Spring實例--註解實現(註解XML配置結合)

通過註解實現的實例和通過XML配置實現的實例是同一個實例，只是修改了一部分內容。
通過註解形式配置持久層實現類

@Repository(value = "accountDao")
public class AccountDaoImpl implements AccountDao {

    //提供對sql語句操作的API
    @Autowired
    private QueryRunner queryRunner;

    public List<Account> findAllAccount() {
        try {
            return queryRunner.query("select *from account",new BeanListHandler<Account>(Account.class));
        } catch (SQLException e) {
           throw new RuntimeException(e);
        }
    }

    public Account findAccountById(int accountId) {
        try {
            return queryRunner.query("select *from account where id = ?", new BeanHandler<Account>(Account.class), accountId);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }

    public void saveAccount(Account account ) {
        try {
            queryRunner.update("insert into account(name,money) value(?,?)",account.getName(),account.getMoney());
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }

    public void updateAccount(Account account) {
        try {
            queryRunner.update("update account set name=?,money=? where id=?",account.getName(),account.getMoney(),account.getId());
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }

    public void deleteAccount(int accountId) {
        try {
            queryRunner.update("delete from account where id=?",accountId);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }
}

通過註解實現業務層實現類

@Service(value = "accountService")
public class AccountServiceImpl implements AccountService {

    @Resource(name = "accountDao")
    private AccountDao accountDao;

    public List<Account> findAllAccount() {
        return accountDao.findAllAccount();
    }

    public Account findAccountById(int accountId) {
        return accountDao.findAccountById(accountId);
    }

    public void saveAccount(Account account) {
        accountDao.saveAccount(account);
    }

    public void updateAccount(Account account) {
        accountDao.updateAccount(account);
    }

    public void deleteAccount(int accountId) {
        accountDao.deleteAccount(accountId);
    }

}

通過註解形式編寫XML配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd">

    <!--掃描包-->
    <context:component-scan base-package="com.liang"></context:component-scan>

    <bean id="queryRunner" class="org.apache.commons.dbutils.QueryRunner" scope="prototype">
        <constructor-arg name="ds" ref="dataSource"></constructor-arg>
    </bean>
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.cj.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/mySpring?serverTimezone=UTC"></property>
        <property name="user" value="root"></property>
        <property name="password" value="liang"></property>
    </bean>
</beans>

以上爲修改部分，修改後也是用XML配置實現的測試代碼進行測試。