参考：防重提交 (opens new window)

配置过滤器

ruoyi-framework/src/main/java/com/ruoyi/framework/config/FilterConfig.java

@Bean
public FilterRegistrationBean someFilterRegistration()
{
    FilterRegistrationBean registration = new FilterRegistrationBean();
    registration.setFilter(new RepeatableFilter());
    registration.addUrlPatterns("/*");
    registration.setName("repeatableFilter");
    registration.setOrder(FilterRegistrationBean.LOWEST_PRECEDENCE);
    return registration;
}

具体过滤器

ruoyi-common/src/main/java/com/ruoyi/common/filter/RepeatableFilter.java

构建可重复读取inputStream的request

原因是因为这里过滤器校验的时候会读取一次，后面controller 的时候@RequestBody 还会在读取。所以要构建可重复读取inputStream的request 。

@RepeatSubmit 防重注解

ruoyi-common/src/main/java/com/ruoyi/common/annotation/RepeatSubmit.java

注意这里用的是拦截器，而不是切面

注册拦截器

/**
 * 自定义拦截规则
 */
@Override
public void addInterceptors(InterceptorRegistry registry)
{
    registry.addInterceptor(repeatSubmitInterceptor).addPathPatterns("/**");
}

拦截器

ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/RepeatSubmitInterceptor.java

验证是否重复提交由子类实现具体的防重复提交的规则

ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/impl/SameUrlDataInterceptor.java

资料

SpringBoot自定义拦截器interceptor使用详解 (opens new window)