spring 系列4 基于xml的CRUD

使用spring的IoC实现对象的管理
是以哦那个DBAssit作为持久层解决方案
使用c3o0数据源

1、编写实体类

package com.mantishell.domain;

import java.io.Serializable;

public class Account implements Serializable {
    private Integer id;
    private String name;
    private Float money;

    @Override
    public String toString() {
        return "Account{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", money=" + money +
                '}';
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Float getMoney() {
        return money;
    }

    public void setMoney(Float money) {
        this.money = money;
    }
}

2、编写持久层

package com.mantishell.dao;

import com.mantishell.domain.Account;

import java.util.List;

/**
 * 持久层接口
 */
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);
}


package com.mantishell.dao.impl;

import com.mantishell.dao.IAccountDao;
import com.mantishell.domain.Account;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository("accountDao")
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 ex){
            throw new RuntimeException(ex);
        }
    }

    public Account findAccountById(Integer accountId) {
        try{
            return runner.query("select * from account where id = ? ",new BeanHandler<Account>(Account.class),accountId);
        }catch(Exception ex){
            throw new RuntimeException(ex);
        }
    }

    public void saveAccount(Account account) {
        try{
            runner.update("insert into account(name, money) values(?,?)", account.getName(), account.getMoney());
        }catch(Exception ex){
            throw new RuntimeException(ex);
        }
    }

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

    public void deleteAccount(Integer accountId) {
        try{
            runner.update("delete from account where id=?",accountId);
        }catch (Exception ex){
            throw new RuntimeException(ex);
        }
    }
}

3、编写业务层

package com.mantishell.service;

import com.mantishell.domain.Account;

import java.util.List;

/**
 * 业务层接口
 */
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);
}


package com.mantishell.service.impl;

import com.mantishell.dao.IAccountDao;
import com.mantishell.domain.Account;
import com.mantishell.service.IAccountService;

import java.util.List;

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);
    }
}

4、配置对象，让spring来管理

<?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.mantishell.service.impl.AccountServiceImpl">
        <!--注入dao-->
        <property name="accountDao" ref="accountDao"/>
    </bean>

    <!--配置dao对象-->
    <bean id="accountDao" class="com.mantishell.dao.impl.AccountDaoImpl">
        <!--注入QueryRunner-->
        <property name="runner" ref="runner"/>
    </bean>

    <!--配置QueryRunner对象-->
    <bean id="runner" class="org.apache.commons.dbutils.QueryRunner" scope="prototype">
        <!--注入数据源-->
        <constructor-arg name="ds" ref="dataSource"/>
    </bean>

    <!--配置数据源-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!--连接数据库的必备信息-->
        <property name="driverClass" value="com.mysql.jdbc.Driver"/>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/db2"/>
        <property name="user" value="root"/>
        <property name="password" value="123456"/>
    </bean>
</beans>

5、测试

package com.mantishell.test;

import com.mantishell.domain.Account;
import com.mantishell.service.IAccountService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:bean.xml")
public class AccountServiceTest {

    @Autowired
    private IAccountService as;

    @Test
    public void testFindAll() {
        //3.执行方法
        List<Account> accounts = as.findAllAccount();
        for(Account account : accounts){
            System.out.println(account);
        }
    }

    @Test
    public void testFindOne() {
        //3.执行方法
        Account account = as.findAccountById(1);
        System.out.println(account);
    }

    @Test
    public void testSave() {
        Account account = new Account();
        account.setName("test");
        account.setMoney(12345f);
        //3.执行方法
        as.saveAccount(account);

    }

    @Test
    public void testUpdate() {
        //3.执行方法
        Account account = as.findAccountById(4);
        account.setMoney(23456f);
        as.updateAccount(account);
    }

    @Test
    public void testDelete() {
        //3.执行方法
        as.deleteAccount(4);
    }
}

6、POM

    <packaging>jar</packaging>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>commons-dbutils</groupId>
            <artifactId>commons-dbutils</artifactId>
            <version>1.4</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>

        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
    </dependencies>