之前画流程图都是用tomcat启动flowable modeler，但是这样启动就不能在分配任务用户/用户组的时候查询自己系统里的数据。所以现在需要把flowable modeler集成到项目里来。
之前自己也搜索了很多文章，都感觉不是很清晰，可能也是因为我刚接触不久。现在自己集成好了之后，记录一下自己学习的结果。
首先需要创建一个springboot应用，pom文件中引入相关jar包：
<properties>
<java.version>1.8</java.version>
<flowable.version>6.4.1</flowable.version>
<lombok.version>1.18.0</lombok.version>
<fastjson.version>1.2.9</fastjson.version>
</properties><dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-dependencies</artifactId> <type>pom</type> <scope>import</scope> </dependency> <!--Spring Cloud--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <!-- 配置文件处理器 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> </dependency> <!-- lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> <scope>provided</scope> </dependency> <!-- fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson.version}</version> </dependency> <!-- Druid --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.9</version> </dependency> <!-- 通用工具类 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- mysql 驱动 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-pool2</artifactId> <version>2.6.1</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.8.1</version> </dependency> <!-- Flowable spring-boot 版套餐 --> <dependency> <groupId>org.flowable</groupId> <artifactId>flowable-spring-boot-starter</artifactId> <version>${flowable.version}</version> </dependency> <!-- Flowable 内部日志采用 SLF4J --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.21</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.21</version> </dependency> <!-- app 依赖 包含 rest，logic，conf --> <dependency> <groupId>org.flowable</groupId> <artifactId>flowable-ui-modeler-rest</artifactId> <version>6.4.1</version> </dependency> <dependency> <groupId>org.flowable</groupId> <artifactId>flowable-ui-modeler-logic</artifactId> <version>6.4.1</version> </dependency> <dependency> <groupId>org.flowable</groupId> <artifactId>flowable-ui-modeler-conf</artifactId> <version>6.4.1</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>
然后需要将上一篇文章中说的在tomcat中启动的flowable modeler文件夹下的下面图片中的文件拷贝至springboot项目中resources文件夹下：
4.png
以下就是我的项目结构：
5.png
stencilset这个文件夹下是汉化文件。
下面是我们需要重写的三个文件：AppDispatcherServletConfiguration，ApplicationConfiguration，FlowableStencilSetResource这三个可以任意路径下
com.springcloud.flowable.conf.AppDispatcherServletConfiguration如下：
import org.flowable.ui.modeler.rest.app.EditorGroupsResource;import org.flowable.ui.modeler.rest.app.EditorUsersResource;import org.flowable.ui.modeler.rest.app.StencilSetResource;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.boot.autoconfigure.web.servlet.WebMvcRegistrations;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.FilterType;import org.springframework.scheduling.annotation.EnableAsync;import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;import org.springframework.web.servlet.i18n.SessionLocaleResolver;import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;//www.1b23.com@Configuration@ComponentScan(value = { "org.flowable.ui.modeler.rest.app",
},excludeFilters = {
@ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, value = EditorUsersResource.class),
@ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, value = EditorGroupsResource.class),
@ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, value = StencilSetResource.class),
})@EnableAsyncpublic class AppDispatcherServletConfiguration implements WebMvcRegistrations {
private static final Logger LOGGER = LoggerFactory.getLogger(AppDispatcherServletConfiguration.class);@Beanpublic SessionLocaleResolver localeResolver() {
return new SessionLocaleResolver();}@Beanpublic LocaleChangeInterceptor localeChangeInterceptor() {
LOGGER.debug("Configuring localeChangeInterceptor");
LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor();
localeChangeInterceptor.setParamName("language");
