准备工作
jdk 1.8maven 3.0ideamysqlspringcloud b2b2c电子商务社交平台源码请加企鹅求求：一零三八七七四六二六。初始化mysql:
-- create table `account`DROP TABLE `account` IF EXISTSCREATE TABLE `account` (`id` int(11) NOT NULL AUTO_INCREMENT,`name` varchar(20) NOT NULL,`money` double DEFAULT NULL,PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;INSERT INTO `account` VALUES ('1', 'aaa', '1000');INSERT INTO `account` VALUES ('2', 'bbb', '1000');INSERT INTO `account` VALUES ('3', 'ccc', '1000');
创建工程
引入依赖：
在pom文件引入spring-boot-starter-jdbc的依赖：
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId></dependency>
引入mysql连接类和连接池：
<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.29</version></dependency>
开启web:
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency>
配置相关文件
在application.properties文件配置mysql的驱动类，数据库地址，数据库账号、密码信息。
spring.datasource.driver-class-name=com.mysql.jdbc.Driverspring.datasource.url=jdbc:mysql://localhost:3306/testspring.datasource.username=rootspring.datasource.password=123456
通过引入这些依赖和配置一些基本信息，springboot就可以访问数据库类。
具体编码
实体类
public class Account {private int id ;private String name ;private double money;....省略了getter. setter}
dao层
public interface IAccountDAO {int add(Account account);int update(Account account);int delete(int id);Account findAccountById(int id);List<Account> findAccountList();}
具体的实现类：
package com.forezp.dao.impl;import com.forezp.dao.IAccountDAO;import com.forezp.entity.Account;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.jdbc.core.BeanPropertyRowMapper;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.stereotype.Repository;import java.util.List;/*** Created by fangzhipeng on /4/20.*/@Repositorypublic class AccountDaoImpl implements IAccountDAO {@Autowiredprivate JdbcTemplate jdbcTemplate;@Overridepublic int add(Account account) {return jdbcTemplate.update("insert into account(name, money) values(?, ?)",account.getName(),account.getMoney());}@Overridepublic int update(Account account) {return jdbcTemplate.update("UPDATE account SET NAME=? ,money=? WHERE id=?",account.getName(),account.getMoney(),account.getId());}@Overridepublic int delete(int id) {return jdbcTemplate.update("DELETE from TABLE account where id=?",id);}@Overridepublic Account findAccountById(int id) {List<Account> list = jdbcTemplate.query("select * from account where id = ?", new Object[]{id}, new BeanPropertyRowMapper(Account.class));if(list!=null && list.size()>0){Account account = list.get(0);return account;}else{return null;}}@Overridepublic List<Account> findAccountList() {List<Account> list = jdbcTemplate.query("select * from account", new Object[]{}, new BeanPropertyRowMapper(Account.class));if(list!=null && list.size()>0){return list;}else{return null;}}}
Spring Cloud大型企业分布式微服务云构建的B2B2C电子商务平台源码请加企鹅求求：一零三八七七四六二六
