国产综合精品,污污的网站在线观看,亚洲一区二区三区免费在线观看

前言

最近需要用到工作流，選擇了Activiti，剛開始配置起來并沒有很順利。記錄一下希望對讀者們有幫助。

先來看我這邊項目的環(huán)境：主要為JDK1.8，SpringbBoot2.3.5，MyBatis-Plus3.3.2，

MySql8.0.21，Shiro1.5.3，idea 2019.3

<java.version>1.8</java.version>
<spring.cloud.version>Hoxton.SR9</spring.cloud.version>
<spring.boot.version>2.3.5.RELEASE</spring.boot.version>
<ali.cloud.version>2.2.1.RELEASE</ali.cloud.version>
<ali.druid.version>1.1.13</ali.druid.version>
<mybatis.plus.version>3.3.2</mybatis.plus.version>
<mysql.version>8.0.21</mysql.version>
<shiro.version>1.5.3</shiro.version>

關于Activiti的配置文件，在nacos中管理yml

數(shù)據(jù)庫參數(shù)配置文件

spring:
datasource:
  type: com.alibaba.druid.pool.DruidDataSource
  druid:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://locahost:3306/activiti_test?useUnicode=true&characterEncoding=UTF-8
    username: developer
    password: developer
    initial-size: 10
    max-active: 100
    min-idle: 10
    max-wait: 60000
    pool-prepared-statements: true
    max-pool-prepared-statement-per-connection-size: 20
    time-between-eviction-runs-millis: 60000
    min-evictable-idle-time-millis: 300000

activiti配置文件

spring:
activiti:
  #1.flase： 默認值。activiti在啟動時，會對比數(shù)據(jù)庫表中保存的版本，如果沒有表或者版本不匹配，將拋出異常
  #2.true： activiti會對數(shù)據(jù)庫中所有表進行更新操作。如果表不存在，則自動創(chuàng)建
  #3.create_drop： 在activiti啟動時創(chuàng)建表，在關閉時刪除表（必須手動關閉引擎，才能刪除表）
  #4.drop-create： 在activiti啟動時刪除原來的舊表，然后在創(chuàng)建新表（不需要手動關閉引擎）
  database-schema-update: true
  #檢測歷史表是否存在
  db-history-used: true
  #記錄歷史等級 可配置的歷史級別有none, activity, audit, full
  history-level: full
  #校驗流程文件，默認校驗resources下的processes文件夾里的流程文件
  check-process-definitions: false

理想情況下，當啟動項目后，會自動生成25張表。

錯誤一：shiro與serurity沖突

引用Activiti7.1.0.M6

<!-- https://mvnrepository.com/artifact/org.activiti/activiti-spring-boot-starter -->
<dependency>
  <groupId>org.activiti</groupId>
  <artifactId>activiti-spring-boot-starter</artifactId>
  <version>7.1.0.M6</version>
</dependency>

發(fā)現(xiàn)啟動報錯。報錯信息如下：

Description:

The bean 'securityManager', defined in class path resource [org/activiti/core/common/spring/security/config/ActivitiSpringSecurityAutoConfiguration.class], could not be registered. A bean with that name has already been defined in class path resource [com/lidomtech/erp/admin/modules/security/config/ShiroConfig.class] and overriding is disabled.

Action:

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

Disconnected from the target VM, address: '127.0.0.1:5571', transport: 'socket'

Process finished with exit code 0

很明顯，這里提示ActivitiSpringSecurityAutoConfiguration與ShiroConfig沖突了。小編項目里面運用的是Shiro，而Activiti默認引用了SpringSecurity。

處理：在啟動類屏蔽SpringSecurity

@SpringBootApplication(exclude = {

  org.springframework.boot.actuate.autoconfigure.security.servlet.ManagementWebSecurityAutoConfiguration.class,
      org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration.class
})

小編心想，可以啟動成功了吧！

再次運行，沒成想，又報了同樣的錯誤！！這回納悶了，是不是版本太高了？經(jīng)查閱，原來Activiti強引用了SpringSecurity里的內(nèi)容，強引用UserDetailsService，所以我們還需要把版本降到7.1.0.M4及以下。

處理：更換版本7.1.0.M4及以下

<!-- https://mvnrepository.com/artifact/org.activiti/activiti-spring-boot-starter -->
<dependency>
  <groupId>org.activiti</groupId>
  <artifactId>activiti-spring-boot-starter</artifactId>
  <version>7.1.0.M2</version>
</dependency>

這回可以了吧？！

再次運行

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

com.baomidou.mybatisplus.core.MybatisMapperAnnotationBuilder.getLanguageDriver(MybatisMapperAnnotationBuilder.java:371)

The following method did not exist:

com.baomidou.mybatisplus.core.MybatisConfiguration.getLanguageDriver(Ljava/lang/Class;)Lorg/apache/ibatis/scripting/LanguageDriver;

啊這，與mybatisplus沖突

錯誤二：與mybatis沖突

經(jīng)查官網(wǎng)，activiti會有默認的MyBatis連接池設置，需要講其依賴的MyBatis注釋，才不會引項目中的MyBatis沖突

處理：注釋包中的MyBatis

<dependency>
			<groupId>org.activiti</groupId>
			<artifactId>activiti-spring-boot-starter</artifactId>
			<exclusions>
				<exclusion>
					<groupId>org.mybatis</groupId>
					<artifactId>mybatis</artifactId>
				</exclusion>
			</exclusions>
			<version>7.1.0.M2</version>
		</dependency>

接著，再次啟動，啟動成功！

順利生成25張表

SpringCloud整合Activiti過程中的踩坑記錄