日期:2014-05-16 浏览次数:20571 次
ConnDB cd = new ConnDB();
Connection ct = null;
PreparedStatement pst = null;
ResultSet rs = null;
ct = cd.getConn();
String insertSql = "insert into mytable (name,age) values(?,?)";
System.out.println(insertSql);
try {
ct.setAutoCommit(false); // 开始事务
pst = ct.prepareStatement(insertSql);
for (int i = 0; i < 120000; i++) {
pst.setString(1, "name" + i);
pst.setInt(2, i);
pst.addBatch();
System.out.println(i);
//分段提交
if((i%50000==0&& i!=0)||i== (120000 -1)){
pst.executeBatch();
ct.commit();
ct.setAutoCommit(false);// 开始事务
pst = ct.prepareStatement(insertSql);
System.out.println("------------>50000");
}
}
ct.commit();// 提交事务
} catch (SQLException e) {
try {
ct.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
e.printStackTrace();
} catch (RuntimeException e) {
try {
ct.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
} finally {
cd.close(ct, pst, rs);
}
} ConnDB cd = new ConnDB();
Connection ct = null;
PreparedStatement pst = null;
ResultSet rs = null;
ct = cd.getConn();
String deleteSql = "delete from mytable t where t.name=?";
System.out.println(deleteSql);
int[] intArray = new int[120000];
try {
ct.setAutoCommit(false); // 开始事务
pst = ct.prepareStatement(deleteSql);
for (int i = 0; i < 120000; i++) {
pst.setString(1, "name" + i);
pst.addBatch();
System.out.println(i);
// 分段提交
if ((i % 50000 == 0 && i != 0) || i == (120000 - 1)) {
intArray = pst.executeBatch();
ct.commit();
ct.setAutoCommit(false);// 开始事务
pst = ct.prepareStatement(deleteSql);
System.out.println("------------>50000");
}
}
ct.commit();// 提交事务
} catch (SQLException e) {
try {
ct.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
e.printStackTrace();
} catch (RuntimeException e) {
try {
ct.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
} finally {
cd.close(ct, pst, rs);
}
}ConnDB cd = new ConnDB();
Connection ct = null;
PreparedStatement pst = null;
ResultSet rs = null;
ct = cd.getConn();
String deleteSql = "update mytable t set t.age =20 where t.name=?";
System.out.println(deleteSql);
int[] intArray = new int[120000];
try {
ct.setAutoCommit(false); // 开始事务
pst = ct.prepareStatement(deleteSql);
for (int i = 0; i < 120000; i++) {
pst.setString(1, "name"+i);
pst.addBatch();
System.out.println(i);
// 分段提交
if ((i % 50000 == 0 && i != 0) || i == (120000 - 1)) {
intArray = pst.executeBatch();
ct.commit();
ct.setAutoCommit(false);// 开始事务
pst = ct.prepareStatement(deleteSql);
System.out.println("------------>50000");
}
}
ct.commit();// 提交事务
} catch (SQLException e) {
try {
ct.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
e.printStackTrace();
} catch (RuntimeException e) {
try {
ct.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
} finally {
cd.close(ct, pst, rs);
}
}