create table account(
id int primary key auto_increment,
name varchar(40),
money float
)character set utf8 collate utf8_general_ci;
insert into account(name,money) values('aaa',1000);
insert into account(name,money) values('bbb',1000);
insert into account(name,money) values('ccc',1000); public class Account implements Serializable {
private Integer id;
private String name;
private Float money;
public void setId(Integer id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public void setMoney(Float money) {
this.money = money;
}
public Integer getId() {
return id;
}
public String getName() {
return name;
}
public Float getMoney() {
return money;
}
@Override
public String toString() {
return "Account{" +
"id=" + id +
", name='" + name + '\'' +
", money=" + money +
'}';
}
}public interface IAccountDao {
/**
* 查询所有
* @return
*/
List<Account> findAllAccount();
/**
* 查询一个
* @return
*/
Account findAccountById(Integer accountId);
/**
* 保存
* @param account
*/
void saveAccount(Account account);
/**
* 更新
* @param account
*/
void updateAccount(Account account);
/**
* 删除
* @param accountId
*/
void deleteAccount(Integer accountId);
}public interface IAccountService {
/**
* 查询所有
* @return
*/
List<Account> findAllAccount();
/**
* 查询一个
* @return
*/
Account findAccountById(Integer accountId);
/**
* 保存
* @param account
*/
void saveAccount(Account account);
/**
* 更新
* @param account
*/
void updateAccount(Account account);
/**
* 删除
* @param accountId
*/
void deleteAccount(Integer accountId);
}public class AccountDaoImpl implements IAccountDao {
private QueryRunner runner;
public void setRunner(QueryRunner runner) {
this.runner = runner;
}
public List<Account> findAllAccount() {
try{
return runner.query("select * from account", new BeanListHandler<Account>(Account.class));
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public Account findAccountById(Integer accountId) {
try{
return runner.query("select * from account where id = ?", new BeanHandler<Account>(Account.class),accountId);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public void saveAccount(Account account) {
try{
runner.update("insert into account(name, money) values(?,?)", account.getName(),account.getMoney());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public void updateAccount(Account account) {
try{
runner.update("update account set name = ?, money = ? where id = ?", account.getName(),account.getMoney(),account.getId());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public void deleteAccount(Integer accountId) {
try{
runner.update("delete from account where id = ?", accountId);
} catch (Exception e) {
throw new RuntimeException(e);
}public class AccountServiceImpl implements IAccountService {
private IAccountDao accountDao;
public void setAccountDao(IAccountDao accountDao) {
this.accountDao = accountDao;
}
public List<Account> findAllAccount() {
return accountDao.findAllAccount();
}
public Account findAccountById(Integer accountId) {
return accountDao.findAccountById(accountId);
}
public void saveAccount(Account account) {
accountDao.saveAccount(account);
}
public void updateAccount(Account account) {
accountDao.updateAccount(account);
}
public void deleteAccount(Integer accountId) {
accountDao.deleteAccount(accountId);
}
} public class AccountServiceTest {
@Test
public void testFindAll() {
// 1.获取容器
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("bean.xml");
// 2.得到业务层对象
IAccountService iAccountService = applicationContext.getBean("accountService",IAccountService.class);
// 3.执行方法
List<Account> accounts = iAccountService.findAllAccount();
for (Account account : accounts) {
System.out.println(account);
}
}
@Test
public void testFindOne() {
// 1.获取容器
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("bean.xml");
// 2.得到业务层对象
IAccountService iAccountService = applicationContext.getBean("accountService",IAccountService.class);
// 3.执行方法
Account account = iAccountService.findAccountById(1);
System.out.println(account);
}
@Test
public void testSave() {
Account account = new Account();
account.setName("test");
account.setMoney(12345f);
// 1.获取容器
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("bean.xml");
// 2.得到业务层对象
IAccountService iAccountService = applicationContext.getBean("accountService",IAccountService.class);
// 3.执行方法
iAccountService.saveAccount(account);
}
@Test
public void testUpdate() {
// 1.获取容器
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("bean.xml");
// 2.得到业务层对象
IAccountService iAccountService = applicationContext.getBean("accountService",IAccountService.class);
// 3.执行方法
Account account = iAccountService.findAccountById(4);
account.setMoney(23456f);
iAccountService.updateAccount(account);
}
@Test
public void testDelete() {
// 1.获取容器
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("bean.xml");
// 2.得到业务层对象
IAccountService iAccountService = applicationContext.getBean("accountService",IAccountService.class);
// 3.执行方法
iAccountService.deleteAccount(4);
}
}<?xml version="1.0" encoding="UTF-8"?>
<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.xsd">
<!--配置Service-->
<bean id="accountService" class="com.greyson.service.impl.AccountServiceImpl">
<!--注入dao-->
<property name="accountDao" ref="accountDao"></property>
</bean>
<!--配置dao-->
<bean id="accountDao" class="com.greyson.dao.impl.AccountDaoImpl">
<!--注入runner-->
<property name="runner" ref="runner"></property>
</bean>
<!--配置runner-->
<bean id="runner" class="org.apache.commons.dbutils.QueryRunner" scope="prototype">
<!--注入数据源-->
<constructor-arg name="ds" ref="dataSource"></constructor-arg>
</bean>
<!--配置数据源-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/eesy"></property>
<property name="user" value="root"></property>
<property name="password" value="HotteMYSQL"></property>
</bean>
</beans>