使用JDBC在MySQL数据库中如何快速批量插入数据

void addBatch() throws SQLException

int[] executeBatch() throws SQLException

package cyl.demo.ipsearcher; 
 
import 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 = ""; 
  } 
 
  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 { 
    Class.forName(".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.mit(); // 提交 
    System.out.println("All down : " + count); 
    conn.close(); 
  } 
 
}