java 获取 request

第一种，通过springmvc,参数注入

@PostMapping(value = "/xxx")
public Result xxx(HttpServletRequest request) {
    
}
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第二种，通过RequestContextHolder获取
这种方式在项目任何地方都可以拿到，只要Request已经注入

 private static HttpServletRequest getRequest() {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        return request;
}

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