return localeChangeInterceptor;}@Overridepublic RequestMappingHandlerMapping getRequestMappingHandlerMapping() {
LOGGER.debug("Creating requestMappingHandlerMapping");
RequestMappingHandlerMapping requestMappingHandlerMapping = new RequestMappingHandlerMapping();
requestMappingHandlerMapping.setUseSuffixPatternMatch(false);
requestMappingHandlerMapping.setRemoveSemicolonContent(false);
Object[] interceptors = { localeChangeInterceptor() };
requestMappingHandlerMapping.setInterceptors(interceptors);
return requestMappingHandlerMapping;}}
com.springcloud.flowable.conf.ApplicationConfiguration如下：
import org.flowable.ui.common.service.idm.RemoteIdmService;
import org.flowable.ui.modeler.properties.FlowableModelerAppProperties;
import org.flowable.ui.modeler.servlet.ApiDispatcherServletConfiguration;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.FilterType;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;//www.1b23.com@Configuration@EnableConfigurationProperties(FlowableModelerAppProperties.class)@ComponentScan(basePackages = {// "org.flowable.ui.modeler.conf",
"org.flowable.ui.modeler.repository",
"org.flowable.ui.modeler.service",// "org.flowable.ui.modeler.security", //授权方面的都不需要// "org.flowable.ui.common.conf", // flowable 开发环境内置的数据库连接// "org.flowable.ui.common.filter", // IDM 方面的过滤器
"org.flowable.ui.common.service",
"org.flowable.ui.common.repository",
//// "org.flowable.ui.common.security",//授权方面的都不需要"org.flowable.ui.common.tenant" },excludeFilters = {// 移除 RemoteIdmService@ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, value = RemoteIdmService.class),})public class ApplicationConfiguration {@Beanpublic ServletRegistrationBean modelerApiServlet(ApplicationContext applicationContext) {
AnnotationConfigWebApplicationContext dispatcherServletConfiguration = new AnnotationConfigWebApplicationContext();
dispatcherServletConfiguration.setParent(applicationContext);
dispatcherServletConfiguration.register(ApiDispatcherServletConfiguration.class);
DispatcherServlet servlet = new DispatcherServlet(dispatcherServletConfiguration);
ServletRegistrationBean registrationBean = new ServletRegistrationBean(servlet, "/api/*");
registrationBean.setName("Flowable Modeler App API Servlet");
registrationBean.setLoadOnStartup(1);
registrationBean.setAsyncSupported(true);
return registrationBean;}}
com.springcloud.flowable.conf.FlowableStencilSetResource如下：
import com.fasterxml.jackson.databind.JsonNode;import com.fasterxml.jackson.databind.ObjectMapper;import org.flowable.ui.common.service.exception.InternalServerErrorException;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController;//www.1b23.com@RestController@RequestMapping("/app")public class FlowableStencilSetResource {private static final Logger LOGGER = LoggerFactory.getLogger(FlowableStencilSetResource.class);@Autowiredprotected ObjectMapper objectMapper;@RequestMapping(value = "/rest/stencil-sets/editor", method = RequestMethod.GET, produces = "application/json")public JsonNode getStencilSetForEditor() {try {
JsonNode stencilNode
objectMapper.readTree(this.getClass().getClassLoader().getResourceAsStream("stencilset/stencilse
t_bpmn.json"));
return stencilNode;
} catch (Exception e) {
LOGGER.error("Error reading bpmn stencil set json", e);
throw new InternalServerErrorException("Error reading bpmn stencil set json");
}
}
@RequestMapping(value = "/rest/stencil-sets/cmmneditor", method = RequestMethod.GET, produces = "application/json")
public JsonNode getCmmnStencilSetForEditor() {
try {
JsonNode stencilNode =
objectMapper.readTree(this.getClass().getClassLoader().getResourceAsStream("stencilset/stencilse
t_cmmn.json"));
return stencilNode;
} catch (Exception e) {
LOGGER.error("Error reading bpmn stencil set json", e);
throw new InternalServerErrorException("Error reading bpmn stencil set json");
}
}
