mybatis-plus、hikariCP动态数据源

最近的项目使用多数据源，于是想起之前mybatis-plus系列的dynamic-datasource-springboot-starter

由于springboot2.x使用hikari作为默认数据库连接池，就是用springboot2.X+mybatis-plus3.x+dynamic-datasource-springboot-starter3.0.0进行了集成，代码如下

MybatisConfiguration.java

package com.share.config;
 
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
@Configuration
public class MybatisConfiguration {
 
    /**
     * 分页插件注册
     * @return
     */
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }
 
}

　　BaseEntity.java

package com.share.domain;
 
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import lombok.Data;
 
import java.io.Serializable;
import java.util.Date;
 
 
@Data
public class BaseEntity implements Serializable {
    private static final long serialVersionUID = 5741450406019549099L;
    @TableId(type = IdType.AUTO)
    private Long id;
    @TableField(value = "create_time")
    private Date createTime;
    @TableField(value = "update_time")
    private Date updateTime;
    @TableField(value = "delete_time")
    private Date deleteTime;
 
}

　　User.java

package com.share.domain;
 
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableLogic;
import com.baomidou.mybatisplus.annotation.TableName;
import com.baomidou.mybatisplus.annotation.Version;
import lombok.Data;
 
import java.util.Date;
 
 
@Data
@TableName(value ="user")
public class User extends BaseEntity {
    @Version
    private Integer version;
    private String username;
    private String nickname;
    private String password;
    private String email;
    private String phone;
    private Integer age;
    private Integer gender;
    private Integer status;
    @TableField(value = "last_login_time")
    private Date lastLoginTime;
 
    @TableLogic(value = "0", delval = "1")
    private Integer del;
}

　　UserMapper.java

 1 package com.share.mapper;
 2 
 3 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 4 import com.share.domain.User;
 5 
 6 /**
 7  * @desc:
 8  * @author:caifan
 9  * @date:2020/3/15
10  */
11 public interface UserMapper extends BaseMapper<User> {
12 }

UserRest.java

package com.share.rest;
 
import com.share.domain.User;
import com.share.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
 
import java.util.Date;
 
@RestController
@RequestMapping("/rest/user")
public class UserRest {
    @Autowired
    private UserService userService;
 
    @RequestMapping(value = "/save1", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
    public void save1(@RequestBody User user) {
        if (null == user.getUpdateTime()) {
            user.setUpdateTime(new Date());
        }
        userService.saveUser1(user);
    }
 
    @RequestMapping(value = "/save2", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
    public void save2(@RequestBody User user) {
        if (null == user.getUpdateTime()) {
            user.setUpdateTime(new Date());
        }
        userService.saveUser2(user);
    }
}

　　UserService.java

 1 package com.share.service;
 2 
 3 import com.baomidou.dynamic.datasource.annotation.DS;
 4 import com.share.domain.User;
 5 import com.share.mapper.UserMapper;
 6 import org.springframework.stereotype.Service;
 7 import org.springframework.transaction.annotation.Transactional;
 8 
 9 import javax.annotation.Resource;
10 
11 @Service
12 @Transactional
13 @DS("ds1")
14 public class UserService {
15     @Resource
16     private UserMapper userMapper;
17 
18     public void saveUser1(User user) {
19         userMapper.insert(user);
20     }
21 
22     public User findById(Long id) {
23         return userMapper.selectById(id);
24     }
25 
26     @DS("ds2")
27     public void saveUser2(User user) {
28         userMapper.insert(user);
29     }
30 
31 }

MybatisApplication.java

 1 package com.share;
 2 
 3 import org.mybatis.spring.annotation.MapperScan;
 4 import org.springframework.boot.SpringApplication;
 5 import org.springframework.boot.autoconfigure.SpringBootApplication;
 6 
 7 @SpringBootApplication
 8 @MapperScan(value = {"com.share.mapper"})
 9 public class MybatisApplication {
10     public static void main(String[] args) {
11         SpringApplication.run(MybatisApplication.class, args);
12     }
13 }

配置文件application.properties

server.port=9001

mybatis-plus.global-config.db-config.id-type=auto
mybatis-plus.global-config.db-config.logic-delete-field=del
mybatis-plus.global-config.db-config.logic-delete-value=1
mybatis-plus.global-config.db-config.logic-not-delete-value=0

mybatis-plus.global-config.db-config.field-strategy=not_empty
spring.datasource.dynamic.primary=ds1
spring.datasource.dynamic.datasource.ds1.username=root
spring.datasource.dynamic.datasource.ds1.password=123456
spring.datasource.dynamic.datasource.ds1.url=jdbc:mysql://localhost:3306/demo_ds_0
spring.datasource.dynamic.datasource.ds1.driver-class-name=com.mysql.jdbc.Driver

#动态数据源配置
spring.datasource.dynamic.datasource.ds1.hikari.jdbc-url=jdbc:mysql://localhost:3306/demo_ds_0
spring.datasource.dynamic.datasource.ds1.hikari.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.dynamic.datasource.ds1.hikari.username=root
spring.datasource.dynamic.datasource.ds1.hikari.password=123456
spring.datasource.dynamic.datasource.ds1.hikari.connection-test-query=select 1 from dual
spring.datasource.dynamic.datasource.ds1.hikari.is-auto-commit=true


spring.datasource.dynamic.datasource.ds2.username=root
spring.datasource.dynamic.datasource.ds2.password=123456
spring.datasource.dynamic.datasource.ds2.url=jdbc:mysql://localhost:3306/demo_ds_1
spring.datasource.dynamic.datasource.ds2.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.dynamic.datasource.ds2.hikari.jdbc-url=jdbc:mysql://localhost:3306/demo_ds_1
spring.datasource.dynamic.datasource.ds2.hikari.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.dynamic.datasource.ds2.hikari.username=root
spring.datasource.dynamic.datasource.ds2.hikari.password=123456

完整代码