SQL代碼
DROP TABLE IF EXISTS tuser;
CREATE TABLE tuser (
id bigint(20) NOT NULL AUTO_INCREMENT,
name varchar(12) DEFAULT NULL,
remark varchar(24) DEFAULT NULL,
createtime datetime DEFAULT NULL,
updatetime datetime DEFAULT NULL,
PRIMARY KEY (id)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
C、D組測試代碼：
package testbatch;
import java.io.IOException;
import java.sql.*;
/**
* JDBC批量Insert優化（下）
*
* @author leizhimin 2009-7-29 10:03:10
*/
public class TestBatch {
public static DbConnectionBroker myBroker = null;
static {
try {
myBroker = new DbConnectionBroker("com.mysql.jdbc.Driver",
"jdbc:mysql://192.168.104.163:3306/testdb",
"vcom", "vcom", 2, 4,
"c:\\testdb.log", 0.01);
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 初始化測試環境
*
* @throws SQLException 異常時抛出
*/
public static void init() throws SQLException {
Connection conn = myBroker.getConnection();
conn.setAutoCommit(false);
Statement stmt = conn.createStatement();
stmt.addBatch("DROP TABLE IF EXISTS tuser");
stmt.addBatch("CREATE TABLE tuser (\n" +
" id bigint(20) NOT NULL AUTO_INCREMENT,\n" +
" name varchar(12) DEFAULT NULL,\n" +
" remark varchar(24) DEFAULT NULL,\n" +
" createtime datetime DEFAULT NULL,\n" +
" updatetime datetime DEFAULT NULL,\n" +
" PRIMARY KEY (id)\n" +
") ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8");
stmt.executeBatch();
conn.commit();
myBroker.freeConnection(conn);
* 100000條靜态SQL插入
* @throws Exception 異常時抛出
public static void testInsert() throws Exception {
init(); //初始化環境
Long start = System.currentTimeMillis();
for (int i = 0; i < 100000; i++) {
String sql = "\n" +
"insert into testdb.tuser \n" +
"\t(name, \n" +
"\tremark, \n" +
"\tcreatetime, \n" +
"\tupdatetime\n" +
"\t)\n" +
"\tvalues\n" +
"\t('" + RandomToolkit.generateString(12) + "', \n" +
"\t'" + RandomToolkit.generateString(24) + "', \n" +
"\tnow(), \n" +
"\tnow()\n" +
")";
Connection conn = myBroker.getConnection();
conn.setAutoCommit(false);
Statement stmt = conn.createStatement();
stmt.execute(sql);
conn.commit();
myBroker.freeConnection(conn);
Long end = System.currentTimeMillis();
System.out.println("單條執行100000條Insert操作，共耗時：" + (end - start) / 1000f + "秒！");
* 批處理執行靜态SQL測試
* @param m 批次
* @param n 每批數量
public static void testInsertBatch(int m, int n) throws Exception {
init(); //初始化環境
for (int i = 0; i < m; i++) {
//從池中擷取連接配接
for (int k = 0; k < n; k++) {
String sql = "\n" +
"insert into testdb.tuser \n" +
"\t(name, \n" +
"\tremark, \n" +
"\tcreatetime, \n" +
"\tupdatetime\n" +
"\t)\n" +
"\tvalues\n" +
"\t('" + RandomToolkit.generateString(12) + "', \n" +
"\t'" + RandomToolkit.generateString(24) + "', \n" +
"\tnow(), \n" +
"\tnow()\n" +
")";
//加入批處理
stmt.addBatch(sql);
}
stmt.executeBatch(); //執行批處理
// stmt.clearBatch(); //清理批處理
stmt.close();
myBroker.freeConnection(conn); //連接配接歸池
System.out.println("批量執行" + m + "*" + n + "=" + m * n + "條Insert操作，共耗時：" + (end - start) / 1000f + "秒！");
* 100000條預定義SQL插入
public static void testInsert2() throws Exception { //單條執行100000條Insert操作，共耗時：40.422秒！
String sql = "" +
"insert into testdb.tuser\n" +
" (name, remark, createtime, updatetime)\n" +
"values\n" +
" (?, ?, ?, ?)";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setString(1, RandomToolkit.generateString(12));
pstmt.setString(2, RandomToolkit.generateString(24));
pstmt.setDate(3, new Date(System.currentTimeMillis()));
pstmt.setDate(4, new Date(System.currentTimeMillis()));
pstmt.executeUpdate();
pstmt.close();
* 批處理執行預處理SQL測試
public static void testInsertBatch2(int m, int n) throws Exception {
pstmt.setString(1, RandomToolkit.generateString(12));
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