SpringBoot与Activiti7整合(一)

最近公司要将原来老系统中的服务迁移出来,涉及到工作流的东西,新系统定的工作流用Activiti,所以开始学习Activiti,并记录学习、工作中遇到的问题及解决方法。

添加依赖

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

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

        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring-boot-starter</artifactId>
            <version>7.1.0.M4</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

配置文件

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    username: root
    password: 123456
    url: jdbc:mysql://127.0.0.1:3306/activiti?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
  activiti:
    check-process-definitions: true #自动检查、部署流程定义文件
    database-schema-update: true  #自动更新数据库结构

注意此处用的activiti jar包版本为7.1.0.M4,这时直接启动服务就可以生成相关的17张表了.

历史表默认不生成,如果需要历史表,spring.activiti配置添加

spring:
  activiti:
    check-process-definitions: true #自动检查、部署流程定义文件
    database-schema-update: true  #自动更新数据库结构
    db-history-used: true
    history-level: full

ACT_RE_ ：RE代表repository。具有此前缀的表包含静态*信息，例如流程定义和流程资源（图像，规则等）。

ACT_RU_ ：RU*代表runtime。这些是运行时表，其中包含流程实例，用户任务，变量，作业等的运行时数据。Activiti仅在流程实例执行期间存储运行时数据，并在流程实例结束时删除记录。这样可以使运行时表较小而又快速。

ACT_HI_ ：HI*代表history。这些表包含历史数据，例如过去的流程实例，变量，任务等。

ACT_GE_ *：general数据，用于各种用例中。

如果你用的是最新的activiti-spring-boot-starter 7.1.0.M5版本的的依赖,启动后报错:

Parameter 0 of method userGroupManager in org.activiti.core.common.spring.identity.config.ActivitiSpringIdentityAutoConfiguration required a bean of type 'org.springframework.security.core.userdetails.UserDetailsService' that could not be found.

The following candidates were found but could not be injected:
    - Bean method 'inMemoryUserDetailsManager' in 'UserDetailsServiceAutoConfiguration' not loaded because @ConditionalOnBean did not find required type 'org.springframework.security.config.annotation.ObjectPostProcessor'

因为SpringSecurity的原因,根据网上两种排除配置的方法

@SpringBootApplication(exclude = {
        SecurityAutoConfiguration.class, ManagementWebSecurityAutoConfiguration.class
})
public class SpringbootAcitvitiApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootAcitvitiApplication.class, args);
    }

}

然而这种方法无效,还有一种是用activiti包的SecurityAutoConfiguration.class,但是这个版本的jar包中并没有这个类。

解决办法pom.xml中添加

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

添加官方案例中的文件

/*
 * Copyright 2018 Alfresco, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.wx.springboot_acitviti.scutity;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

@Configuration
@EnableWebSecurity
public class DemoApplicationConfiguration extends WebSecurityConfigurerAdapter {

    private Logger logger = LoggerFactory.getLogger(DemoApplicationConfiguration.class);

    @Override
    @Autowired
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService());
    }

    @Bean
    public UserDetailsService myUserDetailsService() {

        InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();

        String[][] usersGroupsAndRoles = {
                {"salaboy", "password", "ROLE_ACTIVITI_USER", "GROUP_activitiTeam"},
                {"ryandawsonuk", "password", "ROLE_ACTIVITI_USER", "GROUP_activitiTeam"},
                {"erdemedeiros", "password", "ROLE_ACTIVITI_USER", "GROUP_activitiTeam"},
                {"other", "password", "ROLE_ACTIVITI_USER", "GROUP_otherTeam"},
                {"admin", "password", "ROLE_ACTIVITI_ADMIN"},
        };

        for (String[] user : usersGroupsAndRoles) {
            List<String> authoritiesStrings = Arrays.asList(Arrays.copyOfRange(user, 2, user.length));
            logger.info("> Registering new user: " + user[0] + " with the following Authorities[" + authoritiesStrings + "]");
            inMemoryUserDetailsManager.createUser(new User(user[0], passwordEncoder().encode(user[1]),
                    authoritiesStrings.stream().map(s -> new SimpleGrantedAuthority(s)).collect(Collectors.toList())));
        }


        return inMemoryUserDetailsManager;
    }


    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .csrf().disable()
                .authorizeRequests()
                .anyRequest()
                .authenticated()
                .and()
                .httpBasic();


    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

启动发现表可以创建出来,但是又报了一种错误

Caused by: java.sql.SQLSyntaxErrorException: Unknown column 'VERSION_' in 'field list'

查看表,确实没有这个字段,Github上Issuses中有人提到这个问题,官方回复这个版本有这个BUG,下个版本解决,所以就不要使用7.1.0.M5版本的activiti了

SpringBoot与Activiti7整合(一)

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