一、pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.0-SNAPSHOT</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.xz</groupId>
    <artifactId>ss</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>ss</name>
    <description>ShardingSphere Demo for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>

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

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

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

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

        <!-- https://mvnrepository.com/artifact/org.apache.shardingsphere/sharding-jdbc-spring-boot-starter -->
        <dependency>
            <groupId>org.apache.shardingsphere</groupId>
            <artifactId>sharding-jdbc-spring-boot-starter</artifactId>
            <version>4.1.1</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.3</version>
        </dependency>

    </dependencies>

    <!--<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>-->

    <repositories>

        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
        </repository>

        <repository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>

    </repositories>

    <pluginRepositories>

        <pluginRepository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
        </pluginRepository>

        <pluginRepository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </pluginRepository>

    </pluginRepositories>

</project>

二、yml文件配置

server:
  port: 8072

com:
  xz:
    db:
      ip: 127.0.0.1
      port: 3306
      database:
        ss0: ss0
        ss1: ss1
      username: root
      password: root
      url-prefix: jdbc:mysql://${com.xz.db.ip}:${com.xz.db.port}
      url-suffix: autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false&serverTimezone=GMT%2B8&rewriteBatchedStatements=true
spring:
  shardingsphere:
    datasource:
      # 数据源名称集合
      names: ss0, ss1
      ss0:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: ${com.xz.db.url-prefix}/${com.xz.db.database.ss0}?${com.xz.db.url-suffix}
        username: ${com.xz.db.username}
        password: ${com.xz.db.password}
      ss1:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: ${com.xz.db.url-prefix}/${com.xz.db.database.ss1}?${com.xz.db.url-suffix}
        username: ${com.xz.db.username}
        password: ${com.xz.db.password}
    sharding:
      # 默认分库
      default-database-strategy:
        inline:
          sharding-column: id
          algorithm-expression: ss$->{id % 2}
      # 分表
      tables:
        user: # 表名
          actual-data-nodes: ss$->{0..1}.user$->{0..4}
          table-strategy:
            inline:
              sharding-column: id
              algorithm-expression: user$->{id % 5}
          key-generator:
            column: id
            # 雪花算法生成id
            type: SNOWFLAKE
    #打印sharding的日志
    props:
      sql:
        show: true
  # jpa 配置
  jpa:
    hibernate:
      # 自动建表 最好改成 none
      ddl-auto: update
    show-sql: true
    database-platform: org.hibernate.dialect.MySQL5InnoDBDialect

  devtools:
    restart:
      enabled: true

#日志位置
logging:
  config: classpath:logback-spring.xml