CREATE TABLE `goods` (
  `goodsId` bigint(11) unsigned NOT NULL AUTO_INCREMENT COMMENT 'id',
  `goodsName` varchar(500) NOT NULL DEFAULT '' COMMENT 'name',
  `subject` varchar(200) NOT NULL DEFAULT '' COMMENT '標(biāo)題',
  `price` decimal(15,2) NOT NULL DEFAULT '0.00' COMMENT '價(jià)格',
  `stock` int(11) NOT NULL DEFAULT '0' COMMENT 'stock',
  PRIMARY KEY (`goodsId`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COMMENT='商品表';

<dependency>
	<groupId>com.baomidou</groupId>
	<artifactId>dynamic-datasource-spring-boot-starter</artifactId>
	<version>3.3.2</version>
</dependency>

server.port=8080

#設(shè)置test1為主數(shù)據(jù)源
spring.datasource.dynamic.primary=master
#test1主數(shù)據(jù)源配置
spring.datasource.dynamic.datasource.master.url=jdbc:mysql://127.0.0.1:3306/test1?characterEncoding=utf8&useSSL=false&autoReconnect=true&serverTimezone=UTC
spring.datasource.dynamic.datasource.master.username=root
spring.datasource.dynamic.datasource.master.password=123456
spring.datasource.dynamic.datasource.master.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.dynamic.datasource.master.type=com.alibaba.druid.pool.DruidDataSource
#druid連接池配置
spring.datasource.dynamic.datasource.master.druid.initial-size=5
spring.datasource.dynamic.datasource.master.druid.max-active=20
spring.datasource.dynamic.datasource.master.druid.min-idle=5
spring.datasource.dynamic.datasource.master.druid.max-wait=60000

#test2從數(shù)據(jù)源配置
spring.datasource.dynamic.datasource.slave.url=jdbc:mysql://127.0.0.1:3306/test2?characterEncoding=utf8&useSSL=false&autoReconnect=true&serverTimezone=UTC
spring.datasource.dynamic.datasource.slave.username=root
spring.datasource.dynamic.datasource.slave.password=123456
spring.datasource.dynamic.datasource.slave.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.dynamic.datasource.slave.type=com.alibaba.druid.pool.DruidDataSource
#druid連接池配置
spring.datasource.dynamic.datasource.slave.druid.initial-size=5
spring.datasource.dynamic.datasource.slave.druid.max-active=20
spring.datasource.dynamic.datasource.slave.druid.min-idle=5
spring.datasource.dynamic.datasource.slave.druid.max-wait=60000

#mybatis配置
mybatis.mapper-locations=classpath:org/example/mapper/*.xml
mybatis.configuration.cache-enabled=true
#開啟駝峰命名
mybatis.configuration.map-underscore-to-camel-case=true
#打印SQL
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

@SpringBootApplication(exclude = DruidDataSourceAutoConfigure.class)
@Slf4j
public class App {

    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
        log.info("------springboot running-----");
    }
}

@Data
@ApiModel
public class Goods implements Serializable {

    @ApiModelProperty(value = "商品id")
    private Long goodsid;

    @ApiModelProperty(value = "商品名稱")
    @NotBlank(message = "商品名稱不能為空")
    private String goodsname;

    @ApiModelProperty(value = "商品描述")
    @NotBlank(message = "商品描述不能為空")
    private String subject;

    @ApiModelProperty(value = "商品價(jià)格")
    @NotNull(message = "商品價(jià)格不能為空")
    private BigDecimal price;

    @ApiModelProperty(value = "商品庫(kù)存", example = "0")
    @NotNull(message = "商品庫(kù)存不能為空")
    private Integer stock;
}

@Service
public class GoodServiceImpl implements GoodService {

    @Autowired
    private GoodsMapper goodsMapper;

    @Override
    public Goods selectOneGoods(Long goodsid) {
        return goodsMapper.selectByPrimaryKey(goodsid);
    }

    @Override
    public int addGoods(Goods goods) {
        return goodsMapper.insertSelective(goods);
    }
}

@Controller
@RequestMapping(path = "/goods")
@Api(tags = "商品管理相關(guān)接口")
@Slf4j
public class GoodsController {

    @Autowired
    private GoodService goodService;

    @GetMapping(path = "/selectOne")
    @ResponseBody
    @ApiOperation(value = "查詢商品接口")
    @ApiImplicitParam(name = "id", value = "商品id", required = true)
    public ResultMap selectOne(@RequestParam(name = "id", defaultValue = "3") Long goodsid) {
        Goods goods = goodService.selectOneGoods(goodsid);
        log.info("查詢到的商品數(shù)據(jù)：" + goods.toString());
        if (StringUtils.isEmpty(goods)) {
            return new ResultMap().fail().message("查詢失敗，沒(méi)有您要的數(shù)據(jù)");
        }
        return new ResultMap().success().message("查詢成功").data(goods);
    }

    @PostMapping(path = "/addGoods")
    @ResponseBody
    @ApiOperation(value = "添加商品的接口")
    public ResultMap addGoods(@Valid Goods goods, @NotNull BindingResult bindingResult) {
        if (bindingResult.hasErrors()){
            String defaultMessage = Objects.requireNonNull(bindingResult.getFieldError()).getDefaultMessage();
            return new ResultMap().fail().message(defaultMessage);
        }
        int i = goodService.addGoods(goods);
        if (i > 0) {
            return new ResultMap().success().message("添加成功");
        }
        return new ResultMap().fail().message("添加失敗");
    }
}

@Service
public class GoodServiceImpl implements GoodService {

    @Autowired
    private GoodsMapper goodsMapper;

    @DS(value = "slave")// 切換數(shù)據(jù)源，并指定要訪問(wèn)的數(shù)據(jù)庫(kù)名稱
    @Override
    public Goods selectOneGoods(Long goodsid) {
        return goodsMapper.selectByPrimaryKey(goodsid);
    }

    @Override
    public int addGoods(Goods goods) {
        return goodsMapper.insertSelective(goods);
    }
}