Activiti7发布正式版之后,它与springboot2.x已经完全支持整合开发;我们可以将activiti7与springboot整合开发的坐标引入到工程中,从而达到springboot支持activiti7整合;
springboot整个activiti7的具体步骤如下:
1.添加springboot整个activiti7的坐标;
2.添加SpringSecurity安全框架的整合配置信息;
3.使用activiti7新支持的类来实现工作流开发;
ProcessRuntime接口;
TaskRuntime接口;
4.使用新的API实现工作流开发,主要包括;
流程定义查询
启动流程实例
任务的查询
任务的完成
1.整合实例如下:
1.1 导入依赖
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter</artifactId>
<version>7.0.0.Beta2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.5</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
</dependencies>
1.2 application.yml配置文件
spring:
datasource:
url: jdbc:mysql://localhost:3306/activiti-wn?useUnicode=true&characterEncoding=utf8&serverT imezone=GMT
username : root
password : 123
driver-class-name: com.mysql.jdbc.Driver
activiti:
db-history-used: true #开启历史信息
1.3 添加SecurityUtil类
为了能够快速实现SpringSecurity安全框架的配置,所以添加一个组件;
package com.wn.activiti;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.context.SecurityContextImpl;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.stereotype.Component;
import java.util.Collection;
@Component
public class SecurityUtil {
@Autowired
private UserDetailsService userDetailsService;
public void logInAs(String username) {
UserDetails user = userDetailsService.loadUserByUsername(username);
if (user == null) {
throw new IllegalStateException("User " + username + " doesn't exist, please provide a valid user");
}
SecurityContextHolder.setContext(new SecurityContextImpl(new Authentication() {
@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
return user.getAuthorities();
}
@Override
public Object getCredentials() {
return user.getPassword();
}
@Override
public Object getDetails() {
return user;
}
@Override
public Object getPrincipal() {
return user;
}
@Override
public boolean isAuthenticated() {
return true;
}
@Override
public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {
}
@Override
public String getName() {
return user.getUsername();
}
}));
org.activiti.engine.impl.identity.Authentication.setAuthenticatedUserId(username);
}
}
1.4 添加DemoApplicationConfig 类
在 Activiti7 官方下载的 Example 中找到 DemoApplicationConfig 类,它的作用是为了实现SpringSecurity 框架的用户权限的配置,这样我们就可以在系统中使用用户权限信息。本次项目中基本是在文件中定义出来的用户信息,当然也可以是数据库中查询的用户权限信息。
/*
* 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.wn.activiti;
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();
}
}
1.5 将流程图放在resources下的processes包里,然后启动springboot
1.6 查询流程定义信息
@RestController
@RequestMapping("/activiti")
public class ActivitiController {
@Resource
private ProcessRuntime processRuntime;
@Resource
private TaskRuntime taskRuntime;
@Resource
private SecurityUtil securityUtil;
@Resource
private TaskService taskService;
/**
* 查询流程定义
*/
@RequestMapping("/getProcess")
public void getProcess(){
//查询所有流程定义信息
Page<ProcessDefinition> processDefinitionPage = processRuntime.processDefinitions(Pageable.of(0, 10));
System.out.println("当前流程定义的数量:"+processDefinitionPage.getTotalItems());
//获取流程信息
for (ProcessDefinition processDefinition:processDefinitionPage.getContent()) {
System.out.println("流程定义信息"+processDefinition);
}
}
访问页面的时候会让你输入用户名和密码
1.7 启动流程实例
/**
* 启动流程示例
*/
@RequestMapping("/startInstance")
public void startInstance(){
ProcessInstance instance = processRuntime.start(ProcessPayloadBuilder.start().withProcessDefinitionKey("demo").build());
System.out.println(instance.getId());
}
1.8 获取任务,拾取任务
/**
* 获取任务,拾取任务,并且执行
*/
@RequestMapping("/getTask")
public void getTask(){
securityUtil.logInAs("salaboy"); //指定组内任务人
Page<Task> tasks = taskRuntime.tasks(Pageable.of(0, 10));
if(tasks.getTotalItems()>0){
for (Task task:tasks.getContent()) {
System.out.println("任务名称:"+task.getName());
//拾取任务
taskRuntime.claim(TaskPayloadBuilder.claim().withTaskId(task.getId()).build());
//执行任务
taskRuntime.complete(TaskPayloadBuilder.complete().withTaskId(task.getId()).build());
}
}
}
知道流程结束