AJAX\uff1a\u8ba9js\u8bfb\u53d6\u670d\u52a1\u5668\u7684\u6570\u636e<\/p>\n
\u4f7f\u7528Ajax<\/p>\n
\u57fa\u7840\uff1a\u8bf7\u6c42\u5e76\u663e\u793a\u9759\u6001TXT\u6587\u4ef6<\/p>\n
\u6ce8\u610f\u5b57\u7b26\u96c6\u7f16\u7801\u7684\u4e00\u81f4<\/p>\n
\u7f13\u5b58\u548c\u963b\u6b62\u7f13\u5b58\u7684\u95ee\u9898\uff08\u8fd9\u53ea\u662f\u4e00\u79cd\u65b9\u6cd5\uff09\uff1a\u2018xxx.txt?t=\u2019Data().getTime()<\/p>\n
AJAX\u8bfb\u53d6\u7684\u4efb\u4f55\u4e1c\u897f\u90fd\u662f\u4ee5\u5b57\u7b26\u4e32\u7684\u5f62\u5f0f\u5b58\u5728
\nHTTP\u8bf7\u6c42\u7684\u65b9\u6cd5\uff1a<\/p>\n
get\u65b9\u5f0f\uff0c\u5c06\u5185\u5bb9\u653e\u5230url\u91cc\uff0c\u8ddf\u968furi\u4e00\u8d77\u901a\u8fc7\u7f51\u5740\u4f20\u9012<\/p>\n
\u5bb9\u91cf\u5c0f\uff0c\u56e0\u4e3a\u7f51\u5740\u9650\u5236\uff0c\u4e0d\u9002\u5408\u4f20\u9012\u5927\u6570\u636e<\/p>\n
\u5b89\u5168\u6027\u975e\u5e38\u5dee<\/p>\n
\u6709\u7f13\u5b58<\/p>\n
\u9002\u5408\u7528\u6765\u56de\u6765\u83b7\u53d6\u6570\u636e\uff08\u5982\u6d4f\u89c8\u5e16\u5b50\uff09<\/p>\n
post\u65b9\u5f0f\uff0c\u901a\u8fc7http\u7684content\uff0c\u4e0d\u901a\u8fc7\u7f51\u5740<\/p>\n
\u5bb9\u91cf\u5927\uff082G\uff09<\/p>\n
\u5b89\u5168\u6027\u76f8\u5bf9\u597d\u4e00\u70b9\uff0c\u771f\u6b63\u5b89\u5168\u8d70\uff08HTTPS\uff09<\/p>\n
\u6ca1\u6709\u7f13\u5b58<\/p>\n
\u7528\u4e8e\u4e0a\u4f20\u6570\u636e\uff08\u5982\u7528\u6237\u6ce8\u518c\uff09<\/p>\n
AJAX\uff1a(\u7c7b\u6bd4\u6253\u7535\u8bdd)<\/p>\n
1\u3001\u521b\u5efaAJAX\u5bf9\u8c61 \u624b\u673a XMLHttpRequest()\u548cActiveXObject(“Microsoft.XMLHTTP”)\uff08IE\u4e0b\u7528\u5230\uff09<\/p>\n
2\u3001\u8fde\u63a5\u5230\u670d\u52a1\u5668 \u62e8\u53f7 open<\/p>\n
3\u3001\u53d1\u9001\u8bf7\u6c42 \u8bf4 send<\/p>\n
4\u3001\u63a5\u53d7\u8fd4\u56de\u503c \u542c oAjax.onreadystatechange oAjax.readyState<\/p>\n
oAjax.readyState==0\/1\/2\/3\/4 \u6d4f\u89c8\u5668\u548c\u670d\u52a1\u5668\u8fdb\u884c\u5230\u54ea\u4e00\u6b65\u4e86<\/p>\n
0 \u672a\u521d\u59cb\u5316\uff0c\u8fd8\u6ca1\u6709\u8c03\u7528open\uff08\uff09\u65b9\u6cd5<\/p>\n
1 \uff08\u8f7d\u5165\uff09\u5df2\u7ecf\u8c03\u7528open\uff08\uff09\u65b9\u6cd5\uff0c\u6b63\u5728\u53d1\u9001\u8bf7\u6c42<\/p>\n
2 \uff08\u8f7d\u5165\u5b8c\u6210\uff09send\uff08\uff09\u65b9\u6cd5\u5b8c\u6210\uff0c\u5df2\u7ecf\u6536\u5230\u5168\u90e8\u54cd\u5e94<\/p>\n
3 \uff08\u89e3\u6790\uff09\u6b63\u5728\u89e3\u6790\u54cd\u5e94\u5185\u5bb9<\/p>\n
4 \uff08\u5b8c\u6210\uff09\u54cd\u5e94\u5185\u5bb9\u89e3\u6790\u5b8c\u6210\uff0c\u53ef\u4ee5\u5728\u5ba2\u6237\u7aef\u8c03\u7528\u4e86
\nstatue\u5c5e\u6027\uff0c\u8bf7\u6c42\u7ed3\u679c\uff0c\u5224\u65ad\u6210\u529f\u8fd8\u662f\u5931\u8d25 \u4e00\u822c\u6210\u529f200\uff0c\u5931\u8d25not found404<\/p>\n
responseText \u8fd4\u56de\u6587\u4ef6\u5185\u5bb9
