SpringBoot web服务多个数据源只有一个有效

// 数据源配置类
@Configuration
public class DataSourceConfig {
    @Bean
    @ConfigurationProperties(prefix = "datasource.primary")
    public DataSource primaryDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean
    @ConfigurationProperties(prefix = "datasource.secondary")
    public DataSource secondaryDataSource() {
        return DataSourceBuilder.create().build();
    }
}

// 数据源切换注解
@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface DataSourceSwitch {
    String value() default "primary";
}

// 数据源切换切面
@Aspect
@Component
public class DataSourceSwitchAspect {
    @Before("@annotation(dataSourceSwitch)")
    public void switchDataSource(JoinPoint joinPoint, DataSourceSwitch dataSourceSwitch) {
        String dataSourceName = dataSourceSwitch.value();
        // 根据业务逻辑切换数据源
        if (dataSourceName.equals("primary")) {
            DataSourceContextHolder.setDataSource("primaryDataSource");
        } else if (dataSourceName.equals("secondary")) {
            DataSourceContextHolder.setDataSource("secondaryDataSource");
        }
    }
}

// 使用数据源切换注解
@Service
public class UserService {
    @DataSourceSwitch("primary")
    public void addUser(User user) {
        // 添加用户逻辑
    }

    @DataSourceSwitch("secondary")
    public void updateUser(User user) {
        // 更新用户逻辑
    }
}