Java操作Jxl实现上传文本文件实现转PDF格式在线预览。
本文实现背景Web项目：前台用的框架是Easyui+Bootstrap结合使用，需要引入相应的Js、Css文件。页面：Jsp、拦截请求：Servlet、逻辑处理：ClassBean、数据库：SQLserver。
注意：Bean中操作SQL语句进行处理是公司内部方法，可替换为其它方法自行扩展！主要看代码逻辑业务处理！
首先我们看见的是Easyui中的datagrid中的数网格。
接下来进行创建一个xsl文本格式数据文件
我们任意点击条数据，点击附件这是弹出一个窗口让我们进行附件上传，只能上传文本数据格式！
点击保存附件上传成功！该附件信息文件名称及文件路径以保存在数据库中，查询该人员的相关信息及附件信息，此时此刻可查看附件信息
点击查看及可把xls数据格式在线转码为PDF格式数据进行展示！(注：在线转码与预览需要一些本地配置，请关注我下一篇博客！)
jsp代码：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%@page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="com.pantech.base.common.tools.MyTools"%>
<%@ page import="com.pantech.base.common.tools.PublicTools"%>
<%@ page import="com.pantech.src.develop.Logs.*"%>
<%@ page import="com.pantech.base.common.tools.*"%>
<%@ page import="com.pantech.src.develop.store.user.*"%>
<%@ page import="com.pantech.src.develop.manage.workremind.WorkRemind"%>
<%@ page import="java.util.Vector"%>
<%@ page import="java.util.*"%>
<%@ page import="java.text.*"%>
<%@ page import="com.pantech.base.common.db.DBSource"%> <html>
<head> <title>导入文件转为FDF格式在线预览</title>
<link rel="stylesheet" type="text/css" href="<%=request.getContextPath()%>/css/themes/icon.css">
<link rel="stylesheet" type="text/css" href="<%=request.getContextPath()%>/css/themes/default/easyui.css">
<link charset="utf-8" rel="stylesheet" href="<%=request.getContextPath()%>/css/bootstrap.css"/>
<link charset="utf-8" rel="stylesheet" href="<%=request.getContextPath()%>/css/naber.css"/>
<link charset="utf-8" rel="stylesheet" href="<%=request.getContextPath()%>/css/font-awesome/css/font-awesome.css">
<link charset="utf-8" rel="stylesheet" href="<%=request.getContextPath()%>/css/SMS-index.css"/>
<link charset="utf-8" rel="stylesheet" href="<%=request.getContextPath()%>/css/listPage.css"/>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/JQueryUI/jquery.min.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/JQueryUI/jquery.easyui.min.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/JQueryUI/locale/easyui-lang-zh_CN.js"></script>
<script charset="utf-8" src="<%=request.getContextPath()%>/script/bootstrap.min.js"></script>
<script charset="utf-8" src="<%=request.getContextPath()%>/script/layer/layer.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/common/clientScript.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/common/publicScript.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/ajaxfileupload.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/common/publicScript.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/FlexPaper/flexpaper_handlers.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/script/FlexPaper/flexpaper.js"></script>
<style type="text/css">
#divPageMask2{background-color:#D2E0F2; filter:alpha(opacity=90);left:0px;top:0px;z-index:100;}
#divPageMask3{background-color:#D2E0F2; filter:alpha(opacity=90);left:0px;top:0px;z-index:100;}
#win td{height:30px;}
</style>
</head>
<body class="easyui-layout" >
<!-- 页面学生列表区 -->
<div id="tableDIV" class="list-table table-responsive" style="height:600px;width: 900px">
<table id="list" width="100%"></table>
</div> <!-- 上传附件弹窗 -->
<div id=jxdialog style="overflow: hidden;">
<div id="north" region="north" title="教学管理">
<table id="tb">
<tr>
<td><a href="#" id="newfjsc" class="easyui-linkbutton"plain="true" iconcls="icon-new" onClick="doToolbar(this.id);"title="">上传附件</a></td>
<td><a href="#" id="delfjxx" class="easyui-linkbutton"plain="true" iconcls="icon-cancel" onClick="doToolbar(this.id);"title="">删除</a></td>
</tr>
</table>
</div>
<div region="center">
<table id="jxbzList"></table>
</div>
</div> <!-- 附件上传 -->
<div id="jxbzInfo" style="overflow:hidden;">
<form id="form1" method='post'>
<table style="width:100%;" class="tablestyle">
<tr>
