How can the deprecated WebSecurityConfigurerAdapter in Spring Boot 2.7.0 be upgraded in Spring Security?

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The WebSecurityConfigurerAdapter class in Spring Boot 2.7.0 has been replaced with the equivalent SecurityConfigurer interface. To upgrade your code, you can follow these steps:

1. Remove the use of WebSecurityConfigurerAdapter and instead implement the appropriate SecurityConfigurer interface.

2. Replace the configure(HttpSecurity http) and configure(WebSecurity web) methods with the appropriate configure method for the SecurityConfigurer interface you are using.

3. In the configure method, use the methods provided by the SecurityConfigurer interface to configure the security of your application.

4. If you are using custom authentication and authorization logic, you may need to update your code to work with the new SecurityConfigurer interface.

Here's an example of how to upgrade your code:

Before:

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // Configure web security
    }

    @Override
    public void configure(WebSecurity web) throws Exception {
        // Configure web security
    }
}

After:

@Configuration
@EnableWebSecurity
public class SecurityConfig implements SecurityConfigurer<WebSecurityConfigurerAdapter, HttpSecurity> {

    @Override
    public void configure(HttpSecurity http) throws Exception {
        // Configure web security
    }

    @Override
    public void configure(WebSecurityConfigurerAdapter web) throws Exception {
        // Configure web security
    }
}

In the example above, we've replaced the use of WebSecurityConfigurerAdapter with the SecurityConfigurer interface. We've also updated the configure method to use the appropriate SecurityConfigurer methods.

Note that this is just an example and your code may need additional changes based on your specific setup and requirements.