easyUI的界面。注意下載時將中文的文件名經過兩次編碼傳遞到action，ie下不用先轉回，再經過轉碼纔到xml文件，直接就可以映射到xml文件。
jsp：
<body class="easyui-layout">
<s:form id="form" enctype="multipart/form-data">
<div data-options="region:'center',border:false" style="padding:5px;">
<table id="tablegrid"></table>
</div>
<div data-options="region:'south',border:false" style="height:100px;padding:5px;">
<input type = "file" name="attachment" id="attachment" style="width:200px;" /><br />
<input class="defBtn" type="button" value="上傳" onclick="uploadFile()" />
<input class="defBtn" type="button" value="取消" onclick="cancal()" />
</div>
</s:form>
</body>
js：
var grid = null;
var cols = [
{title:'主鍵',field:'id',checkbox:true},
{title:'文件名',field:'fileName',align:'center',formatter:downloadFormatter},
{title:'大小（KB）',field:'size',align:'center'},
];
$(function() {
grid = xGrid({
id: 'tablegrid',
title : '文件列表',
url : base + '/in/files/filesList.action',
idField : 'id',
pagination : true,
singleSelect:false,
columns : [cols],
});
});
//上傳文件
function uploadFile(){
var attachment = $('#attachment').val();
var ext= attachment.substring(attachment.lastIndexOf(".")+1);
if(!isNotNull(attachment)) {
showMsg('請先選擇文件！');
return;
}if(fileFormat!=ext) {
showMsg('上傳文件後綴名不正確！');
return;
}if (!isNotNull(tableName)) {
showMsg('請先輸入表名！');
return;
}
$('#form').form('submit', {
url : base + '/in/files/uploadFiles.action?files.size='+fileSize,
success : function(result) {
var result = eval('(' + result + ')');
if (result.success) {
parent.$.messager.alert('提示', result.msg);
} else {
parent.$.messager.alert('提示', result.msg);
}
searchThis();
//避免上傳後立即點擊下載出現只能下載剛上傳的文件
window.location.reload();
}
});
}
//下載文件
function downloadFormatter(val,row,ind){
var html = new Array();
html.push('<a href="javascript:download(\''+row.id+'\',\''+row.fileName+'\')">');
html.push(val);
html.push('</a>');
return html.join('');
}
function download(id,fileName){
$.messager.confirm("提示","確定下載該文件",function(y){
if (y) {
var url = base + '/in/files/getDownloadFiles.action?filesVO.id=' +id+'&attachmentFileName='+encodeURI(encodeURI(fileName));
$('#form').attr('action', url);
$('#form').submit();
}
});
}
/* 多文件上傳
*function addFile(){
var file = document.createElement("input");
file.type="file";
file.name="attachment";
file.id="attachment";
document.getElementById("fileList").appendChild(file);
document.getElementById("fileList").appendChild(document.createElement("br"));
} */
//刷新頁面
function searchThis() {
grid.datagrid('load', null);
grid.datagrid('clearSelections');
}
function cancal(){
mainWindow.searchThis();
mainDialog.window('close');
}
action：
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.struts2.ServletActionContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import com.pk.core.action.GenericAction;
import com.pk.core.entity.Json;
import com.pk.util.DateConverter;
import com.pk.util.PropertiesUtil;
import com.platform.common.entity.Files;
import com.platform.common.service.FilesService;
import com.platform.common.vo.FilesVO;
import com.platform.util.PlatformConstant;
import com.privilege.user.entity.User;
@Controller
public class FilesAction extends GenericAction {
@Autowired
private FilesService filesService;
private FilesVO filesVO = new FilesVO();
private Files files = new Files();
private InputStream inputStream;
private String ids;
private String aliasName;//文件別名
private String fileName;//文件名(非UUID，解碼後)
Json resultJson = new Json();
public String toFilesManage() {
return "toFilesManage";
}
public void filesList(){
List<FilesVO> filesList = new ArrayList<FilesVO>();
filesList = filesService.filesList(filesVO);
super.writeJson(filesList);
}
public void deleteFile(){
if(StringUtils.isNotBlank(ids)) {
String[] idArray = ids.split(",");
for(String id: idArray){
files = filesService.getFile(id);
File file = new File(this.getSaveFilesPath()+"/"+files.getAlias());
if(file.exists() && file.isFile()){
file.delete();
}
filesService.deleteFile(id);
}
}
}
//return the path of Files
public String getSaveFilesPath() {
String formateDate = null;
if(null!=files.getCreateTime()) {//downLoad and delete File
Date createTime=files.getCreateTime();
formateDate = DateConverter.dateToString(createTime, DateConverter.FORMAT_SEVEN);
}else{//upLoad File
formateDate = DateConverter.dateToString(new Date(), DateConverter.FORMAT_SEVEN);
}
String tableName = files.getTable();
PropertiesUtil pu = new PropertiesUtil(PlatformConstant.PROPERTIES_PATH);