<td class="titlestyle">附件上传</td>
<td>
<input type="file" name="file1" id="icJXBZ_UPLOAD" style="width:280px;" />
</td>
</tr>
</table>
<div style="display: none;">
<input type="hidden" id="active" name="active"/>
</div>
</form>
</div> <!-- 遮罩层 -->
<div id="ic_flexPaperZhezhao" style="position:absolute; z-index:99999; width:100%; height:100%; background-image:url('<%=request.getContextPath()%>/images/course/pic5.png'); display:none; text-align:center;" onclick="$('#ic_flexPaperDiv').hide();">
<font color="white" style="position:relative; top:45%; left:0;">文件预览加载中<br/><img src="<%=request.getContextPath()%>/images/course/loading.gif" /></font>
</div> <!-- 文件预览 flexpaper -->
<div id="ic_flexPaperDiv" style="position:absolute; z-index:99999; width:100%; height:100%; background-image:url('<%=request.getContextPath()%>/images/course/pic5.png'); display:none;" onclick="$('#ic_flexPaperDiv').hide();">
<div id="documentViewer" class="flexpaper_viewer" style="width:90%;height:90%; position:relative; top:5%; left:5%;">
</div>
</div> </body>
<script type="text/javascript">
var XSBH='';
var uploadPath='<%=MyTools.getProp(request, "Base.JYWDStandardUpLoadPath")%>';//上传路径
var filePreview='<%=MyTools.getProp(request, "Base.JYWDStandardFilePreview")%>';//预览路径
var iUSERCODE="<%=MyTools.getSessionUserCode(request)%>"; //获得用户登录code $(document).ready(function(){
loadGrid();
loadDialog();
}); //dialog窗口
function loadDialog() {
//上传附件弹窗
$('#jxbzInfo').dialog({
width: 480,//宽度设置
height: 120,//高度设置
modal:true,
closed: true,
cache: false,
draggable:false,//是否可移动dialog框设置
toolbar:[{
//保存编辑
text:'保存',
iconCls:'icon-save',
handler:function(){
//传入save值进入doToolbar方法，用于保存
doToolbar('savefjxx');
}
}],
//打开事件
onOpen:function(data){},
//读取事件
onLoad:function(data){},
//关闭事件
onClose:function(data){
//上传附件表单元素数据
var file = $('#icJXBZ_UPLOAD');
file.after(file.clone().val(""));
file.remove();
jxloadGrid(Maindata[0].学生编号); //调用读取附件页面信息 }
}); //上传教学附件
$('#jxdialog').dialog({
width: 800,//宽度设置
title:'教学管理计划',
height: 480,//高度设置
modal:true,
closed: true,
cache: false,
draggable:false,//是否可移动dialog框设置
//打开事件
onOpen:function(data){},
//读取事件
onLoad:function(data){},
//关闭事件
onClose:function(data){
iKeyCode=XSBH;
}
}); } //上传附件信息
function jxloadGrid(zy) {
XSBH=zy;
loadGridfjsc(zy);
$('#jxdialog').dialog('open');
} //工具按钮
function doToolbar(iToolbar){
//判断获取参数为new，执行新建附件操作
if(iToolbar == 'newfjsc'){
$('#jxbzInfo').dialog('setTitle', '新建教学附件信息');
$('#jxbzInfo').dialog('open'); //打开dialog
} //执行保存附件信息操作
if(iToolbar == 'savefjxx'){
if($('#icJXBZ_UPLOAD').val()==''){
alertMsg("请选择上传文件");
return;
} var fileTypePhoto='<%=MyTools.getProp(request, "[FileTypePhoto]")%>'; //图片
var fileTypeTxt='<%=MyTools.getProp(request, "[FileTypeTxt]")%>'; //文本
var fileSuffix=$("#icJXBZ_UPLOAD").val().split('.')[$("#icJXBZ_UPLOAD").val().split('.').length-1]; //获取文件后缀名 if (fileTypeTxt.indexOf(fileSuffix)!=-1) {
checkFile();//新建
}else {
alertMsg("只能上传文本格式的文件");
return;
} } //删除附件信息操作
if(iToolbar=="delfjxx"){
if(iKeyCode==""){
alertMsg("请先选择一行数据");
return;
}
ConfirmMsg("删除后，将无法恢复，是否继续？","delRec();","");
} } //删除附件信息方法
function delRec(){
$.ajax({
type:'post',
url:"<%=request.getContextPath()%>/ImportTextBean_Servlet",
data:"active=deleteRow&FJXXBH=" + iKeyCode,
dataType:'json',
success:function(datas){
if(datas[0].msg=="删除成功"){
showMsg(datas[0].msg);
jxloadGrid(XSBH); //调用读取附件页面信息
} }
});
} //加载datagrid主页面信息
function loadGrid(){
$('#list').datagrid({
url: '<%=request.getContextPath()%>/ImportTextBean_Servlet',
queryParams: {"active":"loadElective"},
loadMsg : "信息加载中请稍后!",//载入时信息
nowrap: false,//当数据长度超出列宽时将会自动截取
showFooter:true,
rownumbers: true,
animate:true,
striped : true,//隔行变色
pageSize : 10,//每页记录数
singleSelect : true,//单选模式
pageNumber : 20,//当前页码
pagination:true,
fit:true,
fitColumns: true,//设置边距
columns:[[
{field:'姓名',title:'姓名',width:fillsize(0.2)},
{field:'所在区域',title:'所在区域',width:fillsize(0.2)},
{field:'col3',title:'附件',width:fillsize(0.1),
formatter:function(value,rec,index){
return "<input type='button' style='cursor:pointer;' value='[附件]' onclick='jxloadGrid(\""+rec.编号+"\");'> ";
}}
]],
onClickRow:function(rowIndex, rowData){
row=rowData;
},
onLoadSuccess: function(data){
iKeyCode='';
},
onLoadError:function(none){ }
}); } /* 学生个人附件信息列表数据 */
function loadGridfjsc(zy){
$('#jxbzList').datagrid({
url:'<%=request.getContextPath()%>/ImportTextBean_Servlet',
queryParams:{"active":"queryList","XSBH" : zy},
loadMsg : "信息加载中请稍侯!", //载入时信息
title:'教学计划信息列表',
width : '785px', //宽度
height : '500px',
nowrap : false, //截取当数据长度超出列宽时会自动截取
fitColumns : true, //自适应列宽防止出现水平滚动
striped : true, //隔行变色
pagination : true, //分页
showFooter:true, //显示页脚信息
pageSize : 10, //每页记录数
singleSelect : true, //单选模式 这里是指只能选一行不能多选
pageNumber :1, //当前页码
rownumbers:true,
columns:[[
//field为读取数据的数据名，title为显示的数据名，width宽度设置，align数字在表格中显示的位置
{field:'编号',title:'教学计划编号',hidden:true},
{field:'文件名',title:'文件名称',width:fillsize(0.12),align:'center'},
{field:'创建人',title:'上传人',width:fillsize(0.15),align:'center'},
{field:'创建时间',title:'上传时间',width:fillsize(0.15),align:'center'},
{field:'col3',title:'附件',width:fillsize(0.15),align:'center',
formatter:function(value,rec,index){
return "<input type='button' style='cursor:pointer;' value='[查看]' onclick='decideFile(\""+rec.文件路径+"\",\""+rec.预览路径+"\",\""+index+"\");'>"
}}
]],
//单击某行时触发
onClickRow:function(rowIndex,rowData){
//主键赋值
iKeyCode = rowData.编号;
curRowData = rowData;
},
//加载成功后触发
onLoadSuccess: function(data){
iKeyCode = '';
curRowData = '';
Maindata=data;
} });
}; /**检查上传文件*/
function checkFile(){
var filePath = $("#icJXBZ_UPLOAD").val(); var pattern = /^[^\s]*$/;
var fname = filePath.substring(filePath.lastIndexOf("\\")+1, filePath.length);
if(!pattern.test(fname)){//匹配文件名
alertMsg('文件名中不能有空格!',0);
return;
} var arr = filePath.split('\\');
var fileName = arr[arr.length-1];
if(filePath!=""){
uploadFile('icJXBZ_UPLOAD');
}
} //上传附件请求方法
function uploadFile(fileId){
$.ajaxFileUpload({
url:'<%=request.getContextPath()%>/ImportTextBean_Servlet?active=uploadify&XSBH='+XSBH, //服务器地址
secureuri:false,
/*type:"post", */
fileElementId:fileId,//文件选择框的id属性
dataType: 'text',//服务器返回的格式，可以是json
success: function (data){//相当于java中try语句块的用法
if(data == '上传文件成功'){
//提示信息
showMsg('上传文件成功');
loadGridfjsc(XSBH);
$('#jxbzInfo').dialog('close');
}else{
$('#jxbzInfo').dialog('close');
loadGridfjsc(JXSKJHMX_BH);
alertMsg(data);
} }
});
} //预览的是图片还是文本进行处理
function decideFile(path, previewpath,index){
curRowData=Maindata.rows[index];
preview(path, previewpath);//文本
} //显示文本文件预览
function preview(path, previewpath){
$('#ic_flexPaperZhezhao').show();
var swfPath =filePreview+previewpath;
$.ajax({
type: 'POST',
url: '<%=request.getContextPath()%>/ImportTextBean_Servlet',
data: 'active=fileToSwf&filePath='+path,
//dataType: 'json',
success: function(datas){
if(datas != '') {
var json = eval("("+datas+")");
//判断文件是否转换成功
if(json[0].MSG == '转换成功'){
$('#documentViewer').FlexPaperViewer({
config : {
//需要使用FlexPaper打开的文档
SWFFile : escape(swfPath),
//初始化缩放比例
Scale : 1.0,
//缩放样式,其他可选值包括：easenone，easeout，linear，easeoutquad
ZoomTransition : 'easeout',
//从一个缩放比例变为另外一个缩放比例需要花费的时间，该参数值应该为0或更大
ZoomTime : 0.5,
//缩放比例之间间隔
ZoomInterval : 0.2,
//初始化时自适应页面
FitPageOnLoad : false,
//初始化时自适应页面宽度
FitWidthOnLoad : false,
//当设置为true时，单击全屏按钮会打开一个FlexPaper最大化的新窗口而不是全屏，当由于flash播放器因为安全而禁止全屏，而使用flexpaper作为独立的flash播放器的时候设置为true是个优先选择
FullScreenAsMaxWindow : false,
//当设置为true时，展示文档时不会加载完整个文档，而是逐步加载，但是需要将文档中转化为9以上的版本（使用pdf2swf的时候使用-T 9标签）
ProgressiveLoading : false,
