应用程序在这方面会有不同的需求,但一种策略可以是使用Throwable->map:
(Throwable->map
(ex-info
"The Holy Grail me be found in the castle of-aaaaaaaaaaaaaaaarrrgh"
{:film "Monty Python and the Holy Grail (1975)"}
(IllegalStateException. "aaaaargh")))
=>
{:cause "aaaaargh",
:via
[{:type clojure.lang.ExceptionInfo,
:message
"The Holy Grail me be found in the castle of-aaaaaaaaaaaaaaaarrrgh",
:data {:film "Monty Python and the Holy Grail (1975)"},
:at [clojure.core$ex_info invokeStatic "core.clj" 4739]}
{:type java.lang.IllegalStateException,
:message "aaaaargh",
:at [user$eval13 invokeStatic "NO_SOURCE_FILE" 2]}],
:trace
[[user$eval13 invokeStatic "NO_SOURCE_FILE" 2]
[user$eval13 invoke "NO_SOURCE_FILE" 2]
[clojure.lang.Compiler eval "Compiler.java" 7062]
[clojure.lang.Compiler eval "Compiler.java" 7025]
[clojure.core$eval invokeStatic "core.clj" 3206]
[clojure.core$eval invoke "core.clj" 3202]
[clojure.main$repl$read_eval_print__8572$fn__8575
invoke
"main.clj"
243]
[clojure.main$repl$read_eval_print__8572 invoke "main.clj" 243]
[clojure.main$repl$fn__8581 invoke "main.clj" 261]
[clojure.main$repl invokeStatic "main.clj" 261]
[clojure.main$repl_opt invokeStatic "main.clj" 325]
[clojure.main$main invokeStatic "main.clj" 424]
[clojure.main$main doInvoke "main.clj" 387]
[clojure.lang.RestFn invoke "RestFn.java" 397]
[clojure.lang.AFn applyToHelper "AFn.java" 152]
[clojure.lang.RestFn applyTo "RestFn.java" 132]
[clojure.lang.Var applyTo "Var.java" 702]
[clojure.main main "main.java" 37]]}
如果你想自定义异常的数据表示,我建议你看一下Throwable->map 的来源,以了解如何获取相关信息。