SpringBoot + Activiti7 + Mybatis Plus +多数据源配置

pom依赖

SpringBoot版本2.1.3.RELEASE
Activiti版本7.1.24
Mybatis Plus的版本3X，引入Mybatis Plus后，不要再应用Mybatis
sqlserver2000版本的依赖比较复杂，建议使用2005的后续版本。
Activiti自动创建表单的，需要使用sqlserver2005后续版本，之前的版本需要手动创建表单，不建议使用
其它引入包版本最好与文章内使用的相同，避免产生冲突

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>8</java.version>
        <maven.compiler.source>${java.version}</maven.compiler.source>
        <maven.compiler.target>${java.version}</maven.compiler.target>
        <activiti-dependencies.version>7.1.24</activiti-dependencies.version>
        <!--        <tomcat.version>7.0.61</tomcat.version>-->
    </properties>

    <dependencyManagement>
        <!-- https://mvnrepository.com/artifact/org.activiti.dependencies/activiti-dependencies -->
        <dependencies>
            <dependency>
                <groupId>org.activiti.dependencies</groupId>
                <artifactId>activiti-dependencies</artifactId>
                <version>${activiti-dependencies.version}</version>
                <scope>import</scope>
                <type>pom</type>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring-boot-starter</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>de.odysseus.juel</groupId>
                    <artifactId>juel-api</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>de.odysseus.juel</groupId>
                    <artifactId>juel-spi</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.mybatis</groupId>
                    <artifactId>mybatis</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>el-impl</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <!-- mysql数据库 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>8.0.15</scope>
        </dependency>
        <!-- sql server数据库 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.21</version>
        </dependency>
        <!--        <dependency>-->
        <!--            <groupId>com.microsoft.sqlserver</groupId>-->
        <!--            <artifactId>mssql-jdbc</artifactId>-->
        <!--            <version>6.4.0.jre8</version>-->
        <!--        </dependency>-->
        <dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>sqljdbc4</artifactId>
            <version>3.0</version>
        </dependency>
        <!-- 测试 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>


        <!--        Mybatis-Plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.0.2</version>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
        </dependency>
        <!--        <dependency>-->
        <!--            <groupId>com.baomidou</groupId>-->
        <!--            <artifactId>mybatis-plus</artifactId>-->
        <!--            <version>3.3.2</version>-->
        <!--        </dependency>-->


        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.18</version>
        </dependency>
        <!--        commons-->
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2.2</version>
        </dependency>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.10</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.5</version>
        </dependency>
        <!-- email -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-email</artifactId>
            <version>1.4</version>
        </dependency>
        <!--        redis-->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.8.1</version>
            <type>jar</type>
        </dependency>
        <!--        lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <!--        guava-->
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-guava</artifactId>
            <version>2.10.3</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-core-asl</artifactId>
            <version>1.9.12</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>1.9.12</version>
        </dependency>
        <!--        fastjson-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.62</version>
        </dependency>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-reflect</artifactId>
            <version>1.3.70</version>
        </dependency>
        <!--        jsp配置-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <version>7.0.61</version>

        </dependency>

        <!--        junit 使用Rule-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>

    </dependencies>

yml的数据库配置

多数据源使用的是sqlserver
mysql如其中一项为mysql,按照备注使用
数据库地址、名称、用户名、密码按照自己的设置配置

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    ds1:
      driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver
      url: jdbc:sqlserver://10.40.0.123:1433;DatabaseName=contract1 #服务器地址和数据库名按照自己的服务器配置
      username: admin_user
      password: 123456
    ds2:
#      mysql-connect-method
#      driver-class-name: com.mysql.cj.jdbc.Driver
#      url: jdbc:mysql://localhost:3306/test1?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=Asia/Shanghai&nullCatalogMeansCurrent=true
#      username: root
#      password:
      driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver
      url: jdbc:sqlserver://10.40.0.456:1433;DatabaseName=contract2
      username: admin_user
      password: 123456

多数据源配置

增加分页插件配置

@Configuration
@MapperScan("com.oa.*.dao") #你的dao文件夹地址
public class MybatisPlusConfig {
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }
}

数据源配置

@Configuration
public class DataSourceConfiguration {
    @Bean(name = "ds1DataSourceProperties")
    @Primary
    @ConfigurationProperties(prefix = "spring.datasource.ds1")
    public DataSourceProperties ds1DataSourceProperties(){
        return new DataSourceProperties();
    }

    @Primary
    @Bean(name = "ds1DataSource")
    public DataSource ds1DataSource(@Qualifier("ds1DataSourceProperties") DataSourceProperties dataSourceProperties){
        return dataSourceProperties.initializeDataSourceBuilder().build();
    }

