用java将本地文件中的数据插入mysql数据库

/**

参数说明：java -jar InsertData.jar 数据库url 表名 文件路径 是否再插入前删除
该方法存在的问题是，读入本地数据后没必要放在二维数组中，这样会大大降低插入的效率，可以分块读入，每次读几千条，然后插入数据库，并提交。或者使用多线程，还在学习之中。
*/

package com.home;

import java.io.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

import java.sql.SQLException;


import java.util.ArrayList;
import java.util.List;



public class InsertData {
	
	private static String url_unic = "?useUnicode=true&characterEncoding=utf8";
	
	//读取文本文件
	public static String[][] writeToDat(String path){
		File file = new File(path);
		List<String> list = new ArrayList<String>();
		String[][] strings = null;
		
		try {
			InputStreamReader isr = new InputStreamReader(new FileInputStream(file), "utf8"); 
			BufferedReader bw = new BufferedReader(isr);
			String line = null;
			while((line = bw.readLine()) != null){
				//System.out.println(line);
				list.add(line);
			}
			bw.close();
		} catch(IOException e){
			e.printStackTrace();
		}
		
		strings = new String[list.size()][14];
		for(int i=0;i<list.size();i++){
			String[] st = list.get(i).split("\t");
			for(int j=0;j<st.length;j++){
				strings[i][j] = st[j];
				//System.out.println(strings[i][j]);
			}
			
				
		}
		System.out.println("load data success!");
		return strings;
	}
	

	
	//连接数据库
	public static Connection getConnection(String url,String dataBase,String user,String pwd){
		Connection conn = null;
		try{
			Class.forName("com.mysql.jdbc.Driver");
			String url_total = url+"/"+dataBase+url_unic;
			//System.out.println(url_total);
			conn = DriverManager.getConnection(url_total,user,pwd);
			System.out.println("connection success!");
		} catch(Exception e){
			System.out.println("connection fail!");
			e.printStackTrace();
		}
		return conn;
	}
	
	//关闭数据库连接
	
    public static void closeCon(Connection con){
        if(con != null){
        	try{
            con.close();
        	    }catch(Exception e){
        	    	e.printStackTrace();
            	}
        }
    }
	
	//插入数据
	public static boolean insertIntoTable(String url,String dataBase,String user,String pwd,String table,String[][] str){
		Connection conn = getConnection(url,dataBase,user,pwd);
		
		try{
			String sql = "insert into " + table + " (" + "inner_account_id,account_id,custom_id,custom_cname,account_type,is_internal,"
					      + "first_login_date,last_date,account_mode,is_special_line,account_status,custom_type_id,iwind_type,has_auxiliary"
					      + ")" + " values " + "(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
			PreparedStatement pstmt = conn.prepareStatement(sql);
			//System.out.println(sql);
			
			for(int i=0;i<str.length;i++){
				pstmt.setInt(1,Integer.parseInt(str[i][0]));
				//System.out.println(str[i][0]);
				for(int j=1;j<str[i].length;j++){
					//System.out.println(str[i][j]);
					pstmt.setString(j+1,str[i][j]);
				}
				pstmt.executeUpdate();	
			}			
			System.out.println("insert data success!");
			closeCon(conn);
			return true;
			
		} catch(SQLException e){
			e.printStackTrace();
			System.out.println("insert data fail!");
			closeCon(conn);
			return false;
		}
	}
	
	//删除数据库数据
	public static void dropData(String url,String dataBase,String user,String pwd,String table){
		Connection conn = getConnection(url,dataBase,user,pwd);
		try{
			String sql = "delete from "+ table;
			//System.out.println(sql);
			PreparedStatement pstmt = conn.prepareStatement(sql);
			pstmt.executeUpdate();	
			System.out.println("delete data success!");
			closeCon(conn);
			
		} catch(SQLException e){
			e.printStackTrace();
			System.out.println("delete data fail!");
			closeCon(conn);			
		}
	}
	
	public static void main(String[] args){
		/*--------调试-----------//
		String path = "C:/Users/pchen.lyndon/Desktop/file.txt";
		String[][] strings = writeToDat(path);
		for(int i=0;i<strings.length;i++){
			for(int j=0;j<strings[i].length;j++){
				System.out.print(strings[i][j]+'\t');
			}
			System.out.println();
			
		}
		//----------end---------*/
		
		
		String url = args[0];		
		String table = args[1];
		String path = args[2];
		String deleteFlag = args[3];
		System.out.println(deleteFlag);
		String dataBase = "****";
		String user = "****";
		String pwd = "****";
		System.out.println(url);
		System.out.println(table);
		System.out.println(path);
		
		//将文件数据读入二维数组
		String[][] strings = writeToDat(path);		

		
		if(deleteFlag.equals("true") | deleteFlag.equals("True")){
			dropData(url,dataBase,user,pwd,table);
		}
		
		//创建数据库连接,并向数据库中插入数据
		insertIntoTable(url,dataBase,user,pwd,table,strings);
		
	}
}