struts2+extjs文件上传完整实现(解决了上传中的各种问题)
jopen
10年前
首先需要引入上传控件
<script type="text/javascript" src="<%=basePath%>/js/ext/examples/ux/fileuploadfield/FileUploadField.js" charset="utf-8"></script>
弹出上传框对应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: '文件名称不能为空.', 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(); 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>FileName public 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>ContentType public 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>