ThinkerQAQ

NOTE

Spring MVC Source Flow

Source-level request flow through DispatcherServlet, HandlerMapping, HandlerAdapter, interceptors, argument/return handlers, and exception processing.

JavaCreated Updated 1 min readhistorical

This is a historical learning note and may contain outdated or incomplete understanding.

A durable Spring MVC request flow is:

  1. Servlet container invokes DispatcherServlet;
  2. a HandlerMapping finds the mapped handler and interceptors;
  3. a compatible HandlerAdapter invokes the handler;
  4. argument resolvers/binders/converters build method arguments;
  5. controller executes;
  6. return-value handlers/message converters or view resolution build the response;
  7. exception resolvers handle eligible failures;
  8. interceptor completion hooks run.

Exact strategy classes and method names evolve; this pipeline is the stable mental model for source debugging.