//设置最小的缩放比例
MinZoomSize : 0.5,
//设置最大的缩放比例
MaxZoomSize : 3,
//设置为true时，单击搜索所有符合条件的地方高亮显示
SearchMatchAll : false,
//设置启动模式如“Portrait”或“TowPage”
InitViewMode : 'Portrait',
RenderingOrder : 'flash',
StartAtPage : '',
//工具栏上是否显示样式选择框
ViewModeToolsVisible : true,
//工具栏上时候显示缩放工具
ZoomToolsVisible : true,
//工具栏上是否显示导航工具
NavToolsVisible : true,
//工具栏上是否显示光标工具
CursorToolsVisible : true,
//工具栏上是否显示搜索工具
SearchToolsVisible : false,
WMode : 'window',
//设置地区（语言）
localeChain: 'zh_CN'
}
}); $('#ic_flexPaperZhezhao').hide();
$('#ic_flexPaperDiv').show();
}else if(json[0].MSG == '转换失败'){
//判断serverMsg值
if(json[0].serverMsg == 'openoffice服务未启动'){
alertMsg('openoffice服务已重新启动，点击确定后可重新预览！');
}else if(json[0].serverMsg == 'openofficeBat文件不存在'){
alertMsg('openoffice服务启动文件不存在，如有疑问请联系管理员！');
}else{
alertMsg('文件暂时无法预览，如有疑问请联系管理员！');
}
$('#ic_flexPaperZhezhao').hide();
}
}
}
});
} </script>
</html>
Servlet代码：
package or.og.jxldemo; import java.io.IOException;
import java.net.URLDecoder;
import java.sql.SQLException;
import java.util.Vector; import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload; import com.pantech.base.common.exception.WrongSQLException;
import com.pantech.base.common.tools.JsonUtil;
import com.pantech.base.common.tools.MyTools;
import com.pantech.base.common.tools.TraceLog; import net.sf.json.JSONArray; /**
* Servlet implementation class ImportTextBean_Servlet
*/
public class ImportTextBean_Servlet extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
} protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//设置字符编码为UTF-8
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8"); String active = MyTools.StrFiltr(request.getParameter("active"));// 拿取前台的active值
int pageNum = MyTools.parseInt(request.getParameter("page")); //获得页面page参数 分页
int pageSize = MyTools.parseInt(request.getParameter("rows")); //获得页面rows参数 分页 Vector jsonV = null;//返回结果集
JSONArray jal = null;//返回json对象
ImportTextBean bean = new ImportTextBean(request);
this.getFormData(request, bean); //获取SUBMIT提交时的参数（AJAX适用）
System.out.println("active:--"+active); //读取学生信息
if("loadElective".equalsIgnoreCase(active)){
try {
jsonV = bean.loadElective(pageNum, pageSize); jal = (JSONArray)jsonV.get(2);
response.getWriter().write("{\"total\":" + MyTools.StrFiltr(jsonV.get(0)) + ",\"rows\":" + jal.toString() + "}");//返回前台datagrid需要的数据格式
TraceLog.Trace("{\"total\":" + MyTools.StrFiltr(jsonV.get(0)) + ",\"rows\":" + jal.toString() + "}");
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} //查询附件信息表
if("queryList".equalsIgnoreCase(active)) {
String XSBH =MyTools.StrFiltr(request.getParameter("XSBH")); //学生编号
try {
jsonV = bean.queryList(XSBH);
jal = (JSONArray)jsonV.get(2);//转化为JSON数据格式
response.getWriter().write(jal.toString());//返回数据到前台
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} //上传附件请求方法
if("uploadify".equalsIgnoreCase(active)){
String XSBH =MyTools.StrFiltr(request.getParameter("XSBH")); //学生编号
String savePath = "";
savePath=MyTools.getProp(request, "Base.JYWDStandardUpLoadPath");
String savetestPath = MyTools.getProp(request, "Base.testPathFile"); System.out.println("--上传路径："+savePath+"--文档类型：");
DiskFileItemFactory fac = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(fac);
upload.setHeaderEncoding("utf-8"); bean.uploadifyFile(savePath, request, response); //调用创建文件方法
if (bean.getMSG().equals("保存成功")) {
try {
bean.UploadToDB(request,XSBH);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (WrongSQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} //调用插入数据方法
response.getWriter().write(bean.getMSG());
}else {
response.getWriter().write(bean.getMSG());
}
} //将word等文件转换成swf格式
if("fileToSwf".equalsIgnoreCase(active)){
String path = MyTools.StrFiltr(request.getParameter("filePath")); //文件路径
