使用正则表达式拆分简单的JSON结构 [英] Split a simple JSON structure using a regular expression

问题描述

我以前从未使用过正则表达式，并且正在寻找一个包含一个或多个JSON对象的文件，这些JSON对象之间没有逗号分隔.因此，我需要将它们在} {"之间分割，并保持两个大括号.字符串如下所示:

I've never used a regex before and I am looking to split up a file that has one or more JSON objects, the JSON objects are not separated by a comma. So I need to split them between "}{" and keep both curly braces. This is what the string looks like:

{id:"123",name:"myName"}{id:"456",name:"anotherName"}

我想要一个像使用string.split()

["{id:"123",name:"myName"}", "{"id:"456",name:"anotherName"}"]

推荐答案

如果您的对象不比您显示的对象复杂，则可以使用

If your objects aren't more complex than what you show, you may use lookarounds like this :

String[] strs = str.split("(?<=\\})(?=\\{)");

示例:

String str = "{id:\"123\",name:\"myName\"}{id:\"456\",name:\"yetanotherName\"}{id:\"456\",name:\"anotherName\"}";
String[] strs = str.split("(?<=\\})(?=\\{)");
for (String s : strs) {
    System.out.println(s);          
}

打印

{id:"123",name:"myName"}
{id:"456",name:"anotherName"}
{id:"456",name:"yetanotherName"}

如果您的对象更复杂，则正则表达式可能无法正常工作，您必须解析字符串.

If your objects are more complex, a regex wouldn't probably work and you would have to parse your string.

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