springboot2.5.2與 flowable6.6.0整合流程引擎應用分析

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.2</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <flowable.version>6.6.0</flowable.version>
    </properties>

         <!--flowable工作流依賴-->
        <dependency>
            <groupId>org.flowable</groupId>
            <artifactId>flowable-spring-boot-starter</artifactId>
            <version>${flowable.version}</version>
        </dependency>
         <!-- https://mvnrepository.com/artifact/org.flowable/flowable-json-converter -->
        <dependency>
            <groupId>org.flowable</groupId>
            <artifactId>flowable-json-converter</artifactId>
            <version>${flowable.version}</version>
        </dependency>
        <!-- app 依賴 包含 rest，logic，conf -->
        <dependency>
            <groupId>org.flowable</groupId>
            <artifactId>flowable-ui-modeler-rest</artifactId>
            <version>${flowable.version}</version>
        </dependency>
        <dependency>
            <groupId>org.flowable</groupId>
            <artifactId>flowable-ui-modeler-logic</artifactId>
            <version>${flowable.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.logging.log4j</groupId>
                    <artifactId>log4j-slf4j-impl</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.flowable</groupId>
            <artifactId>flowable-ui-modeler-conf</artifactId>
            <version>${flowable.version}</version>
        </dependency>

package org.fh.config;

import org.flowable.spring.SpringProcessEngineConfiguration;
import org.flowable.spring.boot.EngineConfigurationConfigurer;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Controller;

/**
 * 說明：Flowable配置
 * 作者：FH Admin
 * from：fhadmin.cn
 */
@Controller
@Configuration
public class FlowableConfig implements EngineConfigurationConfigurer<SpringProcessEngineConfiguration> {
    
    @Override
    public void configure(SpringProcessEngineConfiguration engineConfiguration) {
        engineConfiguration.setActivityFontName("宋體");
        engineConfiguration.setLabelFontName("宋體");
        engineConfiguration.setAnnotationFontName("宋體");
    }
    
}
3.重寫 SecurityUtils 重構流程編輯器獲取用戶信息

package org.flowable.ui.common.security;

import org.fh.util.Jurisdiction;
import org.flowable.common.engine.api.FlowableIllegalStateException;
import org.flowable.idm.api.User;
import org.flowable.ui.common.model.RemoteUser;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;

import java.util.ArrayList;
import java.util.List;

/**
 * 說明：重構流程編輯器獲取用戶信息
 * 作者：FH Admin
 * from：fhadmin.cn
 */
public class SecurityUtils {

    private static User assumeUser;
    
    private static SecurityScopeProvider securityScopeProvider = new FlowableSecurityScopeProvider();

    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(Jurisdiction.getUsername());
        user.setDisplayName(Jurisdiction.getName());
        user.setFirstName(Jurisdiction.getName());
        user.setLastName(Jurisdiction.getName());
        user.setEmail("[email protected]");
        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 void setSecurityScopeProvider(SecurityScopeProvider securityScopeProvider) {
        SecurityUtils.securityScopeProvider = securityScopeProvider;
    }

    public static SecurityScope getCurrentSecurityScope() {
        SecurityContext securityContext = SecurityContextHolder.getContext();
        if (securityContext != null && securityContext.getAuthentication() != null) {
            return getSecurityScope(securityContext.getAuthentication());
        }
        return null;
    }

    public static SecurityScope getSecurityScope(Authentication authentication) {
        return securityScopeProvider.getSecurityScope(authentication);
    }

    public static SecurityScope getAuthenticatedSecurityScope() {
        SecurityScope currentSecurityScope = getCurrentSecurityScope();
        if (currentSecurityScope != null) {
            return currentSecurityScope;
        }
        throw new FlowableIllegalStateException("User is not authenticated");
    }

    public static void assumeUser(User user) {
        assumeUser = user;
    }

    public static void clearAssumeUser() {
        assumeUser = null;
    }
}