跨域访问org.springframework.web.bind.MissingRequestHeaderException: Missing request header
时间: 2024-04-25 14:22:55 浏览: 21
'token' for method parameter of type String的解决方案是什么?
回答: 当出现org.springframework.web.bind.MissingRequestHeaderException: Missing request header 'token' for method parameter of type String的错误时,可以采取以下解决方案。首先,我们可以使用@RequestHeader注解来指定请求头的名称,例如@RequestHeader("token")。这样Spring MVC会自动将请求头中的token值绑定到方法参数中的String类型参数上。其次,Spring MVC使用HandlerMethodArgumentResolver策略接口来定义处理器方法参数解析器。对于@RequestHeader注解,它使用的是RequestHeaderMapMethodArgumentResolver和RequestHeaderMethodArgumentResolver。RequestHeaderMethodArgumentResolver继承自抽象类AbstractNamedValueMethodArgumentResolver,它负责解析请求头中的值并将其绑定到方法参数上。\[1\]\[2\]\[3\]
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