struts2+extjs文件上传完整实现(攻克了上传中的各种问题)

版权声明：本文为博主原创文章。未经博主同意不得转载。 https://blog.csdn.net/shanhuhau/article/details/28617999

首先须要引入上传控件

<script type="text/javascript" src="<%=basePath%>/js/ext/examples/ux/fileuploadfield/FileUploadField.js" charset="utf-8"></script>

弹出上传框相应extjs代码

var uploadForm=new Ext.FormPanel({id:'uploadForm',width:520,frame:true,fileUpload: true,  autoHeight:true,bodyStyle:'10px 10px 0px 10px',labelWidth:50,enctype: 'multipart/form-data', defaults:{anchor: '95%',allowBlank: false},items:[{xtype:'fileuploadfield',emptyText: '请选择上传文件...', fieldLabel: '文件：', id:'uploadFile',name: 'upload', allowBlank: false,   blankText: '文件名不能为空.',   buttonCfg: {text: '选择...'// 上传文件时的本地查找按钮}}],buttons: [{text: '上传',handler: function(){if(uploadForm.getForm().isValid()){uploadForm.getForm().submit({url:basePath+ '/documentManage/upload_upload.action',method:'POST',waitTitle: '请稍后',waitMsg: '正在上传文档文件 ...',success: function(fp, action){Ext.MessageBox.alert('信息', action.result.msg);  Ext.getCmp("uploadFile").reset();          // 指定文件字段的id清空其内容addwin.hide();grid.store.load({params:{start : 0,limit : combo.value}});},failure: function(fp, action){Ext.MessageBox.alert('警告', action.result.msg);  addwin.hide();}});}}},{text: '重置',handler: function(){uploadForm.getForm().reset();}}]});addwin = new Ext.Window({title : '上传新文档',closable : true,width : 520,autoHeight: true,border : false,plain : true,modal : true,layout : 'fit',bodyStyle : 'padding:5px;',maximizable : false,// 禁止最大化closeAction : 'hide',closable : true,// 是否有关闭collapsible : true,// 可折叠iconCls : 'bind',items : [uploadForm]
});

struts2 action代码

package cn.com.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 javax.servlet.http.HttpServletResponse;import org.apache.struts2.ServletActionContext;import cn.com.css.common.action.BaseAction;public class FileUploadAction extends BaseAction {private static final long serialVersionUID = 5156288255337069381L;private  String msg;private String contentType;private File docmentFile;private String fileName;public String upload() throws Exception {String realPath = "E:\\" + fileName;if (docmentFile.isFile()) {BufferedInputStream bis = new BufferedInputStream(new FileInputStream(docmentFile));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// 从源文件里取数据，写到目标文件里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();msg="文件上传失败";HttpServletResponse response = ServletActionContext.getResponse();response.setContentType("text/html;charset=UTF-8");return "none";} finally {if (bis != null) {try {bis.close();} catch (IOException ie) {ie.printStackTrace();}}if (bos != null) {try {bos.close();} catch (IOException ie) {ie.printStackTrace();}}}}msg="文件上传成功";HttpServletResponse response = ServletActionContext.getResponse();response.setContentType("text/html;charset=UTF-8");return "none";}public String getFileName() {return fileName;}public void setFileName(String fileName) {this.fileName = fileName;}// since we are using <s:file name="upload" .../> the file name will be// obtained through getter/setter of <file-tag-name>FileNamepublic String getUploadFileName() {return fileName;}public void setUploadFileName(String fileName) {this.fileName = fileName;}// since we are using <s:file name="upload" ... /> the content type will be// obtained through getter/setter of <file-tag-name>ContentTypepublic String getUploadContentType() {return contentType;}public void setUploadContentType(String contentType) {this.contentType = contentType;}// since we are using <s:file name="upload" ... /> the File itself will be// obtained through getter/setter of <file-tag-name>public File getUpload() {return docmentFile;}public void setUpload(File docmentFile) {this.docmentFile = docmentFile;}public String getMsg() {return msg;}public void setMsg(String msg) {this.msg = msg;}public String getContentType() {return contentType;}public void setContentType(String contentType) {this.contentType = contentType;}public File getDocmentFile() {return docmentFile;}public void setDocmentFile(File docmentFile) {this.docmentFile = docmentFile;}}

struts.xml配置：

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN""http://struts.apache.org/dtds/struts-2.0.dtd">
<struts><package name="documentManage" namespace="/documentManage"extends="global-struts-default"><action name="upload_*"class="cn.com.FileUploadAction"method="{1}"><result type="json" name="none"><param name="contentType">text/html;charset=utf-8</param><param name="excludeProperties">user.myQuestionses,user.messages,user.myNotes,user.taskPapers,user.tasks,user.testPapers,user.articles</param></result></action></package>
</struts>