problem in web application : I have a database names tasks in SQL server 2005 having tasks id as primay key, I am using JSP and struts for database connectivity,Now I can update my database but i want to autogenerate tasks id in numbers on JSP page when I click on CreateTask.jsp page.How can i do so?My project storing user entered task id,task name ,date etc properly in the database,but what and how should i make it (in taskAction.java) that it auto generate tasksid in jp page when i click on Create_task.jsp and other data user can enter himself.I am using Jdeveloper.Codes: create.jsp :- -
<%@ page language="Java" %>
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<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%><%@ page contentType="text/html;charset=windows-1252"%>
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<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
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<html:form action ="taskAction.do">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
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<title>untitled</title>
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</head>
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<body>
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<form >
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<P> </P>
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<BLOCKQUOTE>
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<BLOCKQUOTE>
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<BLOCKQUOTE>
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<BLOCKQUOTE>
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<P>
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<SPAN style="background-color:rgb(204,204,204); background-color:rgb(204,204,204);"><SPAN style="background-color:rgb(255,255,255);"><FONT color="#006666"><STRONG><U><h1>
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<SPAN style="background-color:rgb(255,255,255); background-color:rgb(204,204,204);">TASK MANAGER</SPAN>
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</h1></U></STRONG> </FONT><SPAN style="background-color:rgb(204,255,255); background-color:rgb(204,204,255);"><FONT color="#003300"> </FONT></SPAN> </SPAN></SPAN></P>
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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<P>
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<SPAN style="background-color:rgb(204,255,255); background-color:rgb(204,204,255);"><FONT color="#003300"> Task Id
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<html:text property="taskid"/>
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</FONT>
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</SPAN>
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</P>
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<P>
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<SPAN style="background-color:rgb(204,255,255); background-color:rgb(204,204,255);"><FONT color="#003300"> Task Name
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<html:text property="taskname"/>
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</FONT>
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</SPAN>
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</P>
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<P>
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<SPAN style="background-color:rgb(204,255,255); background-color:rgb(204,204,255);"><FONT color="#003300"> Date
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<html:text property="dateOfBirth"/>
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</FONT>
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</SPAN>
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</P>
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<P>
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</P>
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<P>
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<input type="submit" value="Submit"/></P>
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</form>
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</body>
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</html:form>
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taskAction.java :- -
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//import TaskBO;
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import org.apache.struts.action.Action;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.struts.action.*;
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-
-
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public class taskAction extends Action
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{
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public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
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HttpServletResponse response)
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{
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ActionForward forward;
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taskform tForm = (taskform) form;
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Taskdata taskdata = populateTaskdata(tForm);
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TaskBO taskBO = new TaskBO();
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if (taskBO.createtask(taskdata))
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{
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forward = mapping.findForward("success");
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}
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else
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{
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forward = mapping.findForward("failure");
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}
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return forward;
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}
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private Taskdata populateTaskdata(taskform form)
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{
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Taskdata td = new Taskdata();
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td.setTaskid(form.getTaskid());
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td.setTaskname(form.getTaskname());
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td.setDateOfBirth(form.getDateOfBirth());
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return td;
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}
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}
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taskform.java :- -
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import org.apache.struts.action.ActionForm;
-
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public class taskform extends ActionForm
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{
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private int taskid;
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private String taskname;
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private String dateOfBirth;
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private String update;
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private String delete;
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public taskform()
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{
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taskid = 0;
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taskname = "";
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dateOfBirth = "";
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}
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-
-
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public void setTaskid(int taskid)
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{
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this.taskid = taskid;
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}
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public int getTaskid()
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{
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return taskid;
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}
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-
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public void setTaskname(String taskname)
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{
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this.taskname = taskname;
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}
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public String getTaskname()
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{
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return taskname;
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}
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public void setDateOfBirth(String dateOfBirth)
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{
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this.dateOfBirth = dateOfBirth;
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}
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-
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public String getDateOfBirth()
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{
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return dateOfBirth;
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}
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-
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public void setUpdate(String update)
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{
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this.update = update;
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}
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-
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public String getUpdate()
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{
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return update;
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}
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-
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public void setDelete(String delete)
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{
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this.delete = delete;
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}
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-
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public String getDelete()
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{
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return delete;
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}
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}
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Hi,
In C# we have a Random class. This class has a member fucntion [I]next()[/i], this will provide a random int data which is unique..
Random ranobj= new Random();
taskid=ranobj.next();
1  6671 
Hi,
In C# we have a Random class. This class has a member fucntion [I]next()[/i], this will provide a random int data which is unique..
Random ranobj= new Random();
taskid=ranobj.next();
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