Default parameters filter

Default parameters filter ver. 1.1

This is a Java servlet filter (as per Servlet API 2.3). This filter lets you define the default parameters for HTTP requests.

How to use it:

a) download defparamflt.jar and save it in WEB-INF/lib

b) describe this filter in web.xml. Initial parameters must describe your default HTTP parameters. For example:

<filter>
  <filter-name>DefaultParamFilter</filter-name>
  <filter-class>com.cj.defparam.DefParamFilter</filter-class>
  <init-param>
    <param-name>a</param-name>
    <param-value>5</param-value>
  </init-param>
  <init-param>
    <param-name>b</param-name>
    <param-value>test</param-value>
  </init-param>
</filter>

c) describe a mapping for this filter in web.xml

<filter-mapping>
<filter-name>DefaultParamFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

and now your request will have the above mentioned default parameters a and b.

For downloading:

Default parameters filter: defparamflt.jar

See also JSOS - the largest collection of servlets and filters.