我在jsp頁面中使用jsp創建web項目&我在網頁上播放視頻時聲明視頻標記,然後使用javaScript獲取播放位置,但播放位置值未在servlet中傳遞。 當我運行web項目時,只運行Index.jsp,但值不傳遞給servlet。如何在servlet中播放視頻時獲取javaScript變量值
請幫助我們解決這個問題
這是我的代碼:
的index.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<html>
<body>
<video id="myVideo" width="320" height="176" controls>
<source src="mov_bbb.mp4" type="video/mp4">
<source src="mov_bbb.ogg" type="video/ogg">
Your browser does not support HTML5 video.
</video>
<p>Playback position: <span id="demo"></span></p>
<script>
// Get the video element with id="myVideo"
var vid = document.getElementById("myVideo");
vid.ontimeupdate = function() {myFunction()};
function myFunction() {
// Display the current position of the video in a <p> element with id="demo"
var time=document.getElementById("demo").innerHTML = vid.currentTime;
$.ajax({
url:'http://localhost:8084/demotime/NewServlet',
data:{
myPost:time
},
type:'POST'
});
}
</script>
<p>Video courtesy of <a href="https://www.bigbuckbunny.org/" target="_blank">Big Buck Bunny</a>.</p>
</body>
</html>
這是Servlet的文件
package servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/**
*
* @author Administrator
*/
@WebServlet(name ="NewServlet")
public class NewServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
try {
HttpSession session = request.getSession();
String time="";
if(time!=null){
time=request.getParameter("myPost");
out.print(time);
}else{
System.out.println("time is null");
}
} catch (Exception e) {
}
{
}
}
}
這是web.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
<servlet>
<servlet-name>NewServlet</servlet-name>
<servlet-class>servlet.NewServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>NewServlet</servlet-name>
<url-pattern>/NewServlet</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
你爲什麼不嘗試用http:// localhost:8084/demotime/NewServlet?myPost =「+ time替換'url:'http:// localhost:8084/demotime/NewServlet'。我的意思是與URL傳遞時間一起作爲查詢參數,其中mypost是參數,您可以從servlet訪問 –