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What are some restrictions on using delegating filter proxy in Spring security?

Deepika Sahu answered on December 24, 2022 Popularity 1/10 Helpfulness 1/10

answer What are some restrictions on using delegating filter proxy in Spring security?

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What are some restrictions on using delegating filter proxy in Spring security?

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In order for DelegatingFilterProxy to work as expected, there are some rules and restrictions which you need to follow like

1) You must declare delegating filter proxy to your web.xml as a filter.

2) The target bean must implement the javax.servlet.Filter interface.

3) The target bean must have the same name as that in the filter-name element.

4) You can also specify a "targetBeanName" filter init-param in web.xml to specify the name of the target bean in the Spring application context.

Read more: https://javarevisited.blogspot.com/2021/02/spring-security-interview-questions-answers-java.html#ixzz7oQ5ZdBbN

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Contributed on Dec 24 2022

Deepika Sahu

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What is the delegating filter proxy in Spring Security?

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The delegating filter proxy is a generic bean that provides a link between web.xml and application-Context.xml. Spring security uses filters to implement several security related cross-cutting concerns like authentication and authorization. 

Since filters need to be declared in the web.xml so that the Servlet container can invoke them before passing the request to the actual Servlet class.

In Spring security, these filters are also Spring bean so that they can take advantage of Spring's dependency injection features, hence they are declared inside the Spring configuration file and a delegating filter proxy (DelegatingFilterProxy) is declared on their behalf on web.xml as filter as shown below:


Read more: https://javarevisited.blogspot.com/2021/02/spring-security-interview-questions-answers-java.html#ixzz7oQ5D91ic

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Contributed on Dec 24 2022

Deepika Sahu

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What are some restrictions on using delegating filter proxy in Spring security?

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