How to create an alert message in jsp page after submit process is complete

Question

I am trying to add a message in my jsp after the process is done by hitting the submit button.

function onSubmit() {
alert("Master_Data.xlsx and Consistency_Check_Data.xlsx are located under d:/stage/MasterDataReports");
}
</script>
<body>

<form name="input" action="getMasterData" method="get">



    <br />
    <br />
    <h1 align='center'>Master Data File</h1>
    <br />
    <br />


    <table border="0" align='center'>
        <tr>
            <td>
                <h2>Site Name</h2>
            </td>
            <td align='left'>
            <jsp:useBean id="masterDao" class="master.dao.MasterDataDao"/>
            <select name="siteId" id="siteId">
            <option value="0">ALL</option>
             <c:forEach items="${masterDao.allSites}" var="siteDto">
             <option value="${siteDto.id}">${siteDto.name}</option>
            </c:forEach>
            </select></td>
        </tr>
        <tr>
            <td>
                <h2>Division</h2>
            </td>
            <td align='left'>
            <jsp:useBean id="masterDaoUtil" class="master.dao.util.MasterDataConstants"/>
            <select name="divisionId" id="divisionId">
            <option value="33"><%=MasterDataConstants.DIVISION_TYPE_AUDIT_MANAGEMENT_GLOBAL_NAME%></option>
            <option value="31"><%=MasterDataConstants.DIVISION_TYPE_CHANGE_MANAGEMENT_GLOBAL_NAME%></option>
            <option value="34"><%=MasterDataConstants.DIVISION_TYPE_DEA_MANAGEMENT_GLOBAL_NAME%></option>
            <option value="35"><%=MasterDataConstants.DIVISION_TYPE_EHS_MANAGEMENT_GLOBAL_NAME%></option>
            <option value="23"><%=MasterDataConstants.DIVISION_TYPE_EVENT_MANAGEMENT_GLOBAL_NAME%></option>
            </select></td>
        </tr>

    </table>
    <br />
    <br />
    <div style="text-align: center">
        **strong text**<input type="submit" value="Submit" OnClick="onSubmit()">
    </div>

Right now the submit process will only happen after I clear the alert. Is there a way that I can either pop an alert after the submit process is done or if I can add a message to the jsp page? Thanks in advance Sonny

Here is my updated Servlet that is causing error:

package master.service;

import java.io.IOException;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
**strong text**import javax.servlet.http.HttpSession;



@SuppressWarnings("serial")

public class MasterDataServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response, HttpSession session)
        throws IOException, ServletException {
    MasterDataService masterDataService = new MasterDataService();
    try {
        int siteId = Integer.parseInt(request.getParameter("siteId"));
        int divisionId = Integer.parseInt(request.getParameter("divisionId"));
        //For master data file
        masterDataService.createMasterDataFile(siteId, divisionId,false);
        //For consistency checker file 
        masterDataService.createMasterDataFile(siteId, divisionId,true);
        request.getRequestDispatcher("/masterDataQueryScreen.jsp").forward(request, response);
        **strong text**session.setAttribute("getAlert", "Yes");//Just initialize a random variable.
        **strong text**response.sendRedirect("/masterDataQueryScreen.jsp");
    } catch (ClassNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (SQLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

}

User · Answer

You can also create a new jsp file sayng that form is submited and in your main action file just write its file name

Eg. Your form is submited is in a file succes.jsp Then your action file will have

Request.sendRedirect("success.jsp")

User · Answer

in your servlet    request setAttribute  submitDone   done     return mapping findForward  success      In your jsp   lt c if test    not empty submitDone   gt     lt script gt alert  Form submitted     lt  script gt  lt  c if gt

User · Answer

So let s say after getMasterData servlet will response sendRedirect to to test jsp   In test jsp  Create a javascript   lt script type  text javascript  gt  function alertName    alert  Form has been submitted        lt  script gt     and than at the bottom   lt script type  text javascript  gt  window onload   alertName   lt  script gt    Note im not sure how to type the code in stackoverflow    Edit  I just learned how to  Edit 2  TO the question This works perfectly  Another question  How would I get rid of the initial alert when I first start up the JSP   Form has been submitted  is present the second I execute  It shows up after the load is done to which is perfect    To do that i would highly recommendation to use session   So what you want to do is in your servlet   session setAttribute  getAlert    Yes     Just initialize a random variable  response sendRedirect test jsp     than in the test jsp   lt   session setMaxInactiveInterval 2     gt     lt script type  text javascript  gt  var Msg    lt   session getAttribute  getAlert    gt        if  Msg     null      function alertName     alert  Form has been submitted             lt  script gt     and than at the bottom   lt script type  text javascript  gt  window onload   alertName   lt  script gt    So everytime you submit that form a session will be pass on  If session is not null the function will run

[javascript] How to create an alert message in jsp page after submit process is complete

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