What is init-param in Web xml?
This is an element within the servlet. The optional init-param element contains a name/value pair as an initialization parameter of the servlet. Use a separate set of init-param tags for each parameter. You can access these parameters with the javax.
Where is init-param in Web xml?
If you want to store particular data which is confined to a particular servlet scope, then you can use . Anything you declare inside is only accessible only for that particular servlet. The init-param is declared inside the tag.
What is contextConfigLocation in Web xml?
The initialization parameter contextConfigLocation tells Spring where to load configuration files. The tag tells the servlet container to load this servlet upon start up with highest priority.
How do I use Web xml?
web. xml defines mappings between URL paths and the servlets that handle requests with those paths. The web server uses this configuration to identify the servlet to handle a given request and call the class method that corresponds to the request method. For example: the doGet() method for HTTP GET requests.
What is init parameter?
The initialization parameter file is a text file that contains a list of parameters and a value for each parameter. The file should be written in the client’s default character set. Specify values in the parameter file which reflect your installation.
What is the difference between context init parameter and servlet init parameter?
Servlet init parameters are for a single servlet only. Nothing outside that servlet can access that. It is declared inside the tag of Deployment Descriptor, on the other hand context init parameter is for the entire web application. Any servlet or JSP in that web application can access context init parameter.
What are DispatcherServlet and ContextLoaderListener?
Basic. The task of the DispatcherServlet is to send request to the specific Spring MVC controller. ContextLoaderListener reads the Spring configuration file (with value given against contextConfigLocation in web.xml ), parses it and loads the singleton bean defined in that config file.
How do I find WebApplicationContext?
Easiest solution is to use getWebApplicationContext() of WebApplicationContextUtils : Find the root WebApplicationContext for this web application, which is typically loaded via ContextLoaderListener. See also getRequiredWebApplicationContext() .
What is init param in servlet?
The init-param element within a filter or servlet definition element contains initialization parameters for that filter or servlet instance. These are distinct from context parameters, discussed in Section 4.7. Each init-param contains a param-name element and a param-value element.
What is a DispatcherServlet?
The DispatcherServlet is the front controller in Spring web applications. It’s used to create web applications and REST services in Spring MVC. In a traditional Spring web application, this servlet is defined in the web. xml file.