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  • Spring SimpleJdbcTemplate batchUpdate() example

    In this tutorial, we show you how to use batchUpdate() in SimpleJdbcTemplate class.

    See 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.

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  • 原文地址:https://www.cnblogs.com/ghgyj/p/4752466.html
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