I created a simple Java/JSP web app and added a basic Scala servlet. Everything works and I've included the Scala file and web.xml below. How can I modify my little "trainer" servlet so I can query a MySql table and generate an HTML <table>...</table>. Btw, I will look into Lift at a later time. At the moment, my plan is to add a several new Scala servlets into an existing web app.
ScalaTrainer.scala
package com.mdm.h4
import javax.servlet.http.{HttpServlet,
HttpServletRequest => HSReq, HttpServletResponse => HSResp}
class ScalaTrainer extends HttpServlet
{
def html =
<html>
<head>
<title>Hello Scala</title>
</head>
<body>
<p style="text-align: center">This is 100% pure Scala.</p>
<p>It's now
{currentDate}
</p>
<p>My name is
{name}
and I'm learning
{language}.
</p>
</body>
</html>
def name = "Mike"
def language = "Scala"
def currentDate = java.util.Calendar.getInstance().getTime()
override def doGet(req: HSReq, resp: HSResp) {
resp.getWriter().print(html)
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<servlet>
<display-name>trainer</display-name>
<servlet-name>ScalaTrainer</servlet-name>
<servlet-class>com.mdm.h4.ScalaTrainer</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>ScalaTrainer</servlet-name>
<url-pattern>/trainer</url-pattern>
</servlet-mapping>
</web-app>