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Some days I had posted an article about User name live availability checking with PHP and jquery. In this post my brother Ravi Tamada explained the same with Java technologies like JSP and servelts using MySQL database.
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Rating: 4.5
Reviewer: Unknown
ItemReviewed: Live Availability Checking with Java.
I received a lot of requests about integration of JQuery and Ajax with Java (JSP). After long time again I'm working on JSP. I prepared a tutorial to update a record with animation effect using jQuery and JSP. Its very simple example contains some lines of Java and HTML code.
Rating: 4.5
Reviewer: Unknown
ItemReviewed: Update a Record with Animation effect using JSP and jQuery.
Web.xml mapping servlet names improve web app's flexibility and security..The deployment descriptor (DD), provides a "declarative" mechanism for customizing your web applications without touching source code!
Tomcat Directory Structure
Login.java
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class Login extends HttpServlet{
public void doGet(HttpServletRequest request,
HttpServletResponse response)throws IOException{
PrintWriter out=response.getWriter();
java.util.Date tody=new java.util.Date();
out.println("out put html tags");
}
}
<servlet>Maps internal name to fully-qualified class name.
<servlet-mapping>Maps internal name to public URL name.
web.xml
<servlet-mapping> which servlet should i invoke for this requested URL?
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee web-app_2_4.xsd" version="2.4">
<servlet>
<servlet-name>Servlet_login</servlet-name>
<servlet-class>Login</servlet-class>
</servlet>
<servlet>
<servlet-name>Servlet_inbox</servlet-name>
<servlet-class>inbox</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Servlet_login</servlet-name>
<url-pattern>/signin.do</usr-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Servlet_inbox</servlet-name>
<url-pattern>/view.do</usr-pattern>
</servlet-mapping>
</web-app>
signin.do file mapping to Login.class. So the client or users to get to the servlet.. but it's a made-up name that is NOT the name of the actual servlet class.
Tomcat Directory Structure
Login.java
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class Login extends HttpServlet{
public void doGet(HttpServletRequest request,
HttpServletResponse response)throws IOException{
PrintWriter out=response.getWriter();
java.util.Date tody=new java.util.Date();
out.println("out put html tags");
}
}
<servlet>Maps internal name to fully-qualified class name.
<servlet-mapping>Maps internal name to public URL name.
web.xml
<servlet-mapping> which servlet should i invoke for this requested URL?
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee web-app_2_4.xsd" version="2.4">
<servlet>
<servlet-name>Servlet_login</servlet-name>
<servlet-class>Login</servlet-class>
</servlet>
<servlet>
<servlet-name>Servlet_inbox</servlet-name>
<servlet-class>inbox</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Servlet_login</servlet-name>
<url-pattern>/signin.do</usr-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Servlet_inbox</servlet-name>
<url-pattern>/view.do</usr-pattern>
</servlet-mapping>
</web-app>
signin.do file mapping to Login.class. So the client or users to get to the servlet.. but it's a made-up name that is NOT the name of the actual servlet class.
Rating: 4.5
Reviewer: Unknown
ItemReviewed: Web.xml Deployment Descriptor
