java extjs文件上传_使用extjs上传文件到java后台的完整代码案例

使用extjs上传文件到java后台的完整代码案例，本案例经过多次重复利用，贴出来，下次用的时候方便直接复制过去，也方便兄弟们。

extjs 弹出上传文件的窗口方法：

function showUploadWin(htmlText){

var uploadWin=Ext.getCmp("uploadFileWin");

if(!uploadWin){

uploadWin=new Ext.Window({

modal :true,

title:"导入word文档",

width:400,

id:"uploadFileWin",

height:230,

bodyBorder:false,

layout:"fit",

bodyStyle:"background-color:#FFF",

items:[{

border:false,

id:"uploadForm",

xtype:"form",

fileUpload: true ,

style:"padding-top:50px;",

items:[{

xtype:'textfield',

inputType:'file',

id:"uploadFileTextF",

name:'uploadFile',

labelStyle : 'text-align:right;font-weight:bold',

allowBlank: false ,

fieldLabel:'选择文件*'

}]

}],

buttonAlign:"center",

buttons:[{

text:"确定",

handler:function(){

var form=Ext.getCmp("uploadForm").form;

var fileName=Ext.getCmp("uploadFileTextF").getValue();

fileName=fileName.split('.');

fileName=fileName[fileName.length-1];

if(fileName!="doc"&&fileName!="docx"){

Ext.Msg.alert("系统提示","必须选择Microsoft Office Word 文档!");

return false;

}

if (form.isValid()){

form.submit({

method:'post',

url:'../WebManage?action=importWord', // 根据自己系统的需要调用程序处理上传文件 24

waitMsg:'文件上传中...',

success: function (form,action) {

if(Ext.getCmp("title").getValue()=="")Ext.getCmp("title").setValue(action.result.fileName);

htmlText.html(action.result.msg);

Ext.Msg.alert("系统提示", "文件导入成功!(注：如有个别图片样式问题请截图插入)");

Ext.getCmp("uploadFileWin").close();

},

failure: function (form,action){

Ext.Msg.alert("系统提示", "文件上传失败!");

}

});

} else {

Ext.Msg.alert("系统提示","请选择文件后再上传!");

}

}

},{

text:"关闭",

handler:function(){

Ext.getCmp("uploadFileWin").close();

}

}]

});

}

uploadWin.show();

}

复制代码

java后台接收extjs上传的文件的代码

String action=request.getParameter("action");

if(action.equals("importWord")){

int maxPostSize = 1000 * 1024 * 1024;

FileItemFactory factory = new DiskFileItemFactory();

ServletFileUpload servletFileUpload = new ServletFileUpload(factory);

servletFileUpload.setSizeMax(maxPostSize);

List fileItems = servletFileUpload.parseRequest(request);

Iterator iter = fileItems.iterator();

while (iter.hasNext()) {

FileItem item = (FileItem) iter.next();

if (!item.isFormField()) {// 是文件

String

realPath=request.getSession().getServletContext().getRealPath("");

java.util.Date date=new java.util.Date();

String imgPath="/img/fileImg/"+date.getTime()+"/";

realPath=realPath+imgPath;

String fileName=item.getName();

String

returnWordStr=WordToHtml.convert2Html(item.getInputStream(),realPath,imgPath);

PrintWriter out = response.getWriter();

returnWordStr = returnWordStr.replaceAll("\n", "").replaceAll("\r",

"");

returnWordStr = returnWordStr.replaceAll( "'", "'");

//returnWordStr = returnWordStr.replaceAll( "&", "&");

returnWordStr = returnWordStr.replaceAll( "\"", ""); //"

//returnWordStr = returnWordStr.replaceAll( "\t", " ");// 替换跳格

//returnWordStr = returnWordStr.replaceAll( " ", " ");// 替换空格

//returnWordStr = returnWordStr.replaceAll("

//returnWordStr = returnWordStr.replaceAll( ">", ">");

out.print("{success:true,msg:'"+returnWordStr+"',fileName:'"+fileName+"'}");

out.flush();

out.close();

}

}

}