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  • springboot中@webfilter注解的filter时注入bean都是null

    在使用@Webfilter注解Filter的情况下,不上外部tomcat时是没有问题的。但是在tomcat下运行时,filter中注入的bean就都是null

    解决办法:

    一:去掉@Webfilter注解

    public class GeneralFilter implements Filter {
    
        
        @Autowired
        private SettingRemote settingRemote; //注入
        
        ....
    
    }

     二: 新增一个配置类,用来手工创建filter的bean

    @Configuration
    public class WebMvcConfig implements WebMvcConfigurer {
    
        @Bean
        public Filter generalFilter() {
            return new GeneralFilter();
        }
    
        @Bean
        public FilterRegistrationBean uploadFilterRegistration() {
            FilterRegistrationBean registration = new FilterRegistrationBean();
            registration.setFilter(new DelegatingFilterProxy("generalFilter"));
            registration.addUrlPatterns("/*");
            registration.setName("generalFilter");
            registration.setOrder(1);
            return registration;
        }
    }

    之后注入的业务bean就不会是null

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  • 原文地址:https://www.cnblogs.com/zsg88/p/10260305.html
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