Java -- 将类似数组的字符串转换为数组

Posted 2021-12-05 CodeJiao

1. 将类似数组的字符串转换为数组

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1.1 方法

    /**
     * 将类似于[1,2,3,4,5]字符串 解析为数组
     */
    public static String[] spiltArr(String arrStr) {
        // 去掉字符串所有的空格字符
        arrStr = arrStr.replaceAll("\\\\s*", "");
        // 如果arrStr=[]返回[]
        if (arrStr.length() <= 2) {
            return new String[]{};
        }
        // 如果arrStr=[1]返回[1]
        else if (arrStr.length() == 3) {
            return new String[]{String.valueOf(arrStr.charAt(1))};
        }
        // [1,2]==>[1,2]
        else {
            String[] splits = arrStr.split(",");
            splits[0] = splits[0].substring(1);
            splits[splits.length - 1] = splits[splits.length - 1].substring(0, splits[splits.length - 1].length() - 1);
            return splits;
        }
    }

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1.2 测试代码

    public static void main(String[] args) {
        System.out.println(Arrays.toString(spiltArr("[0]")));
        System.out.println(Arrays.toString(spiltArr("[1]")));
        System.out.println(Arrays.toString(spiltArr("[1  ]")));
        System.out.println(Arrays.toString(spiltArr("[1       ,2]")));
        System.out.println(Arrays.toString(spiltArr("[1 , 3,     6]")));
        System.out.println(Arrays.toString(spiltArr("  [  1234567  ,37 ,4,5,6,  128900 ]  ")));
    }

运行结果：

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