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Spring - Change DispatcherServlet Context Configuration File Name

In a traditional Spring MVC application, the DispatcherServlet is typically configured in the web.xml file. By default, it looks for a configuration file named [servlet-name]-servlet.xml in the /WEB-INF/ directory.

However, you can change the location and name of this configuration file by setting the contextConfigLocation initialization parameter for the DispatcherServlet in web.xml.

Here's how you can do this:

  1. Locate the web.xml:

    This file is typically located in the src/main/webapp/WEB-INF/ directory.

  2. Modify the web.xml:

    If you have a DispatcherServlet defined like this:

    <servlet>
    <servlet-name>myApp</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

    The default configuration file would be /WEB-INF/myApp-servlet.xml.

    To change the configuration file's location and/or name, set the contextConfigLocation parameter:

    <servlet>
    <servlet-name>myApp</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/new-config.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

  3. Move/Rename the Configuration File:

    Based on the setting above, you would place your Spring MVC configuration file in /WEB-INF/ and name it new-config.xml.

Remember that if you're using Spring Boot, the traditional web.xml configuration approach is not typically used. Instead, Java-based configurations and annotations are favored. If you're working within the Spring Boot paradigm, you'll configure your application differently.

  1. Customizing DispatcherServlet context configuration file in Spring:

    • Customize the DispatcherServlet context configuration file in a Spring MVC application.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/custom-servlet-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  2. Change DispatcherServlet XML configuration file name in Spring MVC:

    • Change the name of the DispatcherServlet XML configuration file.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/new-servlet-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  3. Spring MVC DispatcherServlet alternative configuration file:

    • Specify an alternative configuration file for the DispatcherServlet.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/alternative-servlet-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  4. How to set custom context configuration file for DispatcherServlet in Spring:

    • Set a custom context configuration file for the DispatcherServlet.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/custom-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  5. Modify DispatcherServlet context file name in Spring Framework:

    • Modify the name of the DispatcherServlet context configuration file.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/modified-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  6. Configuring DispatcherServlet with a different XML file in Spring:

    • Configure the DispatcherServlet with a different XML file.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/different-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  7. Override DispatcherServlet context configuration file in Spring MVC:

    • Override the DispatcherServlet context configuration file in a Spring MVC application.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/override-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  8. Specifying custom context file for DispatcherServlet in Spring:

    • Specify a custom context file for the DispatcherServlet.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/specify-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  9. DispatcherServlet initialization with a custom XML file name in Spring:

    • Initialize the DispatcherServlet with a custom XML file name.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/initialize-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

  10. Spring MVC DispatcherServlet contextConfigLocation alternative name:

    • Specify an alternative name for the contextConfigLocation parameter in the DispatcherServlet configuration.
    <!-- web.xml -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>customContextConfig</param-name>
        <param-value>/WEB-INF/alternative-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>
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