Springboot 整合 Flowable：使用 flowable-UI 绘制流程图

在Spring Boot中整合Flowable以使用Flowable UI绘制流程图，你需要按照以下步骤操作：

1. 添加Flowable UI依赖到你的pom.xml文件中：

<dependencies>
    <!-- 其他依赖 ... -->
 
    <!-- Flowable UI 依赖 -->
    <dependency>
        <groupId>org.flowable</groupId>
        <artifactId>flowable-ui-common</artifactId>
        <version>${flowable.version}</version>
    </dependency>
    <dependency>
        <groupId>org.flowable</groupId>
        <artifactId>flowable-ui-modeler</artifactId>
        <version>${flowable.version}</version>
    </dependency>
    <dependency>
        <groupId>org.flowable</groupId>
        <artifactId>flowable-ui-idm-spring</artifactId>
        <version>${flowable.version}</version>
    </dependency>
    <dependency>
        <groupId>org.flowable</groupId>
        <artifactId>flowable-ui-admin</artifactId>
        <version>${flowable.version}</version>
    </dependency>
</dependencies>

2. 配置application.properties或application.yml以连接Flowable引擎：

# 数据源配置
spring.datasource.url=jdbc:mysql://localhost:3306/flowable_ui?useSSL=false
spring.datasource.username=root
spring.datasource.password=example
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 
# 引擎服务配置
flowable.ui.modeler.enabled=true
flowable.ui.modeler.process-engine-name=default

3. 启动类添加@EnableProcessApplication注解：

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.flowable.spring.boot.FlowableProcessEngineAutoConfiguration;
import org.flowable.spring.boot.FlowableUIApplication;
 
@SpringBootApplication(exclude = { FlowableProcessEngineAutoConfiguration.class })
@EnableProcessApplication
public class FlowableUiApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(FlowableUiApplication.class, args);
    }
}

4. 配置安全控制，允许访问Flowable UI：

import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 
@Configuration
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
 
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .csrf().disable()
            .authorizeRequests()
            .anyRequest().perm