準備工作

• jdk 1.8
• maven 3.0
• idea
• mysql

springcloud b2b2c電子商務社交平臺源碼請加企鵝求求：一零三八七七四六二六。初始化mysql:

-- create table `account` DROP TABLE `account` IF EXISTS CREATE 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');

創建工程

引入依賴：

在pom文件引入spring-boot-starter-jdbc的依賴：

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId></dependency>

引入mysql連接類和連接池：

<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>

開啟web:

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency>

配置相關文件

在application.properties文件配置mysql的驅動類，數據庫地址，數據庫賬號、密碼信息。

spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/test spring.datasource.username=root spring.datasource.password=123456

通過引入這些依賴和配置一些基本信息，springboot就可以訪問數據庫類。

具體編碼

實體類

public class Account {private int id ;private String name ;private double money;....省略了getter. setter}

dao層

public interface IAccountDAO {int add(Account account);int update(Account account);int delete(int id);Account findAccountById(int id);List<Account> findAccountList(); }

具體的實現類：

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 2017/4/20.*/ @Repository public 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大型企業分布式微服務云構建的B2B2C電子商務平臺源碼請加企鵝求求：一零三八七七四六二六

轉載于:https://www.cnblogs.com/sunnysunny/p/10904589.html

超強干貨來襲 云風專訪：近40年碼齡，通宵達旦的技術人生

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