SWFUPLOAD的使用（java版）

本文主要是介绍SWFUPLOAD的使用（java版），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

很多开发的时候会遇到附加上传功能，最近项目中使用的是uploadswf插件，SWF主要是多文件无刷新上传，利用flash完成多文件上传操作下面把java开发中使用简单的介绍一下：

 

Jsp页面代码：

先在头部引入要使用到的样式文件和js文件

<linkhref="${ctx}/resource/uploadswf/default.css"rel="stylesheet"type="text/css"/>

    <scripttype="text/javascript"src="${ctx}/resource/uploadswf/swfupload.js"></script>

    <scripttype="text/javascript"src="${ctx}/resource/uploadswf/swfupload.queue.js"></script>

    <scripttype="text/javascript"src="${ctx}/resource/uploadswf/fileprogress.js"></script>

    <scripttype="text/javascript"src="${ctx}/resource/uploadswf/handlers.js"></script>

 

<!—使用的js方法 --> 

    <scripttype="text/javascript">

       var upload1;

     window.onload = function() {

           upload1 = new SWFUpload({

              // Backend Settings

              upload_url: "${ctx}/suqiu/topical-upload.action",//上传文件的action

              file_post_name: "file",

              post_params: {"contentId" :$("#msgContentId").val()},

                 //要使用到的参数，contentId在后台设置set get方法，不传就为空

              // File Upload Settings

              file_size_limit : "10240",  // 100MB大小自己设置

              file_types : "*.*",

              file_types_description :"All Files",//文件类型自己控制

              file_upload_limit :"10",

              file_queue_limit :"10",

 

              // Event HandlerSettings (all my handlers are in the Handler.js file)

              file_dialog_start_handler : fileDialogStart,

              file_queued_handler : fileQueued,

              file_queue_error_handler : fileQueueError,

              file_dialog_complete_handler : fileDialogComplete,

              upload_start_handler : uploadStart,

              upload_progress_handler : uploadProgress,

              upload_error_handler : uploadError,

              upload_success_handler : uploadSuccess,

              upload_complete_handler : uploadComplete,

 

              // ButtonSettings

              button_image_url :"${ctx}/resource/uploadswf/XPButtonUploadText_61x22.png",

              button_placeholder_id :"spanButtonPlaceholder1",

              button_width: 61,

              button_height: 22,

              button_text:"添加附件",

              button_text_left_padding:5,

              // Flash Settings

              flash_url : "${ctx}/resource/uploadswf/swfupload.swf",

             custom_settings : {

                  progressTarget :"fsUploadProgress1",

                  cancelButtonId :"btnCancel1"

              },

             

              // Debug Settings

              debug: false

           });

           //$("#SWFUpload_0").hide();

       }

      

       function deleteAttach(attachId,value){

           if(confirm("确定要删除该附件吗?")){

              $.post("${ctx}/suqiu/topicattach-delete.action?key="

                     + attachId,function(data) {

                         if (data =="no") {

                               alert("删除失败");

                            }else{

                                alert("删除成功");

                                window.location.reload();

                         }

                }

             );

           }

       }

//说明：插入（上传成功）、删除等方法在handlers.js里面定义，页面里不重写的话使用默认的，重写可以自己定义和传不同的参数

<!—页面代码 --> 

<tr>

              <tdclass="text">&nbsp;附件：</td>

              <tdcolspan='2'>

              <divstyle="padding-left:5px;">

              <spanid="spanButtonPlaceholder1"></span>

              <inputid="btnCancel1"type="button"value="取消上传"onclick="cancelQueue(upload1);"disabled="disabled"style="margin-left:2px;height:22px;font-size: 8pt;"/>

              <br/>

                <div class="fieldset flash"id="fsUploadProgress1">

                  <s:iterator value="topicalContent. Attachs"status="u">

                   <divclass="progressWrapper" id='FWSWFUpload<s:propertyvalue="#u.index"/>' style="opacity:1;">

                     <div class="progressContainerblue">

                       <aclass="progressCancel" href="#"style="visibility:visible;"> </a>

                         <div class="progressName"><inputtype="button" class="ico_attbig"><s:propertyvalue="attachName" /></div>

                         <div class="progressBarStatus">

                         <a οnclick="deleteAttach('<s:propertyvalue="attachId"/>',this);" href="#this">删除</a></div>

