当在Eclipse / CounterClockWise中使用线程时，输出发送到控制台而不是REPL [英] Output is sent to console instead of REPL when using threads in Eclipse/CounterClockWise

问题描述

我从此指南尝试了此代码：

I tried this code from this guide:

(defn my-fn [ms]
  (println "entered my-fn")
  (Thread/sleep ms)
  (println "leaving my-fn"))

(let [thread (Thread. #(my-fn 1))]
  (.start thread)
  (println "started thread")
  (while (.isAlive thread)
    (print ".")
    (flush))
  (println "thread stopped"))

当我执行它时，部分输出显示在REPL中，另一部分显示在控制台因为我通常有它隐藏，因为我不使用它）。

When I execute it, part of the output shows up in the REPL, and the other part shows up in the console (which pops up since I usually have it hidden because I don't use it).

我想把所有的输出到REPL窗口，我怎么实现呢？ p>

I want to send all the output to the REPL window, how can I achieve that?

推荐答案

这是因为 * out * 。您可以手动绑定：

It's because *out* is not bound to REPL writer in new thread. You can bind it manually:

(let [thread (let [out *out*] 
               (Thread. #(binding [*out* out] 
                           (my-fn 1))))]
  (.start thread)
  (println "started thread")
  (while (.isAlive thread)
    (print ".")
    (flush))
  (println "thread stopped"))

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