}com.springcloud.flowable.controller.FlowableController：重写flowable modeler登陆的接口
7.png
import org.flowable.ui.common.model.UserRepresentation;import org.flowable.ui.common.security.DefaultPrivileges;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController;import java.util.ArrayList;import java.util.List;/**
* Flowable 相关接口
* www.1b23.com
*/@RestController@RequestMapping("/login")public class FlowableController {
/**
* 获取默认的管理员信息
* @return
*/
@RequestMapping(value = "/rest/account", method = RequestMethod.GET, produces =
"application/json")
public UserRepresentation getAccount() {
UserRepresentation userRepresentation = new UserRepresentation();
userRepresentation.setId("admin");
userRepresentation.setEmail("admin@flowable.org");
userRepresentation.setFullName("Administrator");// userRepresentation.setLastName("Administrator");
userRepresentation.setFirstName("Administrator");
List<String> privileges = new ArrayList<>();
privileges.add(DefaultPrivileges.ACCESS_MODELER);
privileges.add(DefaultPrivileges.ACCESS_IDM);
privileges.add(DefaultPrivileges.ACCESS_ADMIN);
privileges.add(DefaultPrivileges.ACCESS_TASK);
privileges.add(DefaultPrivileges.ACCESS_REST_API);
userRepresentation.setPrivileges(privileges);
return userRepresentation;
}}添加流程时会用到用户id，这里重构SecurityUtils.getCurrentUserObject 获取用户信息，这个文件路径必须和原路径一致：
org.flowable.ui.common.security.SecurityUtils
import org.flowable.idm.api.User;import org.flowable.ui.common.model.RemoteUser;import org.springframework.security.core.GrantedAuthority;import org.springframework.security.core.context.SecurityContext;import org.springframework.security.core.context.SecurityContextHolder;import java.util.ArrayList;import java.util.List;
/**
* Utility class for Spring Security.
* www.1b23.com */
public class SecurityUtils {
private static User assumeUser;
private SecurityUtils() {
}
/**
* Get the login of the current user.
*/
public static String getCurrentUserId() {
User user = getCurrentUserObject();
if (user != null) {
return user.getId();
}
return null;
}
/**
* @return the {@link User} object associated with the current logged in user.
*/
public static User getCurrentUserObject() {
if (assumeUser != null) {
return assumeUser;
}
RemoteUser user = new RemoteUser();
user.setId("admin");
user.setDisplayName("Administrator");
user.setFirstName("Administrator");
user.setLastName("Administrator");
user.setEmail("admin@flowable.com");
user.setPassword("123456");
List<String> pris = new ArrayList<>();
pris.add(DefaultPrivileges.ACCESS_MODELER);
pris.add(DefaultPrivileges.ACCESS_IDM);
pris.add(DefaultPrivileges.ACCESS_ADMIN);
pris.add(DefaultPrivileges.ACCESS_TASK);
pris.add(DefaultPrivileges.ACCESS_REST_API);
user.setPrivileges(pris);
return user;
}
public static FlowableAppUser getCurrentFlowableAppUser() {
FlowableAppUser user = null;
SecurityContext securityContext = SecurityContextHolder.getContext();
if (securityContext != null && securityContext.getAuthentication() != null) {
Object principal = securityContext.getAuthentication().getPrincipal();
if (principal instanceof FlowableAppUser) {
user = (FlowableAppUser) principal;
}
}
return user;
}
public static boolean currentUserHasCapability(String capability) {
FlowableAppUser user = getCurrentFlowableAppUser();
for (GrantedAuthority grantedAuthority : user.getAuthorities()) {
if (capability.equals(grantedAuthority.getAuthority())) {
return true;
}
}
return false;
}
public static void assumeUser(User user) {
assumeUser = user;
}
public static void clearAssumeUser() {
assumeUser = null;
}}
配置文件：application.yml：
server:port: 8087spring:datasource:
url: jdbc:mysql://127.0.0.1:3306/pyj?useUnicode=true&characterEncoding=utf8 username: root password: 123456
driverClassName: com.mysql.jdbc.Driver
resources:
mybatis:
mapper-locations: mapper/*/*.xml, classpath*:mapper/*.xml configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl启动类：SpringCloudApplication
