使用JDBC在MySQL数据库中快速批量插入数据。

mport java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class DbStoreHelper {

	private String insert_sql;
	private String charset;
	private boolean debug;

	private String connectStr;
	private String username;
	private String password;

	public DbStoreHelper() {
		connectStr = "jdbc:mysql://localhost:3306/db_ip";
		// connectStr +=
		// "?useServerPrepStmts=false&rewriteBatchedStatements=true";
		insert_sql = "INSERT INTO tb_ipinfos (iplong1,iplong2,ipstr1,ipstr2,ipdesc) VALUES (?,?,?,?,?)";
		charset = "gbk";
		debug = true;
		username = "root";
		password = "root";
	}

	public void storeToDb(String srcFile) throws IOException {
		BufferedReader bfr = new BufferedReader(new InputStreamReader(new FileInputStream(srcFile), charset));
		try {
			doStore(bfr);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			bfr.close();
		}
	}

	private void doStore(BufferedReader bfr) throws ClassNotFoundException, SQLException, IOException {
		//创建MySQL驱动实例
		Class.forName("com.mysql.jdbc.Driver");
		Connection conn = DriverManager.getConnection(connectStr, username, password);
		conn.setAutoCommit(false);// 设置手动提交
		int count = 0;
		PreparedStatement psts = conn.prepareStatement(insert_sql);
		String line = null;
		while (null != (line = bfr.readLine())) {
			String[] infos = line.split(";");
			if (infos.length < 5)
				continue;
			if (debug) {
				System.out.println(line);
			}
			psts.setLong(1, Long.valueOf(infos[0]));
			psts.setLong(2, Long.valueOf(infos[1]));
			psts.setString(3, infos[2]);
			psts.setString(4, infos[3]);
			psts.setString(5, infos[4]);
			psts.addBatch(); // 加入批量处理
			count++;
		}
		psts.executeBatch(); // 执行批量处理
		conn.commit(); // 提交
		System.out.println("All down : " + count);
		conn.close();
	}

}