                         <div class="progressBarComplete"style=""></div>

                      </div>

                  </div>

                 </s:iterator>

              </div>

              </div>

              </td>

           </tr> 

    以上循环遍历出来了已经存在的附件，然后可以继续上传和删除。

 

后台action代码：

import java.io.File;

import java.text.SimpleDateFormat;

import java.util.Date;

import net.sf.json.JSONObject;

@Action(value="topicalcontent-upload")

    public String saveAttach(){

        TopicContentAttach noticeAttachs=newTopicContentAttach();

        TopicalContent obj=null;

        if(msgContentId!=null&&StringUtils.isNotBlank(msgContentId)){

        obj = topicalContentService.getTopicalContent(msgContentId);

        }else{

        obj= new TopicalContent();

        }

       noticeAttachs.setTopicalcontent(obj);

       String nameflll=upload();

noticeAttachs.setAttachUrl(FilePathSptUtil.UPLOAD_CMS+FilePathSptUtil.URL_SPT+FilePathSptUtil.CMS_ZHUANTI+

               FilePathSptUtil.URL_SPT+DateUtil.formatDateToString(new Date(), "yyyy-MM")+FilePathSptUtil.URL_SPT+nameflll);

       noticeAttachs.setAttachName(fileFileName);

       noticeAttachs.setUploadOriginName(fileFileName);

       String fileExtend = fileFileName.substring(fileFileName.lastIndexOf(".")+1,fileFileName.length());

       noticeAttachs.setAttachType(fileExtend);

       topicContentAttachService.save(noticeAttachs);

      return renderText( "{    attachId:\"" +noticeAttachs.getAttachId()+ "\" ,  attachName:\"" +noticeAttachs.getAttachName()+ "\" ,   attachUrl:\"" +noticeAttachs.getAttachUrl()+ "\" }" );

    }

     private Stringupload(){

       SimpleDateFormat formater =new SimpleDateFormat("yyyyMMddhhmmssSSSS");

       String filename=formater.format(new Date());

       String fileExtend = fileFileName.substring(fileFileName.lastIndexOf(".")+1,fileFileName.length());

       String root= FilePathSptUtil.UPLOAD_ROOT_PATH+FilePathSptUtil.UPLOAD_CMS+SPT+FilePathSptUtil.CMS_ZHUANTI+SPT+

                DateUtil.formatDateToString(new Date(),"yyyy-MM");

       String fullName=filename+"."+fileExtend;

       String dstPath = root+SPT+fullName;   //全路径

 

        File dirFile = new File(root);

       boolean isDir = dirFile.isDirectory();

       if(!isDir){//目录不存在则先建目录

           try{

              dirFile.mkdirs();

           }catch (Exception e) {

              File delFile = new File(root+SPT +fullName );

              deleteExitsFile(delFile);

           }

       }

       FileUtil.copyFile(file.getPath(), dstPath);//上传文件

       return fullName;

    }

    private voiddeleteExitsFile(File file) {

       if(file.exists() && file.isFile()){

           file.delete();

       }

    }

 

其中一些常量变量定义好：

    private StringfileFileName;

    private Filefile;

    private StringcontentId;

    privatestaticfinal StringPATH =FilePathSptUtil.UPLOAD_ROOT_PATH;

    privatestaticfinal StringSPT=File.separator;

 

// UPLOAD_ROOT_PATH在FilePathSptUtil类中定义，从配置文件读取的路径

    UPLOAD_ROOT_PATH =prop.getProperty("upload.root.path","/");

public StringgetContentId() {

       return contentId;

    }

publicvoidsetContentId(String contentId) {

       this.contentId = contentId;

    }

public File getFile() {

       returnfile;

    }

publicvoid setFile(File file){

       this.file = file;

    }

    public String getFileFileName() {

       returnfileFileName;

    }

publicvoidsetFileFileName(String fileFileName) {

       this.fileFileName = fileFileName;

    }

其中在struts2中在非IE内核的浏览器里会提示上传错误报302错误，接下来解决。

Upload_url:”${ctx}/suqiu/topicalcontent-upload.action;jsessionid=<%=request.getSession().getId()%>”;

 

附件下载： http://download.csdn.net/detail/shiyuezhong/4552201

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