| <%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql" %> |
| <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> |
| |
| <html> |
| <head> |
| <title>JSTL: SQL action examples</title> |
| </head> |
| <body bgcolor="#FFFFFF"> |
| |
| <h1>SQL Update Execution</h1> |
| |
| |
| <!-- NOTE: the sql:setDataSource tag is for prototyping and simple applications. You should really use a DataSource object instead --!> |
| |
| <sql:setDataSource |
| var="example" |
| driver="${sessionScope.myDbDriver}" |
| url="${sessionScope.myDbUrl}" |
| user="${sessionScope.myDbUserName}" |
| password="${sessionScope.myDbPassword}" |
| /> |
| |
| <hr> |
| |
| <sql:transaction dataSource="${example}"> |
| |
| <sql:update var="newTable"> |
| create table mytable ( |
| nameid int primary key, |
| name varchar(80) |
| ) |
| </sql:update> |
| |
| <h2>Inserting three rows into table</h2> |
| <sql:update var="updateCount"> |
| INSERT INTO mytable VALUES (1,'Paul Oakenfold') |
| </sql:update> |
| <sql:update var="updateCount"> |
| INSERT INTO mytable VALUES (2,'Timo Maas') |
| </sql:update> |
| <sql:update var="updateCount"> |
| INSERT INTO mytable VALUES (3,'Paul van Dyk') |
| </sql:update> |
| |
| <p>DONE: Inserting three rows into table</p> |
| |
| |
| <sql:query var="deejays"> |
| SELECT * FROM mytable |
| </sql:query> |
| |
| </sql:transaction> |
| |
| <%-- An example showing how to populate a table --%> |
| <table border="1"> |
| <%-- Get the column names for the header of the table --%> |
| <c:forEach var="columnName" items="${deejays.columnNames}"> |
| <th><c:out value="${columnName}"/></th> |
| </c:forEach> |
| |
| <%-- Get the value of each column while iterating over rows --%> |
| <c:forEach var="row" items="${deejays.rows}"> |
| <tr> |
| <c:forEach var="column" items="${row}"> |
| <td><c:out value="${column.value}"/></td> |
| </c:forEach> |
| </tr> |
| </c:forEach> |
| </table> |
| |
| |
| <h2>Deleting second row from table</h2> |
| |
| <sql:update var="updateCount" dataSource="${example}"> |
| DELETE FROM mytable WHERE nameid=2 |
| </sql:update> |
| |
| <p>DONE: Deleting second row from table</p> |
| |
| <sql:query var="deejays" dataSource="${example}"> |
| SELECT * FROM mytable |
| </sql:query> |
| |
| |
| <%-- Yet another example showing how to populate a table --%> |
| <table border="1"> |
| <c:forEach var="row" items="${deejays.rows}" varStatus="status"> |
| <%-- Get the column names for the header of the table --%> |
| <c:choose> |
| <c:when test="${status.count == 1}"> |
| <%-- Each row is a Map object key'd by the column name --%> |
| <tr> |
| <c:forEach var="metaData" items="${row}"> |
| <th><c:out value="${metaData.key}"/></th> |
| </c:forEach> |
| </tr> |
| </c:when> |
| </c:choose> |
| <tr> |
| <c:forEach var="column" items="${row}"> |
| <%-- Get the value of each column while iterating over rows --%> |
| <td><c:out value="${column.value}"/></td> |
| </c:forEach> |
| </tr> |
| </c:forEach> |
| </table> |
| |
| |
| <sql:update var="newTable" dataSource="${example}"> |
| drop table mytable |
| </sql:update> |
| |
| |
| </body> |
| </html> |
