将 Split 元素分组到自己单独的数组中

Question

这是我来自 .txt 文件的数据：

**S12*T0*0889*B*99*N1C0~**S12*T0*0880*B*99*N1C0~

这是我从 .txt 文件中读取数据的代码：

{
            in = new BufferedReader(new FileReader("2.txt"));
            String read = null;
            while ((read = in.readLine()) != null) {
            read = in.readLine();
            String[] splited = read.split("\*+");
            PreparedStatement ps = null;
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");//Data Source Driver
            Connection con=DriverManager.getConnection("jdbc:odbc:testing");//Data Connection
            for (String part : splited){    
                    ps=con.prepareStatement("insert into testing (d3)values('"+part+"')");//inserting data
                    System.out.println(part);//printing inserted data
                    System.out.println("inserted");//insertion confirmation
                    ps.executeUpdate();
                }

根据我的代码，我已经能够在“*”之间拆分数据并将其存储在数组中（拆分）。结果在数据库中，只插入了 1 列。

“*”之间的数据在数据库中属于单独的列。

Problem 1: I need to separate data between "~" first and then separate the data between "*". Problem 2: i need to group the separated data into arrays so that i can insert into database later(every data has its own column in the database).

Expected Output:In Database(ms-Access)

|d1 |d2 |d3|d4| d5 |<--列

S12 |T0 |S12|B |99|N1C0|<--插入元素

Answer 1

所以像这样：

public class Answer28535326 {

private static String input = "**S12*T0*0889*B*99*N1C0~**S12*T0*0880*B*99*N1C0~";

public static void main(String[] args) 
{
    String[] records = input.split("~");
    for (String record : records)
    {
        System.out.println(record);
        StringTokenizer tokenizer = new StringTokenizer(record, "*", false);

        while(tokenizer.hasMoreTokens())
        {
            System.out.println(tokenizer.nextToken());
        }

        System.out.println("");
    }       
}

}

Answer 2

尝试批量添加它们

public class Answer28535326 {

  private static void addRows(PreparedStatement ps, String line) throws SQLException {
    String[] records = line.split("~");
    for (String record : records) {
      String[] values = record.replaceAll("^\*+", "").split("\*+");
      for (int i = 0; i < values.length; i++) {
        ps.setString(i + 1, values[i]);
      }
      ps.addBatch();
    }
  }

  public static void main(String[] args) throws Exception {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");// Data Source Driver
    try ( Connection con = DriverManager.getConnection("jdbc:odbc:testing") ) {
      try ( PreparedStatement ps = con.prepareStatement("insert into testing (d1, d2, d3, d4, d5, d6) values(?, ?, ?, ?, ?, ?)") ) {
        try (BufferedReader in = new BufferedReader(new FileReader("2.txt"))) {
          String read = null;
          while ((read = in.readLine()) != null) {
            read = in.readLine();
            addRows(ps, read);
          }
          ps.executeBatch();
        }
      }
    }
  }
}

编辑：按要求进行解释

原始代码是将每一列作为新行插入数据库。 解决方案是使用准备好的语句 all 的占位符 table
因为每行可能有 1+ 条记录，所以添加了一个方法每行处理多个记录并将它们添加为一个批次

将 Split 元素分组到自己单独的数组中

Grouping the Split elements into own separate arrays

java

arrays

syntax

split

arraylist

|d1 |d2 |d3|d4| d5 |<--列