在 Java 中使用分隔符逗號分隔帶有嵌套大括號的字符串

Question

嘗試使用逗號作為字符串中的分隔符進行拆分並添加到字符串數組中，但在使用正則表達式拆分字符串時遇到問題。

String[] stringParts = str1.split(",(?![^\\[]*\\])");

        for (int i=0; i<stringParts.length; i++){
            stringParts[i] = stringParts[i].trim();//remove trailing leading spaces.
        }
        //System out
        for (String s:stringParts){
            System.out.println(s);
        }

輸入字符串

String str="1, two, {\"\"Customization\"\":{\"\"EMPLOYEEID\"\":\"\"EMPID001\"\",\"\"MANAGER_ID\"\":\"\"MNGID001\"\",\"\"DEPARTMENT\"\":\"\"IT\"\"},\"\"OTHERDETAILS\"\":{\"\"GENDER\"\":\"\"M\"\",\"\"DESIGNATION\"\":\"\"SENIOR\"\",\"\"TEAM\"\":\"\"QA\"\"}}, 8, nine,{{\"COMPANYNAME\":\"XYZ Ind Pvt Ltd\"},{[ten,{\"11\":\"12\"},{\"thirteen\":14}]}},\"fifteen\",16";

需要 Output

1
two
{""Customization"":{""EMPLOYEEID"":""EMPID001"",""MANAGER_ID"":""MNGID001"",""DEPARTMENT"":""IT""},""OTHERDETAILS"":{""GENDER"":""M"",""DESIGNATION"":""SENIOR"",""TEAM"":""QA""}}
8
nine
{{"COMPANYNAME":"XYZ Ind Pvt Ltd"},{[ten,{"11":"12"},{"thirteen":14}]}}
fifteen
16

Answer 1

這不是正則表達式的設計目的。 您需要創建一個解析器。

或者你可以做類似的事情：

public static void main(String[] args) {
    String str = "1, two, {\"\"Customization\"\":{\"\"EMPLOYEEID\"\":\"\"EMPID001\"\",\"\"MANAGER_ID\"\":\"\"MNGID001\"\",\"\"DEPARTMENT\"\":\"\"IT\"\"},\"\"OTHERDETAILS\"\":{\"\"GENDER\"\":\"\"M\"\",\"\"DESIGNATION\"\":\"\"SENIOR\"\",\"\"TEAM\"\":\"\"QA\"\"}}, 8, nine,{{\"COMPANYNAME\":\"XYZ Ind Pvt Ltd\"},{[ten,{\"11\":\"12\"},{\"thirteen\":14}]}},\"fifteen\",16";
    StringTokenizer st = new StringTokenizer(str, ",", true);
    int bracketCount = 0;
    while (st.hasMoreTokens()) {
        String token = st.nextToken();
        long brackets = token.chars().map(ch -> (ch == '{' ? 1 : (ch == '}' ? -1 : 0))).sum();
        bracketCount += brackets;
        if (bracketCount == 0 && ",".equals(token)) {
            System.out.println("");
        } else {
            System.out.print(token);
        }
    }
}

• 取字符串並在 , 上拆分,將分隔符保留為 output 令牌
• 計算打開和關閉的次數{ } 。 確保所有括號都已關閉。
• 如果所有{ }都已關閉，則移至下一行