頁面代碼:
注意，我在頁面在一個新建的文件夾下（TheNameSpace）
[html]
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'uplod.jsp' starting page</title>
</head>
<body>
<h1>file upload</h1>
<s:form action="uploadList.action" enctype="multipart/form-data" theme="simple">
<table cellpadding="0" height="5" >
<tr>
<td>用戶:</td>
<td>
<s:textfield name="username"/>
</td>
</tr>
<tr>
<td>密碼:</td>
<td> <s:password name="passwrod"/></td>
</tr>
<tr >
<td>文件:</td>
<td id="fileID">
<s:fielderror name="file"/>
<s:file name="file" />
<a href="javascript：addFiles()" >添加上傳</a>
</td>
</tr>
<tr>
<td colspan="2">
<s:submit value="提交"/>
<s:reset value="重置"/>
</td>
</tr>
</table>
</s:form>
<script language="javascript">
function addFiles(){
var tdID=document.getElementById("fileID");
var br=document.createElement("br");
var file=document.createElement("input");
var button=document.createElement("input");
file.type="file";
file.name="file";
button.type="button";
button.value="remove";
button.onclick=function(){
tdID.removeChild(br);
tdID.removeChild(file);
tdID.removeChild(button);
}
tdID.appendChild(br);
tdID.appendChild(file);
tdID.appendChild(button);
}
</script>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'uplod.jsp' starting page</title>
</head>
<body>
<h1>file upload</h1>
<s:form action="uploadList.action" enctype="multipart/form-data" theme="simple">
<table cellpadding="0" height="5" >
<tr>
<td>用戶:</td>
<td>
<s:textfield name="username"/>
</td>
</tr>
<tr>
<td>密碼:</td>
<td> <s:password name="passwrod"/></td>
</tr>
<tr >
<td>文件:</td>
<td id="fileID">
<s:fielderror name="file"/>
<s:file name="file" />
<a href="javascript：addFiles()" >添加上傳</a>
</td>
</tr>
<tr>
<td colspan="2">
<s:submit value="提交"/>
<s:reset value="重置"/>
</td>
</tr>
</table>
</s:form>
<script language="javascript">
function addFiles(){
var tdID=document.getElementById("fileID");
var br=document.createElement("br");
var file=document.createElement("input");
var button=document.createElement("input");
file.type="file";
file.name="file";
button.type="button";
button.value="remove";
button.onclick=function(){
tdID.removeChild(br);
tdID.removeChild(file);
tdID.removeChild(button);
}
tdID.appendChild(br);
tdID.appendChild(file);
tdID.appendChild(button);
}
</script>
</body>
</html>
struts.xml配制文件:
[html]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<!-- 常量 上傳文件 最大大小 -->
<constant name="struts.multipart.maxSize" value="20971520"/>
<!-- 包括這個xml -->
<include file="strtus_1.xml"/>
<!-- 後台action -->
<package name="back" extends="struts-default" namespace="/TheNameSpace">
<action name="logins" class="com.rui.struts2.SpaceLogin">
<result name="success">showUser.jsp</result>
</action>
<action name="uploadList" class="com.rui.struts.UploadList">
<result name="success">ok.jsp</result>
<result name="input">/${pageContext.request.contextPath}/TheNameSpace/uploadList.jsp</result>
<!--攔截上上傳文件的 大小、格式 -->
<interceptor-ref name="fileUpload">
<param name="setAllowedTypes">image/pjpeg,image/gif,image/bmp,image/jpeg,image/jpg, text/plain, application/java-archive</param>
<param name="maximumSize">524288</param>
</interceptor-ref>
<interceptor-ref name="basicStack"/>
</action>
<action name="upload" class="com.rui.struts.Upload">
<result name="success">ok.jsp</result>
<result name="input">upload.jsp</result>
</action>
<action name="download" class="com.rui.struts.DownLoald">
<result type="stream">
<!-- 要下載的文件
<param name="contentDisposition">attachment;filename="bbbb.txt"</param>
-->
<!-- 自動尋找方法 -->
<param name="inputName">downloadFile</param>
</result>
</action>
<action name="showlist" class="com.rui.struts.ShowFileList">
<result>download.jsp</result>
</action>
</package>
</struts>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<!-- 常量 上傳文件 最大大小 -->
