Freaks City

Insert Operations Retrieving Auto-Generated Primary Keys <insert id="saveCustomer" useGeneratedKeys="true" keyProperty="customerId" parameterType="com.example.domain.Customer"> INSERT INTO customer(name, points, created_at) VALUES (#{name}, #{points}, #{createdAt}) </insert> Batch ...

When deploying Spring Boot applications to production, it’s essential to completely disable the Swagger UI to avoid exposing API documentation and to pass automated security scans. This article outlines a practical approach to turn off Swagger, including hiding any residual Swagger‑related endpoints. Step 1: Disable the Swagger Docket bean via ...

Define a custom interceptor in bean configuration file <mvc:interceptors> <!-- Custom interceptor declaration --> <bean class="com.example.interceptors.CustomInterceptor"/> </mvc:interceptors> Implementation of the interceptor class package com.example.interceptors; import javax.servlet.http.HttpServl ...

Struts2 interceptors are a core mechanism for implementing cross-cutting concerns in web applications, leveraging aspect-oriented programming principles. Similar in concept to servlet filters, interceptors execute logic before and after an action method is invoked. However, unlike filters that operate at the servlet container level, Struts2 int ...

Creating a Custom Interceptor by Extending HandlerInterceptorAdapter Implementing the Interceptor Class Create a new class that extends HandlerInterceptorAdapter and annotate it with @Component: package com.example.interceptor; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Component; import org. ...

When implementing request encryption that includes payload data, the conventional approach involves converting the request body to a string format before encryption. Here's a typical pattern: String payloadString = ModelOptionsUtils.toJsonString(payload); String hashedRequestPayload = sha256Hex(payloadString); // Add hashedRequestPayload to hea ...

Reading HTTP request parameters within a Spring Boot HandlerInterceptor presents a speicfic challenge: the servlet input stream can only be consumed once. If a downstream controller or another filter reads the body, the interceptor will encounter an empty stream. To resolve this, the request must be wrapped to cache the payload, allowing multip ...

Spring MVC provides two primary mechanisms for intercepting and processing all incoming requests: servlet filters and handler interceptors. Each serves distinct purposes and operates at different layers of the application. 1. Using a Servlet Filter A servlet filter operates before request reaches the DispatcherServlet, allowing you to inspect ...

@Intercepts({ @Signature(type = StatementHandler.class, method = "prepare", args = {Connection.class, Integer.class}) }) @Component public class SoftDeleteInterceptor implements Interceptor { @Override public Object intercept(Invocation invocation) throws Throwable { StatementHandler handler = (StatementHandler) in ...

JSON Web Tokens consist of three distinct segments: a header defining cryptographic parameters, a payload carrying assertions, and a signature ensuring integrity. Implementing token validation in a Spring ecosystem requires orchestrating token generation, externalized configuration, request interception, and MVC registration. The following guid ...