这篇博文是在参加CCF时导入.csv文件时自己总结的，虽然NavicatForMysql可以导入.csv文件，可是当我导入的时候不知道是文件太大还是什么原因，总是会出现失败。然后就用java写了一个批量导入数据的类去导入该.csv文件，这里也没有考虑代码的结构，只是为了快速的完成这个工作，做一个总结。

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(); } } }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。