How can i post data from JSP to Servlet through JavaScript

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posted 5 years ago

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Hi,

I've below jsp.

<%@page import="org.bean.UserBean"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@page import="java.util.*"%>
<%@page import="java.text.SimpleDateFormat"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
<script type="text/javascript">
    function enableSubmit() {
        document.getElementById("getCase").disabled = true;
        document.getElementById("submitButton").disabled = false;
    }
    function enableGetCase() {
        document.getElementById("getCase").disabled = false;
        document.getElementById("submitButton").disabled = true;
    }

function dynamicdropdown(listindex) {
        document.getElementById("subcategory").length = 0;
        switch (listindex) {
        case "closed":
            document.getElementById("subcategory").options[0] = new Option(
                    "Please select framework", "");
            document.getElementById("subcategory").options[1] = new Option(
                    "Closed", "Closed");
            document.getElementById("subcategory").options[2] = new Option(
                    "Cash Apps/Financial Processing",
                    "Cash Apps/Financial Processing");

break;
        case "open":
            document.getElementById("subcategory").options[0] = new Option(
                    "Please select framework", "");
            document.getElementById("subcategory").options[1] = new Option(
                    "Waiting For BLUP", "Waiting For BLUP");
            document.getElementById("subcategory").options[2] = new Option(
                    "Waiting for Clarification from Rep",
                    "Waiting for Clarification from Rep");
            document.getElementById("subcategory").options[3] = new Option(
                    "Waiting for Supervisor Assistance",
                    "Waiting for Supervisor Assistance");
            document.getElementById("subcategory").options[4] = new Option(
                    "Need to route the case to Cash Apps/FP",
                    "Need to route the case to Cash Apps/FP");
            document.getElementById("subcategory").options[5] = new Option(
                    "Waiting for Approval", "Waiting for Approval");
            document.getElementById("subcategory").options[6] = new Option(
                    "Send Updated Invoice", "Send Updated Invoice");
            break;
        case "reassigned":
            document.getElementById("subcategory").options[0] = new Option(
                    "Please select framework", "");
            document.getElementById("subcategory").options[1] = new Option(
                    "Assigned to other agent", "Assigned to other agent");
            document.getElementById("subcategory").options[2] = new Option(
                    "Assigned to other queue", "Assigned to other queue");

break;

}
        return true;
    }

var date = Date.parse(new Date());
    function getLastDate() {
        var date = new Date();
        document.getElementById("endTime").value = [ date.getMonth() + 1,
                date.getDate(), date.getFullYear() ].join('/')
                + ' '
                + [ date.getHours(), date.getMinutes(), date.getSeconds() ]
                        .join(':');

document.postFormData.submit();

}
</script>
</head>
<body>
    <form method="post" name="postDataForm" action="PostData">
        <%
            Date date = new Date();
            SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
            String startFormattedDate1 = sdf.format(date);
            Date d1 = sdf.parse(startFormattedDate1);
            date = new Date();
            String startFormattedDate2 = sdf.format(date);
        %>
        <input type="Submit" value="Get Case" name="getCase" id="getCase"
            disabled="disabled" />
        <table>

<tr>
                <td>Case Number</td>
                <td><input id="caseNumber" name="caseNumber" type="text"
                    value="${userBeans[0].getCaseNumber()}" /></td>

<td>Case Owner</td>
                <td><input id="caseOwner" name="caseOwner" type="text"
                    value="${userBeans[0].getCaseOwner()}" /></td>
            </tr>
            <tr>
                <td>Source</td>
                <td><input id="source" name="source" type="text" /></td>
                <td>Status</td>
                <td><input id="status" name="status" type="text"
                    value="${userBeans[0].getStatus()}" /></td>
            </tr>
            <tr>
                <td class="auto-style2">Issue</td>
                <td class="auto-style2"><input id="issue" name="issue"
                    value="${userBeans[0].getIssue()}" type="text" /></td>
                <td class="auto-style2">Reason</td>
                <td class="auto-style2"><input id="reason" name="reason"
                    value="${userBeans[0].getReason()}" type="text" /></td>
            </tr>
            <tr>
                <td>Date/Time Opened</td>
                <td><input id="dateOpened" type="text" name="dateOpened"
                    value="${userBeans[0].getDateOpened()}" /></td>
                <td>Age(Days)</td>
                <td><input id="age" type="text" name="age"
                    value="${userBeans[0].getAge()}" /></td>
            </tr>
            <tr>
                <td>Resolution</td>
                <td><select id="Select1" name="resolution"
                    onchange="javascript: dynamicdropdown(this.options[this.selectedIndex].value);">
                        <option value="" id="">Select</option>
                        <option value="closed" id="closed">Closed</option>
                        <option value="open" id="open">Open</option>
                        <option value="reassigned" id="reassigned">Reassigned</option>
                </select></td>
                <td>Final Status</td>
                <td><select name="finalStatus" id="subcategory">
                        <option value="">Please select framework</option>
                </select></td>
            </tr>
            <tr>
                <td>Start Time</td>
                <td><input id="startTime" type="text" name="startDate"
                    value="<%=startFormattedDate1%>" /></td>
                <td>End Time</td>
                <td><input id="endTime" name="endDate" type="text" /></td>
            </tr>
        </table>
        <input type="button" value="Submit" name="submitButton"
            id="submitButton" onClick="getLastDate()" />
    </form>
</body>
</html>

Here I've 2 questions,

I'm unable to submit my data to database using a button through JavaScript. Using a submit type is good, but here i need to fill a textbox(id = endTime) with date and time when i hit submit. That's why I've used it as a button instead of submit. I thought that the button is not working, but when ever i click on that button the latest time is fetched into textbox(id = endTime).

I need a small pause of say 2-3 seconds after the time is generated in the textbox and then the post should be done.

Please let me know how can i get this and where am i going wrong.

Thanks.

Rakesh Keerthi

Ranch Hand

Posts: 153

posted 5 years ago

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Hi All,

If anyone have such problem, I've found a solution that worked for me.

use an id for the form like

Then for the button add an onClick event as below

<input type="button" value="Submit Form" onclick="getLastDate()" />

and in the javascript in <head>, use the below method. Make sure that the method name is same as the onClick event attribute value.

Here i need to fill a text box with current time, so i used the below code, you have to change as per your requirement.

This is solution for my first question.

For time delay i.e. my second question.

Use a setTimeout method in javascript as below. Here 3000 means 3 seconds.

This has to be given wherever you want a time delay,

In my case, i need to get the time in text box, pause it and then submit the form data, so i took this after the time is fetched (please refer to my third code block for full js method).

This is how I've solved my problem.

Cheers,
Rakesh

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