将List<Map<String，Object>>转换为String[][]

List<Map<String, Object>> dataList = ...; // 假设这是要转换的List<Map<String, Object>>数据

// 确定二维数组的大小
int rows = dataList.size();
int cols = 0;
if (rows > 0) {
    cols = dataList.get(0).size();
}

// 创建二维数组
String[][] result = new String[rows][cols];

// 遍历List<Map<String, Object>>
for (int i = 0; i < rows; i++) {
    Map<String, Object> map = dataList.get(i);
    String[] row = new String[cols];

    // 遍历Map的键值对
    int j = 0;
    for (Map.Entry<String, Object> entry : map.entrySet()) {
        Object value = entry.getValue();
        row[j] = String.valueOf(value);
        j++;
    }

    // 将一维数组存储到二维数组
    result[i] = row;
}

// 返回转换后的二维数组
return result;