zoukankan      html  css  js  c++  java
  • 最初的ajax案例

    ----------------------原始的ajax:
     function guo() {
                var xhr
                if (XMLHttpRequest) {
                    xhr = new XMLHttpRequest();
                }
                else {
                    xhr = ActiveXObject("XMLHttpRequest");
                }
                //ie5 和ie6是activeobject;
                //请求方式,地址,是否异步;
                xhr.open("get", "../Handler/test.ashx", true);
                //发送请求
                xhr.send();
                 //readystate:0未初始化;1,已打开,2,已发送,3正在接受,4,已加载
                xhr.onreadystatechange = function (data) {
                    if (xhr.readyState == 4) {
                        alert(xhr.responseText);
                    }
                };
            }
    --------post方式
     function guo() {
                var xhr
                if (XMLHttpRequest) {
                    xhr = new XMLHttpRequest();
                }
                else {
                    xhr = ActiveXObject("XMLHttpRequest");
                }
                //ie5 和ie6是activeobject;
                //请求方式,地址,是否异步;
                //xhr.open("get", "../Handler/test.ashx", true);
                xhr.open("post", "../Handler/test.ashx", true);
                //发送请求
                //设置请求的头部;
                xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
                //xhr.send();
                xhr.send("a=3&b=4");
                xhr.onreadystatechange = function (data) {
                    if (xhr.readyState == 4) {
                        alert(xhr.responseText);
                    }
                };
            }

  • 相关阅读:
    web test Grinder / nGrinder / ngrinder / gor / tcpcopy
    【python学习】之五、可调用对象
    【C/C++学习】之五、dynamic_cast
    【网络编程】之一、初识WinSocket
    【啊哈!算法】之四、选择排序
    【IOS学习】之二、虚拟机MAC Lion 10.7 下问题集锦和xcode的安装
    【网络编程】之二、socket API学习
    【C/C++学习】之六、reinterpret_cast
    【啊哈!算法】之五、归并排序
    【IOS学习】之一、VM8下安装mac lion10.7 黑苹果之续
  • 原文地址:https://www.cnblogs.com/guozefeng/p/3467467.html
Copyright © 2011-2022 走看看