我将一个脚本标记以及一堆其他html附加到我当前的文档中,从ajax调用中检索。由于某种原因,脚本没有运行
//Response handling function
function(responseText){
document.getElementById('reportContainer').insertAdjacentHTML('afterbegin',responseText);
}
responseText
内容的一个例子:
<h2>You are <em class="won">victorious</em>!</h2>
<h3>Earnings</h3>
...
<script>
alert('dgd');
</script>
所有html都会应用到文档中,包括脚本,但它没有运行,我没有弹出这个警告。可能导致这种情况的原因是什么?
答案 0 :(得分:1)
检查以下代码段并将该功能称为
var newEle = document.querySelector("#reportContainer");
exec_body_scripts(newEle);
功能
exec_body_scripts = function(body_el) {
// Finds and executes scripts in a newly added element's body.
// Needed since innerHTML does not run scripts.
//
// Argument body_el is an element in the dom.
function nodeName(elem, name) {
return elem.nodeName && elem.nodeName.toUpperCase() ===
name.toUpperCase();
};
function evalScript(elem) {
var data = (elem.text || elem.textContent || elem.innerHTML || "" ),
head = document.getElementsByTagName("head")[0] ||
document.documentElement,
script = document.createElement("script");
script.type = "text/javascript";
try {
// doesn't work on ie...
script.appendChild(document.createTextNode(data));
} catch(e) {
// IE has funky script nodes
script.text = data;
}
head.insertBefore(script, head.firstChild);
head.removeChild(script);
};
// main section of function
var scripts = [],
script,
children_nodes = body_el.childNodes,
child,
i;
for (i = 0; children_nodes[i]; i++) {
child = children_nodes[i];
if (nodeName(child, "script" ) &&
(!child.type || child.type.toLowerCase() === "text/javascript")) {
scripts.push(child);
}
}
for (i = 0; scripts[i]; i++) {
script = scripts[i];
if (script.parentNode) {script.parentNode.removeChild(script);}
evalScript(scripts[i]);
}
};
答案 1 :(得分:0)
当您以这种方式将其推入DOM时,它将不会执行。你能用jQuery吗?它会执行它:
$('#reportContainer').append('<script type="text/javascript">alert(123);</script>');
答案 2 :(得分:0)
从ajax调用中获得的是纯文本或XML,可以作为HTML片段插入到DOM中,但出于安全原因,明确禁止所有javascript代码。有很多选择可以解决这种情况 - 从在responseText中提取部分和使用eval方法(不推荐,不良实践)到使用jQuery.load方法。