外卖送餐微信小程序_angularjs完成多张图片上传并

日期:2021-01-12 类型:行业动态 

关键词:抠图换背景,免费的抠图软件,美图抠图,手机抠图软件哪个好,p图软件哪个好用

angularjs实现多张图片上传并预览功能       这篇文章主要为大家详细介绍了angularjs实现多张图片上传并预览功能,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

本文实例为大家分享了angularjs上传多张图片并预览的具体代码,供大家参考,具体内容如下

directive.js

 * 多图片上传及预览指令(需指定图片类名) 
angular.module('routerModule').directive('fileModel', ['$parse', 'fileReader', function($parse, fileReader) { 
 return { 
 restrict:'A', 
 link:function(scope, element, attrs, ngModel) { 
 var model = $parse(attrs.fileModel); 
 var modelSetter = model.assign; 
 var imgviewID = attrs["imgViewId"]; 
 var imgView = angular.element(document.querySelector("."+imgviewID)); 
 element.bind('change', function(event) { 
 scope.$apply(function() { 
 modelSetter(scope, element[0].files[0]); 
 }); 
 //附件预览 
 scope.file = (event.srcElement || event.target).files[0]; 
 fileReader.readAsDataUrl(scope.file, scope).then(function(result) { 
 imgView.attr("src",result); 
 }); 
 }); 
}]); 
angular.module('routerModule').factory('fileReader', ["$q", "$log", function($q, $log) { 
 var onLoad = function(reader, deferred, scope) { 
 return function() { 
 scope.$apply(function() { 
 deferred.resolve(reader.result); 
 }); 
 var onError = function(reader, deferred, scope) { 
 return function() { 
 scope.$apply(function() { 
 deferred.reject(reader.result); 
 }); 
 var getReader = function(deferred, scope) { 
 var reader = new FileReader(); 
 reader.onload = onLoad(reader, deferred, scope); 
 reader.onerror = onError(reader, deferred, scope); 
 return reader; 
 var readAsDataURL = function(file, scope) { 
 var deferred = $q.defer(); 
 var reader = getReader(deferred, scope); 
 reader.readAsDataURL(file); 
 return deferred.promise; 
 return { 
 readAsDataUrl: readAsDataURL 

html关键代码

 section 
 h4 法人证件 /h4 
 div 
 div 
 p 身份证正面 /p 
 div img ng-src="showImg/{{dealer.idCardFace}}" enlarge-pic/ /div 
 span i /i 点击编辑 
 input type="file" file-model="idCardFace" img-view-id="idCardFace" / 
 /span 
 /div 
 div 
 p 身份证反面 /p 
 div img ng-src="showImg/{{dealer.idCardBack}}" enlarge-pic/ /div 
 span i /i 点击编辑 
 input type="file" file-model="idCardBack" img-view-id="idCardBack" / 
 /span 
 /div 
 /div 
 /section 

controller.js中发送到后台的数据

$scope.postData = { 
 dealerId: $scope.dealer.dealerId, 
 companyName: $panyName, 
 companySize: $panySize, 
 idCardFace: angular.element(document.querySelector(".idCardFace"))[0].src, 
 idCardBack: angular.element(document.querySelector(".idCardBack"))[0].src 
$http.post('updateDealerCertificate',$scope.postData).success(function(data){ 
 !-- 成功执行代码 -- 

预览如下:

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持凡科。