SpringMVC实战篇6：SpringMVC源码解析四(处理适配器HandlerAdapter的解析)

╰+攻爆jí腚メ 2022-11-29 14:29 107阅读 0赞

### HandlerAdapter继承关系图: ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc1NTUz_size_16_color_FFFFFF_t_70][]

### **DispatcherServlet\#getHandlerAdapter()方法实现:** ###

protected HandlerAdapter getHandlerAdapter(Object handler) throws ServletException {
        if (this.handlerAdapters != null) {
            for (HandlerAdapter ha : this.handlerAdapters) {
                if (logger.isTraceEnabled()) {
                    logger.trace("Testing handler adapter [" + ha + "]");
                }
                //如果该适配器支持当前handler, 则直接返回该适配器
                if (ha.supports(handler)) {
                    return ha;
                }
            }
        }
        throw new ServletException("No adapter for handler [" + handler +
                "]: The DispatcherServlet configuration nee

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc1NTUz_size_16_color_FFFFFF_t_70]: /images/20221124/11a43cfdbd4d487b8bd73b473f3c05e9.png

SpringMVC实战篇6：SpringMVC源码解析四(处理适配器HandlerAdapter的解析)

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