import com.springcloud.flowable.conf.AppDispatcherServletConfiguration;import com.springcloud.flowable.conf.ApplicationConfiguration;import org.flowable.ui.modeler.conf.DatabaseConfiguration;import org.mybatis.spring.annotation.MapperScan;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Import;@Import(value={
// 引入修改的配置
ApplicationConfiguration.class,
AppDispatcherServletConfiguration.class,
// 引入 DatabaseConfiguration 表更新转换
DatabaseConfiguration.class})// Eureka 客户端@ComponentScan(basePackages = {"com.springcloud.*"})@MapperScan("com.springcloud.*.dao")// 移除 Security 自动配置@SpringBootApplication(exclude={SecurityAutoConfiguration.class})public class SpringcloudApplication {
public static void main(String[] args) {
SpringApplication.run(SpringcloudApplication.class, args);
}}这个配置很重要 @SpringBootApplication(exclude={SecurityAutoConfiguration.class})：排除springsecurity认证
接下来启动项目：输入：localhost:8087
8.png
最后重写获取用户，用户组接口
import org.apache.commons.lang3.StringUtils;import org.flowable.engine.ManagementService;import org.flowable.idm.api.Group;import org.flowable.idm.api.IdmIdentityService;import org.flowable.idm.api.User;import org.flowable.ui.common.model.GroupRepresentation;import org.flowable.ui.common.model.ResultListDataRepresentation;import org.flowable.ui.common.model.UserRepresentation;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RestController;import java.util.ArrayList;import java.util.List;//www.1b23.com@RestController@RequestMapping("app")public class UserAndGroupResourceController {
@Autowired
protected ManagementService managementService;
@Autowiredprotected IdmIdentityService idmIdentityService;@RequestMapping(value = "/rest/editor-groups", method = RequestMethod.GET)public ResultListDataRepresentation getGroups(@RequestParam(required = false, value = "filter") String filter) {
if (StringUtils.isNotBlank(filter)) {
filter = filter.trim();
String sql = "select * from ACT_ID_GROUP where NAME_ like #{name}";
filter = "%" + filter + "%";
List<Group> groups = idmIdentityService.createNativeGroupQuery().sql(sql).parameter("name", filter).listPage(0, 10);
List<GroupRepresentation> result = new ArrayList<>();
for (Group group : groups) {
result.add(new GroupRepresentation(group));
}
return new ResultListDataRepresentation(result);
}
return null;
}
@RequestMapping(value = "/rest/editor-users", method = RequestMethod.GET)
public ResultListDataRepresentation getUsers(@RequestParam(value = "filter", required = false) String filter) {
if (StringUtils.isNotBlank(filter)) {
filter = filter.trim();
String sql = "select * from ACT_ID_USER where ID_ like #{id} or LAST_ like #{name}";
filter = "%"+filter+"%";
List<User> matchingUsers =
idmIdentityService.createNativeUserQuery().sql(sql).parameter("id",filter).parameter("name",filter).listPage(0, 10);List<UserRepresentation> userRepresentations = new ArrayList<>(matchingUsers.size());
for (User user : matchingUsers) {
userRepresentations.add(new UserRepresentation(user));
}
return new ResultListDataRepresentation(userRepresentations);
}
return null;
}}
将flowable启动时自建的表:ACT_ID_MEMBERSHIP,ACT _ID_GROUP, ACT_ID_USER 删除
自建视图查询自己系统中的用户/权限/角色表：
-- 用户表CREATE VIEW ACT_ID_USER AS SELECT SU.USER_ID AS ID_,1 AS REV_,SU.REAL_NM AS FIRST_,concat('',SU.USER_ID) AS LAST_ ,'000000' AS PWD_ , SUL.LOGIN_EMAIL AS EMAIL_, SU.WEB_FACE AS PICTURE_ID_FROM SYS_USER AS SU INNER JOIN sys_manager.SYS_USER_LOGIN AS SULON SU.USER_ID = SUL.USER_ID;-- 分组表CREATE VIEW ACT_ID_GROUP AS SELECT SR.ROLE_ID AS ID_ , 1 AS REV_, SR.ROLE_NM AS NAME_,CASE WHEN SR.IS_ADMIN=1 then 'admin' else 'ordinary' end as TYPE_ FROM SYS_ROLE AS SR;-- 关系表CREATE VIEW ACT_ID_MEMBERSHIP AS SELECT SUR.USER_ID AS USER_ID_,SUR.ROLE_ID AS GROUP_ID_ FROM SYS_USER_ROLE AS SUR;来源：oschina
链接：https://my.oschina.net/u/4352984/blog/4308742