做开发这么久一直被表单验证这个看似简单又不简单的东西搞得非常烦躁，于是写了个表单验证的框架，再也不用担心这个心烦的验证了。

这里使用AngularJS的指令进行处理代码及其简洁明了

下面是指令JS代码

app.directive('ccForm',['$parse',function ($parse) { return { restrict:'A', link:function (scope,element,attrs) { var first=true; var errors=0; var checkInterval; function showError(input,errorIndex) { if(first){ errors++; $parse(element.attr('cc-form')).assign(scope,false); refreshScope(scope); return; } input.addClass('hasError'); input.closest('.form-group').addClass('hasError'); input.next('.help-block').find('.cc-show').removeClass('cc-show'); input.next('.help-block').find('[cc-error-'+errorIndex+']').addClass('cc-show'); input.closest('.form-group').next('.help-block').find('.cc-show').removeClass('cc-show'); input.closest('.form-group').next('.help-block').find('[cc-error-'+errorIndex+']').addClass('cc-show'); } function hidError(input,errorIndex) { errors--; if(errors==0){ $parse(element.attr('cc-form')).assign(scope,true); refreshScope(scope); } input.removeClass('hasError'); input.closest('.form-group').removeClass('hasError'); input.next('.help-block').find('[cc-error-'+errorIndex+']').removeClass('cc-show'); input.closest('.form-group').next('.help-block').find('[cc-error-'+errorIndex+']').removeClass('cc-show'); } function checkInput(input) { var that=$(input); // $('[cc-email]')[0].attributes[0].name var attrs=input.attributes; var value=that.val(); for(var i=0,attr;attr=attrs[i];i++){ if(attr.name=='cc-email'){ if(/^[w-]+(.[w-]+)*@[w-]+(.[w-]+)+$/.test(value)){ hidError(that,attr.value) }else{ showError(that,attr.value); break; } }else if(attr.name=='cc-phone'){ if(/d{11}/.test(value)){ hidError(that,attr.value); }else { showError(that,attr.value); break; } }else if(attr.name=='cc-max'){ if(value.length>attr.value){ showError(that,that.attr(attr.name+'-error')); break; }else { hidError(that,that.attr(attr.name+'-error')); } }else if(attr.name=='cc-min'){ if(value.length<attr.value){ showError(that,that.attr(attr.name+'-error')); break; }else { hidError(that,that.attr(attr.name+'-error')); } }else if(attr.name=='cc-regex'){ var patten=new RegExp(attr.value); if(patten.test(value)){ hidError(that,that.attr(attr.name+'-error')); }else { showError(that,that.attr(attr.name+'-error')); break; } }else if(attr.name=='cc-require'){ if(!value||value.trim()==''){ showError(that,attr.value); break; }else { hidError(that,attr.value); } } } } function checkForm(form) { form.find('input,textarea').each(function () { checkInput(this); }); } element.find('input,textarea').focus(function (e) { var that=this; first=false; checkInterval=setInterval(function () { checkInput(that); },500); }); element.find('input,textarea').blur(function (e) { first=false; checkInput(this); clearInterval(checkInterval); }); element.find('[cc-submit]').click(function (e) { first=false; clearInterval(checkInterval); checkForm(element); }); //预检测时不显示错误提示 checkForm(element); } } }]);

对应的需要一点点CSS代码，下面是用LESS写的

.help-block { * { &:not(.cc-show) { display: none; } } }

对应的CSS就是

.help-block *:not(.cc-show) { display: none; }

用法1

<div> <h1>test</h1> <form cc-form="form1"> <div> <input type="password" ng-model="user.password" cc-max="16" cc-max-error="1" cc-min="6" cc-min-error="2"> <div> <p cc-error-1>密码长度不能超过16位</p> <p cc-error-2>密码最短为6</p> </div> </div> <div> <input ng-model="user.phone" cc-regex="d{11}" cc-regex-error="1"> <div> <p cc-error-1>请输入正确的手机号</p> </div> </div> <div> <input ng-model="user.fax" cc-require="1"> <div> <p cc-error-1>请输入传真</p> </div> </div> <div> <input ng-model="user.email" cc-email="1"> <div> <p cc-error-1>请输入正确的邮箱</p> </div> </div> <button type="button" cc-submit>提交</button> </form> </div>

用法2

<form cc-form="form1"> <h3>登录</h3> <div> <div> <input placeholder="手机号" ng-model="user.loginName" name="loginName" cc-regex="d{11}" cc-regex-error="1" cc-require="2"/> </div> </div> <div> <p cc-error-1>请输入正确的手机号</p> <p cc-error-2>请输入手机号</p> </div> <div> <div> <input placeholder="密码" type="password" ng-model="user.password" name="password" cc-require="1"/> </div> </div> <div> <p cc-error-1>请输入密码</p> </div> <div> <div> <input placeholder="验证码" ng-model="user.vcode" name="vcode" cc-require="1"> <img src=""> </div> </div> <div> <p cc-error-1>请输入验证码</p> </div> <div> <label> <input type="checkbox" ng-model="user.rememberPass" ng-true-value="true" ng-false-value="false">自动登录 </label> </div> <p>没有账号？<a href="#/main/register">立即注册</a></p> <button type="button" ng-click="login(1)" cc-submit>登录</button> </form>

如此简洁明了

以上就是小编为大家带来的基于angularJS的表单验证指令介绍全部内容了，希望大家多多支持查字典教程网~