前言

博客：http://blog.healerjean.com

1、開始Demo

1.1、`hlj-03-read_write-vertical_shard.sql`

drop database if exists ds_0;
create database ds_0 character set 'utf8' collate 'utf8_general_ci';
use ds_0;

drop table if exists user;
create table `user`
(
  `id`        bigint(20) unsigned not null,
  city        varchar(20)         not null default '',
  name        varchar(20)         not null default '',
  status      int(10)             not null default '0' comment '狀態',
  create_time datetime            not null default current_timestamp comment '創建時間',
  update_time datetime            not null default current_timestamp on update current_timestamp comment '修改時間',
  primary key (`id`)
) engine = innodb
  default charset = utf8;


drop database if exists ds0slave;
create database ds0slave character set 'utf8' collate 'utf8_general_ci';
use ds0slave;

drop table if exists user;
create table `user`
(
  `id`        bigint(20) unsigned not null,
  city        varchar(20)         not null default '',
  name        varchar(20)         not null default '',
  status      int(10)             not null default '0' comment '狀態',
  create_time datetime            not null default current_timestamp comment '創建時間',
  update_time datetime            not null default current_timestamp on update current_timestamp comment '修改時間',
  primary key (`id`)
) engine = innodb
  default charset = utf8;



drop database if exists ds_1;
create database `ds_1` character set 'utf8' collate 'utf8_general_ci';
use ds_1;

drop table if exists company;
create table `company`
(
  `id`                 bigint(20) unsigned not null comment '主鍵',
  name                 varchar(20)         not null default '' comment '企業名稱',
  company_name_english varchar(128)        not null default '' comment '企業英文名稱',
  status               int(10)             not null default '0' comment '狀態',
  create_time          datetime            not null default current_timestamp comment '創建時間',
  update_time          datetime            not null default current_timestamp on update current_timestamp comment '修改時間',

  primary key (`id`)
) engine = innodb
  default charset = utf8;


drop database if exists ds1slave;
create database `ds1slave` character set 'utf8' collate 'utf8_general_ci';
use ds1slave;

drop table if exists company;
create table `company`
(
  `id`                 bigint(20) unsigned not null comment '主鍵',
  name                 varchar(20)         not null default '' comment '企業名稱',
  company_name_english varchar(128)        not null default '' comment '企業英文名稱',
  status               int(10)             not null default '0' comment '狀態',
  create_time          datetime            not null default current_timestamp comment '創建時間',
  update_time          datetime            not null default current_timestamp on update current_timestamp comment '修改時間',

  primary key (`id`)
) engine = innodb
  default charset = utf8;

1.1.1、數據庫圖文

1.2、依賴


<!--shardingsphere-->
<dependency>
    <groupId>org.apache.shardingsphere</groupId>
    <artifactId>sharding-jdbc-spring-boot-starter</artifactId>
    <version>4.0.0-RC1</version>
</dependency>

1.3、配置文件：`application.properties`

server.port=8888


# 配置 mybatis的一些配置，也可以在 application.properties 中配置，如果配置了就不需要了mybatis.xml
#mybatis-plus.config-location=classpath:mybatis.xml
#Maven 多模塊項目的掃描路徑需以 classpath*: 開頭 （即加載多個 jar 包下的 XML 文件）
mybatis-plus.mapper-locations=classpath*:mapper/*.xml
mybatis-plus.type-aliases-package=com.healerjean.proj.pojo
##主鍵類型  0:"數據庫ID自增，非常大", 1:"用戶輸入ID（如果用戶不輸入，則默認是0）",2:"全局唯一ID (數字類型唯一ID)", 3:"全局唯一ID UUID";
mybatis-plus.id-type: 0
#字段策略 0:"忽略判斷",1:"非 NULL 判斷"),2:"非空判斷"
mybatis-plus.field-strategy: 2
#數據庫大寫下劃線轉換
mybatis-plus.capital-mode: true
mybatis-plus.refresh-mapper: true


# #當遇到同樣名字的時候，是否允許覆蓋註冊
spring.main.allow-bean-definition-overriding=true
# 顯示SQL
spring.shardingsphere.props.sql.show=true

