Spring Add new header method #28309

@Override
public DefaultRequestBodyUriSpec header(String headerValue) {
    String[] header = headerValue.split(":");
    getHeaders().add(header[0], header[1]);
    return this;
}

Users can add headers using only one parameter.

If there are any mistakes, please comment. Thanks!

Comment From: pivotal-cla

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Comment From: pivotal-cla

@SonYoonSeok Thank you for signing the Contributor License Agreement!

Comment From: sbrannen

Hi @SonYoonSeok,

Thanks for submitting your first PR for the Spring Framework.

Please note, however, that this functionality is already available via org.springframework.web.reactive.function.client.DefaultWebClient.DefaultRequestBodyUriSpec.header(String, String...).

The first string is the header name, and subsequent strings are the header values.

In light of that, I am closing this PR.