杰克逊没有逃脱JSON中的引用 [英] Jackson not escaping quotes in JSON

问题描述

我正在尝试将json放在java中的javascript文件中，但是当我将json写入字符串时，该字符串似乎不是javascript的有效json;它缺少一些逃脱。 （这发生在json中的一个字符串中，我将其格式化为faux json。）

I'm trying to put a json in a javascript file in java, but when I write the json to a string, the string doesn't appear to be a valid json for javascript; it is missing some escapes. (This is happening in a string in the json which I formatted as a faux json.)

例如，这将是我的javascript文件中的有效json：

For example, this would be a valid json in my javascript file:

{
   "message": 
   "the following books failed: [{\"book\": \"The Horse and his Boy\",\"author\": \"C.S. Lewis\"}, {\"book\": \"The Left Hand of Darkness\",\"author\": \"Ursula K. le Guin\"}, ]"
}

这是我得到的，双引号未被转义的地方：

Here's what I get, though, where the double quotes aren't escaped:

{
   "message": 
   "The following books failed: [{"book": "The Horse and his Boy","author": "C.S. Lewis"}, {"book": "The Left Hand of Darkness","author": "Ursula K. le Guin"}, ]"
}

当我这样做时，我得到第二个结果：

I get the second result when I do this:

new ObjectMapper().writer().writeValueAsString(booksMessage);

但是当我将它直接写入带有jackson的文件时，我得到了第一个好结果：

But when I write it directly to a file with jackson, I get the first, good result:

new ObjectMapper().writer().writeValue(fileToWriteTo, booksMessage);

那么为什么jackson在写入文件时会有不同的逃避方式，如何让它像写给字符串的时间对我来说？

So why does jackson escape differently when writing to a file, and how do I get it to escape like that for me when writing to a string?

推荐答案

我添加了

booksJson = Pattern.compile("\\\\").matcher(booksJson).replaceAll("\\\\\\\\");

它会转义所有转义字符。这样当我将它写入文件并删除转义时，我仍然有我需要的转义。事实证明我真正的问题是如何在没有删除Java转义的情况下写入文件。

which escapes all the escape characters. That way when I write it to file and it removes the escapes, I still have the escapes I need. So turns out my real question was how to write to file without Java escapes being removed.

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