    @Bean(name = "ds2DataSourceProperties")
    @ConfigurationProperties(prefix = "spring.datasource.ds2")
    public DataSourceProperties ds2DataSourceProperties(){
        return new DataSourceProperties();
    }

    @Bean(name = "ds2DataSource")
    public DataSource ds2DataSource(@Qualifier("ds2DataSourceProperties") DataSourceProperties dataSourceProperties){
        return dataSourceProperties.initializeDataSourceBuilder().build();
    }
}

JDBCTemPlate配置

@Configuration
public class JdbcTemplateDataSoureConfig {
    @Primary
    @Bean(name = "ds1JdbcTemplate")
    public JdbcTemplate ds1JdbcTemplate(@Qualifier("ds1DataSource")DataSource dataSource){
        return new JdbcTemplate(dataSource);
    }

    @Bean(name = "ds2JdbcTemplate")
    public JdbcTemplate ds2JdbcTemplate(@Qualifier("ds2DataSource")DataSource dataSource){
        return new JdbcTemplate(dataSource);
    }
}

SqlSessionFactory和DataSourceTransactionManager配置。数据库1和数据库2要分开
数据库1无需增加@MapperScan，主数据库会自动扫描

@Configuration
public class MybatisPlusConfig4ds1 {

    @Primary
    @Bean("ds1SqlSessionFactory")
    public SqlSessionFactory ds1SqlSessionFactory(@Qualifier("ds1DataSource")DataSource dataSource) throws Exception {
        MybatisSqlSessionFactoryBean sqlSessionFactory = new MybatisSqlSessionFactoryBean();
        sqlSessionFactory.setDataSource(dataSource);


        MybatisConfiguration configuration = new MybatisConfiguration();
        configuration.setDefaultScriptingLanguage(MybatisXMLLanguageDriver.class);
        configuration.setJdbcTypeForNull(JdbcType.NULL);
        sqlSessionFactory.setConfiguration(configuration);


        sqlSessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath*:mappers/*.xml"));
        sqlSessionFactory.setPlugins(new Interceptor[]{
                new PaginationInterceptor(),
                new PerformanceInterceptor()
        });
        return sqlSessionFactory.getObject();
    }

    @Primary
    @Bean(name = "ds1TransactionManager")
    public DataSourceTransactionManager ds1TransactionManager(@Qualifier("ds1DataSource")DataSource dataSource){
        return new DataSourceTransactionManager(dataSource);
    }

    @Primary
    @Bean(name="ds1SqlSessionTemplate")
    public SqlSessionTemplate ds1SqlSessionTemplate(@Qualifier("ds1SqlSessionFactory")SqlSessionFactory sqlSessionFactory){
        return new SqlSessionTemplate(sqlSessionFactory);
    }
}

@Configuration
@MapperScan(basePackages = "com.oa.*.dao2",sqlSessionTemplateRef = "ds2SqlSessionTemplate")
public class MybatisPlusConfig4ds2 {

    @Bean("ds2SqlSessionFactory")
    public SqlSessionFactory ds2SqlSessionFactory(@Qualifier("ds2DataSource")DataSource dataSource) throws Exception {
        MybatisSqlSessionFactoryBean sqlSessionFactory = new MybatisSqlSessionFactoryBean();
        sqlSessionFactory.setDataSource(dataSource);

        MybatisConfiguration configuration = new MybatisConfiguration();
        configuration.setDefaultScriptingLanguage(MybatisXMLLanguageDriver.class);
        configuration.setJdbcTypeForNull(JdbcType.NULL);
        sqlSessionFactory.setConfiguration(configuration);



        sqlSessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath*:mappers/server190/*.xml"));
        sqlSessionFactory.setPlugins(new Interceptor[]{
                new PaginationInterceptor(),
                new PerformanceInterceptor()
        });

        return sqlSessionFactory.getObject();

    }

    @Bean(name = "ds2TransactionManager")
    public DataSourceTransactionManager ds2TransactionManager(@Qualifier("ds2DataSource")DataSource dataSource){
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name="ds2SqlSessionTemplate")
    public SqlSessionTemplate ds2SqlSessionTemplate(@Qualifier("ds2SqlSessionFactory")SqlSessionFactory sqlSessionFactory){
        return new SqlSessionTemplate(sqlSessionFactory);
    }
}

本文章借鉴了https://www.jianshu.com/p/dfd5ae340011，但增加了无冲突依赖的版本，同时增加了Activiti的依赖。