当我在聊天中发布消息时,它不会让我再次发帖。我相信这是与发送相关的代码:
window.typing = false;
var posted = 0;
var canPost = 1;
var donotrefresh = 0;
document.forms['send'].addEventListener('submit', function (event) {
event.preventDefault();
if (!this.message.value || !canPost) {
return 0;
}
var form = this;
var message = this.message.value;
this.message.value = "";
this.message.focus();
var ajax = new XMLHttpRequest();
posted = 1;
canPost = 0;
chat.refresh();
chat.messages.scrollTop = 0;
ajax.onreadystatechange = function () {
if (ajax.readyState >= 4 && ajax.status == 200) {
if (!ajax.responseText) {
canPost = 1;
posted = 0;
}
}
}
ajax.open("GET", "/chat/ajax.php?req=post&chatmsg=" + encodeURIComponent(message), true);
ajax.send(null);
}, false);
这是我的提交代码:
<form name="send" style="height:100px;width:100%">
<input type="text" name="message" style="width:60%;height:2em;resize:vertical;opacity:0.8;" maxlength="220" placeholder="Your message to send..." required />
<input type="submit" value="Send" style="vertical-align:top;opacity:0.8;" />
</form>
答案 0 :(得分:0)
尝试删除if(!ajax.responseText)
ajax.onreadystatechange = function () {
if (ajax.readyState >= 4 && ajax.status == 200) {
canPost = 1;
posted = 0;
}
}
你需要&#34;发布&#34;变量?看起来这个代码已经不再使用了。在我看来,canPost的目的是同时避免请求。在这里避免这种情况真的有意义吗?