Ajax 给 XMLHttpReq.onreadystatechange传递参数
程序员文章站
2022-06-29 12:33:41
ajax 给 xmlhttpreq.onreadystatechange传递参数 通过： xmlhttp.onreadystatechange= function(){xx...
ajax 给 xmlhttpreq.onreadystatechange传递参数
通过：
xmlhttp.onreadystatechange= function(){xx(123)};
or xmlhttp.onreadystatechange= new function("xx(123)"); 就可以了。
ajax 给 xmlhttpreq.onreadystatechange传递参数
通过：
xmlhttp.onreadystatechange= function(){xx(123)};
or
xmlhttp.onreadystatechange= new function("xx(123)");
就可以了。
m=document.getelementsbyname("text8");
v=m[i];
xmlhttpreq.onreadystatechange=function(){proce(v)};
----------------------------------------------
function proce(v)
{
if(xmlhttpreq.readystate==4)
{
if(xmlhttpreq.status==200)
{
var res=xmlhttpreq.responsexml.getelementsbytagname("content")[0].firstchild.data;
v.value=res;
}
else
{
v.value='....';
}
}
}
一个小测试的例子：
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title>test ajax</title>
<mce:script language="javascript"><!--
function getxmlhttprequest() {
var xmlhttprequest;
try
{
xmlhttprequest=new xmlhttprequest();
}
catch (e)
{
try
{
xmlhttprequest=new activexobject("microsoft.xmlhttp");
}
catch (e)
{
try
{
xmlhttprequest=new activexobjec("msxml2.xmlhttp");
}
catch (e)
{
throw new error('unable to create xmlhttprequest.')
}
}
}
return xmlhttprequest;
}
/*
function test() {
var xhr = getxmlhttprequest();
var url="http://211.87.235.108:5000/sensor.xml";
xhr.open("get",url);
xhr.send(null);
xhr.onreadystatechange = function(){
if(4==xhr.readystate)
{
if(200==xhr.status) {
//var xmldoc=xmlhttprequest.responsexml;
var xmldoc=xhr.responsetext;
document.getelementbyid("disp").innerhtml=xmldoc;
}
else {
//alert(xhr.status);
}
}
};
xhr.onstatechange = function() {
handlexmlhttprequest(xhr) ;
};
}
*/
function handlexmlhttprequest( xmlhttprequest) {
if(4==xmlhttprequest.readystate)
{
if(200==xmlhttprequest.status){
//var xmldoc=xmlhttprequest.responsexml;
var xmldoc=xmlhttprequest.responsetext;
document.getelementbyid("disp").innerhtml=xmldoc;
}
else {
alert(xmlhttprequest.status);
}
}
}
function doxmlhttprequest() {
var xhr = getxmlhttprequest();
var url="http://localhost:5000/sensor.xml";
xhr.open("get",url);
xhr.send(null);
xhr.onreadystatechange =function (){
handlexmlhttprequest(xhr);
};
}
function myrefresh() {
window.location.reload();
}
settimeout('myrefresh()',1000); //指定1秒刷新一次
// --></mce:script>
</head>
<mce:style><!--
body {font-size:12px;}
--></mce:style><style mce_bogus="1"> body {font-size:12px;}</style>
<body onload="doxmlhttprequest()">
<div id="disp">
</div>
</body>
</html>
用例2：
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title> my documents </title>
<mce:script language="javascript"><!--
function getxmlhttprequest() {
var xmlhttprequest;
try
{
xmlhttprequest=new xmlhttprequest();
}
catch (e)
{
try
{
xmlhttprequest=new activexobject("microsoft.xmlhttp");
}
catch (e)
{
try
{
xmlhttprequest=new activexobjec("msxml2.xmlhttp");
}
catch (e)
{
throw new error('unable to create xmlhttprequest.')
}
}
}
return xmlhttprequest;
}
function test() {
var xhr = getxmlhttprequest();
var url="http://211.87.235.108:5000/sensor.xml";
xhr.open("get",url);
xhr.send(null);
xhr.onreadystatechange = function(){
if(4==xhr.readystate)
{
if(200==xhr.status) {
//var xmldoc=xmlhttprequest.responsexml;
var xmldoc=xhr.responsetext;
document.getelementbyid("disp").innerhtml=xmldoc;
}
else {
//alert(xhr.status);
}
}
};
}
/*
function handlexmlhttprequest( xmlhttprequest) {
alert(xmlhttprequest + 2);
if(4==xmlhttprequest.readystate)
{
if(200==xmlhttprequest.status){
//var xmldoc=xmlhttprequest.responsexml;
var xmldoc=xmlhttprequest.responsetext;
document.getelementbyid("disp").innerhtml=xmldoc;
}
else {
alert(xmlhttprequest.status);
}
}
}
function doxmlhttprequest() {
var xhr = getxmlhttprequest();
var url="http://211.87.235.108:5000/sensor.xml";
xhr.open("get",url);
xhr.send(null);
xhr.onreadystatechange = handlexmlhttprequest();
}
*/
function myrefresh() {
window.location.reload();
}
// settimeout('myrefresh()',1000); //指定1秒刷新一次
// --></mce:script>
</head>
<mce:style><!--
body {font-size:12px;}
--></mce:style><style mce_bogus="1"> body {font-size:12px;}</style>
<body onload="test()">
<div id="disp">
</div>
</body>
</html>
通过：
xmlhttp.onreadystatechange= function(){xx(123)};
or xmlhttp.onreadystatechange= new function("xx(123)"); 就可以了。
复制代码 代码如下:
ajax 给 xmlhttpreq.onreadystatechange传递参数
通过：
xmlhttp.onreadystatechange= function(){xx(123)};
or
xmlhttp.onreadystatechange= new function("xx(123)");
就可以了。
m=document.getelementsbyname("text8");
v=m[i];
xmlhttpreq.onreadystatechange=function(){proce(v)};
----------------------------------------------
function proce(v)
{
if(xmlhttpreq.readystate==4)
{
if(xmlhttpreq.status==200)
{
var res=xmlhttpreq.responsexml.getelementsbytagname("content")[0].firstchild.data;
v.value=res;
}
else
{
v.value='....';
}
}
}
一个小测试的例子：
复制代码 代码如下:
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title>test ajax</title>
<mce:script language="javascript"><!--
function getxmlhttprequest() {
var xmlhttprequest;
try
{
xmlhttprequest=new xmlhttprequest();
}
catch (e)
{
try
{
xmlhttprequest=new activexobject("microsoft.xmlhttp");
}
catch (e)
{
try
{
xmlhttprequest=new activexobjec("msxml2.xmlhttp");
}
catch (e)
{
throw new error('unable to create xmlhttprequest.')