#  垂直拆分（不同的表在不同的庫中）+ 讀寫分離案例
# 數據源
spring.shardingsphere.datasource.names=ds0,ds0slave,ds1,ds1slave

spring.shardingsphere.datasource.ds0.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds0.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds0.url=jdbc:mysql://localhost:3306/ds_0?serverTimezone=CTT&useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&nullCatalogMeansCurrent=true
spring.shardingsphere.datasource.ds0.username=root
spring.shardingsphere.datasource.ds0.password=123456

spring.shardingsphere.datasource.ds0slave.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds0slave.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds0slave.url=jdbc:mysql://localhost:3306/ds0slave?serverTimezone=CTT&useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&nullCatalogMeansCurrent=true
spring.shardingsphere.datasource.ds0slave.username=root
spring.shardingsphere.datasource.ds0slave.password=123456

spring.shardingsphere.datasource.ds1.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds1.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds1.url=jdbc:mysql://localhost:3306/ds_1?serverTimezone=CTT&useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&nullCatalogMeansCurrent=true
spring.shardingsphere.datasource.ds1.username=root
spring.shardingsphere.datasource.ds1.password=123456

spring.shardingsphere.datasource.ds1slave.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds1slave.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds1slave.url=jdbc:mysql://localhost:3306/ds1slave?serverTimezone=CTT&useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&nullCatalogMeansCurrent=true
spring.shardingsphere.datasource.ds1slave.username=root
spring.shardingsphere.datasource.ds1slave.password=123456


# 綁定company表所在節點
spring.shardingsphere.sharding.tables.company.actual-data-nodes=ds1.company
# 綁定user表所在節點
spring.shardingsphere.sharding.tables.user.actual-data-nodes=ds0.user

# 讀寫分離
spring.shardingsphere.sharding.master-slave-rules.ds0.master-data-source-name=ds0
spring.shardingsphere.sharding.master-slave-rules.ds0.slave-data-source-names=ds0slave

spring.shardingsphere.sharding.master-slave-rules.ds1.master-data-source-name=ds1
spring.shardingsphere.sharding.master-slave-rules.ds1.slave-data-source-names=ds1slave

1.4、具體測試方法和類

1.4.1、實體類

1.4.1.1、`User.java`

@Data
@Accessors(chain = true)
public class User implements Serializable {
    private static final long serialVersionUID = 1L;

    /** 主鍵  */
    private Long id;
    private String name;
    private String city;
    private String status;
    private Date createTime;
    private Date updateTime;
}

1.4.1.2、`Company.java`

@Data
public class Company {

	private Long id;
	private String name;
	private String companyNameEnglish;
	private String status;
	private Date createTime;
	private Date updateTime;
}

1.4.1.3、`DemoEntity.java`

@Data
@Accessors(chain = true)
public class DemoEntity implements Serializable {
    private static final long serialVersionUID = 1L;

    /**
     * 主鍵
     */
    private Long id;
    /** 姓名 */
    private String name;
    /** 手機號  */
    private String phone;
    /**  郵箱 */
    private String email;
    /** 年齡  */
    private Integer age;
    /**  10可用，99刪除  */
    private String status;
    /** 創建人 */
    private Long createUser;
    /** 創建人名稱  */
    private String createName;
    /**  創建時間 */
    private java.util.Date createTime;
    /**  更新人 */
    private Long updateUser;
    /** 更新人名稱 */
    private String updateName;
    /**  更新時間 */
    private java.util.Date updateTime;

}

1.4.2、DTO數據

1.4.2.1、`UserDTO.java`

@Data
@Accessors(chain = true)
@ApiModel(value = "demo實體類")
@JsonInclude(JsonInclude.Include.NON_NULL)
public class UserDTO {


    @ApiModelProperty(value = "主鍵", hidden = true)
    @JsonSerialize(using = JsonLongSerializer.class )
    private Long id;

    @ApiModelProperty(value = "姓名")
    @NotBlank(message = "姓名不能爲空", groups = ValidateGroup.HealerJean.class)
    private String name;

    @ApiModelProperty(value = "城市")
    private String city;

    @ApiModelProperty(value = "狀態", hidden = true)
    private String status;


    @ApiModelProperty(value = "創建時間", hidden = true)
    @JsonFormat(pattern = DateUtils.YYYY_MM_dd_HH_mm_ss, timezone = "GMT+8")
    private Date createTime;

    @ApiModelProperty(value = "修改時間", hidden = true)
    @JsonFormat(pattern = DateUtils.YYYY_MM_dd_HH_mm_ss, timezone = "GMT+8")
    private Date updateTime;

}

1.4.2.2、`CompanyDTO.java`


@Data
public class CompanyDTO {

	@JsonSerialize(using = JsonLongSerializer.class )
	private Long id;
	private String name;
	private String companyNameEnglish;
	private String status;


