Flowable 快速入门教程：SpringBoot 集成 Flowable + Flowable Modeler 导致自身 XML 扫描不到解决方案

ゞ浴缸里的玫瑰 2023-06-21 15:29 23阅读 0赞

### Flowable 快速入门教程：SpringBoot 集成 Flowable + Flowable Modeler 导致自身 XML 扫描不到解决方案 ###

*  前言
 *  手动创建 DataSource Bean
 *  新建 DatabaseAutoConfiguration.java
 *  配置修改
 *  启动器修改
 *  效果
 *  结尾

# 前言 #

本文承接：[Flowable 快速入门教程：SpringBoot 集成 Flowable + Flowable Modeler 流程配置可视化（超详细）][Flowable _SpringBoot _ Flowable _ Flowable Modeler]

建议：流程引擎与业务代码分开成两个分开，如果一定要再流程引擎项目中写自己的代码，发现自己 xml 扫描不到，请往下看。

# 手动创建 DataSource Bean #

如果缺少 DataSourceBean，可以选择手动创建

[DruidDatsSourceConfig.java 部分][DruidDatsSourceConfig.java]

# 新建 DatabaseAutoConfiguration.java #

把 `DatabaseConfiguration.java` 文件中的 `liquibase` 这个方法复制到自己这，这个是进行数据表转换的部分。  
xml 扫描不到是因为，之前是 `Flowable` 创建的 `SqlSessionFactory`，`DatabaseConfiguration` 是在 jar 包里，因此扫描不到自己项目包下的 xml，于是改为我们自行创建 `SqlSessionFactory`。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz_size_16_color_FFFFFF_t_70]  
**DatabaseAutoConfiguration.java**

@Configuration
    public class DatabaseAutoConfiguration { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(DatabaseAutoConfiguration.class);
    
        protected static final String LIQUIBASE_CHANGELOG_PREFIX = "ACT_DE_";
    
        @Bean
        public Liquibase liquibase(DataSource dataSource) { 
            LOGGER.info("Configuring Liquibase");
    
            Liquibase liquibase = null;
            try { 
                DatabaseConnection connection = new JdbcConnection(dataSource.getConnection());
                Database database = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(connection);
                database.setDatabaseChangeLogTableName(LIQUIBASE_CHANGELOG_PREFIX + database.getDatabaseChangeLogTableName());
                database.setDatabaseChangeLogLockTableName(LIQUIBASE_CHANGELOG_PREFIX + database.getDatabaseChangeLogLockTableName());
    
                liquibase = new Liquibase("META-INF/liquibase/flowable-modeler-app-db-changelog.xml", new ClassLoaderResourceAccessor(), database);
                liquibase.update("flowable");
                return liquibase;
            } catch (Exception e) { 
                throw new InternalServerErrorException("Error creating liquibase database", e);
            } finally { 
                closeDatabase(liquibase);
            }
        }
    
        private void closeDatabase(Liquibase liquibase) { 
            if (liquibase != null) { 
                Database database = liquibase.getDatabase();
                if (database != null) { 
                    try { 
                        database.close();
                    } catch (DatabaseException e) { 
                        LOGGER.warn("Error closing database", e);
                    }
                }
            }
        }
    }

# 配置修改 #

mybatis:
      # 新增 modeler-mybatis-mappings xml 扫描
      mapper-locations: mapper/*/*.xml, classpath*:mapper/*.xml, classpath:/META-INF/modeler-mybatis-mappings/*.xml
      configuration:
        log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
      # 参数配置
      configuration-properties:
        # 配置流程引擎参数，详情可见 DatabaseConfiguration
        blobType: BLOB
        boolValue: TRUE
        # 不要设置库名，否则会出现双库名 bug
        prefix: ''

# 启动器修改 #

把引用的 `DatabaseConfiguration` 改为 `DatabaseAutoConfiguration`

@Import(value={ 
            // 引入修改的配置
            ApplicationConfiguration.class,
            AppDispatcherServletConfiguration.class,
            // 引入 DatabaseConfiguration 表更新转换
    // DatabaseConfiguration.class,
            // 引入 DatabaseAutoConfiguration 表更新转换
            DatabaseAutoConfiguration.class})
    // 开启注册中心
    @EnableDiscoveryClient
    @ComponentScan(basePackages = { "com.springcloud.*"})
    @MapperScan("com.springcloud.*.dao")
    @SpringBootApplication(exclude={ SecurityAutoConfiguration.class})
    public class FlowableApplication { 
        public static void main(String[] args) { 
            SpringApplication.run(FlowableApplication.class, args);
        }
    }

# 效果 #

表更新  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz_size_16_color_FFFFFF_t_70 1]  
调用自己的接口  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz_size_16_color_FFFFFF_t_70 3]  
调用流程引擎接口  
![在这里插入图片描述][2019121317440382.png]

# 结尾 #

参考项目：[https://gitee.com/linjinp-spring-cloud/linjinp-spring-cloud][https_gitee.com_linjinp-spring-cloud_linjinp-spring-cloud]  
文件位置：  
DatabaseAutoConfiguration.java：flowable-demo 模块下的 flowable.conf 包下  
接口：flowable-demo 模块下的 flowable.api 包下

[Flowable _SpringBoot _ Flowable _ Flowable Modeler]: https://blog.csdn.net/qq_37143673/article/details/102851433/
[DruidDatsSourceConfig.java]: https://blog.csdn.net/qq_37143673/article/details/94397090/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200303142015423.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20191213163912559.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20191213174307625.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20191213174254923.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3MTQzNjcz,size_16,color_FFFFFF,t_70
[2019121317440382.png]: https://img-blog.csdnimg.cn/2019121317440382.png
[https_gitee.com_linjinp-spring-cloud_linjinp-spring-cloud]: https://gitee.com/linjinp-spring-cloud/linjinp-spring-cloud/