String filePath =path;
Office2SWF o2s = new Office2SWF(request, filePath);
boolean flag = o2s.conver(); if(flag){
jal = JsonUtil.addJsonParams(jal,"MSG", "转换成功");
}else{
jal = JsonUtil.addJsonParams(jal,"MSG", "转换失败");
if("openoffice服务未启动".equalsIgnoreCase(o2s.getMSG()) || "openofficeBat文件不存在".equalsIgnoreCase(o2s.getMSG())){
jal = JsonUtil.addJsonParams(jal, "serverMsg", o2s.getMSG());
}
}
response.getWriter().write(jal.toString());
} //删除附件信息表
if("deleteRow".equalsIgnoreCase(active)) {
String FJXXBH = MyTools.StrFiltr(request.getParameter("FJXXBH")); //附件信息编号 try {
//调用删除操作
bean.deleteRow(FJXXBH);
//返回操作信息
jal=JsonUtil.addJsonParams(jal, "msg", bean.getMSG());
response.getWriter().write(jal.toString());
} catch (SQLException e) {
e.printStackTrace();
jal = JsonUtil.addJsonParams(jal, "msg", "无法获取数据<br>"+bean.getMSG());
response.getWriter().write(jal.toString());
} catch (WrongSQLException e) {
e.printStackTrace();
}
} } /**
* 从界面没获取参数
* @date
* @author:yeq
* @param request
* @param MajorSetBean
*/
private void getFormData(HttpServletRequest request, ImportTextBean bean){
bean.setUSERCODE(MyTools.getSessionUserCode(request)); //USERCODE
} }
Bean代码：
package or.og.jxldemo; import java.io.BufferedInputStream;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.sql.SQLException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Vector; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload; import com.pantech.base.common.db.DBSource;
import com.pantech.base.common.exception.WrongSQLException;
import com.pantech.base.common.tools.MyTools; public class ImportTextBean { private HttpServletRequest request;
private String USERCODE;//用户编号
private DBSource db; private String GX_FJXXBH;//附件信息编号
private String GX_FJXXWJM;//附件信息文件名
private String GX_FJXXTYPT;//附件信息文件类型
private String GX_FJXXWJLJ;//附件信息文件路径
private String GX_FJXXYLLJ;//附件信息预览路径
private String MSG; //提示信息
/**
* 构造函数
* @param request
*/
public ImportTextBean(HttpServletRequest request) {
this.request = request;
this.db = new DBSource(request);
} //读取学生信息
public Vector loadElective(int pageNum,int pageSize) throws SQLException {
DBSource dbSource = new DBSource(request);
Vector vector = null;
String sql = ""; sql="SELECT * FROM [student].[dbo].[V_基础信息_学生信息表] ";
vector = dbSource.getConttexJONSArr(sql, pageNum, pageSize);
return vector;
} //查询附件信息表
public Vector queryList(String XSBH) throws SQLException {
String sql="";
Vector vec = null; // 结果集
sql="SELECT [编号],[学生编号],[文件名],[文件类型],[文件路径],[预览路径],[创建人],convert(nvarchar(19),创建时间,21) as 创建时间,[状态] " +
"FROM [V_学生管理_附件信息表] where 学生编号 ='" + MyTools.fixSql(XSBH)+"'";
vec = db.getConttexJONSArr(sql, 0, 0);
return vec;
} //Uploadify上传文件
public void uploadifyFile(String savePath, HttpServletRequest request, HttpServletResponse response){
File f1 = new File(savePath);
//当文件夹不存在时创建
if (!f1.exists()) {
f1.mkdirs();
}
DiskFileItemFactory fac = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(fac);
upload.setHeaderEncoding("utf-8");
List fileList = null;
try {
fileList = upload.parseRequest(request);
Iterator<FileItem> it = fileList.iterator(); String name = ""; //文件名
String extName = ""; //文件后缀名
int dian=0;//点所在的位置 while (it.hasNext()) {
FileItem item = it.next();
if (!item.isFormField()) {
name = item.getName();
String fileName = name;
long size = item.getSize();
String type = item.getContentType();
System.out.println(size + " " + type);
if (name == null || name.trim().equals("")) {
continue;
}
//扩展名格式
if (name.lastIndexOf(".") >= 0) {
extName = name.substring(name.lastIndexOf(".")); //获取文件格式
}
File file = null;
String filePath = ""; //文件路径
String tempFilePath = ""; //文件临时路径
//SimpleDateFormat form = new SimpleDateFormat("HH-mm-ss-SS");
long ct =System.currentTimeMillis(); //获得当前系统时间毫秒，毫秒数其实就是自1970年1月1日0时起的毫秒数