	@ApiModelProperty(value = "創建時間", hidden = true)
	@JsonFormat(pattern = DateUtils.YYYY_MM_dd_HH_mm_ss, timezone = "GMT+8")
	private Date createTime;

	@ApiModelProperty(value = "修改時間", hidden = true)
	@JsonFormat(pattern = DateUtils.YYYY_MM_dd_HH_mm_ss, timezone = "GMT+8")
	private Date updateTime;
}

1.4.2.3、`DemoDTO.java`

@Data
@Accessors(chain = true)
@ApiModel(value = "demo實體類")
@JsonInclude(JsonInclude.Include.NON_NULL)
public class DemoDTO extends PageQuery {

    @JsonSerialize(using = JsonLongSerializer.class )
    private Long id;

    @ApiModelProperty(value = "姓名")
    @NotBlank(message = "姓名不能爲空", groups = ValidateGroup.HealerJean.class)
    private String name;

    @ApiModelProperty(value = "年齡")
    private Integer age;

    @ApiModelProperty(value = "手機號")
    private String phone;

    @ApiModelProperty(value = "郵箱")
    private String email;

    @ApiModelProperty(value = "是否刪除，10可用，99刪除 ", hidden = true)
    private String status;

    @ApiModelProperty(value = "創建人", hidden = true)
    private Long createUser;

    @ApiModelProperty(value = "創建人名字", hidden = true)
    private String createName;

    @ApiModelProperty(value = "創建時間", hidden = true)
    private java.util.Date createTime;

    @ApiModelProperty(value = "更新人", hidden = true)
    private Long updateUser;

    @ApiModelProperty(value = "更新人名稱", hidden = true)
    private String updateName;

    @ApiModelProperty(hidden = true)
   private java.util.Date updateTime;

}

1.4.3、Mapper

1.4.3.1、`UserMapper.java`

public interface UserMapper extends BaseMapper<User> {


}

1.4.3.1、`CompanyMapper.java`

public interface CompanyMapper  extends BaseMapper<Company> {


}

1.4.3.1、`DemoEntityMapper.java`

public interface DemoEntityMapper extends BaseMapper<DemoEntity> {

}

1.4.4、`Service`

1.4.4.1、 `UserService.java`

public interface UserService {


    UserDTO insert(UserDTO userDTO);

    UserDTO findById(Long id);

    List<UserDTO> list();

}

1.4.4.2、 `CompanyService.java`

public interface CompanyService {


    CompanyDTO insert(CompanyDTO companyDTO);

    CompanyDTO findById(Long id);

    List<CompanyDTO> list();
}

1.4.4.3、 `DemoEntityService.java`

public interface DemoEntityService {


    DemoDTO insert(DemoDTO demoEntity);

    DemoDTO findById(Long id);

    List<DemoDTO> list();

}

1.4.5、`ServiceImpl.java`

1.4.5.1、`UserServiceImpl.java`

@Service
@Slf4j
public class UserServiceImpl implements UserService {

    @Resource
    private UserMapper userMapper;


    @Override
    public UserDTO insert(UserDTO userDTO) {
        User user = BeanUtils.dtoToUserDTO(userDTO);
        user.setStatus(StatusEnum.生效.code);
        userMapper.insert(user);
        userDTO.setId(user.getId());
        return userDTO;
    }

    @Override
    public UserDTO findById(Long id) {
        User user = userMapper.selectById(id);
        return user == null ? null : BeanUtils.userToDTO(user);
    }

    @Override
    public List<UserDTO> list() {
        List<User> users = userMapper.selectList(null);
        List<UserDTO> list = null;
        if (!EmptyUtil.isEmpty(users)) {
            list = users.stream().map(BeanUtils::userToDTO).collect(Collectors.toList());
        }
        return list;
    }

}

1.4.5.2、`CompanyServiceImpl.java`

@Service
public class CompanyServiceImpl implements CompanyService {

    @Resource
    private CompanyMapper companyMapper;

    @Override
    public CompanyDTO insert(CompanyDTO companyDTO) {
        Company company = BeanUtils.dtoToCompany(companyDTO);
        company.setStatus(StatusEnum.生效.code);
        companyMapper.insert(company);
        companyDTO.setId(company.getId());
        return companyDTO;
    }

    @Override
    public CompanyDTO findById(Long id) {
        Company company = companyMapper.selectById(id);
        return company == null ? null : BeanUtils.companyToDTO(company);
    }

    @Override
    public List<CompanyDTO> list() {
        List<Company> companys = companyMapper.selectList(null);
        List<CompanyDTO> list = null;
        if (!EmptyUtil.isEmpty(companys)) {
            list = companys.stream().map(BeanUtils::companyToDTO).collect(Collectors.toList());
        }
        return list;
    }
}

