java实现批量导入.csv文件到mysql数据库

package com.cqu.price_prediction.farm; import java.io.File;import java.io.FileNotFoundException;import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.SQLException;import java.util.Scanner; public class Read{ private static Connection con;  public static void main(String[] args) throws FileNotFoundException, SQLException {  long startTime = System.currentTimeMillis(); File file = new File("H:/AgriculturalProduct/data/farming.csv");  Scanner in = new Scanner(file);  getConnect(); System.out.println("数据库连接成功"); insert_data(in);  long EndTime = System.currentTimeMillis(); long time = (EndTime - startTime) / 1000;  System.out.println("导入数据共用时：" + time); }  private static void insert_data(Scanner in) throws SQLException { int count = 0; String sql = "insert into farming (province,market,type,name,standard,area,color,unit,minprice,avgprice,maxprice,entertime,time)"  + "values(?,?,?,?,?,?,?,?,?,?,?,?,?)";  con.setAutoCommit(false); PreparedStatement pstmt = con.prepareStatement(sql); in.next(); while (in.hasNext()) {  String temp1 = in.nextLine();  String[] temp = temp1.split(",");   if (temp.length < 13)  continue;   if (temp.length == 13)  {  pstmt.setString(1, temp[0]);  pstmt.setString(2, temp[1]);  pstmt.setString(3, temp[2]);  pstmt.setString(4, temp[3]);  pstmt.setString(5, temp[4]);  pstmt.setString(6, temp[5]);  pstmt.setString(7, temp[6]);  pstmt.setString(8, temp[7]);  pstmt.setString(9, temp[8]);  pstmt.setString(10, temp[9]);  pstmt.setString(11, temp[10]);  pstmt.setString(12, temp[11]);  pstmt.setString(13, temp[12]);  }   pstmt.addBatch();   count++;   if (count == 20000)  {  count = execute(pstmt, count);  } } pstmt.executeBatch(); con.commit();  }  public static int execute(PreparedStatement pstmt, int count) throws SQLException {  pstmt.executeBatch(); con.commit(); return 0;  }  private static void getConnect() { try {  Class.forName("com.mysql.jdbc.Driver");  con = DriverManager.getConnection(   "jdbc:mysql://localhost:3306/agricultural_price_prediction?useUnicode=true&characterEncoding=utf8&useServerPrepStmts=false&rewriteBatchedStatements=true",   "root", "123456"); } catch (ClassNotFoundException | SQLException e) {  // TODO Auto-generated catch block  e.printStackTrace(); } } }