Servlets :: How To Get Whole List Table / Dropdown Data From HTML / JSP

Sep 4, 2014

Is it possible to get the list/ values in html/jsp from servlet?

I have a table inside an html/jsp page and when the user clicks a button I need to refresh the whole page with some additional text message.

Currently what I am doing is that I am using a java bean for the jsp page that contains a list of values inside the table then store it in session but I think there is a better way without storing it in session.

I tried using request.getParameter() but it only returns string.

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Servlets :: Save HTML Table Data To Database

Nov 17, 2014

I have a HTML table whose rows are getting generated through javascript function. I want to save this data in the table rows.

**HTML Code**

<div style="width:100%;height:100%;border:1px solid black; overflow-x:scroll; overflow-y:scroll; padding:0">
<table border=0>
<tr>
<td>
<input type="button" name="add_details" id="add_details" value="Add" onclick="AddDetails()">
<input type="button" name="delete_details" id="delete_details" value="Delete" onclick="DeleteDetails()">

[Code] .....

When i press submit button in my form of JSP, how can i access table data?

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Servlets :: How To Retrieve Data From HTML Table And Insert It Into Database

Apr 1, 2015

I want to retrieve the data from this table given below and insert that data in the database in the next servlet

package com.sk;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

[Code] .....

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JSP :: How To Delete Data From Database Through Check Box Using Html Table On Page

Jan 22, 2014

Problem code:

JSP 1:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@page import="java.sql.*;" %>
<%!Connection con;%>
<%!Statement stmt = null;%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "[URL]...">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">

[Code]...

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Servlets :: Using HTML Form To Sort Data

May 12, 2014

I have a very simple HTML form with a textField for a name, and add button to add the name to a MySQL database, and a sort button to sort the names in the database and display them. I almost have it working, however when I hit the "sort" button; I get the message that appears after a user clicks the add button along with the sorted list of names. It looks like this:

Please go back and add a name or sort.
Bill Jones
David G
Debbie Downer
Jane Doe
Joe Smith
John Doe
Mike Jones
Paul Smith
Susan Jones

What I have to change on my code to make just the list show up by itself when the user clicks sort?

My servlet code:

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.*;

[Code] .....

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Servlets :: Loosing HTML Data Into Request Parameter?

Jan 23, 2014

In one jsp page, I submit a form with a message body with following html code (which is store in "MsgBody" in my request)

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />

[code]....

But when I submit my form, I received in my servlet a parameter "MsgBody" without several tag like <html>/<body> ... do you know this behavior, by default tag are delete ?

public String execute(Map params, HttpServletRequest request, HttpServletResponse response) throws Exception {
String MsgBody = request.getParameter("MsgBody");.

I use Tomcat 7, maybe a tomcat behavior can influence for this tag loose in request param ?

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Servlets :: Getting HTML In String When Hit JSP - Download Data In PDF File

Aug 15, 2014

I need to get the html in string when i hit the hit the jsp in servlets basically i need to put the output of jsp in pdf file when i hit one link i need to download that data in pdf file. I am using itextpdf.

Sample code

pResponse.setContentType("application/pdf");
((HttpServletResponse) pResponse).setHeader("Content-Disposition", "attachment; filename=report.pdf");

//Get the output stream for writing PDF object
OutputStream outStream=pResponse.getOutputStream();
ByteArrayOutputStream baosPDF = new ByteArrayOutputStream();

[Code] ....

I need to convert the sample download.jsp to html so that i can parse

// XMLWorkerHelper.getInstance().parseXHtml(docWriter, document,new FileInputStream(jspPath),new FileInputStream(csspath) ,null ,new XMLWorkerFontProvider());

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Servlets :: Inserting Data To The Table?

May 3, 2014

In my project I need to add some schedule information into a schedule table in the database..

I am accepting input from a user which direct the parameters here..

I am doing all the required stuff but yet code is not working

There must be some error in date object.

I am using mysql as backend, I have used same kind of code in jsp that is working fine but this is creating error

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.logging.Level;
import java.util.logging.Logger;

[code].....

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Servlets :: How To Output Data From Database Into Table JSP

Mar 7, 2015

I am trying to output data but get empty table. What am I doing wrong? Here is my code:

Class Item:

package com.store.util;
public class Item {
private Long id;
private String name;
private String description;
private String category;
private Double price;

[Code]...

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JSP :: Dropdown List Format

Mar 30, 2014

I want to create a quiz in java in which questions and options will be retrieved from mysql database.I want the options to be in drop down list format.And I am using jsp for presentation layer and all the connections with database are in java..how to retrieve the options from database to drop down menu...

