如何通过nREPL查看音质日志？

Question

我使用Timbre来登录Clojure。当我通过nREPL连接到生产实例时，除非我通过SSH连接到机器并运行journalctl，否则我看不到进程日志。

如何对音色日志进行多路复用，使其在nREPL中可见？

我怀疑我需要修改*out*变量。

Answer 1

在这里找到了答案：https://stackoverflow.com/a/38294275/198927

;; run this code on the repl where you wish to see all output.
;; You will need to add the dependency [commons-io "2.4"] to your
;; leiningen dependencies.
(import 'org.apache.commons.io.output.WriterOutputStream)
(import 'java.io.PrintStream)

;; First, we redirect the raw stdout of the server to this repl
(System/setOut (PrintStream. (WriterOutputStream. *out*)
                             true)) ;; Auto-flush the PrintStream

;; Next, we alter the root binding of *out* so that new threads
;; send their output to THIS repl rather than the original System/out.
(alter-var-root #'*out* (fn [_] *out*))

;; Now the snippets should both send output to this repl:
(.println System/out "Hello stdout.")
(.start (Thread. #(println "Hello from a new thread.")))