In Spring JDBC framework, SimpleJdbcTemplate is provided as java5-friendly supplement to JdbcTemplate.

batchUpdate examples

Here’s a batchUpdate() example in SimpleJdbcTemplate class.

//insert batch example
public void insertBatch(final List<Customer> customers){
	String sql = "INSERT INTO CUSTOMER " +
		"(CUST_ID, NAME, AGE) VALUES (?, ?, ?)";
 
	List<Object[]> parameters = new ArrayList<Object[]>();
 
	for (Customer cust : customers) {
        parameters.add(new Object[] {cust.getCustId(), 
            cust.getName(), cust.getAge()}
        );
    }
    getSimpleJdbcTemplate().batchUpdate(sql, parameters);        
}

Alternatively, you can execute the SQL directly.

//insert batch example with SQL
public void insertBatchSQL(final String sql){
 
	getJdbcTemplate().batchUpdate(new String[]{sql});
 
}

Spring’s bean configuration file

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
 
  <bean id="customerSimpleDAO" 
        class="com.mkyong.customer.dao.impl.SimpleJdbcCustomerDAO">
 
	<property name="dataSource" ref="dataSource" />
  </bean>
 
  <bean id="dataSource" 
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
 
	<property name="driverClassName" value="com.mysql.jdbc.Driver" />
	<property name="url" value="jdbc:mysql://localhost:3306/mkyongjava" />
	<property name="username" value="root" />
	<property name="password" value="password" />
  </bean>
 
</beans>

Run it

package com.mkyong.common;
 
import java.util.ArrayList;
import java.util.List;
 
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.mkyong.customer.dao.CustomerDAO;
import com.mkyong.customer.model.Customer;
 
public class App 
{
    public static void main( String[] args )
    {
    	ApplicationContext context = 
    		new ClassPathXmlApplicationContext("Spring-Customer.xml");
 
        CustomerDAO customerSimpleDAO = 
                      (CustomerDAO) context.getBean("customerSimpleDAO");
 
        Customer customer1 = new Customer(1, "mkyong1",21);
        Customer customer3 = new Customer(2, "mkyong2",22);
        Customer customer2 = new Customer(3, "mkyong3",23);
 
        List<Customer>customers = new ArrayList<Customer>();
        customers.add(customer1);
        customers.add(customer2);
        customers.add(customer3);
 
        customerSimpleDAO.insertBatch(customers);
 
        String sql = "UPDATE CUSTOMER SET NAME ='BATCHUPDATE'";
        customerSimpleDAO.insertBatchSQL(sql);
 
    }
}

In this example, you are inserted three customers’ records and update all customer’s name in batch.

You can download this full SimpleJdbcTemplate batchUpdate() example – Spring-JDBC-Example.zip. If you are having trouble executing batch processes on your business servers, try looking into managed servers.

This article was posted in Spring category.