Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.flowable.ui.common.service.idm.RemoteIdmService]: Factory method 'remoteIdmService' threw exception; nested exception is java.lang.IllegalArgumentException: `flowable.common.app.idm-url` must be set
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653)
	... 25 common frames omitted
Caused by: java.lang.IllegalArgumentException: `flowable.common.app.idm-url` must be set
	at org.springframework.util.Assert.hasText(Assert.java:289)
	at org.flowable.ui.common.properties.FlowableCommonAppProperties.determineIdmAppUrl(FlowableCommonAppProperties.java:150)
	at org.flowable.ui.common.service.idm.RemoteIdmServiceImpl.<init>(RemoteIdmServiceImpl.java:60)
	at org.flowable.ui.common.security.FlowableUiSecurityAutoConfiguration$RemoteIdmConfiguration.remoteIdmService(FlowableUiSecurityAutoConfiguration.java:120)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
	... 26 common frames omitted

报错提示：`flowable.common.app.idm-url` must be set

    @Autowired
    protected ObjectMapper objectMapper;

    protected String url;
    protected String adminUser;
    protected String adminPassword;

    public RemoteIdmServiceImpl(FlowableCommonAppProperties properties) {
        url = properties.determineIdmAppUrl();
        adminUser = properties.getIdmAdmin().getUser();
        Assert.hasText(adminUser, "Admin user must not be empty");
        adminPassword = properties.getIdmAdmin().getPassword();
        Assert.hasText(adminPassword, "Admin user password should not be empty");
    }

这个是由于flowable调用自己的用户权限导致的，如果把flowable集成自己的框架里面，就不需要用它自带的用户体现和权限了

出现这个问题，需要重写调用这个权限的最开始的那个类：FlowableUiSecurityAutoConfiguration

在自己项目，相同包名路径下，建个相同的类

package org.flowable.ui.common.security;

import org.flowable.spring.boot.FlowableSecurityAutoConfiguration;
import org.flowable.spring.boot.idm.IdmEngineServicesAutoConfiguration;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.security.oauth2.client.servlet.OAuth2ClientAutoConfiguration;
import org.springframework.context.annotation.Configuration;

/**
 * 说明：重构FlowableUiSecurity自动配置
 * From：www.fhadmin.org
 */
@Configuration(proxyBeanMethods = false)
@AutoConfigureAfter({
        IdmEngineServicesAutoConfiguration.class,
})
@AutoConfigureBefore({
        FlowableSecurityAutoConfiguration.class,
        OAuth2ClientAutoConfiguration.class,
})
public class FlowableUiSecurityAutoConfiguration {}

工作流模块-------------------------------

1.模型管理 ：web在线流程设计器、导入导出xml、复制流程、部署流程

2.流程管理 ：导入导出流程资源文件、查看流程图、根据流程实例反射出流程模型、激活挂起

3.运行中流程：查看流程信息、当前任务节点、当前流程图、作废暂停流程、指派待办人、自由跳转

4.历史的流程：查看流程信息、流程用时、流程状态、查看任务发起人信息

5.待办任务 ：查看本人个人任务以及本角色下的任务、办理、驳回、作废、指派一下代理人

6.已办任务 ：查看自己办理过的任务以及流程信息、流程图、流程状态(作废 驳回 正常完成)

办理任务时候可以选择用户进行抄送，就是给被抄送人发送站内信通知当前审批意见以及备注信息

注：当办理完当前任务时，下一任务待办人会即时通讯收到新任务消息提醒，当作废和完结任务时,

任务发起人会收到站内信消息通知

来源：https://www.cnblogs.com/sjingser1/p/14835517.html