Servlet Mapping in Java

[Adrina_g]

Hello, I want to know the details about the Servlet Mapping in java. I have search details about it, but, I am not able to know more about it. So, if you are having more details about it, then please provide that details to me. I will be thankful to you. If you are having details then reply me.

[Katty]

Hey, I have tried to create a servlet mapping. You can use it in your program.

xml version ="1.0" encoding ="UTF-8"?>
<web-app id ="WebApp_ID" version ="2.4" xmlns ="http://java.sun.com/xml/ns/j2ee" xmlns: xsi ="http://www.techarena.in/2010/XMLSchema-instance" xsi: schemaLocation ="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>
asea </ display-name>
<servlet>
<description>
</ description>
<display-name>
administerValidation </ display-name>
<servlet-name> administerValidation </ servlet-name>
<servlet-class>
com.asea.administerValidation</ servlet-class>
</ servlet>
<servlet-mapping>
<servlet-name> administerValidation </ servlet-name>
<url-pattern> / administerValidation </ url-pattern>
</ servlet-mapping>
<welcome-file-list>
<welcome-file> index.html</ welcome-file>
<welcome-file> index.htm</ welcome-file>
<welcome-file> index.jsp</ welcome-file>
<welcome-file> default.html</ welcome-file>
<welcome-file> default.htm</ welcome-file>
<welcome-file> default.jsp</ welcome-file>
</ welcome-file-list>

[Zecho]

If you want to know about the Servlet mapping then it is the technique which is used for the specification of the web container. It will be provided by the client and it will be invoked for a url from the client. Mapping is done for the url patterns to the servlets. Your servlet mapping is done with the following basic :

<servlet-mapping>
<servlet-name>milk</servlet-name>
<url-pattern>/drink/*</url-pattern>
</servlet-mapping>

[kelfro]

Servlet Mapping Techniques :
As a servlet engine developer, you have a great deal of flexibility in how you map client requests to servlets. This specification does not mandate how the mapping should take place. However, you should feel free to use any of the following techniques:

• You can map a servlet to just one URL.
• You can map a servlet to any URL that begins with a certain directory name.
• You can map a servlet to any URL that ends with a certain file name extension.
• You can map a servlet by using the special URL /servlet/servlet_name.
• You can invoke a servlet by its class name.

[Reegan]

servlet-mapping: Servlet mapping is a techinque which will be used for mapping a URL to the servlet while executing. It is having a url-pattern for matching the URL. And also a servlet name for matching the configured servlet. Below is the typical servlet-mapping :

<servlet>
  <servlet-name>Check</servlet-name>
  <servlet-class>CheckIT</servlet-class>
</servlet>

<servlet-mapping>
  <url-pattern>/Check/*</url-pattern>
  <servlet-name>Check</servlet-name>
</servlet-mapping>