如何修复直接写入HTTP标头输出的Findbugs HTTP参数 [英] How to fix Findbugs HTTP parameter directly written to HTTP header output

问题描述

我有一个类RequestFilter和@Override方法doFilterInternal.当我添加Header进行响应时，findbugs会显示直接写入HTTP标头输出的错误HTTP参数.那么我该如何解决这个问题呢?谢谢大家.

I have a class RequestFilter and @Override methods doFilterInternal. And when i add Header for response, findbugs show error HTTP parameter directly written to HTTP header output. So how can i fix this problem? Thanks all.

String rqHd = request.getHeader("Access-Control-Request-Headers");    
response.addHeader("Access-Control-Allow-Headers", rqHd); // findbugs error here

推荐答案

我认为这是HRS_REQUEST_PARAMETER_TO_HTTP_HEADER错误，您可以这样解决:

I think this is HRS_REQUEST_PARAMETER_TO_HTTP_HEADER error, and you can fix it like that:

String rqHd = request.getHeader("Access-Control-Request-Headers"); 
if(rqHd != null){
    String rqHeader = URLEncoder.encode(rqHd,StandardCharsets.UTF_8.displayName());   
    response.addHeader("Access-Control-Allow-Headers", rqHeader);
}

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