需要改返回值对象的请求头给CDN做缓存

作者追问:2025-03-18 17:58

就是我要在返回结果上加一个请求头去给我的CND 去做缓存目的就是返回体上加一个头部

回答: 2025-03-18 17:58

如果是全局的话，加一个拦截器，大概代码是这样，注册到拦截器里生效

 public class CacheControlInterceptor implements HandlerInterceptor {
 
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        // 在请求处理之前，可以进行一些预处理工作
        return true;
    }
 
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        // 在请求处理后，添加 Cache-Control 头部
        response.setHeader("Cache-Control", "max-age=300, public, stale-while-revalidate=120");
    }
 
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        // 请求完成后的一些清理工作
    }
}

作者追问:2025-03-18 17:58

我这边引入官方的缓存注解但是好像不能读取缓存的时候 cache对象没有注册进来

4.1.0

作者追问:2025-03-18 17:58

这个是配置

作者追问:2025-03-18 17:58

回答: 2025-03-18 17:58

等这里初始化后看看呢

CleanShot20250319141936@2x.png

回答: 2025-03-18 17:58

试试这个提交，安装tool后看看是否生效：https://center.javablade.com/blade/BladeX-Tool/commit/eb877b72d4cf3a88091fbd93d22c718fc4c08ce8

作者追问:2025-03-18 17:58

这边是启动后的断点、调用的时候还是cache还是为null

回答: 2025-03-18 17:58

这个提交再确认下：https://center.javablade.com/blade/BladeX-Tool/commit/eb877b72d4cf3a88091fbd93d22c718fc4c08ce8

作者追问:2025-03-18 17:58

我按照官方的改了但是把启动之后

org.springframework.beans.factory.BeanCreationNotAllowedException: Error creating bean with name 'applicationTaskExecutor': Singleton bean creation not allowed while singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:220)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:335)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:205)

at org.springframework.context.event.AbstractApplicationEventMulticaster.retrieveApplicationListeners(AbstractApplicationEventMulticaster.java:265)

at org.springframework.context.event.AbstractApplicationEventMulticaster.getApplicationListeners(AbstractApplicationEventMulticaster.java:222)

at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:145)

at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:451)

at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:457)

at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:384)

at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1130)

at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1093)

at org.springframework.cloud.context.named.NamedContextFactory.destroy(NamedContextFactory.java:114)

at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:211)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1202)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1195)

at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1186)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:637)

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754)

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:456)

at org.springframework.boot.SpringApplication.run(SpringApplication.java:335)

at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:149)

at org.springblade.core.launch.BladeApplication.run(BladeApplication.java:59)

at org.springblade.pay.PayApplication.main(PayApplication.java:13)

2025-03-19 14:59:05.581 WARN 20616 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception thrown from ApplicationListener handling ContextClosedEvent