通过ajax发送长字符串不起作用 [英] Sending a long string through ajax doesn't work

问题描述

我正在尝试通过ajax向php页面发送一个长字符串，该字符串将对其进行处理并返回我需要的内容，我认为它超出了GET的容量或类似的容量！但由于某种原因它不起作用

I'm trying to send a long string through ajax to php page that will process it and return what I need, I think that It exceeds GET capacity or something like that! but for some reason it doesn't work

var string = document.getElementById('text').innerHTML; // so long text
var xhr = new XMLHttpRequest();
xhr.open('GET', 'read.php?string=' + string, true);
xhr.send();
xhr.onreadystatechange = function () {
   if (xhr.status == 200 && xhr.readyState == 4) {
    content.innerHTML = xhr.responseText;
   } else {
    content.innerHTML = 'loading';
   }
}

我如何使它起作用！

推荐答案

只需替换:

xhr.open('GET', 'read.php?string=' + string, true);
xhr.send();

使用

var body = "string=" + encodeURIComponent(string);
xhr.open("POST", "read.php", true);
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.setRequestHeader("Content-Length", body.length);
xhr.setRequestHeader("Connection", "close");
xhr.send(body);

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