获取请求头数据 工具类

1. 工具类

import org.springframework.util.StringUtils;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Optional;

public class HeadUtil {
    public static HttpServletRequest getRequest() {
        return Optional.ofNullable(((ServletRequestAttributes) RequestContextHolder.getRequestAttributes())).orElseThrow(() -> new RuntimeException("未获取到当前请求信息")).getRequest();
    }

    /**
     * 获取Key获取Value
     * @return String
     */
    public static String getHeadKey(String key) {
        String value = HeadUtil.getRequest().getHeader(key);
        if (StringUtils.isEmpty(value)) {
            throw new RuntimeException("无法获取"+key);
        }
        return value;
    }
}
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2. demo

@RestController
@RequestMapping("head")
public class HeadController {

    @GetMapping
    public void test(){
        String headKey = HeadUtil.getHeadKey("test-test");
        System.out.println(headKey);
    }
}
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