applicationContext.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" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <!--配置数据源--> <bean id="dataSource" class= "org.springframework.jdbc.datasource.DriverManagerDataSource"> <!-- 数据库驱动 --> <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/> <!-- 连接数据库url --> <property name="url" value="jdbc:mysql://localhost/spring?useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai" /> <property name="username" value="root"/><!-- 连接数据库用户名 --> <property name="password" value="1234"/><!-- 连接数据库密码 --> </bean> <!-- 配置jdbc模板--> <bean id="JdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> <!-- 默认必须使用数据源 --> <property name="dataSource" ref="dataSource"/> </bean> <!-- 注册一个bean--> <!-- <bean name="userDao" class="com.niuzhuang.dao.impl.UserDaoImpl"/>--> <!-- <bean name="xmlAdvice" class="com.niuzhuang.demo.XmlAdice"/>--> <bean id="accountDao" class="com.niuzhuang.dao.impl.AccountDaoImpl"> <property name="jdbcTemplate" ref="JdbcTemplate"/> </bean> <!-- <!– 配置spring AOP–>--> <!-- <aop:config>--> <!--<!– 指定切入点–>--> <!-- <aop:pointcut id="pointcut" expression="execution(* com.niuzhuang.dao.impl.UserDaoImpl.*(..))"/>--> <!--<!– 指定切面–>--> <!-- <aop:aspect ref="xmlAdvice">--> <!--<!– 前置通知–>--> <!-- <aop:before method="before" pointcut-ref="pointcut"/>--> <!-- <!– 返回通知–>--> <!-- <aop:after-returning method="afteReturnning" pointcut-ref="pointcut"/>--> <!-- <!– 环绕通知–>--> <!-- <aop:around method="around" pointcut-ref="pointcut"/>--> <!-- <!– 异常通知–>--> <!-- <aop:after-throwing method="afterException" pointcut-ref="pointcut"/>--> <!-- <!– 后置通知–>--> <!-- <aop:after method="after" pointcut-ref="pointcut"/>--> <!-- </aop:aspect>--> <!-- </aop:config>--> <!--使用context命名空间,开启注解处理器--> <!-- <context:component-scan base-package="com.niuzhuang"/>--> <!-- <!–将类配置到容器当中,让容器创建实例–>--> <!-- <!–setter注入–>--> <!-- <bean id="hello" class="com.niuzhuang.HelloSpring">--> <!-- <!–给属性赋值–>--> <!-- <property name="name" value="张三"/>--> <!-- </bean>--> <!-- <!–构造方法注入–>--> <!-- <bean id="user" class="com.niuzhuang.User">--> <!-- <constructor-arg name="id" value="1"/>--> <!-- <constructor-arg name="username" value="zs"/>--> <!-- <constructor-arg name="password" value="1234"/>--> <!-- </bean>--> <!-- <!–注入dao–>--> <!-- <bean id="userDao" class="com.niuzhuang.dao.impl.UserDaoImpl"/>--> <!-- <!–注入service–>--> <!-- <bean id="userService" class="com.niuzhuang.service.impl.UserServiceImpl">--> <!-- <property name="userDao" ref="userDao"/>--> <!-- </bean>--> </beans>
Account.java
package com.niuzhuang.entity; public class Account { private int id; private String name; private double balance; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public double getBalance() { return balance; } public void setBalance(double balance) { this.balance = balance; } @Override public String toString() { return "Account{" + "id=" + id + ", name='" + name + '\'' + ", balance=" + balance + '}'; } }
UserDao.interface
package com.niuzhuang.dao; import com.niuzhuang.entity.Account; import java.util.List; //这是接口 public interface AccountDao { public int addAccount(Account account); public int update(Account account); public int deleteAccount(Account account); public Account findByIdAndName(int id,String name); public List<Account> findAll(); }
AccountDaoImpl.java
package com.niuzhuang.dao.impl; import com.niuzhuang.dao.AccountDao; import com.niuzhuang.entity.Account; import org.springframework.jdbc.core.BeanPropertyRowMapper; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.core.RowMapper; import java.util.List; public class AccountDaoImpl implements AccountDao { private JdbcTemplate jdbcTemplate; public void setJdbcTemplate(JdbcTemplate jdbcTemplate) { this.jdbcTemplate = jdbcTemplate; } public int addAccount(Account account) { String sql = "insert into account(name,balance) values(?,?)"; Object[] args = {account.getName(),account.getBalance()}; int num = jdbcTemplate.update(sql,args); return num; } public int update(Account account) { String sql = "update account set name=?,balance=? where id=?"; int num = jdbcTemplate.update(sql,account.getName(),account.getBalance(),account.getId()); return num; } public int deleteAccount(Account account) { String sql = "delete from account where id=?"; return jdbcTemplate.update(sql,account.getId()); } public Account findByIdAndName(int id, String name) { String sql = "select*from account where id=? and name=?"; RowMapper rm = new BeanPropertyRowMapper<Account>(Account.class);//用于将查询的每一条结果转为对象 Account account = (Account) jdbcTemplate.queryForObject(sql,rm,id,name); return account; } public List<Account> findAll() { String sql = "select*from account"; RowMapper rm = new BeanPropertyRowMapper<Account>(Account.class);//用于将查询的每一条结果转为对象 return jdbcTemplate.query(sql,rm); } }
TestAddAccount.java
package com.niuzhuang.test; import com.niuzhuang.dao.AccountDao; import com.niuzhuang.entity.Account; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class TestAddAccount { public static void main(String[] args) { ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); AccountDao dao = applicationContext.getBean("accountDao",AccountDao.class); Account account = new Account(); account.setBalance(94840.0); account.setName("里斯"); int num = dao.addAccount(account); System.out.println("添加了"+num+"条记录"); } }
TestFindByIdAndName.java
package com.niuzhuang.test; import com.niuzhuang.dao.AccountDao; import com.niuzhuang.entity.Account; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import java.util.List; public class TestFindByIdAndName { public static void main(String[] args) { ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); AccountDao dao = applicationContext.getBean("accountDao",AccountDao.class); // System.out.println(dao.findByIdAndName(1,"1111")); List<Account> list = dao.findAll(); if (list.size()>0){ for (Account a:list){ System.out.println(a); } }else{ System.out.println("查询不到数据"); } } }
TestUpdate.java
package com.niuzhuang.test; import com.niuzhuang.dao.AccountDao; import com.niuzhuang.entity.Account; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class TestUpdate { public static void main(String[] args) { ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); AccountDao dao = applicationContext.getBean("accountDao",AccountDao.class); Account account = new Account(); account.setBalance(11111); account.setName("1111"); account.setId(4); dao.update(account); } }
标签:account,jdbc,--,Spring,改查,Account,import,com,public From: https://www.cnblogs.com/TokaiTeio32/p/17286891.html