Top Java Quiz Questions ☕️

Exploring the Filter in Spring Boot

In my journey with Java and Spring Boot, I’ve found the doFilter() method in filters to be an essential tool for handling requests and responses. Let me share some insights!

Key Points:

- Filters can modify both the request and response objects as they pass through the filter chain. 🌀
- doFilter() takes three parameters:
- ServletRequest: The incoming request data 📝
- ServletResponse: The response data being sent back
- FilterChain: Used to invoke the next filter in the chain 🔗

Example Code:

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) 
        throws IOException, ServletException {
    // Pre-processing logic
    System.out.println("Before the request is processed");

    // Continue the filter chain
    chain.doFilter(request, response);

    // Post-processing logic
    System.out.println("After the request is processed");
}

Using filters effectively allows you to centralize logic like logging or authentication without cluttering your controllers. Happy coding! 🚀

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1.1K viewsDec 16, 2024 at 10:00

Exploring the Filter in Spring Boot

In my journey with Java and Spring Boot, I’ve found the doFilter() method in filters to be an essential tool for handling requests and responses. Let me share some insights!

Key Points:

- Filters can modify both the request and response objects as they pass through the filter chain. 🌀
- doFilter() takes three parameters:
- ServletRequest: The incoming request data 📝
- ServletResponse: The response data being sent back
- FilterChain: Used to invoke the next filter in the chain 🔗

Example Code:

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) 
        throws IOException, ServletException {
    // Pre-processing logic
    System.out.println("Before the request is processed");

    // Continue the filter chain
    chain.doFilter(request, response);

    // Post-processing logic
    System.out.println("After the request is processed");
}

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