[英]How can I pass input type value or id from one jsp to another jsp page
[英]How can I pass a value from a jsp page to a javascript page?
我的 jsp 文件中有此代碼:
int hours=5;
int minutes=3;
int seconds=2;
<h3 id="c_down">TIME LEFT <br> <%=hours%> : <%=minutes%> : <%=seconds%> </h3>
<script src="countdown.js"></script>
這是我的 javascript 文件(countdown.js):
let minutes=
let seconds =
let hours=
let timming_onSeconds=seconds+minutes*60+hours*3600;
const cd=document.getElementById('c_down');
setInterval(uptade_countdown, 1000);
function uptade_countdown() {
hours=Math.floor(timming_onSeconds/3600);
minutes=Math.floor((timming_onSeconds%3600)/60);
seconds=(timming_onSeconds%3600)%60;
seconds=seconds <= 9 ? "0"+seconds : seconds;
minutes=minutes <= 9 ? "0"+minutes : minutes;
hours=hours <= 9 ? "0"+hours : hours;
cd.innerHTML = `TIME LEFT <br> ${hours} : ${minutes} : ${seconds}`;
timming_onSeconds--;
}
如何將 jsp 文件中的秒、分鍾、小時的值轉換為 javascript 文件中的秒、分鍾、小時?
您可以使用內聯腳本設置變量:
<h3 id="c_down">TIME LEFT <br> <%=hours%> : <%=minutes%> : <%=seconds%> </h3>
<script>
let minutes = <%=minutes%>;
let seconds = <%=seconds%>;
let hours = <%=hours%>;
</script>
<script src="countdown.js"></script>
所以從countdown.js
中刪除這個塊:
let minutes=
let seconds =
let hours=
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