<constant name="struts.multipart.maxSize" value="20971520"/>
<!-- 包括這個xml -->
<include file="strtus_1.xml"/>
<!-- 後台action -->
<package name="back" extends="struts-default" namespace="/TheNameSpace">
<action name="logins" class="com.rui.struts2.SpaceLogin">
<result name="success">showUser.jsp</result>
</action>
<action name="uploadList" class="com.rui.struts.UploadList">
<result name="success">ok.jsp</result>
<result name="input">/${pageContext.request.contextPath}/TheNameSpace/uploadList.jsp</result>
<!--攔截上上傳文件的 大小、格式 -->
<interceptor-ref name="fileUpload">
<param name="setAllowedTypes">image/pjpeg,image/gif,image/bmp,image/jpeg,image/jpg, text/plain, application/java-archive</param>
<param name="maximumSize">524288</param>
</interceptor-ref>
<interceptor-ref name="basicStack"/>
</action>
<action name="upload" class="com.rui.struts.Upload">
<result name="success">ok.jsp</result>
<result name="input">upload.jsp</result>
</action>
<action name="download" class="com.rui.struts.DownLoald">
<result type="stream">
<!-- 要下載的文件
<param name="contentDisposition">attachment;filename="bbbb.txt"</param>
-->
<!-- 自動尋找方法 -->
<param name="inputName">downloadFile</param>
</result>
</action>
<action name="showlist" class="com.rui.struts.ShowFileList">
<result>download.jsp</result>
</action>
</package>
</struts>
action 上傳類的代碼:
[html]
package com.rui.struts;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UploadList extends ActionSupport {
private String username;
private String passwrod;
private List<File> file;
private List<String> fileFileName;
private List<String> fileContentType;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPasswrod() {
return passwrod;
}
public void setPasswrod(String passwrod) {
this.passwrod = passwrod;
}
public List<File> getFile() {
return file;
}
public void setFile(List<File> file) {
this.file = file;
}
public List<String> getFileFileName() {
return fileFileName;
}
public void setFileFileName(List<String> fileFileName) {
this.fileFileName = fileFileName;
}
public List<String> getFileContentType() {
return fileContentType;
}
public void setFileContentType(List<String> fileContentType) {
this.fileContentType = fileContentType;
}
@Override
public void validate() {
System.out.println("執行了驗證器...");
if(null==file){
addFieldError("file", "請選擇文件!");
}
}
@Override
public String execute() throws Exception {
if(null==file||file.size()<=0){
addFieldError("file", "請上傳符合格式的文件....");
return INPUT;
}
//獲得路麼
String path=ServletActionContext.getRequest().getRealPath("upload");
for(int i=0;i<file.size();i++){
//輸入流
InputStream is=new FileInputStream(file.get(i));
//File 對象
File fileObj=new File(path,fileFileName.get(i));
//輸出流
OutputStream os=new FileOutputStream(fileObj);
byte [] by=new byte[400];
int length=0;
while(-1!=(length=is.read(by))){
os.write(by,0,length);
}
os.close();
is.close();
}
return SUCCESS;
}
}
package com.rui.struts;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UploadList extends ActionSupport {
private String username;
private String passwrod;
private List<File> file;
private List<String> fileFileName;
private List<String> fileContentType;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPasswrod() {
return passwrod;
}
public void setPasswrod(String passwrod) {
this.passwrod = passwrod;
}
public List<File> getFile() {
return file;
}
public void setFile(List<File> file) {
this.file = file;
}
public List<String> getFileFileName() {
return fileFileName;
}
public void setFileFileName(List<String> fileFileName) {
this.fileFileName = fileFileName;
}
public List<String> getFileContentType() {
return fileContentType;
}
public void setFileContentType(List<String> fileContentType) {
this.fileContentType = fileContentType;
}
@Override
