= JSP =
Java Server Pages
== Maven example ==
* cd /tmp
* mkdir jspExample
* cd jspExample
* nano pom.xml
{{{#!highlight xml
4.0.0
test
dummy
1.0
war
javax
javaee-web-api
6.0
provided
}}}
* mkdir -p src/main/webapp/WEB-INF
* nano src/main/webapp/WEB-INF/web.xml
{{{#!highlight xml
}}}
* nano src/main/webapp/index.jsp
{{{#!highlight html
<%@page import="org.allowed.bitarus.Handler" %>
<% Handler h = new Handler(request,response,out); %>
Hello
World
<% h.writeHandler(); %>
<% out.println("Your IP address is " + request.getRemoteAddr()); %>
<% h.writeIP(); %>
}}}
* mkdir -p src/main/java/org/allowed/bitarus
* nano src/main/java/org/allowed/bitarus/TestBean.java
{{{#!highlight java
/*
mkdir -p src/main/java/org/allowed/bitarus
kate src/main/java/org/allowed/bitarus/TestBean.java
*/
package org.allowed.bitarus;
import java.util.logging.Logger;
import java.util.logging.Level;
public class TestBean{
private String name;
private Logger logger;
public TestBean(){
this.logger = Logger.getLogger(this.getClass().getName() );
this.logger.log(Level.INFO,"Created test bean");
this.name="Ioooo";
}
public String getName(){
this.logger.info("getName called");
return this.name;
}
public void setName(String name){
this.name=name;
}
}
}}}
* nano src/main/java/org/allowed/bitarus/Handler.java
{{{#!highlight java
package org.allowed.bitarus;
import java.util.logging.Logger;
import java.util.logging.Level;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspWriter;
/*
mkdir -p src/main/java/org/allowed/bitarus
http://localhost:8081/dummy-1.0/index.jsp?user=TestASD
*/
public class Handler{
private HttpServletRequest request;
private HttpServletResponse response;
private JspWriter out;
public Handler(HttpServletRequest request, HttpServletResponse response,JspWriter out){
this.request = request;
this.response = response;
this.out = out;
}
public void writeHandler(){
try{
this.out.println(String.format("Handler up %s
" , this.request.getParameter("user") ));
}
catch(Exception ex){
}
}
public void writeIP(){
try{
this.out.print("!!! Your IP address is " + this.request.getRemoteAddr());
}
catch(Exception ex){
}
}
}
}}}