String saveFilesUrl = pu.getValue("fileUploadPath")+"/"+tableName+"/"+formateDate;
return saveFilesUrl;
}
//upLoad File
public void uploadFiles(){
//後綴名
/*attachmentContentType=attachmentFileName.substring(attachmentFileName.lastIndexOf(".")+1);
if(!attachmentContentType.equalsIgnoreCase(fileFormat)){
resultJson.setSuccess(false);
resultJson.setMsg("上傳文件格式不正確");
writeJson(resultJson);
return;
}*/
//真實文件大小
double size = attachment.length()/1024d;
Double fileSize = files.getSize();
if (null!=fileSize) {
if(size>fileSize){
resultJson.setSuccess(false);
resultJson.setMsg("上傳文件過大");
writeJson(resultJson);
return;
}
}
//查詢數據庫表並比較
List<FilesVO> allTables = filesService.findAllTables();
boolean flag = false;
for(FilesVO tableNames : allTables) {
if(files.getTable().equalsIgnoreCase(tableNames.getTableName())){
flag = true;
break;
}
}
if (!flag) {
resultJson.setSuccess(false);
resultJson.setMsg("不存在 "+filesVO.getTable()+"表");
writeJson(resultJson);
}else{
// 保存的文件別名，使用UUID+後綴進行保存
aliasName = UUID.randomUUID().toString()+ getExt(attachmentFileName);
//獲取保存文件的路徑
String target=getSaveFilesPath()+"\\"+aliasName;
File targetFile=new File(target);
try {
//複製文件內容
FileUtils.copyFile(attachment, targetFile);
} catch (IOException e) {
e.printStackTrace();
}
this.saveFiles(); //保存文件
resultJson.setSuccess(true);
resultJson.setMsg("上傳成功！");
writeJson(resultJson);
}
}
private String getExt(String attachmentFileName) {
return attachmentFileName.substring(attachmentFileName.lastIndexOf("."));
}
//保存文件
public void saveFiles(){
String formateDate =DateConverter.dateToString(new Date(), DateConverter.FORMAT_SEVEN);
User loginUser = (User) super.getSession().getAttribute(PlatformConstant.USER);
String url="/"+files.getTable()+"/"+formateDate+"/"+attachmentFileName;
files.setSize(attachment.length()/1024d);
files.setCreator(loginUser.getUsername());
files.setCreateTime(new Date());
files.setUrl(url);
files.setTable(files.getTable());
files.setFileName(attachmentFileName);
files.setAlias(aliasName);
files.setRecordId(files.getRecordId());
filesService.saveFiles(files);
}
//downLoad Files
public String getDownloadFiles() throws IOException {
String id = filesVO.getId();
if (StringUtils.isNotBlank(id)) {
files = filesService.findFiles(id);
}
this.inputStream = new FileInputStream(getSaveFilesPath()+"/"+files.getAlias());
return "downloadSuccess";
}
public InputStream getInputStream() throws UnsupportedEncodingException {
String agent = ServletActionContext.getRequest().getHeader("USER-AGENT");//獲取用戶瀏覽器
//防止下載文件名亂碼
if (null != agent) {
if (-1 != agent.indexOf("Firefox") || -1 != agent.indexOf("Chrome")) {// Firefox + Chrome
fileName = URLDecoder.decode(attachmentFileName, "UTF-8");
fileName = new String(fileName.getBytes("UTF-8"), "ISO8859-1");
}else{//IE
ServletActionContext.getResponse().setHeader("Content-Disposition","attachment;fileName="+attachmentFileName);
}
}
return inputStream;
}
public void setInputStream(InputStream inputStream) {
this.inputStream = inputStream;
}
public FilesService getFilesService() {
return filesService;
}
public void setFilesService(FilesService filesService) {
this.filesService = filesService;
}
public FilesVO getFilesVO() {
return filesVO;
}
public void setFilesVO(FilesVO filesVO) {
this.filesVO = filesVO;
}
public String getIds() {
return ids;
}
public void setIds(String ids) {
this.ids = ids;
}
public File getAttachment() {
return attachment;
}
public void setAttachment(File attachment) {
this.attachment = attachment;
}
public Files getFiles() {
return files;
}
public void setFiles(Files files) {
this.files = files;
}
public String getAliasName() {
return aliasName;
}
public void setAliasName(String aliasName) {
this.aliasName = aliasName;
}
public String getFileName() throws Exception{
return fileName;
}
public void setFileName(String fileName) throws Exception{
this.fileName = fileName;
}
}
xml：
<action name="*" class="com.platform.common.action.FilesAction" method="{1}">
<result name="toFilesManage">/platform/in/common/filesManage.jsp</result>
<!-- 下載文件 -->
<result name ="downloadSuccess" type="stream">
<param name="inputName">inputStream</param>
<param name="contentDisposition">attachment;fileName="${fileName}"</param>
</result>
<!-- 上傳文件 -->
<interceptor-ref name="fileUpload">
<param name="maximumSize">20000000</param>
</interceptor-ref>
<interceptor-ref name="defaultStack" />
</action>