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Insert data in database by using sql tag of JSTL SQL library

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Here in this section we are going to create application that update database by inserting data given by user.

Insert data in database by using sql tag of JSTL SQL library

     

Here in this section we are going to create application that update database by inserting data given by user. To update database first create a data source and then execute insert sql query for that data source.

 

 

 

 

 

<sql:setDataSource> : This tag is used to create data source for specified driver, user name and password of database, url etc. 
Attributes of the tag <sql:setDataSource> 
dataSource Optional attribute for explicitly specifying their connection factory, it may be a instance   javax.sql.DataSource interface.
driver  driver class name that is use to create connection.
url  url associated with given database.
user  It specifies user name of the database.
password  It specifies password of the database.
var  var is a variable that is used to store created data source.
Scope  Define the scope for declared variable like page or request or session or application.

After creating connection to database, now we are explaining how to execute insert sql query. To update database we have used a sql tag <sql:update>, it executes update sql queries.

<sql:update> : This tag is used to create data source for specified driver, user name and password of database, url etc. 
Attributes of the tag <sql:update> 
dataSource  It specifies that for which data source you want to execute given query.
sql  It specifies sql query statement.
var  var is a variable that is used to store result after execution of given sql query.
Scope  Define the scope for declared variable like page or request or session or application.

Before run this code first create a database named 'mahendra' and table named 'employee_master' in same database by the sql query given below:

Query to create table:
CREATE TABLE `employee_master` (             
         `emp_id` int(10) NOT NULL auto_increment,  
         `firstName` varchar(20) default NULL,      
         `lastname` varchar(20) default NULL,       
         `salary` double default NULL,              
         `tonus` double default NULL,               
          PRIMARY KEY  (`emp_id`)                    
        ) 

 

Structure of the table:




insert_data_SqlJstlTag.jsp

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jstl/sql" prefix="sql"%>
<html>
<head>
<title>Updating a database using the sql:update tag</title>
<sql:setDataSource var="dataSource" driver="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/mahendra" user="root" password="root"
scope="session" />
</head>
<body>
<h3>This is example of update query using JSTL SQL Tags.</h3>
<form method="post">
<table>
<tr>
<td>Enter First Name</td>
<td><input type="text" name="fname"></td>
</tr>
<tr>
<td>Enter Last Name</td>
<td><input type="text" name="lname"></td>
</tr>
<tr>
<td>Enter Salary</td>
<td><input type="text" name="salary"></td>
</tr>
<tr>
<td>Enter Total Bonus</td>
<td><input type="text" name="bonus"></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="submit"></td>
</tr>
</table>
</form>
<c:if test="${pageContext.request.method=='POST'}">
<c:catch var="exception">
<sql:update dataSource="${dataSource}" var="updatedTable">
INSERT INTO employee_master (firstname,lastname,salary,tonus) VALUES (?, ?, ?, ?)
<sql:param value="${param.fname}" />
<sql:param value="${param.lname}" />
<sql:param value="${param.salary}" />
<sql:param value="${param.bonus}" />
</sql:update>
<c:if test="${updatedTable>=1}">
<font size="5" color='green'> Congratulations ! Data inserted
successfully.</font>
</c:if>
</c:catch>
<c:if test="${exception!=null}">
<c:out value="Unable to insert data in database." />
</c:if>
</c:if>
</body>
</html>

Steps to run this example :

1:  Download the zip file of code and unzip this file, you will get a folder named  'insert_data_SqlJstlTag'.
2:  Paste this folder in 'Apache Tomcat 6.0.16-->webapps' or generally in directory 'C:\apache-tomcat-6.0.16\webapps'.
3:  Start tomcat server by click on startup.bat file in 'C:\apache-tomcat-6.0.16\bin'.
4: Open browser and type url 'http://localhost:8080/insert_data_SqlJstlTag/insert_data_SqlJstlTag.jsp'
or click on this link.

Output of the program

When user enter all information in the text boxes and click on submit button, response will be.....

Download Source Code

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Posted on: August 11, 2008

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Comments:2
Darshit
August 15, 2014
About Jar files

Which jar file will be needed to run this program
Deepak Kumar
August 16, 2014
Download source code

Hi, Download the source code from the tutorial page http://www.roseindia.net/jstl/insert-data-SqlJstlTag.shtml Then you can create the war file from eclipse and deploy on the Tomcat. Thanks
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