ring:以字符串形式读取http请求的正文 [英] ring: read body of a http request as string

问题描述

在环形服务器内部处理http请求时，请求数据的正文存储在键:body 中的request-hashmap中.例如，如下所示:

When handling a http request inside a ring server, the body of the request-data is stored in the request-hashmap in the key :body. For instance as followed:

#object[org.eclipse.jetty.server.HttpInputOverHTTP 0x2d88a9aa "HttpInputOverHTTP@2d88a9aa"] 

以防万一，我只是对原始文本感兴趣，我是如何读取该对象的?

In case, I'm just interested in the raw text, how an I read out this object?

推荐答案

您可以使用

You can use ring.util.request/body-string to get the request body as a String.

(body-string request) 

您需要记住， InputStream 只能被读取一次，因此您可能更喜欢将原来的:body 替换为读取的 String 您以后可以再次访问它:

You need to remember that InputStream can be read only once so you might prefer replace the original :body with the read String instead so you can later access it again:

(defn wrap-body-string [handler]
  (fn [request]
    (let [body-str (ring.util.request/body-string request)]
      (handler (assoc request :body (java.io.StringReader. body-str))))))

并添加中间件以包装处理程序:

And add your middleware to wrap your handler:

(def app
  (wrap-body-string handler))

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