JSTL SQL Query Tag has following attributes.
1. datasource Attribute: Specifies the datasource. Make sure that you already created datasource using serDataSource tag before writing query.
2. sql Attribute: Specifies the SQL statement to run on database.
3. var Attribute: Store the result of SQL statement.
Syntax-
<sql:query
var=”<string>”
scope=”<string>”
sql=”<string>”
dataSource=”<string>”
startRow=”<string>”
maxRows=”<string>”/>
JSP SQL <sql:query> tag Example:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>JSTL SQL Tags - setDataSource Example</title> </head> <body> <sql:setDataSource driver="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/database_name" var="localSource" user="database_user" password="database_password"/> <sql:query dataSource="${localSource}" var="result"> SELECT * from Employees; </sql:query> <table border="1" width="100%"> <tr> <th>Emp ID</th> <th>First Name</th> <th>Last Name</th> <th>Age</th> </tr> <c:forEach var="row" items="${result.rows}"> <tr> <td><c:out value="${row.id}"/></td> <td><c:out value="${row.first}"/></td> <td><c:out value="${row.last}"/></td> <td><c:out value="${row.age}"/></td> </tr> </c:forEach> </table> </body> </html>
Now try to access above JSP, which should display the following result:
Emp ID | First Name | Last Name | Age |
---|---|---|---|
1111 | Dinesh | Rajput | 27 |
2222 | Sweety | Rajput | 24 |