将CSV导入Java中的SQLite
我开始学习Java,需要一些帮助。我需要将CSV文件导入SQLite数据库。我有这个CSV阅读器,但我不知道如何将这些数据复制到SQLite数据库中将CSV导入Java中的SQLite,java,sql,sqlite,csv,Java,Sql,Sqlite,Csv,我开始学习Java,需要一些帮助。我需要将CSV文件导入SQLite数据库。我有这个CSV阅读器,但我不知道如何将这些数据复制到SQLite数据库中 import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; public class csv { public static void main
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class csv {
public static void main(String[] args) {
String csvFile = "/home/user/user.csv";
BufferedReader br = null;
String line = "";
String cvsSplitBy = ",";
try {
br = new BufferedReader(new FileReader(csvFile));
while ((line = br.readLine()) != null) {
String[] table = line.split(cvsSplitBy);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
如果循环保持这种状态,则必须遍历数组中的每一行,选择值并将其写入数据库。要将数据写入sqlite数据库,应该使用google。您将找到大量关于如何做到这一点的示例您可以使用JDBC和准备好的语句(查看此文档)
String dbName = "insert your db name here";
Connection conn = null;
try {
// use your dbname instead
conn = DriverManager.getConnection("jdbc:sqlite:dbname");
// use your tablename instead; set as much question marks as many fields you have
PreparedStatement stmt =
conn.prepareStatement("insert into tablename (column1, column2, column3) values (?, ?, ?)");
br = ...;
while (line = ...) {
String[] table = ...;
// set values to replace question marks in prepared statement
stmt.setInt(1, table[0]);
stmt.setString(2, table[1]);
stmt.setString(3, table[2]);
// so, know your statement is like insert into ... values (table[0], table[1], table[2])
// and maybe add other fields...
stmt.executeUpdate(); // insert data into table
}
} catch (...) { ...
} finally { ...close conn and br... }
:如何打开到SQLite db的连接并插入记录。好的,但我不知道如何将这两件事结合起来。我可以在这个循环中选择值并将它们写入我的数据库吗?
for(String str:table){//getSession().createQuery(“插入到表中”\u NAME values(“+str+”)))。executeUpdate()}
类似的操作就可以了