Date newdate=new Date();//给图片加时间为防止页面图片不刷新
//String temp1=form.format(newdate);
do {
//生成文件名
//name = temp1.replaceAll("-", "").toUpperCase();
name=String.valueOf(ct)+"-"+this.getUSERCODE(); //获得毫秒数生成文件名加上当前登入人
filePath = savePath +""+ name+extName ;
tempFilePath = name+""+extName;
dian=tempFilePath.indexOf(".");
file = new File(filePath);
} while (file.exists());
File saveFile = new File(filePath);
item.write(saveFile); //判断如果文件是txt文件的话，根据不同编码修改编码为UTF-8，以免预览出现乱码
if(".txt".equalsIgnoreCase(extName)){
String code = judgeCharset(new File(filePath));//判断文件编码
//System.out.println("++++++++++++++++++++++++++++++上传文件字符集为："+code);
if(!"UTF-8".equalsIgnoreCase(code)){
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(filePath)),"UTF-8"));
bw.write(new String(item.getString(code).getBytes("UTF8"),"UTF-8"));
bw.flush();
bw.close();
}
}
this.setGX_FJXXTYPT(extName); //附件信息文件类型,执行获得附件类型字段方法
this.setGX_FJXXWJM(fileName); //文件名
this.setGX_FJXXWJLJ(filePath); //文件完整路径
this.setGX_FJXXYLLJ(tempFilePath.substring(0, dian)+".swf"); //文件临时路径
System.out.println(extName+":"+fileName+"&&"+filePath);
}
this.setMSG("保存成功");
} } catch(Exception e){
this.setMSG("保存失败");
e.printStackTrace();
}
} //往数据库插入
public void UploadToDB(HttpServletRequest req, String XSBH) throws SQLException, WrongSQLException{
DBSource db = new DBSource(req); //声明数据库连接对象
SimpleDateFormat form = new SimpleDateFormat("HH-mm-ss-SS");
Date newdate=new Date();//给图片加时间为防止页面图片不刷新
String sql="";
String temp1=form.format(newdate);
System.err.println("SQL:"+temp1); sql = "insert into [V_学生管理_附件信息表] ([编号],[学生编号],[文件名],[文件类型],[文件路径],[预览路径],[创建人],[创建时间],[状态]) values ("+
"newid(),"+ //编号
"'"+MyTools.fixSql(XSBH)+"',"+ //学生编号
"'"+MyTools.fixSql(this.getGX_FJXXWJM())+"',"+ //文件名
"'"+MyTools.fixSql(this.getGX_FJXXTYPT())+"',"+ //文件类型
"'"+MyTools.fixSql(this.getGX_FJXXWJLJ())+"',"+ //文件路径
"'"+MyTools.fixSql(this.getGX_FJXXYLLJ())+"',"+ //预览路径
"'post',"+ //USERCODE
"getDate(),'1'"+ //创建时间
")";
if(db.executeInsertOrUpdate(sql)){
this.setMSG("上传文件成功");
}else{
this.setMSG("上传文件失败");
} } //判断文件编码
public String judgeCharset(File file) {
String charset = "GBK";
byte [] first3Bytes = new byte[3];
try {
boolean checked = false;
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
bis.mark(0);
int read = bis.read(first3Bytes, 0, 3);
if (read == -1) return charset;
if (first3Bytes[0] == (byte)0xFF && first3Bytes[1] == (byte)0xFE) {
charset = "UTF-16LE";
checked = true;
}else if(first3Bytes[0] == (byte)0xFE && first3Bytes[1] == (byte)0xFF) {
charset = "UTF-16BE";
checked = true;
}else if(first3Bytes[0] == (byte)0xEF && first3Bytes[1] == (byte)0xBB && first3Bytes[2] == (byte)0xBF) {
charset = "UTF-8";
checked = true;
}
bis.reset(); if (!checked) {
while ((read = bis.read()) != -1) {
if (read >= 0xF0)
break;
if (0x80<=read && read <= 0xBF) //单独出现BF以下的，也算是GBK
break;
if (0xC0<=read && read <= 0xDF) {
read = bis.read();
if (0x80<= read && read <= 0xBF)//双字节 (0xC0 - 0xDF) (0x80 - 0xBF),也可能在GB编码内
continue;
else
break;
} else if (0xE0 <= read && read <= 0xEF) {//也有可能出错，但是几率较小
read = bis.read();
if (0x80<= read && read <= 0xBF) {
read = bis.read();
if (0x80<= read && read <= 0xBF) {
charset = "UTF-8";
break;
} else
break;
} else
break;
}
}
}
bis.close();
} catch (Exception e) {
e.printStackTrace();
} return charset;
} //删除附件信息表
public void deleteRow(String FJXXBH)throws SQLException, WrongSQLException{
String sql = "";
Vector vec = null; //查询文件路径
String fileName = "";
sql = "select [文件路径] from [V_学生管理_附件信息表] where 编号='" + MyTools.fixSql(FJXXBH) + "'";
vec = db.GetContextVector(sql);
if(vec.size()>0 && vec!=null)
fileName = MyTools.fixSql(MyTools.StrFiltr(vec.get(0))); sql = "delete from [V_学生管理_附件信息表] where 编号='" + MyTools.fixSql(FJXXBH) + "' "; if(db.executeInsertOrUpdate(sql)){
if(fileName.length()>0){
//截取文件名
fileName = fileName.substring(fileName.lastIndexOf("/")+1, fileName.lastIndexOf("."));
//删除相关文件
deleteFile(fileName);
} this.setMSG("删除成功");//成功设置消息为<删除成功>
}else{
this.setMSG("删除失败");//失败设置消息为<删除成功>
}
} //删除相关文件
public boolean deleteFile(String fileName){
boolean result = true; //获取配置路径
String url = MyTools.getProp(request, "Base.JYWDStandardUpLoadPath");
//删除该教学标准信息的上传文件及pwf文件
File folder = new File(url);
File temp = null;
File[] filelist = folder.listFiles();//列出文件里所有的文件
int loc = 0;
for(int i=0; i<filelist.length; i++){//对这些文件进行循环遍历
temp = filelist[i];
loc = temp.getName().indexOf(fileName);//获取文件名字符的位置
if(loc!=-1){//去掉后缀，如果文件名为该文件名的话就删除
temp.delete();//删除文件
}
} return result;
} public String getGX_FJXXBH() {
return GX_FJXXBH;
} public void setGX_FJXXBH(String gX_FJXXBH) {
GX_FJXXBH = gX_FJXXBH;
} public String getGX_FJXXWJM() {
return GX_FJXXWJM;
} public void setGX_FJXXWJM(String gX_FJXXWJM) {
GX_FJXXWJM = gX_FJXXWJM;
} public String getGX_FJXXTYPT() {
return GX_FJXXTYPT;
} public void setGX_FJXXTYPT(String gX_FJXXTYPT) {
GX_FJXXTYPT = gX_FJXXTYPT;
} public String getGX_FJXXWJLJ() {
return GX_FJXXWJLJ;
} public void setGX_FJXXWJLJ(String gX_FJXXWJLJ) {
GX_FJXXWJLJ = gX_FJXXWJLJ;
} public String getGX_FJXXYLLJ() {
return GX_FJXXYLLJ;
} public void setGX_FJXXYLLJ(String gX_FJXXYLLJ) {
GX_FJXXYLLJ = gX_FJXXYLLJ;
} public String getUSERCODE() {
return USERCODE;
} public void setUSERCODE(String uSERCODE) {
USERCODE = uSERCODE;
} public String getMSG() {
return MSG;
} public void setMSG(String mSG) {
MSG = mSG;
} }
转换PDF代码：（注：此方法在Servlet层调用进行处理）
package or.og.jxldemo; import java.io.BufferedInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream; import javax.servlet.http.HttpServletRequest; import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter;
import com.pantech.base.common.tools.MyTools; /**
* doc docx格式转换
*
* @author Administrator
*
*/
public class Office2SWF {
private static final int environment = 1;// 环境 1：windows 2:linux
// (只涉及pdf2swf路径问题)
private String fileString;
private String outputPath = "";//输入路径 ，如果不设置就输出在默认的位置
private String fileName;
private File pdfFile;
private File swfFile;
private File docFile;
private String MSG; private HttpServletRequest request; public Office2SWF(HttpServletRequest request, String fileString) {
this.request = request;
init(fileString);
} /**
* 重新设置file
*
* @param fileString
*/
public void setFile(String fileString) {
init(fileString);
} /**
* 初始化
*
* @param fileString
*/
private void init(String fileString) {
this.fileString = fileString;
fileName = fileString.substring(0, fileString.lastIndexOf("."));
docFile = new File(fileString);
pdfFile = new File(fileName + ".pdf");
swfFile = new File(fileName + ".swf");
} /**
* 转为PDF
*
* @param file
*/
private void doc2pdf() throws Exception {
if (docFile.exists()) {
if (!pdfFile.exists()) {
try {
OpenOfficeConnection connection = new SocketOpenOfficeConnection("127.0.0.1", 8100);
connection.connect();
DocumentConverter converter = new OpenOfficeDocumentConverter(connection);
converter.convert(docFile, pdfFile);
// close the connection
connection.disconnect();
System.out.println("****pdf转换成功，PDF输出：" + pdfFile.getPath() + "****");
} catch (java.net.ConnectException e) {
e.printStackTrace();
System.out.println("****swf转换器异常，openoffice服务未启动！****");
Runtime rt = Runtime.getRuntime();
String batPath = MyTools.getProp(request, "Base.openofficeBatPath");
java.io.File file = new java.io.File(batPath);
// 检查BAT文件是否存在
if (file.isFile() && file.exists()) {
rt.exec(batPath);
this.setMSG("openoffice服务未启动");
}else{
this.setMSG("openofficeBat文件不存在");
} throw e;
} catch (com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException e) {