}
}
}
return xmlhttprequest;
}
/*
function test() {
var xhr = getxmlhttprequest();
var url="http://211.87.235.108:5000/sensor.xml";
xhr.open("get",url);
xhr.send(null);
xhr.onreadystatechange = function(){
if(4==xhr.readystate)
{
if(200==xhr.status) {
//var xmldoc=xmlhttprequest.responsexml;
var xmldoc=xhr.responsetext;
document.getelementbyid("disp").innerhtml=xmldoc;
}
else {
//alert(xhr.status);
}
}
};
xhr.onstatechange = function() {
handlexmlhttprequest(xhr) ;
};
}
*/
function handlexmlhttprequest( xmlhttprequest) {
if(4==xmlhttprequest.readystate)
{
if(200==xmlhttprequest.status){
//var xmldoc=xmlhttprequest.responsexml;
var xmldoc=xmlhttprequest.responsetext;
document.getelementbyid("disp").innerhtml=xmldoc;
}
else {
alert(xmlhttprequest.status);
}
}
}
function doxmlhttprequest() {
var xhr = getxmlhttprequest();
var url="http://localhost:5000/sensor.xml";
xhr.open("get",url);
xhr.send(null);
xhr.onreadystatechange =function (){
handlexmlhttprequest(xhr);
};
}
function myrefresh() {
window.location.reload();
}
settimeout('myrefresh()',1000); //指定1秒刷新一次
// --></mce:script>
</head>
<mce:style><!--
body {font-size:12px;}
--></mce:style><style mce_bogus="1"> body {font-size:12px;}</style>
<body onload="doxmlhttprequest()">
<div id="disp">
</div>
</body>
</html>
用例2：
复制代码 代码如下:
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title> my documents </title>
<mce:script language="javascript"><!--
function getxmlhttprequest() {
var xmlhttprequest;
try
{
xmlhttprequest=new xmlhttprequest();
}
catch (e)
{
try
{
xmlhttprequest=new activexobject("microsoft.xmlhttp");
}
catch (e)
{
try
{
xmlhttprequest=new activexobjec("msxml2.xmlhttp");
}
catch (e)
{
throw new error('unable to create xmlhttprequest.')
}
}
}
return xmlhttprequest;
}
function test() {
var xhr = getxmlhttprequest();
var url="http://211.87.235.108:5000/sensor.xml";
xhr.open("get",url);
xhr.send(null);
xhr.onreadystatechange = function(){
if(4==xhr.readystate)
{
if(200==xhr.status) {
//var xmldoc=xmlhttprequest.responsexml;
var xmldoc=xhr.responsetext;
document.getelementbyid("disp").innerhtml=xmldoc;
}
else {
//alert(xhr.status);
}
}
};
}
/*
function handlexmlhttprequest( xmlhttprequest) {
alert(xmlhttprequest + 2);
if(4==xmlhttprequest.readystate)
{
if(200==xmlhttprequest.status){
//var xmldoc=xmlhttprequest.responsexml;
var xmldoc=xmlhttprequest.responsetext;
document.getelementbyid("disp").innerhtml=xmldoc;
}
else {
alert(xmlhttprequest.status);
}
}
}
function doxmlhttprequest() {
var xhr = getxmlhttprequest();
var url="http://211.87.235.108:5000/sensor.xml";
xhr.open("get",url);
xhr.send(null);
xhr.onreadystatechange = handlexmlhttprequest();
}
*/
function myrefresh() {
window.location.reload();
}
// settimeout('myrefresh()',1000); //指定1秒刷新一次
// --></mce:script>
</head>
<mce:style><!--
body {font-size:12px;}
--></mce:style><style mce_bogus="1"> body {font-size:12px;}</style>
<body onload="test()">
<div id="disp">
</div>
</body>
</html>
上一篇： 教你查看Cisco路由器的配置信息
下一篇： 揭秘：清朝六部长官和总督谁的地位更高？