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Servlets :: HTML Form - Possible To Send Data (image / Text) Along A Single Form

Jan 8, 2015

I want to understand how is it possible to send data (image + text) along a single form. Here is my code:

<form method="post" action="updateAccount"
encType="multipart/form-data">
<input type="file" name="file" value="Select image ..." /> <input
type="submit" value="Start Upload" /> <br>
<textarea rows="8" cols="54" name="about">Yes

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Servlets :: How To Store List Of Data Of A Database In ServletContext

Feb 5, 2014

i am newbie to servlet and m working on a project like online shopping. I have list of data items in my database and i am able to fetch and display the data from database but i want to know that how can i store these data items in ServletContext so that i can use use it frequently in other pages.

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JSP :: Store Selected Value From Dropdown List To Database?

Apr 6, 2014

I want to store the selected value from drop down list to mysql database...what should I do?

I have written the following code

<%@ page import="java.sql.*" %>
<%ResultSet resultset =null;%>
<HTML>
<HEAD>
<TITLE>Assessment Questionnaire</TITLE>
</HEAD>
<%
try{
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/city?user=root&password=");

[code]....

what should i do to store the value selected from dropdown list...I have multiple dropdown list on a single page..

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JSP :: Populate A Dropdown With Fixed / Static List Of Values?

Nov 3, 2014

I have a fixed list of 20+ values to be populated in a dropdown. The set of values are always going to remain the same, no future scope of modifications, additions or deletions.

Listing each of them as <option> in JSP is making the page look cluttered. Or is it better reading it as a comma-separated string from a properties file and then iterating to populate the dropdown.

What will be the best approach to populate such a dropdown in JSP?

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Servlets :: Populate Text Fields Based On Dropdown

Nov 20, 2014

I have list of employees in my database and their associated information like employeeId,supervisor and process. I have class named EmployeeDetails having same properties. I am fetching details of all users using below code:

<%EmployeeDetails employeeList;
employeeList=(List<EmployeeDetails>)assetmain2.getEmployeeList(loginName);%>
<table>
<tr>
<td>
Requested For <select name="requestedForName" id="requestedForNameID">
<option selected="selected">--Select--</option>
<%int i=0;

[Code] .....

In employeeList, we have list of objects having data of employees. I donot know how to get which object is selected in dropdown and based on that rest of the text fields are populated. Example:

Name ID Supervisor
-------------------------------------------------------
Pawan Kumar3033045Vimal Kumar
Vimal Kumar3040901Dinesh Hemrajani

If Pawan Kumar is selected from dropdown then '3033045' and 'Vimal Kumar' should get populated.

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JSP :: Change Color Of HTML Table Row In A Page

Aug 28, 2014

I am creating a JSP page with a html table to display employee directory. This is scriptlet :

<%
List<Employee> list = new ArrayList<Employee>();
PhoneListController controller = new PhoneListController();
list = controller.getAllContacts();
for (Employee eachEmp : list) {
%>

and then i display the table rows and columns for each employee object(PS: I know scriptlets are bad and obsolete but this is my first individual project.)

I would like to change the background color of certain rows based on value of one particular value(based on eachEmp.getManagerCode).

How can i achieve that by using javascript? I tried to call a js function by calling onload event on . But as I need to check for each row that is not the possible solution. I have not tried jquery yet as I am very new to jquery and I didnt quite understand how to do it in jquery.

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Write Output In Columns To HTML Table?

Nov 24, 2014

I've written two programs. My first program compares the difference of two text files and prints the differences in an output. My second program creates a simple Html table. I would like to write my output to this table. How would I go about doing this in java?

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JSP :: Extract PDF From Folder And Display Them In Html Table In Browser

Jan 31, 2014

I have folder which contains PDF and i want to show them in html table in the web browser using JSP

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Adding Data In Table But The Table Is In Another Frame

Mar 13, 2014

This is my codes in a button that if I click it . that information will send to Jtable but the problem is the jtable is in another frame so how can i connect this ?

DefaultTableModel model = (DefaultTableModel)
new admin().tableBagtags.getModel();
if (txtName.getText().equals("")) {
JOptionPane.showMessageDialog(null, "Please fill out all fields.", "Error!", JOptionPane.ERROR_MESSAGE);

[Code] .....

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Enterprise JavaBeans :: How To Refresh JPA Data When Table Data Is Updated From Backend

Nov 27, 2012

Is there a way to inform the Entity Manager or force the JPA provider to reload data from the database? The scenario could be data being updated by a store procedure or direct SQLPlus maintenance, without restarting the Application Server, the JPA need to load the newly updated data from the database.