e.printStackTrace();
System.out.println("****swf转换器异常，读取转换文件失败****");
throw e;
} catch (Exception e) {
e.printStackTrace();
throw e;
}
} else {
System.out.println("****已经转换为pdf，不需要再进行转化****");
}
} else {
System.out.println("****swf转换器异常，需要转换的文档不存在，无法转换****");
}
} /**
* 转换成 swf
*/
private void pdf2swf(boolean flag) throws Exception {
Runtime r = Runtime.getRuntime();
if (!swfFile.exists()) {
if (pdfFile.exists()) {
if (environment == 1) {// windows环境处理
try {
String swfToolsPath = MyTools.getProp(request, "Base.swfToolsPath");
Process p = r.exec(swfToolsPath + " "+ pdfFile.getPath() + " -o "+ swfFile.getPath() + " -T 9 -s languagedir=C:/xpdf/xpdf-chinese-simplified");
System.out.print(loadStream(p.getInputStream()));
System.err.print(loadStream(p.getErrorStream()));
System.out.print(loadStream(p.getInputStream()));
System.out.println("****swf转换成功，文件输出：" + swfFile.getPath() + "****");
if (pdfFile.exists() && flag) { //pdf文件存在并且源文件不是PDF格式
pdfFile.delete();
} } catch (IOException e) {
e.printStackTrace();
throw e;
}
} else if (environment == 2) {// linux环境处理
try {
Process p = r.exec("pdf2swf " + pdfFile.getPath() + " -o " + swfFile.getPath() + " -T 9 -s languagedir=C:/xpdf/xpdf-chinese-simplified");
System.out.print(loadStream(p.getInputStream()));
System.err.print(loadStream(p.getErrorStream()));
System.err.println("****swf转换成功，文件输出：" + swfFile.getPath() + "****");
if (pdfFile.exists()) {
pdfFile.delete();
}
} catch (Exception e) {
e.printStackTrace();
throw e;
}
}
} else {
System.out.println("****pdf不存在,无法转换****");
}
} else {
System.out.println("****swf已经存在不需要转换****");
}
} static String loadStream(InputStream in) throws IOException {
int ptr = 0;
in = new BufferedInputStream(in);
StringBuffer buffer = new StringBuffer(); while ((ptr = in.read()) != -1) {
buffer.append((char) ptr);
} return buffer.toString();
} /**
* 转换主方法
*/
public boolean conver() {
boolean flag = false;
if (swfFile.exists()) {
System.out.println("****swf转换器开始工作，该文件已经转换为swf****");
return true;
} if (environment == 1) {
System.out.println("****swf转换器开始工作，当前设置运行环境windows****");
} else {
System.out.println("****swf转换器开始工作，当前设置运行环境linux****");
}
try {
if (!pdfFile.exists()) {
flag = true;
doc2pdf();
pdf2swf(flag);
}else{
pdf2swf(flag);
}
} catch (Exception e) {
e.printStackTrace();
return false;
} if (swfFile.exists()) {
return true;
} else {
return false;
}
} /**
* 返回文件路径
*
* @param s
*/
public String getswfPath() {
if (swfFile.exists()) {
String tempString = swfFile.getPath();
tempString = tempString.replaceAll("\\\\", "/");
return tempString;
} else {
return "";
}
} /**
* 设置输出路径
*/
public void setOutputPath(String outputPath) {
this.outputPath = outputPath;
if (!outputPath.equals("")) {
String realName = fileName.substring(fileName.lastIndexOf("/"),
fileName.lastIndexOf("."));
if (outputPath.charAt(outputPath.length()) == '/') {
swfFile = new File(outputPath + realName + ".swf");
} else {
swfFile = new File(outputPath + realName + ".swf");
}
}
} /**
* Get&&Set方法
*/
public String getFileString() {
return fileString;
} public void setFileString(String fileString) {
this.fileString = fileString;
} public String getFileName() {
return fileName;
} public void setFileName(String fileName) {
this.fileName = fileName;
} public File getPdfFile() {
return pdfFile;
} public void setPdfFile(File pdfFile) {
this.pdfFile = pdfFile;
} public File getSwfFile() {
return swfFile;
} public void setSwfFile(File swfFile) {
this.swfFile = swfFile;
} public File getDocFile() {
return docFile;
} public void setDocFile(File docFile) {
this.docFile = docFile;
} public String getOutputPath() {
return outputPath;
} public String getMSG() {
return MSG;
} public void setMSG(String msg) {
MSG = msg;
} }