regex Java拆分逗号分隔的字符串，但忽略引号，花括号和递归括号内的逗号

与其拆分，不如尝试使用模式匹配器提取数据。

String line = "valueA,{\"property1\":\"value1\",\"property2\":\"[[[1.5,1.7],[1.9,0.7],.....,[0.5,0.9]]]\",\"property3\":\"value3\"},valueB,{\"property1\":\"value1\",\"property2\":\"[[[1.5,1.7],[1.9,0.7],.....,[0.5,0.9]]]\",\"property3\":\"value3\"},valueC,{\"property1\":\"value1\",\"property2\":\"[[[1.5,1.7],[1.9,0.7],.....,[0.5,0.9]]]\",\"property3\":\"value3\"}";
Pattern pattern = Pattern.compile("([,]*(value[A-Z])),(\\{\"[\\w\":,\\[\\].]+\"\\})");
Matcher matcher = pattern.matcher(line);
List<String> data = new ArrayList<>();

while (matcher.find()) {
    String key = matcher.group(2);
    String value = matcher.group(3);

    data.add(key);
    data.add(value);

    System.out.println(key);
    System.out.println(value);
}
String[] array = data.toArray(new String[0]);

结果输出：

valueA
{"property1":"value1","property2":"[[[1.5,1.7],[1.9,0.7],.....,[0.5,0.9]]]","property3":"value3"}
valueB
{"property1":"value1","property2":"[[[1.5,1.7],[1.9,0.7],.....,[0.5,0.9]]]","property3":"value3"}
valueC
{"property1":"value1","property2":"[[[1.5,1.7],[1.9,0.7],.....,[0.5,0.9]]]","property3":"value3"}

回答来源：Stack Overflow