I think the current JPA API is not enough. The void refresh(java.lang.Object entity) from EntityManager need to pass in the Entity object, I will like to know how to refresh the entire JPA Entity data after the physical table data being update from backend.

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Writing Data To A Static Table - Can't Populate All Fields With Data

Jun 24, 2015

I have a program which consist of several classes. The program reads a pom file and parses the data and then writes the data to a static table. The issue I'm having is with writing my LIB file data to my table. In the HtmlDataTable Class Im trying to write the files that are read in the lib directory to the table. My table currently consist of 3 columns (missing jar files,Lib Directory files, and POM file data) currently Im only able to write the missing jar files data to my table. In the HtmlDataTable class there is a for statement where I write the missing jar file data to my table. Im also trying to write the contents of the Lib directory within this statement as well. This is where I'm having my issue. My other classes consist of a SAX parser which parses the xml file, a class that creates my static table and a class that compares the jar files in my lib directory to the jar files in my pom file. . Theres a lot of code so I included the parts I felt were useful. If needed I can include the other classes as well.
 
public class ReadPomFile extends DefaultHandler {
public static void main(String[] args) {
try {
// obtain a SAX based parser to parse XML document

[Code].....

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Servlets :: Add RadioButton To HTML

Jun 26, 2014

My problem is my teacher told me that i have to add a radiobutton on html. According to radiobutton servlet has to choose write parameters on DB or File. And he wants me to add a method to do this work.

1)Get Parameters
2)Choose to write DB or File according to parameters
3)if it is DB create connection and do writing process
4)if it is file create file and do writing process.

Second piece of code should be removed. İnstead of this i have to use a single method. But i don't know how to do this(not writing code). Should i use another servlet or a class...

package GB;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;

[Code] ....

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Sort Linked List Through The Nodes Of List - Data Of Calling Object

Feb 14, 2014

I have some class called sorted to sort the linked list through the nodes of the list. and other class to test this ability, i made object of the sort class called "list1" and insert the values to the linked list.

If i make other object called "list2" and want to merge those two lists by using method merge in sort class. And wrote code of

list1.merge(list2);

How can the merge method in sort class know the values of list1 that called it as this object is created in other class.

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Servlets :: How To Retrieve Grouped Items From HTML Form

Mar 5, 2015

I am having an issue with retrieving "grouped" data from HTML form to servlet. I will describe the scenario below.

In companies, they record the salary of the employees once a month.When they record it, they do not do it by visiting each an every employees personal "profile" (or whatever according to the system). Instead what they do is apply the salaries of all of them in one page.

To do the above thing they prefer excel like tabular sheets. Now, I have a html form, where the form content is a table. One row is dedicated to a one employee.

Below is my form.

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>

[Code] .....

As you can see, I have wrapped every row with a `<tbody>`. The `value` attribute of the `<tbody>` will contain the employee id. Once the form is submitted, the below servlet will capture it.

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

[Code] .....

What I was trying is get the `value` attribute of `<tbody>` (so I can identify the id of the employee) and get the data inside that `<tbody>`. However this didn't work, because I ended up with `NullpointerException` because it failed to read the `<tbody>` value.

So, how can I pass the data from table to servlet where it can clearly understand that one row is representing data belong to a one employee? If this is not the way to do it, I am also open for other methods.

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Servlets :: Use Of Cookies To Store HTML Attributes Not Working?

Mar 19, 2015

I am trying to use three cookies in a servlet to store the background and foreground color and text size but my code is not working for some reason. When I run the servlet I get an IndexOutOfBounds exception and in my code is says my cookies are not ever used, when they should be to store the variables?

package httpServlets;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;

[code]....

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Servlets :: HTML Body Onload Not Working In Chrome

Mar 12, 2015

I have written sample web application with servlets and jsp. As per the below code the action url should be executed automatically according to the "onload". I have written this below code in one of my servlet, The below "onload" form hits the path in action only in Firefox and IE but not in Chrome(41.0.2272.74 beta-m (64-bit)).I have seen the link [Chrome - <body onload=“”> is not working ][1] , I have my below code in the end of servelt. there is nothing to execute after this code in the servlet.

out.write("<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
");
out.write("<html><body onload="alert('alert has been fired');document.forms[0].submit()">
");
out.write("<form method="POST" action="" + actionUrl + "">

[Code] ....

Is there any reserved key words of chrome in the above action url? If I execute this code in the html format, it is working in chrome. but if it is from servlet, alert() is not running.

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