1.4.5.3、`DemoEntityServiceImpl.java`

@Service
@Slf4j
public class DemoEntityServiceImpl implements DemoEntityService {


    @Resource
    private DemoEntityMapper demoEntityMapper;

    @Resource
    private CompanyService companyService;
    @Resource
    private UserService userService;

    @Override
    public DemoDTO insert(DemoDTO demoDTO) {
        DemoEntity demoEntity = BeanUtils.dtoToDemo(demoDTO);
        demoEntity.setStatus(StatusEnum.生效.code);
        demoEntityMapper.insert(demoEntity);
        demoDTO.setId(demoEntity.getId());
        return demoDTO;
    }


    @Override
    public DemoDTO findById(Long id) {
        DemoEntity demoEntity = demoEntityMapper.selectById(id);
        return demoEntity == null ? null : BeanUtils.demoToDTO(demoEntity);
    }

    @Override
    public List<DemoDTO> list() {
        List<DemoDTO> collect = null;
        List<DemoEntity> list = demoEntityMapper.selectList(null);
        if (!EmptyUtil.isEmpty(list)) {
            collect = list.stream().map(BeanUtils::demoToDTO).collect(Collectors.toList());
        }
        return collect;
    }


}

1.4.6、`Controller`

1.4.6.1、`UserController.java`

@ApiResponses(value = {
        @ApiResponse(code = 200, message = "訪問正常"),
        @ApiResponse(code = 301, message = "邏輯錯誤"),
        @ApiResponse(code = 500, message = "系統錯誤"),
        @ApiResponse(code = 401, message = "未認證"),
        @ApiResponse(code = 403, message = "禁止訪問"),
        @ApiResponse(code = 404, message = "url錯誤")
})
@Api(description = "demo控制器")
@Controller
@RequestMapping("hlj/demo")
@Slf4j
public class UserController {



    @Autowired
    private UserService userService;

    @ApiOperation(value = "insert",
            notes = "insert",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @PostMapping(value = "insert", produces = "application/json; charset=utf-8")
    @ResponseBody
    public ResponseBean insert(UserDTO userDTO) {
        log.info("樣例--------mybaits-plus添加demo實體------數據信息{}", userDTO);
        String validate = ValidateUtils.validate(userDTO, ValidateGroup.HealerJean.class);
        if (!validate.equals(CommonConstants.COMMON_SUCCESS)) {
            throw new BusinessException(ResponseEnum.參數錯誤, validate);
        }
        return ResponseBean.buildSuccess(userService.insert(userDTO));
    }


    @ApiOperation(notes = "findById",
            value = "findById",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "demo主鍵", required = true, paramType = "path", dataType = "long"),
    })
    @GetMapping("findById/{id}")
    @ResponseBody
    public ResponseBean findById(@PathVariable Long id) {
        log.info("樣例--------findById------數據：id：{}", id);
        return ResponseBean.buildSuccess(userService.findById(id));
    }

    @ApiOperation(notes = "list",
            value = "list",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @GetMapping("list")
    @ResponseBody
    public ResponseBean list() {
        log.info("樣例--------list------");
        return ResponseBean.buildSuccess(userService.list());
    }


}

1.4.6.2、`CompanyController.java`

@ApiResponses(value = {
        @ApiResponse(code = 200, message = "訪問正常"),
        @ApiResponse(code = 301, message = "邏輯錯誤"),
        @ApiResponse(code = 500, message = "系統錯誤"),
        @ApiResponse(code = 401, message = "未認證"),
        @ApiResponse(code = 403, message = "禁止訪問"),
        @ApiResponse(code = 404, message = "url錯誤")
})
@Api(description = "demo控制器")
@Controller
@RequestMapping("hlj/company")
@Slf4j
public class CompanyController {


    @Autowired
    private CompanyService companyService;

    @ApiOperation(value = "insert",
            notes = "insert",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @PostMapping(value = "insert", produces = "application/json; charset=utf-8")
    @ResponseBody
    public ResponseBean insert(CompanyDTO companyDTO) {
        log.info("user--------insert------請求參數：{}", companyDTO);
        return ResponseBean.buildSuccess(companyService.insert(companyDTO));
    }


    @ApiOperation(notes = "findById",
            value = "findById",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "demo主鍵", required = true, paramType = "path", dataType = "long"),
    })
    @GetMapping("findById/{id}")
    @ResponseBody
    public ResponseBean findById(@PathVariable Long id) {
        log.info("company--------findById------id：{}", id);
        return ResponseBean.buildSuccess(companyService.findById(id));
    }



