Ajax in the U.S. has not used mock consider how easy the ajax request object XmlHttp the HA!
Ha ha, ha us to simulate, it is the original teacher training to make students write the code, and now allow others to criticize U.S. Ha!
Do not know how to say, or download code to see everyone, the implementation of it ha!
js version: ie directly to the Executive:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
</head>
<body>
</body>
<script>
function XmlHttp() {
this.readyState = 0;
this.serverStatus = -1;
}
XmlHttp.prototype.onreadyStatechange = function() {
};
XmlHttp.prototype.open = function(method, url, asynchronous) {
while (true) {
var vNum = Math.random();
vNum = Math.round(vNum * 2);
var senType = "异步";
if (!asynchronous) {
senType = "同步";
}
alert(senType + "方式到服务器" + url + " " + method + "请求");
if (vNum == 0) {
this.serverStatus = 500;
this.onreadyStatechange()
break;
}
if (vNum == 1) {
this.serverStatus = 404;
this.onreadyStatechange()
break;
}
if (vNum == 2) {
this.serverStatus = 200;
this.onreadyStatechange()
break;
}
}
};
var myXmlHttp = new XmlHttp();
myXmlHttp.onreadyStatechange = myCallBack;
myXmlHttp.open(get, "www.163.com", true);
function myCallBack() {
if (myXmlHttp.serverStatus == 500) {
alert(errcode=500 服务器不可用);
}
if (myXmlHttp.serverStatus == 404) {
alert(errcode=404 URL资源不存在);
}
if (myXmlHttp.serverStatus == 200) {
alert( areturn success);
}
}
</script>
</html>
java版本:
核心类介绍:
/*annoation用来标注客户端的回调方法*/
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface AjaxCallBack {
}
/*回调的实现处理类*/
package com.bobo.mockajaxcallback.r5;
import java.lang.reflect.Method;
/**
* Created by IntelliJ IDEA.
* User: xingbo.xu
* Date: 2007-11-10
* Time: 19:28:57
* QQ群:77082582
*/
public class CallBackClient implements Runnable {
private String onreadyStateChage;
public CallBackClient(String onreadyStateChage) {
this.onreadyStateChage = onreadyStateChage;
}
public void run() {
doClientMethod();
}
private void doClientMethod() {
// String classPath = onreadyStateChage.substring(0, onreadyStateChage.indexOf("|"));
// String methodName = onreadyStateChage.substring(onreadyStateChage.indexOf("|") + 1);
// System.out.println(classPath);
// System.out.println(methodName);
String classPath = onreadyStateChage;
try {
Class clazz = Class.forName(classPath);
Method[] methods = clazz.getDeclaredMethods();
Method ajaxCallBckMethod = null;
for (Method method : methods) {
if (method.isAnnotationPresent(AjaxCallBack.class)) {
ajaxCallBckMethod = method;
}
}
if (ajaxCallBckMethod != null) {
ajaxCallBckMethod.invoke(clazz.newInstance());
} else {
System.out.println("The class -->" + onreadyStateChage + " no @AjaxCallBack");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
/*mock ajax core object */
package com.bobo.mockajaxcallback.r5;
/**
* Created by IntelliJ IDEA.
* User: xingbo.xu
* Date: 2007-11-10
* Time: 19:28:57
* QQ群:77082582
*/
public class XMLHttpRequest {
/**
* 回调指针
*/
public String onreadyStateChage;
public int readyState;
public int status;
public String responseTest;
public CallBackClient client;
private boolean asynchronous;
private XMLHttpRequest() {
}
public static XMLHttpRequest createXMLHttpRequest() {
return new XMLHttpRequest();
}
/**
* @param method get or post
* @param url
* @param asynchronous true
*/
public void open(String method, String url, boolean asynchronous) {
this.asynchronous = asynchronous;
sleep(2000);
if (onreadyStateChage == null || onreadyStateChage.length() < 1) {
setReadyState(0);
System.out.println("没有初始化");
return;
}
setReadyState(1);
sleep(2000);
System.out.println("正在加载");
setReadyState(2);
sleep(2000);
System.out.println("已加载");
setReadyState(3);
sleep(2000);
System.out.println("交互中");
sleep(2000);
responseTest = "hello Ajax";
status = 200;
setReadyState(4);
System.out.println("完成");
if (!asynchronous) {
doClient();
}
}
public void setReadyState(int readyState) {
// System.out.println("setReadyState");
this.readyState = readyState;
if (asynchronous) {
doClient();
}
}
private void doClient() {
if (client == null)
client = new CallBackClient(onreadyStateChage);
Thread t = new Thread(client);
t.start();
}
private void sleep(int mSecond) {
try {
Thread.currentThread().sleep(mSecond);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
/*客户端测试类*/
package com.bobo.mockajaxcallback.r5;
/**
* Created by IntelliJ IDEA.
* User: xingbo.xu
* Date: 2007-11-10
* Time: 19:28:57
* QQ群:77082582
*/
public class Client {
static XMLHttpRequest xmlHttpRequest;
public static void main(String[] args) {
xmlHttpRequest = XMLHttpRequest.createXMLHttpRequest();
xmlHttpRequest.onreadyStateChage = "com.bobo.mockajaxcallback.r5.Client";
xmlHttpRequest.open("", "", true);
System.out.println("-----------");
xmlHttpRequest.open("", "", false);
}
@AjaxCallBack
public void clientMethod() {
// System.out.println("clientMethod");
if (xmlHttpRequest.readyState == 0) {
System.out.println("client 0");
}
if (xmlHttpRequest.readyState == 1) {
System.out.println("client 1");
}
if (xmlHttpRequest.readyState == 2) {
System.out.println("client 2");
}
if (xmlHttpRequest.readyState == 3) {
System.out.println("client 3");
}
if (xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 200) {
System.out.println(xmlHttpRequest.responseTest);
}
}
}
Original Source:
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