今天突然想起来以前的关于EXT的上传的文章没有贴出来，现在贴出代码在此

var uploadForm= new Ext.FormPanel({    id: 'form-panel',            fileUpload: true,            width: 500,            frame: true,            //title: '流程文件上传',            collapsible:true,            autoHeight: true,            bodyStyle: 'padding: 10px 10px 0 10px;',            labelWidth: 50,            defaults: {                anchor: '95%',                allowBlank: false,                msgTarget: 'side'            },            items: [{xtype:'combo',width : 200,allowBlank : false,blankText : '必须选择文档类型',hiddenName : 'CId', //这个hiddenName指的就是BookTypeIdname : 'CName',store : new Ext.data.Store({autoLoad :true, reader: new Ext.data.JsonReader({//读取json数据                   root:'TCategoryList',                        //                   totalProperty:'totalProperty',  //总记录数                   id:'CId'                                 },Ext.data.Record.create([{name: 'CId'},{name: 'CName'}])),proxy : new Ext.data.HttpProxy({url : path+'doc/getTCategoryForDoc.action'})}),//设置数据源allQuery:'alldoc',//查询全部信息的查询字符串triggerAction: 'all',//单击触发按钮显示全部数据editable : false,//禁止编辑loadingText : '正在加载文档类型信息',//加载数据时显示的提示信息displayField:'CName',//定义要显示的字段valueField : 'CId',emptyText :'请选择文档类型',mode: 'remote',//远程模式id:'CName',fieldLabel:'类型'},{                xtype: 'fileuploadfield',                id: 'form-file',                emptyText: '请选择流程文件...',                fieldLabel: '文件',                name: 'upload', // ★ from字段，对应后台java的bean属性，上传的文件字段                buttonCfg: {    text: '',  // 上传文件时的本地查找按钮                    iconCls: 'icon-upload'  // 按钮上的图片，定义在CSS中                }            },            {                    xtype: 'hidden',                    id: 'fileName',                    emptyText: '请选择文档文件...',                    name: 'fileName',                    text:Ext.getCmp("form-file") //在上传这个框中，getCmp可以获取整条路径的最后的名称                                  },              {               xtype:'hidden',               name : 'docId',               id:'docId'               }           ],    buttons: [{                text: '上传',                handler: function(){                        if(uploadForm.getForm().isValid()){                    uploadForm.getForm().submit({                        url:path+ 'upload/upload.action?Tab_staffId='+staffId,                        method:'POST',        waitTitle: '请稍后',                        waitMsg: '正在上传文档文件 ...',    success: function(fp, action){                    updatedocListForUpload(action.result.docId,action.result.name,action.result.docUrl,action.result.CName,action.result.extType,action.result.state);                       msg('成功！', '文档文件上传成功！');                       //msg("返回的ID呢"+action.result.docId);           //Ext.log('上传成功。')    //Ext.log(action.failure)    //failure    //Ext.log(action.result.upload);    //Ext.log(action.result.msg);                            Ext.getCmp("form-file").reset();          // 指定文件字段的id清空其内容    Ext.getCmp("CName").reset();                        },    failure: function(fp, action){                            msg('失败！', '文档文件上传失败！');                        }                     });                    }                }            },{                text: '重置',                handler: function(){            uploadForm.getForm().reset();                }            }]        });

 具体处理的ACTION

package lsbpm.web.action;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.net.URLEncoder;import java.sql.Timestamp;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.UUID;import lsbpm.db.domain2.TCategory;import lsbpm.db.domain2.TDoc;import lsbpm.db.domain2.TDocCategory;import lsbpm.db.domain2.TStaff;import lsbpm.web.lecene.LuceneIndex;import net.sf.json.JSONObject;import org.apache.struts2.ServletActionContext;/** * Show case File Upload example's action. FileUploadAction */public class FileUploadAction extends BaseAction {private static final long serialVersionUID = 5156288255337069381L;private String contentType;private File upload;private String fileName;private String caption;    private String CId;//文档TCategory的IDprivate String jsonMsg;// 返回ExtJs upload form消息    private String Tab_staffId;public String getJsonMsg() {return jsonMsg;}public void setJsonMsg(String jsonMsg) {this.jsonMsg = jsonMsg;}// since we are using 
       the file name will be// obtained through getter/setter of 
      
       FileNamepublic String getUploadFileName() {return fileName;}public void setUploadFileName(String fileName) {this.fileName = fileName;}// since we are using 
        the content type will be// obtained through getter/setter of 
       