    @ApiOperation(notes = "list",
            value = "list",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @GetMapping("list")
    @ResponseBody
    public ResponseBean list() {
        log.info("company--------list------");
        return ResponseBean.buildSuccess(companyService.list());
    }

}

1.4.6.3、`DemoController.java`

@ApiResponses(value = {
        @ApiResponse(code = 200, message = "訪問正常"),
        @ApiResponse(code = 301, message = "邏輯錯誤"),
        @ApiResponse(code = 500, message = "系統錯誤"),
        @ApiResponse(code = 401, message = "未認證"),
        @ApiResponse(code = 403, message = "禁止訪問"),
        @ApiResponse(code = 404, message = "url錯誤")
})
@Api(description = "demo控制器")
@Controller
@RequestMapping("hlj/demo")
@Slf4j
public class DemoController {

    @Autowired
    private DemoEntityService demoEntityService;


    @ApiOperation(value = "insert",
            notes = "insert",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @PostMapping(value = "insert", produces = "application/json; charset=utf-8")
    @ResponseBody
    public ResponseBean insert(DemoDTO demoDTO) {
        log.info("demo--------insert------請求參數：{}", demoDTO);
        return ResponseBean.buildSuccess(demoEntityService.insert(demoDTO));
    }


    @ApiOperation(notes = "findById",
            value = "findById",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "demo主鍵", required = true, paramType = "path", dataType = "long"),
    })
    @GetMapping("findById/{id}")
    @ResponseBody
    public ResponseBean findById(@PathVariable Long id) {
        log.info("demo--------findById------id：{}", id);
        return ResponseBean.buildSuccess(demoEntityService.findById(id));
    }



    @ApiOperation(notes = "list",
            value = "list",
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE,
            response = UserDTO.class)
    @GetMapping("list")
    @ResponseBody
    public ResponseBean list() {
        log.info("demo--------list------");
        return ResponseBean.buildSuccess(demoEntityService.list());
    }

}

1.5、開始測試

以上自行測試，是前兩篇文章的測試結果相加

分庫分表之_垂直拆分（不同的表在不同的庫中）+ 讀寫分離

1、開始Demo

1.1、hlj-03-read_write-vertical_shard.sql

1.1.1、數據庫圖文

1.2、依賴

1.3、配置文件：application.properties

1.4、具體測試方法和類

1.4.1、實體類

1.4.1.1、User.java

1.4.1.2、Company.java

1.4.1.3、DemoEntity.java

1.4.2、DTO數據

1.4.2.1、UserDTO.java

1.4.2.2、CompanyDTO.java

1.4.2.3、DemoDTO.java

1.4.3、Mapper

1.4.3.1、UserMapper.java

1.4.3.1、CompanyMapper.java

1.4.3.1、DemoEntityMapper.java

1.4.4、Service

1.4.4.1、 UserService.java

1.4.4.2、 CompanyService.java

1.4.4.3、 DemoEntityService.java

1.4.5、ServiceImpl.java

1.4.5.1、UserServiceImpl.java

1.4.5.2、CompanyServiceImpl.java

1.4.5.3、DemoEntityServiceImpl.java

1.4.6、Controller

1.4.6.1、UserController.java

1.4.6.2、CompanyController.java

1.4.6.3、DemoController.java

1.5、開始測試

1.1、`hlj-03-read_write-vertical_shard.sql`

1.3、配置文件：`application.properties`

1.4.1.1、`User.java`

1.4.1.2、`Company.java`

1.4.1.3、`DemoEntity.java`

1.4.2.1、`UserDTO.java`

1.4.2.2、`CompanyDTO.java`

1.4.2.3、`DemoDTO.java`

1.4.3.1、`UserMapper.java`

1.4.3.1、`CompanyMapper.java`

1.4.3.1、`DemoEntityMapper.java`

1.4.4、`Service`

1.4.4.1、 `UserService.java`

1.4.4.2、 `CompanyService.java`

1.4.4.3、 `DemoEntityService.java`

1.4.5、`ServiceImpl.java`

1.4.5.1、`UserServiceImpl.java`

1.4.5.2、`CompanyServiceImpl.java`

1.4.5.3、`DemoEntityServiceImpl.java`

1.4.6、`Controller`

1.4.6.1、`UserController.java`

1.4.6.2、`CompanyController.java`

1.4.6.3、`DemoController.java`