基于XML的IOC案例
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2024-01-03 18:45:34
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创建一张数据表account
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);
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.dym</groupId>
<artifactId>day02_eesy_02account_xmlioc</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
<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>
</project>
Account.java
package com.itheima.domain;
import java.io.Serializable;
/**
* 账户的实体类
*/
public class Account implements Serializable {
private Integer id;
private String name;
private Float 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;
}
@Override
public String toString() {
return "Account{" +
"id=" + id +
", name='" + name + '\'' +
", money=" + money +
'}';
}
}
IAccountDao.java
package com.itheima.dao;
import com.itheima.domain.Account;
import java.util.List;
/**
* 账户的持久层接口
*/
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 acccountId
*/
void deleteAccount(Integer acccountId);
}
AccountDaoImpl.java
package com.itheima.dao.impl;
import com.itheima.dao.IAccountDao;
import com.itheima.domain.Account;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import java.util.List;
/**
* 账户的持久层实现类
*/
public class AccountDaoImpl implements IAccountDao {
private QueryRunner runner;
public void setRunner(QueryRunner runner) {
this.runner = runner;
}
@Override
public List<Account> findAllAccount() {
try{
return runner.query("select * from account",new BeanListHandler<Account>(Account.class));
}catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
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);
}
}
@Override
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);
}
}
@Override
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);
}
}
@Override
public void deleteAccount(Integer accountId) {
try{
runner.update("delete from account where id=?",accountId);
}catch (Exception e) {
throw new RuntimeException(e);
}
}
}
IAccountService.java
package com.itheima.service;
import com.itheima.domain.Account;
import java.util.List;
/**
* 账户的业务层接口
*/
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 acccountId
*/
void deleteAccount(Integer acccountId);
}
AccountServiceImpl.java
package com.itheima.service.impl;
import com.itheima.dao.IAccountDao;
import com.itheima.domain.Account;
import com.itheima.service.IAccountService;
import java.util.List;
/**
* 账户的业务层实现类
*/
public class AccountServiceImpl implements IAccountService{
private IAccountDao accountDao;
public void setAccountDao(IAccountDao accountDao) {
this.accountDao = accountDao;
}
@Override
public List<Account> findAllAccount() {
return accountDao.findAllAccount();
}
@Override
public Account findAccountById(Integer accountId) {
return accountDao.findAccountById(accountId);
}
@Override
public void saveAccount(Account account) {
accountDao.saveAccount(account);
}
@Override
public void updateAccount(Account account) {
accountDao.updateAccount(account);
}
@Override
public void deleteAccount(Integer acccountId) {
accountDao.deleteAccount(acccountId);
}
}
bean.xml
<?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.itheima.service.impl.AccountServiceImpl">
<!-- 注入dao -->
<property name="accountDao" ref="accountDao"></property>
</bean>
<!--配置Dao对象-->
<bean id="accountDao" class="com.itheima.dao.impl.AccountDaoImpl">
<!-- 注入QueryRunner -->
<property name="runner" ref="runner"></property>
</bean>
<!--配置QueryRunner-->
<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">
<!--连接数据库的必备信息-->
<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="root"></property>
</bean>
</beans>
AccountServiceTest.java
package com.itheima.test;
import com.itheima.domain.Account;
import com.itheima.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;
/**
* 使用Junit单元测试
*/
@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);
}
}