20200114——jdbcTemplate

课程安排

jdbcTemplate 它就是对数据库交互的，实现对表的crud操作

配置maven

<?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.itheima</groupId>
    <artifactId>day04_eesy_01jdbctemplate</artifactId>
    <version>1.0-SNAPSHOT</version>
    <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-jdbc</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

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

</project>

使用配置spring的方式，实现jdbctemplate

测试代码类

package com.itheima.jdbctemplate;

import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

/**
 * @Classname JdbcTemplateDemo1
 * @Description JdbcTemplate最基本用法
 * @Date 2020/1/14 16:25
 * @Created by mmz
 */
public class JdbcTemplateDemo2 {
    public static void main(String[] args) {
//        //准备数据源。spring的内置数据源
//        DriverManagerDataSource driverManagerDataSource  =new DriverManagerDataSource();
//        driverManagerDataSource.setDriverClassName("com.mysql.jdbc.Driver");
//        driverManagerDataSource.setUrl("jdbc:mysql://localhost:3306/eesy?useUnicode=true&characterEncoding=utf8");
//        driverManagerDataSource.setUsername("root");
//        driverManagerDataSource.setPassword("password");
//        //创建对象
//        JdbcTemplate jdbcTemplate = new JdbcTemplate();
//        jdbcTemplate.setDataSource(driverManagerDataSource);
//        //执行操作
//        jdbcTemplate.execute("insert into account(name,money) values('ddd',1000)");

        //获取容器
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("bean.xml");
        JdbcTemplate jdbcTemplate = applicationContext.getBean("jdbcTemplate",JdbcTemplate.class);
        jdbcTemplate.execute("insert into account(name,money) values('eee',222)");
    }
}

bean配置代码

<?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">

    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/eesy?useUnicode=true&amp;characterEncoding=utf8"></property>
        <property name="username" value="root"></property>
        <property name="password" value="password"></property>
    </bean>
</beans>

感觉没什么用- = 有mybatis了