Java EE企业级应用开发教程（Spring+Spring MVC+MyBatis）SSM源码.zip

package com.awen.jdbc; import java.util.List; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import org.springframework.jdbc.core.JdbcTemplate; public class JdbcTemplateTest { /** * 使用execute()方法建表 */ // public static void main(String[] args) { // // 加载配置文件 // ApplicationContext applicationContext = // new ClassPathXmlApplicationContext("applicationContext.xml"); // // 获取JdbcTemplate实例 // JdbcTemplate jdTemplate = // (JdbcTemplate) applicationContext.getBean("jdbcTemplate"); // // 使用execute()方法执行SQL语句，创建用户账户管理表account // jdTemplate.execute("create table account(" + // "id int primary key auto_increment," + // "username varchar(50)," + // "balance double)"); // System.out.println("账户表account创建成功！"); // } @Test public void mainTest() { // 加载配置文件 ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); // 获取JdbcTemplate实例 JdbcTemplate jdTemplate = (JdbcTemplate) applicationContext.getBean("jdbcTemplate"); // 使用execute()方法执行SQL语句，创建用户账户管理表account jdTemplate.execute("create table account(" + "id int primary key auto_increment," + "username varchar(50)," + "balance double)"); System.out.println("账户表account创建成功！"); } @Test public void addAccountTest() { // 加载配置文件 ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); // 获取AccountDao实例 AccountDao accountDao = (AccountDao) applicationContext.getBean("accountDao"); // 创建Account对象，并向Account对象中添加数据 Account account = new Account(); account.setUsername("柳狗柱"); account.setBalance(20.00); // 执行addAccount()方法，并获取返回结果 int num = accountDao.addAccount(account); if (num > 0) { System.out.println("成功插入了" + num + "条数据！"); } else { System.out.println("插入操作执行失败！"); } } @Test public void updateAccountTest() { // 加载配置文件 ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); // 获取AccountDao实例 AccountDao accountDao = (AccountDao) applicationContext.getBean("accountDao"); // 创建Account对象，并向Account对象中添加数据 Account account = new Account(); account.setId(1); account.setUsername("tom"); account.setBalance(2000.00); // 执行updateAccount()方法，并获取返回结果 int num = accountDao.updateAccount(account); if (num > 0) { System.out.println("成功修改了" + num + "条数据！"); } else { System.out.println("修改操作执行失败！"); } } // @Test public void deleteAccountTest() { // 加载配置文件 ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); // 获取AccountDao实例 AccountDao accountDao = (AccountDao) applicationContext.getBean("accountDao"); // 执行deleteAccount()方法，并获取返回结果 int num = accountDao.deleteAccount(1); if (num > 0) { System.out.println("成功删除了" + num + "条数据！"); } else { System.out.println("删除操作执行失败！"); } } // @Test public void findAccountByIdTest() { // 加载配置文件 ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); // 获取AccountDao实例 AccountDao accountDao = (AccountDao) applicationContext.getBean("accountDao"); // 执行findAccountById()方法 Account account = accountDao.findAccountById(2); System.out.println(account); } // @Test public void findAllAccountTest() { // 加载配置文件 ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); // 获取AccountDao实例 AccountDao accountDao = (AccountDao) applicationContext.getBean("accountDao"); // 执行findAllAccount()方法,获取Account对象的集合 List<Account> account = accountDao.findAllAccount(); // 循环输出集合中的对象 for (Account act : account) { System.out.println(act); } } }