End-to-End Tracing of Ajax/Java Applications Using DTrace         By Amit Hurvitz, July 2007     Ajax, DTrace and Where They Meet Ajax is an emerging technology, which got a significant boost with the rise of applications like Google Maps. Ajax is in…
With Gradle we can execute Java applications using the JavaExec task or the javaexec() method. If we want to run Java code from an external dependency we must first pull in the dependency with the Java application code. The best way to do this is to…
AJAX即“Asynchronous Javascript And XML”(异步JavaScript和XML) 是一种基于浏览器的XMLHttpRequest对象实现的创建交互式网页应用的网页开发技术. 用JS创建XMLHttpRequest对象并调用其方法实现基本的Ajax请求: xmlhttp = new XMLHttpRequest(); //创建XMLHttpRequest对象 xmlhttp.onreadystatechange = f; //设置请求完成后的回调函数 xmlhttp…
js代码 //利用formdata上传 var dataUrl = $('#canvas').getDataUrl(); var img = $('<img>').attr('src', dataUrl); //显示图片 var oMyForm = new FormData(); //创建formdata var blobBin = dataURLtoBlob(dataUrl); //base64转换blob oMyForm.append("blobObject", blo…
1. 在form表单的onload属性里的方法无法执行? 若忘记了在<%=request.getSession().getAttribute("userName")%>两边添加单引号,会造成test方法无法执行. <html> <head> </head> <body> <form onload="test('<%=request.getSession().getAttribute("userN…
之前有在网上找ajax上传图片的资料,大部分的人写得都是用jQuery,但是在这里用JQuery就大才小用了,所以我就自己写了,先上图. 由上图,首先点击上面的选择文件,在选择图片之后,将会自动上传图片到服务器,并且返回图片名字和图片在服务器的路径,然后在页面显示文件名字和图片. 源码:http://pan.baidu.com/s/1kVcDmMr React中: import React from 'react'; import Http from './http' const URL = '…
1.添加依赖 <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt</artifactId> <version>0.6.0</version> </dependency> <dependency> <groupId>com.thetransactioncompany</groupId> <art…
html5图片上传[文件上传]在网上找了很多资料,主要也就2种 1.from表单提交的方式 <form action="pushUserIcon" method="post" enctype="multipart/form-data"> <table> <tr> <td width="50" align=left>图片:</td> <td><inpu…
技术体系:html5(formdata) + java + servlet3.0+maven + tomcat7 <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>大文件切割上传</title> <style> #wrap{width:600px; height:400px; border:1px solid #ccc; margin…
HTTP is the way modern applications network. It’s how we exchange data & media. Doing HTTP efficiently makes your stuff load faster and saves bandwidth. OkHttp is an HTTP client that’s efficient by default: HTTP/2 support allows all requests to the s…