\n\u540c\u6b65 \u4e8b\u60c5\u4e00\u4ef6\u4e00\u4ef6\u6765 false<\/p>\n
\u5f02\u6b65 \u591a\u4e2a\u4e8b\u60c5\u53ef\u4ee5\u4e00\u8d77\u6765\uff08ajax\u5929\u751f\u5c31\u662f\u7528\u6765\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\u7684\uff09true
\nAJAX\u6570\u636e\u7c7b\u578b<\/p>\n
\u4e2d\u6587\u4e00\u5b9a\u8981\u7528UTF-8<\/p>\n
XML\u548cjson\u6570\u636e\u7c7b\u578b\uff0c\u540c\u7b49\u6570\u636eXML\u8981\u5927\u5f88\u591a\uff0c\u5df2\u7ecf\u6dd8\u6c70\u4e86\u51e0\u4e4e<\/p>\n
\u4e00\u5b9a\u8981\u7edf\u4e00\u5b57\u7b26\u96c6\u4e00\u822cUTF-8<\/p>\n
\u7528js\u5b9e\u73b0AJAX\u7684\u4ee3\u7801<\/p>\n
\/\/\u8fd9\u91ccurl\u672a\u5bf9\u5e94\u7684\u6587\u4ef6\u540d\uff0cfnSucc\u548cfnFaild\u4e3a\u81ea\u5df1\u7f16\u5199\u7684\u7684\u51fd\u6570<\/p>\n
function ajax(url, fnSucc, fnFaild)<\/p>\n
{<\/p>\n
\/\/1.\u521b\u5efaAjax\u5bf9\u8c61<\/p>\n
if(window.XMLHttpRequest)<\/p>\n
{<\/p>\n
var oAjax=new XMLHttpRequest();<\/p>\n
}<\/p>\n
else<\/p>\n
{<\/p>\n
\/\/\u517c\u5bb9IE<\/p>\n
var oAjax=new ActiveXObject(“Microsoft.XMLHTTP”);<\/p>\n
}<\/p>\n
<\/p>\n
\/\/2.\u8fde\u63a5\u670d\u52a1\u5668\uff08\u6253\u5f00\u548c\u670d\u52a1\u5668\u7684\u8fde\u63a5\uff09<\/p>\n
oAjax.open(‘GET’, url, true);<\/p>\n
<\/p>\n
<\/p>\n
\/\/3.\u53d1\u9001<\/p>\n
oAjax.send();<\/p>\n
<\/p>\n
\/\/4.\u63a5\u6536<\/p>\n
oAjax.onreadystatechange=function ()<\/p>\n
{<\/p>\n
if(oAjax.readyState==4)<\/p>\n
{<\/p>\n
if(oAjax.status==200)<\/p>\n
{<\/p>\n
\/\/alert(‘\u6210\u529f\u4e86\uff1a’+oAjax.responseText);<\/p>\n
fnSucc(oAjax.responseText);<\/p>\n
}<\/p>\n
else<\/p>\n
{<\/p>\n
\/\/alert(‘\u5931\u8d25\u4e86’);<\/p>\n
if(fnFaild)<\/p>\n
{<\/p>\n
fnFaild();<\/p>\n
}<\/p>\n
}<\/p>\n
}<\/p>\n
};<\/p>\n
}<\/p>\n
\u6b22\u8fce\u5206\u4eab\u672c\u6587\uff0c\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u51fa\u5904\uff1a\u524d\u7aefABC<\/a> » js\u5b66\u4e60\u4e4bAJAX<\/a><\/p>","protected":false},"excerpt":{"rendered":" AJAX\uff1a\u8ba9js\u8bfb\u53d6\u670d\u52a1\u5668\u7684\u6570\u636e \u4f7f\u7528Ajax \u57fa\u7840\uff1a\u8bf7\u6c42\u5e76\u663e\u793a\u9759\u6001TXT\u6587\u4ef6 \u6ce8\u610f\u5b57\u7b26\u96c6\u7f16\u7801\u7684\u4e00\u81f4 \u7f13\u5b58\u548c\u963b\u6b62\u7f13\u5b58\u7684\u95ee\u9898\uff08\u8fd9\u53ea\u662f\u4e00\u79cd\u65b9\u6cd5\uff09\uff1a\u2018xxx.txt?t=\u2019Data().getTime() […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1890"}],"collection":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1890"}],"version-history":[{"count":1,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1890\/revisions"}],"predecessor-version":[{"id":1891,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1890\/revisions\/1891"}],"wp:attachment":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1890"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}