        ContentTypepublic String getUploadContentType() {return contentType;}public void setUploadContentType(String contentType) {this.contentType = contentType;}// since we are using 
         the File itself will be// obtained through getter/setter of 
        
         public File getUpload() {return upload;}public void setUpload(File upload) {this.upload = upload;}public String getCaption() {return caption;}public void setCaption(String caption) {this.caption = caption;}// 解析上传的流程文件，将流程图分解后存入数据库中// 用json格式返回成功失败及错误信息等，可直接与ExtJS衔接。public String combinStr(String str,int i){str=str.substring(0,str.indexOf("."))+i+ str.substring(str.indexOf("."));return str;}public String upload() throws Exception {System.out.println("执行上传文件操作。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。");// 定义要返回的对象，返回时用json包装HashMap
         
           retMsg = new HashMap
          
           ();TStaff staff=(TStaff)genericService.findById(TStaff.class, Tab_staffId);TCategory category=(TCategory)genericService.findById(TCategory.class, CId);TDoc doc = new TDoc();doc.setName(fileName);//-------------------------------------------------(1)filename属性(非空)System.out.println("拼装前------------------>"+fileName);List
           
             propertisList=new ArrayList
            
             ();propertisList.add("docVersion-");  List
             
               result=genericService.findByProperty(doc, propertisList, 0, 0);doc.setDocVersion(1);//-------------------------------------------------(2)DocVersion属性(非空)        int size=propertisList==null?0:result.size();        if(size>0){       int docVersion=result.get(0).getDocVersion();       doc.setDocVersion(docVersion+1);       fileName=combinStr(fileName,docVersion+1);主要针对相同名称的文件处理加上版本号       System.out.println("--------------------经过版本升级---------------------------------");        }        doc.setDocAlias(fileName);//-------------------------------------------------(3)DocAlias属性(非空)        doc.setBoost(0d);//-------------------------------------------------(4)Broost属性(非空)        System.out.println("拼装后----------------->"+fileName);       String realPath="E:\\DataDir\\"+fileName;if (upload.isFile()) {BufferedInputStream bis = new BufferedInputStream(new FileInputStream(upload));BufferedOutputStream bos = null;try {bos = new BufferedOutputStream(new FileOutputStream(realPath));//为以防万一，以后写文件的路径尽量写成正双斜杠的// 从源文件中取数据，写到目标文件中byte[] buff = new byte[8192];for (int len = -1; (len = bis.read(buff)) != -1;) {bos.write(buff, 0, len);}bos.flush();} catch (IOException ie) {ie.printStackTrace();} finally {if (bis != null) {try {bis.close();} catch (IOException ie) {ie.printStackTrace();}}if (bos != null) {try {bos.close();} catch (IOException ie) {ie.printStackTrace();}}}       System.out.println("----------------------------0000");doc.setDocUrl(fileName);//-------------------------------------------------(5)DocUrl属性(非空)    doc.setExtType(fileName.substring(fileName.lastIndexOf('.')+1));//---------(6)extType属性(非空)   doc.setState("可用");//状态这个暂时写死为可用 //----------------------------------(7)state属性(非空)doc.setTStaffByDesigner(staff);//设计者先和操作者暂定为同一人-------------------- (8)designer属性(可空)    doc.setTStaffByOperator(staff);//------------------------------------------(9)operator属性(非空)    doc.setUpgradeDate(new Timestamp(System.currentTimeMillis()));boolean isSuccess = false;System.out.println("即将要插入数据库的文件内容为："+doc);genericService.create(doc);//插入文档类型TDocCategory cate=new TDocCategory();cate.setTCategory(category);cate.setTDoc(doc);cate.setBoost(0d);genericService.create(cate);String Id = doc.getDocId();System.out.println("新增后获取到的员工ID" + Id);System.out.println(fileName + "----------------");String extTypes=doc.getExtType();//如果上传的文件在我要建立索引的范围之内，可以见索引，否则不建立if(extTypes.equals("pdf")||extTypes.equals("html")||extTypes.equals("rtf")||extTypes.equals("doc")||extTypes.equals("ppt")||extTypes.equals("xls")||extTypes.equals("txt")){ LuceneIndex index=new LuceneIndex();//建立索引     index.buildsingle(doc);     System.out.println("索引完毕。。。。。。。。。。。。。。。。。。。。。");}   // 流程文件解析和加载，成功！ 将流打到客户端retMsg.put("success", "true");retMsg.put("docId", Id);retMsg.put("name", doc.getDocAlias());if(doc.getTDocCategories().size()==1){ for(TDocCategory cate1:doc.getTDocCategories()){ retMsg.put("CName",cate1.getTCategory().getName()); }}retMsg.put("extType", doc.getExtType());retMsg.put("state", doc.getState());retMsg.put("docId", doc.getDocId());retMsg.put("docUrl", doc.getDocUrl());retMsg.put("upload", "ok");retMsg.put("msg", "hhaahhaa!!");} else {// 流程文件解析和加载，失败！retMsg.put("failure", "true");retMsg.put("upload", "error");retMsg.put("msg", " failed !!");}// json包装返回对象jsonMsg = JSONObject.fromObject(retMsg).toString();return SUCCESS;}public String getFileName() {return fileName;}public void setFileName(String fileName) {this.fileName = fileName;}public String getCId() {return CId;}public void setCId(String cId) {CId = cId;}public String getTab_staffId() {return Tab_staffId;}public void setTab_staffId(String tabStaffId) {Tab_staffId = tabStaffId;}}
             
            
           
          
         
        
       
      

struts.xml中添加一行代码

  <!-- 该属性指定Struts 2文件上传中整个请求内容允许的最大字节数 -->