我试图通过点击提交按钮完成该过程后在我的jsp中添加一条消息.
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>
现在,提交过程只会在我清除警报后发生.有没有办法可以在提交过程完成后弹出警报,或者我是否可以向jsp页面添加消息？在此先感谢桑尼
这是我更新的Servlet导致错误:
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();
}
}
}
所以让我们说getMasterData servlet将response.sendRedirect转换为test.jsp.
在test.jsp中
创建一个JavaScript
<script type="text/javascript">
function alertName(){
alert("Form has been submitted");
}
</script>
而不是在底部
<script type="text/javascript"> window.onload = alertName; </script>
注意:我不知道如何在stackoverflow中键入代码!编辑:我刚刚学会了如何
编辑2:问题:这完美无缺.另一个问题.当我第一次启动JSP时,如何摆脱初始警报？"表格已提交"是我执行的第二个.它在负载完成后显示出来是完美的.
要做到这一点,我强烈建议使用会话!
所以你想要做的是在你的servlet中:
session.setAttribute("getAlert", "Yes");//Just initialize a random variable.
response.sendRedirect(test.jsp);
比在test.jsp中
<%
session.setMaxInactiveInterval(2);
%>
<script type="text/javascript">
var Msg ='<%=session.getAttribute("getAlert")%>';
if (Msg != "null") {
function alertName(){
alert("Form has been submitted");
}
}
</script>
而不是在底部
<script type="text/javascript"> window.onload = alertName; </script>
因此,每次提交该表单时,会话都将被传递!如果session不为null,则该函数将运行!