问题描述
我想在其他使用JSON的程序中使用某些MongoDB命令的原始输出.当我在mongo shell中运行命令时，它们表示扩展JSON ， "shell模式"中的字段，并带有特殊字段，例如NumberLong，Date和Timestamp.我在文档中看到了严格模式"的参考，但是我看不到在外壳程序上打开它的方法，或者在 do 输出严格JSON的情况下运行诸如db.serverStatus()之类的命令的方法，就像mongodump.如何强制Mongo输出符合标准的JSON?
I want to consume the raw output of some MongoDB commands in other programs that speak JSON. When I run commands in the mongo shell, they represent Extended JSON, fields in "shell mode", with special fields like NumberLong , Date, and Timestamp. I see references in the documentation to "strict mode", but I see no way to turn it on for the shell, or a way to run commands like db.serverStatus() in things that do output strict JSON, like mongodump. How can I force Mongo to output standards-compliant JSON?
有 其他 ，但我找不到他们的回答特别令人满意.
There are several other questions on this topic, but I don't find any of their answers particularly satisfactory.
推荐答案
MongoDB shell使用Java语言，因此答案很简单:使用JSON.stringify().如果您的命令是db.serverStatus()，则只需执行以下操作:
The MongoDB shell speaks Javascript, so the answer is simple: use JSON.stringify(). If your command is db.serverStatus(), then you can simply do this:
JSON.stringify(db.serverStatus())
这不会为每个字段({ "floatApprox": <number> }而不是{ "$numberLong": "<number>" })输出正确的严格模式"表示形式，但是如果您关心的是取出符合标准的JSON，则可以技巧.
This won't output the proper "strict mode" representation of each of the fields ({ "floatApprox": <number> } instead of { "$numberLong": "<number>" }), but if what you care about is getting standards-compliant JSON out, this'll do the trick.
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