ajaxfileupload.js文件上传插件总结

1.下载AjaxFileUpload.js插件

2.修改ajaxfileupload.js文件中的uploadHttpData方法(蓝色部分为修改内容):

  原方法:

  uploadHttpData: function( r, type ) {
    var data = !type;
    data = type == "xml" || data ? r.responseXML : r.responseText;
    // If the type is "script", eval it in global context
    if ( type == "script" )
      jQuery.globalEval( data );
    // Get the JavaScript object, if JSON is used.
    if ( type == "json" )
      eval( "data = " + data );
    // evaluate scripts within html
    if ( type == "html" )
      jQuery("<div>").html(data).evalScripts();

    return data;
  }

  修改后的方法:

  uploadHttpData: function( r, type ) {
    var data = !type;
    data = type == "xml" || data ? r.responseXML : r.responseText;
    // If the type is "script", eval it in global context
    if ( type == "script" )
      jQuery.globalEval( data );

    // Get the JavaScript object, if JSON is used.
    if ( type == "json" ){
      data = r.responseText;
      var start = data.indexOf(">");
      if(start != -1){
        var end = data.indexOf("<", start + 1);
        if(end != -1){
          data = data.substring(start + 1, end);
        }
      }
      eval( "data = " + data );
    }

    // evaluate scripts within html
    if ( type == "html" )
      jQuery("<div>").html(data).evalScripts();

    return data;
  }

3.在ajaxfileupload.js文件中添加handError方法:

  handleError: function( s, xhr, status, e ) {
    if ( s.error ) {
      s.error.call( s.context || s, xhr, status, e );
    }
    if ( s.global ) {
      (s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );
    }
  }

4.jsp页面代码如下:

  <tr>
    <td>
      <label>应用图标:</label>
      <table><tr>
        <td><img src="http://drmcmm.baidu.com/media/id=rHczrjT3PWf&gp=403&time=nHndnWcdPjnvP6.jpg" alt="图标" style="width:40px"/>&nbsp;&nbsp;</td>
        <td><input type="file" maxlength="255" style="width:65px" id="imageFile" name="imageFile" value=""/>&nbsp;&nbsp;</td>
        <td>支持jpg, png格式<br>尺寸:72*72 114*114 180*180</td>
      </tr></table>
    </td>
  </tr>
  <tr>
    <td><label>URL地址:</label><input type="text" name="commandURL" id="commandURL" style="width:250px;"/></td>
  </tr>

5.提交表单的js代码:

  addXXXFunction:function(){
    var appId = $("#appId").val();
    var commandName = $("#commandName").val();
    var commandURL = $("#commandURL").val();
    var summary = $("#summary").val();
    var commandStyle = "0";
    var parameterType = $("#parameterType").val();
    var applicationArea = $("#applicationArea").val();
    var image = $("#imageFile").val();

    //data为额外传入表单的数据
    var data = {"applicationCommand.appId":appId, "applicationCommand.url":commandURL,"applicationCommand.summary":summary, "matchCommandVO.commandName":commandName, "matchCommandVO.commandStyle":commandStyle, "matchCommandVO.parameterType":parameterType, "matchCommandVO.applicationArea":applicationArea,"matchCommandVO.image":image};
    $.ajaxFileUpload(
      {
        url:"/yuyicloud/command/command_insertCommand.htm",

        secureuri:false,
        data:data,  //添加额外的表单数据
        fileElementId:'imageFile',  //此处必须与jsp页面的file id相同
        dataType:'json',
        success:function(data,status){
          if(data == "0"){
            parent.location.reload();
          }
        },
        error:function(data,status,e){
          alert("请重新添加网页应用");
          parent.location.reload();
        }
      }
    )
    return false;
  }

6.java文件相对应的方法:

  

if(imageFile != null){
  FileInputStream in = new FileInputStream(imageFile);
  matchCommandVO.setId(getUUIDString());
  String name = matchCommandVO.getId();
  matchCommandVO.getImage();
  String arg = matchCommandVO.getImage().substring(matchCommandVO.getImage().lastIndexOf("."));

  //文件被保存的目标地址(当前项目所在服务器的特理路径)
  String imgPath = ServletActionContext.getServletContext().getRealPath("/") + "\\commandImage\\" + name + arg;

  //文件被引用的URL地址(及被存储到数据库中的url路径)
  matchCommandVO.setImage("http://localhost:8090" + ServletActionContext.getServletContext().getContextPath() + "\\commandImage\\" + name + arg);
  File file = new File(imgPath);
  FileOutputStream outStream = new FileOutputStream(file);
  byte buffer[] = new byte[in.available()];
  in.read(buffer);
  outStream.write(buffer);
  in.close();
  outStream.close();

  ........

  //额外的表单参数处理

  ........
}

posted @ 2013-02-26 18:02  Brin Page  阅读(2231)  评论(0编辑  收藏  举报