been called for this response
//return mapping.findForward("gotoList");
return null;
} catch (Exception e) {
// TODO Auto-generated catch blocke
//这里是调到 全局Action
return mapping.findForward("gotoErr");
//e.printStackTrace();
}finally{
try {
outputStream.close();
inputStream.close();
} catch (Exception e) {
System.out.println("e");
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}