导依赖
<!-- https://mvnrepository.com/artifact/org.quartz-scheduler/quartz --> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>2.2.3</version> </dependency>配置定时任务类
package com.atguigu.scw.portal.service; import org.springframework.stereotype.Service; @Service public class ExampleJob { public void hello() { System.out.println("定时任务触发===========>"); } }配置定时任务
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context/spring-context-4.3.xsd"> <!-- <bean></bean> --> <!--配置定时任务触发类和方法 --> <bean> <property ref="exampleJob" /> <property value="hello" /> </bean> <!--配置触发器，指定何时触发 --> <bean> <property ref="jobDetail" /> <!-- run every morning at 6 AM --> <property value="*/5 * * * * ?" /> </bean> <!--配置定时任务调用哪一个触发器 --> <bean> <property> <list> <ref bean="cronTrigger" /> </list> </property> </bean> </beans>cron表达式使用
每隔5秒执行一次：*/5 * * * * ? 每隔1分钟执行一次：0 */1 * * * ? 每天23点执行一次：0 0 23 * * ? 每天凌晨1点执行一次：0 0 1 * * ? 每月1号凌晨1点执行一次：0 0 1 1 * ? 每月最后一天23点执行一次：0 0 23 L * ? 每周星期天凌晨1点实行一次：0 0 1 ? * L 在26分、29分、33分执行一次：0 26,29,33 * * * ? 每天的0点、13点、18点、21点都执行一次：0 0 0,13,18,21 * * ?参考
文件上传进度条
ajax异步提交表单$("#subBtn").on('click', function() { return false}是js对象的机制
<button type="submit">Submit</button>点击按钮直接提交是浏览器的机制
文件上传
表单直接提交action='${ctp}/member/upload' method='post' enctype="multipart/form-data"
<form action='${ctp}/member/upload' method='post' enctype="multipart/form-data"> <div> <input type="file"> </div> <div> <div role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"> 60%</div> </div> <button type="submit">Submit</button> </form>ajax提交type : "post",contentType : false,processData : false
进度条:获取myXhr = $.ajaxSettings.xhr()对象并返回
<form> <div> <input type="file"> </div> <div> <div role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">0%</div> </div> <button type="submit">Submit</button> </form> <script type="text/javascript"> $("#subBtn").on('click', function() { var fd = new FormData($("#submitForm")[0]); $.ajax({ url : "${ctp}/member/upload", data : fd, type : "post", contentType : false, processData : false, //获取ajaxSettings中的xhr对象，为它的upload属性绑定progress事件的处理函数 xhr : function() { myXhr = $.ajaxSettings.xhr() //检查upload属性是否存在 if (myXhr.upload) { //绑定progress事件的回调函数 myXhr.upload.addEventListener('progress', progressHandlingFunction, false) } //xhr对象返回给jQuery使用 return myXhr; }, success : function(result) { console.log("result==========>", result) }, error : function(e) { console.log('e=========>', e) } }) return false }) var progressHandlingFunction = function(e) { var curr = e.loaded var total = e.total process = curr / total * 100 console.log('上传进度============>', process) $('.progress').attr('style', 'display:show;') $('.progress-bar').html(process + '%') $('.progress-bar').attr('style', 'width:' + process + '%;') } </script>图片预览
$("#ad_file_input").on('change', function(event) { $(this).empty() $(this).parent('.form-group').next('.form-group').find('.imgdiv').empty() fileList = event.currentTarget.files log('fileList==============>', fileList) var URL = window.URL || window.webkitURL var imgURL //遍历上传的文件进行显示 $.each(fileList, function (index, item) { //创建一个临时的url地址 imgURL = URL.createObjectURL(item) log('this=========>',this) log('item==========>',item) $('#ad_file_input').parent(".form-group").next(".form-group").find(".imgdiv").append("<img src='"http://www.likecs.com/+imgURL+"'/>").append('<p>'+item.name+'<p>') }) })