基于ajax html实现文件上传技巧总结

<a href="javascript:;" up-type-id="1" class="btn btn-default small-btn switch-upload-method"><span>本地上传</span></a><a href="javascript:;" up-type-id="2" class="upload-file-instead btn btn-default small-btn switch-upload-method"><span>打包工具</span></a><input type="file" name="apkFiles[]" id="local-upload-real-file" class="upload-file-real hide" response-id="local-upload-container" multiple='true' /><input type="file" name="apkToolFiles[]" id="apk-tool-real-file" class="upload-file-real hide" response-id="apk-tool-container-textarea" /><script> $(function(){  var alertTitle = '系统提示：';  var submitId = '#do-submit';  $('#taskForm').Validform({   btnSubmit: submitId,   tiptype: 1,   ignoreHidden: true,   dragonfly: false,   tipSweep: true,   label: ".label",   showAllError: false,   postonce: true,   ajaxPost: true,   datatype:{   },   beforeCheck:function(curform){   },   beforeSubmit:function(curform){    $('.upload-file-real').attr('disabled', 'disabled');    $(submitId).attr('disabled', 'disabled'); //提交前禁用按钮    ajaxSubmitForm(curform);    $(submitId).removeAttr('disabled');   //失败后恢复可提交    return false;   },   submitForm: function(){}      //不再起作用  });  //切换上传方法  $('.switch-upload-method').off().on('click', function(){//   $(submitId).attr('disabled', 'disabled');   var pObj = $(this).parent().find('.switch-upload-method');   var index = pObj.index(this);   var uploadTypeId = $('#upload-type-id').val();      //上传方式：1:打包工具;2:本地上传,0:没有上传方式   var uploadType = $(this).attr('up-type-id');   if(parseInt($('#sub-channel-count').html()) > 0){    if(uploadTypeId != uploadType){     layer.alert('还有子渠道包数据，不能完成切换，请先确认清除再切换！');     return false;    }   }   pObj.not(':eq(' + index + ')').removeClass('btn-danger').addClass('btn-default');   pObj.eq(index).removeClass('btn-default').addClass('btn-danger');   if(uploadType == 36){    //local-upload    $('#upload-type-id').val(uploadType);    $('#init-apk-container').show();    $('#apk-tool-container').hide();    $('#upload-main-control').find('.del-it-main').css({display: 'inline-block'});    $('#local-upload-real-file').trigger('click');   }else if(uploadType == 35){   //apk-tool    $('#upload-type-id').val(uploadType);    $('#init-apk-container').hide();    $('#local-upload-container').hide();    $('#upload-main-control').find('.del-it-main').hide();    $('#apk-tool-container').show();   }  });  //本地上传  $('#local-upload-real-file').off().on('change', function(){   if(!$(this).val()){    return false;   }   file_size = 0;   filepath = $(this).val();   maxFileSize = 30 * 1024 * 1024;   var browserCfg = {};   var ua = window.navigator.userAgent;   if (ua.indexOf("MSIE") >=1 ){    browserCfg.ie = true;   }else if(ua.indexOf("Firefox") >=1 ){    browserCfg.firefox = true;   }else if(ua.indexOf("Chrome") >=1 ){    browserCfg.chrome = true;   }   if (browserCfg.ie) {    var img = new Image();    img.src = filepath;    file_size = img.fileSize;    while (true) {     if (img.fileSize > 0) {      if (img.fileSize > maxFileSize) {       alert("上传包超过30MB限制，请使用打包工具上传！");       return false;      }      break;     }    }   } else {    file_size = this.files[0].size;    if (file_size > maxFileSize) {     alert("上传包超过30MB限制，请使用打包工具上传！");     return false;    }   }   var responseObjId = $(this).attr('response-id');   var responseObj = $('#' + responseObjId);   $('#taskForm').ajaxSubmit({    url:'/aa/bb/uploadTmpApk',    resetForm: false,    dataType: 'json',    beforeSubmit: function(option){     window.loading = layer.load(2);    },    success: function(data, statusText){     layer.close(window.loading);     if(data.status == 1){      $('#version-identifier').val(data.version);      responseObj.html(data.apkInfoHtml);      responseObj.show();      var delObj = $('#upload-main-control').find('.del-it-main');      delObj.css({'display': 'inline-block'});      $('#sub-channel-count').html(data.apkTotal);      $('#init-apk-container').hide();      $(submitId).removeAttr('disabled');     }else{      layer.alert(data.info, {title: alertTitle});     }    },    error: function(data){     layer.close(window.loading);     layer.alert('未知错误，请稍后再试！');    }   });   return false;//防止dialog 自动关闭  });  //打包工具  $('#apk-tool-real-file').off().on('change', function(){   if(!$(this).val()){    return false;   }   var responseObjId = $(this).attr('response-id');   var responseObj = $('#' + responseObjId);   $('#Form').ajaxSubmit({    url:'/aa/bb/uploadTmpApkTool',    resetForm: false,    dataType: 'json',    beforeSubmit: function(option){     window.loading = layer.load(2);    },    success: function(data, statusText){     layer.close(window.loading);     if(data.status == 1){      $('#version-identifier').val(data.version);      responseObj.html(data.infoHtml);      var parentContainer = responseObj.parent().parent(),       nameContainer = parentContainer.find('.apk-name-container'),        delObj = parentContainer.find('.del-it-apk-tool');      nameContainer.html(data.apkName);      nameContainer.attr('title', data.apkName);      $('#apk-tool-file-tmp').html(data.fileInfo);      $(submitId).removeAttr('disabled');     }else{      layer.alert(data.info, {title: alertTitle});     }    },    error: function(data){     layer.close(window.loading);     layer.alert('未知错误，请稍后再试！');    }   });   return false;//防止dialog 自动关闭  });  $('.apk-tool-upload-button').on('click', function(){   $('#apk-tool-real-file').trigger('click');  }); });</script>