public void validate() {
System.out.println("執行了驗證器...");
if(null==file){
addFieldError("file", "請選擇文件!");
}
}
@Override
public String execute() throws Exception {
if(null==file||file.size()<=0){
addFieldError("file", "請上傳符合格式的文件....");
return INPUT;
}
//獲得路麼
String path=ServletActionContext.getRequest().getRealPath("upload");
for(int i=0;i<file.size();i++){
//輸入流
InputStream is=new FileInputStream(file.get(i));
//File 對象
File fileObj=new File(path,fileFileName.get(i));
//輸出流
OutputStream os=new FileOutputStream(fileObj);
byte [] by=new byte[400];
int length=0;
while(-1!=(length=is.read(by))){
os.write(by,0,length);
}
os.close();
is.close();
}
return SUCCESS;
}
}
下載頁面測試 ：
[html]
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'download.jsp' starting page</title>
</head>
<body>
<s:iterator value="listName" var="lname">
<s:property value="lname"/><br/><br/>
<a href="download.action?lname=<s:property value='#lname'/>" >下載文件<a>
<!--
<a href="download.action?lname=DWHJ_062001.jpg">下載文件</a>
-->
</s:iterator>
<br/><br/>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'download.jsp' starting page</title>
</head>
<body>
<s:iterator value="listName" var="lname">
<s:property value="lname"/><br/><br/>
<a href="download.action?lname=<s:property value='#lname'/>" >下載文件<a>
<!--
<a href="download.action?lname=DWHJ_062001.jpg">下載文件</a>
-->
</s:iterator>
<br/><br/>
</body>
</html>
action 下載代碼:
[html]
package com.rui.struts;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class DownLoald extends ActionSupport {
private String lname;
public String getLname() {
return lname;
}
public void setLname(String lname) {
this.lname = lname;
}
private String slname="" ;
public InputStream getDownloadFile(){
HttpServletResponse response=ServletActionContext.getResponse();
try {
slname=new String(lname.getBytes("ISO-8859-1"),"UTF-8");
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
lname=java.net.URLEncoder.encode(slname,"utf-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("ddd"+lname);
response.setHeader("Content-Disposition","attachment;filename="+lname);
return ServletActionContext.getServletContext().
getResourceAsStream("upload/"+slname);
}
//文件名如果有中文的話要進行uri中文轉碼
/*String encodFileNmae="";
try {
encodFileNmae=java.net.URLEncoder.encode(u.getOldname(),"utf-8");
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//設置一個請求頭告訴浏覽器有文件要下載
response.setContentType("text/html;charset=utf-8");
response.setHeader("Content-Disposition","attachment;filename="+encodFileNmae);
*/
@Override
public String execute() throws Exception {
return SUCCESS;
}
}
package com.rui.struts;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class DownLoald extends ActionSupport {
private String lname;
public String getLname() {
return lname;
}
public void setLname(String lname) {
this.lname = lname;
}
private String slname="" ;
public InputStream getDownloadFile(){
HttpServletResponse response=ServletActionContext.getResponse();
try {
slname=new String(lname.getBytes("ISO-8859-1"),"UTF-8");
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
lname=java.net.URLEncoder.encode(slname,"utf-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("ddd"+lname);
response.setHeader("Content-Disposition","attachment;filename="+lname);
return ServletActionContext.getServletContext().
getResourceAsStream("upload/"+slname);
}
//文件名如果有中文的話要進行uri中文轉碼
/*String encodFileNmae="";
try {
encodFileNmae=java.net.URLEncoder.encode(u.getOldname(),"utf-8");
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//設置一個請求頭告訴浏覽器有文件要下載
response.setContentType("text/html;charset=utf-8");
response.setHeader("Content-Disposition","attachment;filename="+encodFileNmae);
*/
@Override
public String execute() throws Exception {
return SUCCESS;
}
}
