Question

这是我想要阅读的文件：

20140901|2X-PRG-CZ|PRG|2X|2X-PRG-CZ|||TYPEX||QXTXGXS|QS|QS-PRG-GW|PRG|TYPEB|Y|2|98|0|0
20140901|2X-PRG-CZ|PRG|2X|2X-PRG-CZ|||TYPEX||QXTXGXS|OK|OK-PRG-MQ|PRG|TYPEB|Y|14|672|0|0
20140901|2X-PRG-CZ|PRG|2X|2X-PRG-CZ|||TYPEX||QXTXGXS|EK|EK-PRG-KK|PRG|TYPEB|Y|1|48|0|0
20140901|XS-SIN-OL|MAD|3V|3V-MAD-OO|||STXOL||QXTXGXS|7X|7X-BRU-EP|BRU|TYPEB|Y|1|59|0|0
20140901|XS-SIN-OL|MAD|3V|3V-MAD-OO|||STXOL||QXTXGXS|3V|3V-LGG-SP|LGG|TYPEB|Y|1|193|0|0
20140901|XS-SIN-OL|MAD|3V|3V-MAD-OO|||STXOL||QXTXGXS|7X|7X-PAR-EP|PAR|TYPEB|Y|1|59|0|0
20140901|XS-SIN-OL|MAD|3V|3V-MAD-OO|||STXOL||QXTXGXS|YA|YA-MAD-GS|MAD|TYPEB|Y|4|923|0|0

我的独立程序是这样的..

package com.dbConn;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

public class DbConnection {

public static void main(String[] args) {
    int updateQuery = 0;

    try {
        DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
        System.out.println("Connecting to the database...");
        Connection connection = DriverManager.getConnection(
                "jdbc:oracle:thin:@124.18.10.22:1521:INT9", "nitin",
                "nitin");

        String filePath = "D:/ishan1/R3AP201409_GMSTYXCODG_00740_20140902024214.SND";
        InputStream inputStream = new FileInputStream(new File(filePath));
        System.out.println("inputStream :" + inputStream.toString());

        String name = "Hamilton";
        String email = "fred@abc.com";
        String str = inputStream.toString();

        String sql = "INSERT INTO  EXT_SITATEXT_ONLINE_ERROR(SERVICE_ID, USAGE_DATA, FILE_NAME_LINE_NUMBER)values (?, ?, ?)";
        PreparedStatement statement = connection
                .prepareStatement(sql);

        try (BufferedReader br = new BufferedReader(
                new FileReader(filePath))) {
            for (String line; (line = br.readLine()) != null;) {
                System.out.println(line);
            }
        }

        statement.setString(1, name);
        statement.setString(2, str);
        statement.setString(3, email);

        statement.executeUpdate();
        updateQuery = statement.executeUpdate(sql);
        if (updateQuery != 0) {
            System.out.println("table is created successfully and "
                    + updateQuery + " row is inserted.");
        }

        int row = statement.executeUpdate(filePath);
        if (row > 0) {
            System.out.println("A contact was inserted.");
        }
        statement.close();
        connection.close();
    } catch (Exception e) {
        System.out.println("The exception raised is:" + e);
    }
}}

在这段代码中，我想逐行读取驱动器中的文件并逐行插入oracle db。

Answer 1

我认为snd是一种二进制格式，如果您打算稍后播放它 - 您应该将整个snd内容存储在blob / securefile或类似的内容中

Answer 2

音频文件是二进制文件。在逐行阅读它是没有意义的。如果您确实要将音频文件存储在数据库中，可以将整个文件读入字节数组，并将其作为BINARY / BLOB数据存储在数据库中。

从byte []可以轻松创建ByteArrayInputStream（它是InputStream的子类，PreparedStatement.setBinaryStream（）和PreparedStatement.setBlob（）所期望的参数类型。

请参阅PreparedStatement.setBinaryStream（）和PreparedStatement.setBlob（）： http://docs.oracle.com/javase/7/docs/api/java/sql/PreparedStatement.html

如何逐行读取文件并将其放入oracle db

2 个答案: