前言
首先，感谢大家对上一篇文章[业务可视化-让你的流程图"Run"起来(3.分支选择&跨语言分布式运行节点)]的支持。
下面我以实际业务场景为例，来介绍一下ladybugflow的使用方法。
酒店预定场景（传统写法）
对于下面的酒店预定流程
流程1：
流程2
[流程1]的传统写法1：
定义流程间共享变量; 开始处理(); 查询客户信息处理(); 查询酒店信息处理(); 下单处理(); 下单成功处理();假设每个流程用3秒钟，整个流程执行完需要3*5=15秒。
于是衍生出了写法2：
定义流程间共享变量; 开始处理(); 启动 查询客户信息线程处理 A; 启动 查询酒店信息线程处理 B; 等待A,B结束; 下单处理(); 下单成功处理();节省了时间，但各种多线程的实现方式使程序变得复杂，
而且上述写法都把流程图与业务逻辑进行了绑定，
也就是流程图中添加，删除节点后，相应的逻辑代码也要修改，测试范围往往是整个流程图的业务逻辑都要进行测试。
酒店预定场景（新写法）
针对上面的问题，我在设计ladybugflow的时候，把流程图和业务逻辑进行了分离，
每个业务逻辑对应一个方法，与流程图中的节点进行绑定。
这样修改流程图就不用修改业务逻辑了。
而且流程图可以通过工具拖拽方式生成，还可以在图上查看运行结果。
下面介绍一下ladybugflow中的开发过程
1. 导入依赖
Maven
<!-- https://mvnrepository.com/artifact/io.github.nobuglady/ladybugflow --> <dependency> <groupId>io.github.nobuglady</groupId> <artifactId>ladybugflow</artifactId> <version>0.0.6</version> </dependency>Gradle
// https://mvnrepository.com/artifact/io.github.nobuglady/ladybugflow implementation 'io.github.nobuglady:ladybugflow:0.0.6'2. 画流程图，并且生成Json文件
首先把这个文件下载到本地，用浏览器打开
https://github.com/nobuglady/ladybugflow/blob/main/html/network.html
然后点击页面上的[edit]按钮可以画流程图，
画完流程图后，点击[update json]按钮，可以生成流程图对应的json文件。
3. 写业务方法
流程图的每个节点对应下面的一个方法，用@Node注解来关联流程图。
可以用类变量进行参数传递和表示结果，比如下单成功后，设置类变量为"success"。
注：建议用节点ID进行关联，本文为了看起来方便，选择了中文的节点名称进行关联
Flow1.java(注意文件编码为UTF-8)
/** * * @author NoBugLady * */ public class Flow1 extends FlowRunner { private String result; public String getResult() { return result; } @Node(label = "start") public void processStart() throws InterruptedException { System.out.println("启动开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("启动结束"); } @Node(label = "查询用户信息") public void processSearchUser() throws InterruptedException { System.out.println("查询用户信息开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("查询用户信息结束"); } @Node(label = "查询酒店信息") public void processSearchHotel() throws InterruptedException { System.out.println("查询酒店信息开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("查询酒店信息结束"); } @Node(label = "下单") public void processOrder() throws InterruptedException { System.out.println("下单开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("下单结束"); } @Node(label = "下单成功") public void processSuccess() throws InterruptedException { System.out.println("下单成功开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("下单成功结束"); result = "success"; } }4. 将流程图的Json文件放入工程
Flow1.json(注意文件编码为UTF-8)
{ "flowId": "your flow id", "nodes": [ { "id": "1", "label": "start" }, { "id": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "label": "查询用户信息", "readyCheck": 0 }, { "id": "1a90a997-4390-470a-ae7c-626a725438d2", "label": "查询酒店信息", "readyCheck": 0 }, { "id": "52289e99-363d-4453-8077-ca8bdc6d35bf", "label": "下单", "readyCheck": 0 }, { "id": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2", "label": "下单成功", "readyCheck": 0 } ], "edges": [ { "id": "1", "from": "1", "to": "2", "arrows": "to" }, { "id": "b3ad7ab3-8fb6-4527-8cae-6845e03da3e4", "from": "1", "to": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "arrows": "to" }, { "id": "001375c7-19e7-436b-bbcd-68e36c8f23b7", "from": "1", "to": "1a90a997-4390-470a-ae7c-626a725438d2", "arrows": "to" }, { "id": "dd830043-c7a7-4c71-b91c-10c007b7b19c", "from": "1a90a997-4390-470a-ae7c-626a725438d2", "to": "52289e99-363d-4453-8077-ca8bdc6d35bf", "arrows": "to" }, { "id": "21c2c69d-0050-4eca-8283-5a2bcbdc6c37", "from": "52289e99-363d-4453-8077-ca8bdc6d35bf", "to": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2", "arrows": "to" }, { "id": "19f2f329-8163-4dc6-a353-800df79d18a6", "from": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "to": "52289e99-363d-4453-8077-ca8bdc6d35bf", "arrows": "to" } ] }项目结构如下图所示
Flow1.java和Flow1.json需要放到同一个包下。
5. 启动流程
App1.java(注意文件编码为UTF-8)
/** * * @author NoBugLady * */ public class App1 { public static void main(String[] args) { Flow1 testFlow = new Flow1(); testFlow.startFlow(true); System.out.println(testFlow.getResult()); // 不建议每次都调用shutdown,可以在整个App关闭的时候调用一次shutdown FlowStarter.shutdown(); } }6. 查看运行结果
[I]2022/07/27 21:23:12.172 main:ladybugflow.properties in root path not found, use default configuration [I]2022/07/27 21:23:12.177 main:NodePool started. [I]2022/07/27 21:23:12.178 main:Ready queue consumer thread started. [I]2022/07/27 21:23:12.180 main:Complete queue consumer thread started. [I]2022/07/27 21:23:12.993 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] main:json: {"flowId":"your flow id","nodes":[{"id":"1","label":"start","readyCheck":0},{"id":"a1a38c2e-0e05-4c68-bd49-f12aea070876","label":"查询用户信息","readyCheck":0},{"id":"1a90a997-4390-470a-ae7c-626a725438d2","label":"查询酒店信息","readyCheck":0},{"id":"52289e99-363d-4453-8077-ca8bdc6d35bf","label":"下单","readyCheck":0},{"id":"16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","label":"下单成功","readyCheck":0}],"edges":[{"id":"1","from":"1","to":"2","condition":null,"arrows":"to"},{"id":"b3ad7ab3-8fb6-4527-8cae-6845e03da3e4","from":"1","to":"a1a38c2e-0e05-4c68-bd49-f12aea070876","condition":null,"arrows":"to"},{"id":"001375c7-19e7-436b-bbcd-68e36c8f23b7","from":"1","to":"1a90a997-4390-470a-ae7c-626a725438d2","condition":null,"arrows":"to"},{"id":"dd830043-c7a7-4c71-b91c-10c007b7b19c","from":"1a90a997-4390-470a-ae7c-626a725438d2","to":"52289e99-363d-4453-8077-ca8bdc6d35bf","condition":null,"arrows":"to"},{"id":"21c2c69d-0050-4eca-8283-5a2bcbdc6c37","from":"52289e99-363d-4453-8077-ca8bdc6d35bf","to":"16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","condition":null,"arrows":"to"},{"id":"19f2f329-8163-4dc6-a353-800df79d18a6","from":"a1a38c2e-0e05-4c68-bd49-f12aea070876","to":"52289e99-363d-4453-8077-ca8bdc6d35bf","condition":null,"arrows":"to"}]} [I]2022/07/27 21:23:12.996 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-1:execute node id:1 [I]2022/07/27 21:23:12.996 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-1:execute node name:start 启动开始 （模拟业务等待3秒） 启动结束 [I]2022/07/27 21:23:16.003 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-1:execute node id:a1a38c2e-0e05-4c68-bd49-f12aea070876 [I]2022/07/27 21:23:16.003 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-1:execute node name:查询用户信息 [I]2022/07/27 21:23:16.003 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-2:execute node id:1a90a997-4390-470a-ae7c-626a725438d2 查询用户信息开始 （模拟业务等待3秒） [I]2022/07/27 21:23:16.004 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-2:execute node name:查询酒店信息 查询酒店信息开始 （模拟业务等待3秒） 查询酒店信息结束 查询用户信息结束 [I]2022/07/27 21:23:19.008 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-1:execute node id:52289e99-363d-4453-8077-ca8bdc6d35bf [I]2022/07/27 21:23:19.008 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-1:execute node name:下单 下单开始 （模拟业务等待3秒） 下单结束 [I]2022/07/27 21:23:22.014 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-1:execute node id:16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2 [I]2022/07/27 21:23:22.014 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] pool-1-thread-1:execute node name:下单成功 下单成功开始 （模拟业务等待3秒） 下单成功结束 [I]2022/07/27 21:23:25.025 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] Thread-1:Complete success. [I]2022/07/27 21:23:25.027 [your flow id][38f3567d-77fb-4629-bf7e-68b27633ed68] Thread-1:json: {"nodes":[{"id": "1","label": "start" ,"color": "#36AE7C"},{"id": "a1a38c2e-0e05-4c68-bd49-f12aea070876","label": "查询用户信息" ,"color": "#36AE7C"},{"id": "1a90a997-4390-470a-ae7c-626a725438d2","label": "查询酒店信息" ,"color": "#36AE7C"},{"id": "52289e99-363d-4453-8077-ca8bdc6d35bf","label": "下单" ,"color": "#36AE7C"},{"id": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","label": "下单成功" ,"color": "#36AE7C"}],"edges":[{"id": "1","from": "1","to": "2","arrows": "to"},{"id": "b3ad7ab3-8fb6-4527-8cae-6845e03da3e4","from": "1","to": "a1a38c2e-0e05-4c68-bd49-f12aea070876","arrows": "to"},{"id": "001375c7-19e7-436b-bbcd-68e36c8f23b7","from": "1","to": "1a90a997-4390-470a-ae7c-626a725438d2","arrows": "to"},{"id": "dd830043-c7a7-4c71-b91c-10c007b7b19c","from": "1a90a997-4390-470a-ae7c-626a725438d2","to": "52289e99-363d-4453-8077-ca8bdc6d35bf","arrows": "to"},{"id": "21c2c69d-0050-4eca-8283-5a2bcbdc6c37","from": "52289e99-363d-4453-8077-ca8bdc6d35bf","to": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","arrows": "to"},{"id": "19f2f329-8163-4dc6-a353-800df79d18a6","from": "a1a38c2e-0e05-4c68-bd49-f12aea070876","to": "52289e99-363d-4453-8077-ca8bdc6d35bf","arrows": "to"}]} success [I]2022/07/27 21:23:25.028 main:Ready queue thread stoped. [I]2022/07/27 21:23:25.028 main:Ready queue thread stoped. [I]2022/07/27 21:23:25.028 main:NodePool stoped.将流程运行结束的json字符串拷贝到下面，然后点击[show network]按钮，可以显示出流程执行后的状态
绿色：执行成功，红色：执行失败，白色：未执行
带分支处理的酒店预定流程
ladybugflow提供了对流程图的分支处理功能。
可以根据节点的返回结果，执行不同的流程。
比如，上例中，增加【检查订单】节点，如下
检查订单成功，则走酒店预定流程，否则，走失败流程。
针对以上流程，我们对检查订单的两个边设置返回值，如下：
生成的Json文件如下
Flow2.json(注意文件编码为UTF-8)
{ "flowId": "your flow id", "nodes": [ { "id": "1", "label": "start" }, { "id": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "label": "查询用户信息", "readyCheck": 0 }, { "id": "1a90a997-4390-470a-ae7c-626a725438d2", "label": "查询酒店信息", "readyCheck": 0 }, { "id": "52289e99-363d-4453-8077-ca8bdc6d35bf", "label": "下单", "readyCheck": 0 }, { "id": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2", "label": "下单成功", "readyCheck": 0 }, { "id": "5a1068c1-e365-4a51-b617-8cc093ce5e3d", "label": "检查订单", "readyCheck": 0 }, { "id": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10", "label": "可以预定", "readyCheck": 0 }, { "id": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88", "label": "不可预定", "readyCheck": 0 }, { "id": "8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e", "label": "失败处理", "readyCheck": 0 } ], "edges": [ { "id": "1", "from": "1", "to": "2", "arrows": "to" }, { "id": "b3ad7ab3-8fb6-4527-8cae-6845e03da3e4", "from": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10", "to": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "arrows": "to" }, { "id": "001375c7-19e7-436b-bbcd-68e36c8f23b7", "from": "5a1068c1-e365-4a51-b617-8cc093ce5e3d", "to": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10", "condition": "1", "arrows": "to" }, { "id": "dd830043-c7a7-4c71-b91c-10c007b7b19c", "from": "1a90a997-4390-470a-ae7c-626a725438d2", "to": "52289e99-363d-4453-8077-ca8bdc6d35bf", "arrows": "to" }, { "id": "21c2c69d-0050-4eca-8283-5a2bcbdc6c37", "from": "52289e99-363d-4453-8077-ca8bdc6d35bf", "to": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2", "arrows": "to" }, { "id": "19f2f329-8163-4dc6-a353-800df79d18a6", "from": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "to": "52289e99-363d-4453-8077-ca8bdc6d35bf", "arrows": "to" }, { "id": "822e5c76-ce59-4962-b5e3-a3dfd905fa05", "from": "1", "to": "5a1068c1-e365-4a51-b617-8cc093ce5e3d", "arrows": "to" }, { "id": "36d6e697-b835-4374-9fa7-c1cd24b100e9", "from": "5a1068c1-e365-4a51-b617-8cc093ce5e3d", "to": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88", "condition": "0", "arrows": "to" }, { "id": "d4a03a18-2a24-4bec-9717-a82c8a4a764b", "from": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10", "to": "1a90a997-4390-470a-ae7c-626a725438d2", "arrows": "to" }, { "id": "673051d5-27f5-4578-8fc2-4f5e7352d5d2", "from": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88", "to": "8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e", "arrows": "to" } ] }
业务方法中增加酒店检查节点，这里返回1，走检查成功的流程。
Flow2.java(注意文件编码为UTF-8)
/** * * @author NoBugLady * */ public class Flow2 extends FlowRunner { private String result; public String getResult() { return result; } @Node(label = "start") public void processStart() throws InterruptedException { System.out.println("启动开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("启动结束"); } @Node(label = "检查订单") public int processCheckOrder() throws InterruptedException { System.out.println("检查订单开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("检查订单结束"); return 1; } @Node(label = "可以预定") public void processCheckOrderOK() throws InterruptedException { System.out.println("可以预定开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("可以预定结束"); } @Node(label = "不可预订") public void processCheckOrderNG() throws InterruptedException { System.out.println("不可预订开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("不可预订结束"); } @Node(label = "查询用户信息") public void processSearchUser() throws InterruptedException { System.out.println("查询用户信息开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("查询用户信息结束"); } @Node(label = "查询酒店信息") public void processSearchHotel() throws InterruptedException { System.out.println("查询酒店信息开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("查询酒店信息结束"); } @Node(label = "下单") public void processOrder() throws InterruptedException { System.out.println("下单开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("下单结束"); } @Node(label = "下单成功") public void processSuccess() throws InterruptedException { System.out.println("下单成功开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("下单成功结束"); result = "success"; } @Node(label = "失败处理") public void processError() throws InterruptedException { System.out.println("失败处理开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("失败处理结束"); result = "error"; } }启动流程
App2.java(注意文件编码为UTF-8)
/** * * @author NoBugLady * */ public class App2 { public static void main(String[] args) { Flow2 testFlow = new Flow2(); testFlow.startFlow(true); System.out.println(testFlow.getResult()); // 不建议每次都调用shutdown,可以在整个App关闭的时候调用一次shutdown FlowStarter.shutdown(); } }查看运行结果
[I]2022/07/27 21:29:56.046 main:ladybugflow.properties in root path not found, use default configuration [I]2022/07/27 21:29:56.052 main:NodePool started. [I]2022/07/27 21:29:56.052 main:Ready queue consumer thread started. [I]2022/07/27 21:29:56.054 main:Complete queue consumer thread started. [I]2022/07/27 21:29:56.927 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] main:json: {"flowId":"your flow id","nodes":[{"id":"1","label":"start","readyCheck":0},{"id":"a1a38c2e-0e05-4c68-bd49-f12aea070876","label":"查询用户信息","readyCheck":0},{"id":"1a90a997-4390-470a-ae7c-626a725438d2","label":"查询酒店信息","readyCheck":0},{"id":"52289e99-363d-4453-8077-ca8bdc6d35bf","label":"下单","readyCheck":0},{"id":"16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","label":"下单成功","readyCheck":0},{"id":"5a1068c1-e365-4a51-b617-8cc093ce5e3d","label":"检查订单","readyCheck":0},{"id":"0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","label":"可以预定","readyCheck":0},{"id":"7e841bf6-b422-4c2c-b4ec-d2352e22cc88","label":"不可预定","readyCheck":0},{"id":"8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e","label":"失败处理","readyCheck":0}],"edges":[{"id":"1","from":"1","to":"2","condition":null,"arrows":"to"},{"id":"b3ad7ab3-8fb6-4527-8cae-6845e03da3e4","from":"0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","to":"a1a38c2e-0e05-4c68-bd49-f12aea070876","condition":null,"arrows":"to"},{"id":"001375c7-19e7-436b-bbcd-68e36c8f23b7","from":"5a1068c1-e365-4a51-b617-8cc093ce5e3d","to":"0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","condition":"1","arrows":"to"},{"id":"dd830043-c7a7-4c71-b91c-10c007b7b19c","from":"1a90a997-4390-470a-ae7c-626a725438d2","to":"52289e99-363d-4453-8077-ca8bdc6d35bf","condition":null,"arrows":"to"},{"id":"21c2c69d-0050-4eca-8283-5a2bcbdc6c37","from":"52289e99-363d-4453-8077-ca8bdc6d35bf","to":"16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","condition":null,"arrows":"to"},{"id":"19f2f329-8163-4dc6-a353-800df79d18a6","from":"a1a38c2e-0e05-4c68-bd49-f12aea070876","to":"52289e99-363d-4453-8077-ca8bdc6d35bf","condition":null,"arrows":"to"},{"id":"822e5c76-ce59-4962-b5e3-a3dfd905fa05","from":"1","to":"5a1068c1-e365-4a51-b617-8cc093ce5e3d","condition":null,"arrows":"to"},{"id":"36d6e697-b835-4374-9fa7-c1cd24b100e9","from":"5a1068c1-e365-4a51-b617-8cc093ce5e3d","to":"7e841bf6-b422-4c2c-b4ec-d2352e22cc88","condition":"0","arrows":"to"},{"id":"d4a03a18-2a24-4bec-9717-a82c8a4a764b","from":"0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","to":"1a90a997-4390-470a-ae7c-626a725438d2","condition":null,"arrows":"to"},{"id":"673051d5-27f5-4578-8fc2-4f5e7352d5d2","from":"7e841bf6-b422-4c2c-b4ec-d2352e22cc88","to":"8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e","condition":null,"arrows":"to"}]} [I]2022/07/27 21:29:56.931 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node id:1 [I]2022/07/27 21:29:56.931 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node name:start 启动开始 （模拟业务等待3秒） 启动结束 [I]2022/07/27 21:29:59.939 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node id:5a1068c1-e365-4a51-b617-8cc093ce5e3d [I]2022/07/27 21:29:59.939 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node name:检查订单 检查订单开始 （模拟业务等待3秒） 检查订单结束 [I]2022/07/27 21:30:02.942 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node id:0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10 [I]2022/07/27 21:30:02.942 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node name:可以预定 可以预定开始 （模拟业务等待3秒） 可以预定结束 [I]2022/07/27 21:30:05.950 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node id:a1a38c2e-0e05-4c68-bd49-f12aea070876 [I]2022/07/27 21:30:05.950 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node name:查询用户信息 查询用户信息开始 （模拟业务等待3秒） [I]2022/07/27 21:30:05.951 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-2:execute node id:1a90a997-4390-470a-ae7c-626a725438d2 [I]2022/07/27 21:30:05.951 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-2:execute node name:查询酒店信息 查询酒店信息开始 （模拟业务等待3秒） 查询酒店信息结束 查询用户信息结束 [I]2022/07/27 21:30:08.956 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node id:52289e99-363d-4453-8077-ca8bdc6d35bf [I]2022/07/27 21:30:08.956 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node name:下单 下单开始 （模拟业务等待3秒） 下单结束 [I]2022/07/27 21:30:11.960 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node id:16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2 [I]2022/07/27 21:30:11.960 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] pool-1-thread-1:execute node name:下单成功 下单成功开始 （模拟业务等待3秒） 下单成功结束 [I]2022/07/27 21:30:14.975 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] Thread-1:Complete success. [I]2022/07/27 21:30:14.977 [your flow id][73a425a8-2f13-42bc-9358-111d10378204] Thread-1:json: {"nodes":[{"id": "1","label": "start" ,"color": "#36AE7C"},{"id": "a1a38c2e-0e05-4c68-bd49-f12aea070876","label": "查询用户信息" ,"color": "#36AE7C"},{"id": "1a90a997-4390-470a-ae7c-626a725438d2","label": "查询酒店信息" ,"color": "#36AE7C"},{"id": "52289e99-363d-4453-8077-ca8bdc6d35bf","label": "下单" ,"color": "#36AE7C"},{"id": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","label": "下单成功" ,"color": "#36AE7C"},{"id": "5a1068c1-e365-4a51-b617-8cc093ce5e3d","label": "检查订单" ,"color": "#36AE7C"},{"id": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","label": "可以预定" ,"color": "#36AE7C"},{"id": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88","label": "不可预定" ,"color": "#E8F9FD"},{"id": "8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e","label": "失败处理" ,"color": "#E8F9FD"}],"edges":[{"id": "1","from": "1","to": "2","arrows": "to"},{"id": "b3ad7ab3-8fb6-4527-8cae-6845e03da3e4","from": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","to": "a1a38c2e-0e05-4c68-bd49-f12aea070876","arrows": "to"},{"id": "001375c7-19e7-436b-bbcd-68e36c8f23b7","from": "5a1068c1-e365-4a51-b617-8cc093ce5e3d","to": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","arrows": "to"},{"id": "dd830043-c7a7-4c71-b91c-10c007b7b19c","from": "1a90a997-4390-470a-ae7c-626a725438d2","to": "52289e99-363d-4453-8077-ca8bdc6d35bf","arrows": "to"},{"id": "21c2c69d-0050-4eca-8283-5a2bcbdc6c37","from": "52289e99-363d-4453-8077-ca8bdc6d35bf","to": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","arrows": "to"},{"id": "19f2f329-8163-4dc6-a353-800df79d18a6","from": "a1a38c2e-0e05-4c68-bd49-f12aea070876","to": "52289e99-363d-4453-8077-ca8bdc6d35bf","arrows": "to"},{"id": "822e5c76-ce59-4962-b5e3-a3dfd905fa05","from": "1","to": "5a1068c1-e365-4a51-b617-8cc093ce5e3d","arrows": "to"},{"id": "36d6e697-b835-4374-9fa7-c1cd24b100e9","from": "5a1068c1-e365-4a51-b617-8cc093ce5e3d","to": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88","arrows": "to"},{"id": "d4a03a18-2a24-4bec-9717-a82c8a4a764b","from": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","to": "1a90a997-4390-470a-ae7c-626a725438d2","arrows": "to"},{"id": "673051d5-27f5-4578-8fc2-4f5e7352d5d2","from": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88","to": "8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e","arrows": "to"}]} success [I]2022/07/27 21:30:14.977 main:Ready queue thread stoped. [I]2022/07/27 21:30:14.977 main:Ready queue thread stoped. [I]2022/07/27 21:30:14.977 main:NodePool stoped.将流程运行结束的json字符串拷贝到下面，然后点击[show network]按钮，可以显示出流程执行后的状态
绿色：执行成功，红色：执行失败，白色：未执行
去除不必要的业务节点
实际使用过程中，并非每个业务节点都需要对应业务代码，
比如上例中【可以预定】和【不可预定】可以没有相应的业务逻辑，空跑一下转到后面的节点即可。
所以，我们可以在业务逻辑中去掉上述节点，如下，去掉了【可以预定】和【不可预定】对应的业务方法。
Flow3.java(注意文件编码为UTF-8)
/** * * @author NoBugLady * */ public class Flow3 extends FlowRunner { private String result; public String getResult() { return result; } @Node(label = "start") public void processStart() throws InterruptedException { System.out.println("启动开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("启动结束"); } @Node(label = "检查订单") public int processCheckOrder() throws InterruptedException { System.out.println("检查订单开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("检查订单结束"); return 1; } @Node(label = "查询用户信息") public void processSearchUser() throws InterruptedException { System.out.println("查询用户信息开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("查询用户信息结束"); } @Node(label = "查询酒店信息") public void processSearchHotel() throws InterruptedException { System.out.println("查询酒店信息开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("查询酒店信息结束"); } @Node(label = "下单") public void processOrder() throws InterruptedException { System.out.println("下单开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("下单结束"); } @Node(label = "下单成功") public void processSuccess() throws InterruptedException { System.out.println("下单成功开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("下单成功结束"); result = "success"; } @Node(label = "失败处理") public void processError() throws InterruptedException { System.out.println("失败处理开始 （模拟业务等待3秒）"); Thread.sleep(3000); System.out.println("失败处理结束"); result = "error"; } }启动代码和流程配置文件不变
App3.java(注意文件编码为UTF-8)
/** * * @author NoBugLady * */ public class App3 { public static void main(String[] args) { Flow3 testFlow = new Flow3(); testFlow.startFlow(true); System.out.println(testFlow.getResult()); // 不建议每次都调用shutdown,可以在整个App关闭的时候调用一次shutdown FlowStarter.shutdown(); } }Flow3.json(注意文件编码为UTF-8)
{ "flowId": "your flow id", "nodes": [ { "id": "1", "label": "start" }, { "id": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "label": "查询用户信息", "readyCheck": 0 }, { "id": "1a90a997-4390-470a-ae7c-626a725438d2", "label": "查询酒店信息", "readyCheck": 0 }, { "id": "52289e99-363d-4453-8077-ca8bdc6d35bf", "label": "下单", "readyCheck": 0 }, { "id": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2", "label": "下单成功", "readyCheck": 0 }, { "id": "5a1068c1-e365-4a51-b617-8cc093ce5e3d", "label": "检查订单", "readyCheck": 0 }, { "id": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10", "label": "可以预定", "readyCheck": 0 }, { "id": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88", "label": "不可预定", "readyCheck": 0 }, { "id": "8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e", "label": "失败处理", "readyCheck": 0 } ], "edges": [ { "id": "1", "from": "1", "to": "2", "arrows": "to" }, { "id": "b3ad7ab3-8fb6-4527-8cae-6845e03da3e4", "from": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10", "to": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "arrows": "to" }, { "id": "001375c7-19e7-436b-bbcd-68e36c8f23b7", "from": "5a1068c1-e365-4a51-b617-8cc093ce5e3d", "to": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10", "condition": "1", "arrows": "to" }, { "id": "dd830043-c7a7-4c71-b91c-10c007b7b19c", "from": "1a90a997-4390-470a-ae7c-626a725438d2", "to": "52289e99-363d-4453-8077-ca8bdc6d35bf", "arrows": "to" }, { "id": "21c2c69d-0050-4eca-8283-5a2bcbdc6c37", "from": "52289e99-363d-4453-8077-ca8bdc6d35bf", "to": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2", "arrows": "to" }, { "id": "19f2f329-8163-4dc6-a353-800df79d18a6", "from": "a1a38c2e-0e05-4c68-bd49-f12aea070876", "to": "52289e99-363d-4453-8077-ca8bdc6d35bf", "arrows": "to" }, { "id": "822e5c76-ce59-4962-b5e3-a3dfd905fa05", "from": "1", "to": "5a1068c1-e365-4a51-b617-8cc093ce5e3d", "arrows": "to" }, { "id": "36d6e697-b835-4374-9fa7-c1cd24b100e9", "from": "5a1068c1-e365-4a51-b617-8cc093ce5e3d", "to": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88", "condition": "0", "arrows": "to" }, { "id": "d4a03a18-2a24-4bec-9717-a82c8a4a764b", "from": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10", "to": "1a90a997-4390-470a-ae7c-626a725438d2", "arrows": "to" }, { "id": "673051d5-27f5-4578-8fc2-4f5e7352d5d2", "from": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88", "to": "8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e", "arrows": "to" } ] }运行结果
[I]2022/07/27 21:34:29.548 main:ladybugflow.properties in root path not found, use default configuration [I]2022/07/27 21:34:29.558 main:NodePool started. [I]2022/07/27 21:34:29.560 main:Ready queue consumer thread started. [I]2022/07/27 21:34:29.563 main:Complete queue consumer thread started. [I]2022/07/27 21:34:30.494 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] main:json: {"flowId":"your flow id","nodes":[{"id":"1","label":"start","readyCheck":0},{"id":"a1a38c2e-0e05-4c68-bd49-f12aea070876","label":"查询用户信息","readyCheck":0},{"id":"1a90a997-4390-470a-ae7c-626a725438d2","label":"查询酒店信息","readyCheck":0},{"id":"52289e99-363d-4453-8077-ca8bdc6d35bf","label":"下单","readyCheck":0},{"id":"16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","label":"下单成功","readyCheck":0},{"id":"5a1068c1-e365-4a51-b617-8cc093ce5e3d","label":"检查订单","readyCheck":0},{"id":"0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","label":"可以预定","readyCheck":0},{"id":"7e841bf6-b422-4c2c-b4ec-d2352e22cc88","label":"不可预定","readyCheck":0},{"id":"8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e","label":"失败处理","readyCheck":0}],"edges":[{"id":"1","from":"1","to":"2","condition":null,"arrows":"to"},{"id":"b3ad7ab3-8fb6-4527-8cae-6845e03da3e4","from":"0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","to":"a1a38c2e-0e05-4c68-bd49-f12aea070876","condition":null,"arrows":"to"},{"id":"001375c7-19e7-436b-bbcd-68e36c8f23b7","from":"5a1068c1-e365-4a51-b617-8cc093ce5e3d","to":"0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","condition":"1","arrows":"to"},{"id":"dd830043-c7a7-4c71-b91c-10c007b7b19c","from":"1a90a997-4390-470a-ae7c-626a725438d2","to":"52289e99-363d-4453-8077-ca8bdc6d35bf","condition":null,"arrows":"to"},{"id":"21c2c69d-0050-4eca-8283-5a2bcbdc6c37","from":"52289e99-363d-4453-8077-ca8bdc6d35bf","to":"16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","condition":null,"arrows":"to"},{"id":"19f2f329-8163-4dc6-a353-800df79d18a6","from":"a1a38c2e-0e05-4c68-bd49-f12aea070876","to":"52289e99-363d-4453-8077-ca8bdc6d35bf","condition":null,"arrows":"to"},{"id":"822e5c76-ce59-4962-b5e3-a3dfd905fa05","from":"1","to":"5a1068c1-e365-4a51-b617-8cc093ce5e3d","condition":null,"arrows":"to"},{"id":"36d6e697-b835-4374-9fa7-c1cd24b100e9","from":"5a1068c1-e365-4a51-b617-8cc093ce5e3d","to":"7e841bf6-b422-4c2c-b4ec-d2352e22cc88","condition":"0","arrows":"to"},{"id":"d4a03a18-2a24-4bec-9717-a82c8a4a764b","from":"0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","to":"1a90a997-4390-470a-ae7c-626a725438d2","condition":null,"arrows":"to"},{"id":"673051d5-27f5-4578-8fc2-4f5e7352d5d2","from":"7e841bf6-b422-4c2c-b4ec-d2352e22cc88","to":"8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e","condition":null,"arrows":"to"}]} [I]2022/07/27 21:34:30.497 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-1:execute node id:1 [I]2022/07/27 21:34:30.498 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-1:execute node name:start 启动开始 （模拟业务等待3秒） 启动结束 [I]2022/07/27 21:34:33.502 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-1:execute node id:5a1068c1-e365-4a51-b617-8cc093ce5e3d [I]2022/07/27 21:34:33.503 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-1:execute node name:检查订单 检查订单开始 （模拟业务等待3秒） 检查订单结束 [I]2022/07/27 21:34:36.518 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-1:execute node id:0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10 [I]2022/07/27 21:34:36.518 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-1:execute node name:可以预定 [I]2022/07/27 21:34:36.519 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-1:execute node id:a1a38c2e-0e05-4c68-bd49-f12aea070876 [I]2022/07/27 21:34:36.519 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-1:execute node name:查询用户信息 查询用户信息开始 （模拟业务等待3秒） [I]2022/07/27 21:34:36.519 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-2:execute node id:1a90a997-4390-470a-ae7c-626a725438d2 [I]2022/07/27 21:34:36.519 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-2:execute node name:查询酒店信息 查询酒店信息开始 （模拟业务等待3秒） 查询用户信息结束 查询酒店信息结束 [I]2022/07/27 21:34:39.522 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-2:execute node id:52289e99-363d-4453-8077-ca8bdc6d35bf [I]2022/07/27 21:34:39.522 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-2:execute node name:下单 下单开始 （模拟业务等待3秒） 下单结束 [I]2022/07/27 21:34:42.529 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-2:execute node id:16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2 [I]2022/07/27 21:34:42.529 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] pool-1-thread-2:execute node name:下单成功 下单成功开始 （模拟业务等待3秒） 下单成功结束 [I]2022/07/27 21:34:45.530 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] Thread-1:Complete success. [I]2022/07/27 21:34:45.532 [your flow id][970f3310-4ca1-41db-9348-bcc3fe994ce5] Thread-1:json: {"nodes":[{"id": "1","label": "start" ,"color": "#36AE7C"},{"id": "a1a38c2e-0e05-4c68-bd49-f12aea070876","label": "查询用户信息" ,"color": "#36AE7C"},{"id": "1a90a997-4390-470a-ae7c-626a725438d2","label": "查询酒店信息" ,"color": "#36AE7C"},{"id": "52289e99-363d-4453-8077-ca8bdc6d35bf","label": "下单" ,"color": "#36AE7C"},{"id": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","label": "下单成功" ,"color": "#36AE7C"},{"id": "5a1068c1-e365-4a51-b617-8cc093ce5e3d","label": "检查订单" ,"color": "#36AE7C"},{"id": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","label": "可以预定" ,"color": "#36AE7C"},{"id": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88","label": "不可预定" ,"color": "#E8F9FD"},{"id": "8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e","label": "失败处理" ,"color": "#E8F9FD"}],"edges":[{"id": "1","from": "1","to": "2","arrows": "to"},{"id": "b3ad7ab3-8fb6-4527-8cae-6845e03da3e4","from": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","to": "a1a38c2e-0e05-4c68-bd49-f12aea070876","arrows": "to"},{"id": "001375c7-19e7-436b-bbcd-68e36c8f23b7","from": "5a1068c1-e365-4a51-b617-8cc093ce5e3d","to": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","arrows": "to"},{"id": "dd830043-c7a7-4c71-b91c-10c007b7b19c","from": "1a90a997-4390-470a-ae7c-626a725438d2","to": "52289e99-363d-4453-8077-ca8bdc6d35bf","arrows": "to"},{"id": "21c2c69d-0050-4eca-8283-5a2bcbdc6c37","from": "52289e99-363d-4453-8077-ca8bdc6d35bf","to": "16422cbb-ccb0-4fe2-952b-e3ad5c3acbb2","arrows": "to"},{"id": "19f2f329-8163-4dc6-a353-800df79d18a6","from": "a1a38c2e-0e05-4c68-bd49-f12aea070876","to": "52289e99-363d-4453-8077-ca8bdc6d35bf","arrows": "to"},{"id": "822e5c76-ce59-4962-b5e3-a3dfd905fa05","from": "1","to": "5a1068c1-e365-4a51-b617-8cc093ce5e3d","arrows": "to"},{"id": "36d6e697-b835-4374-9fa7-c1cd24b100e9","from": "5a1068c1-e365-4a51-b617-8cc093ce5e3d","to": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88","arrows": "to"},{"id": "d4a03a18-2a24-4bec-9717-a82c8a4a764b","from": "0aa3e9de-4015-4db0-9eda-fd1cd0fbbf10","to": "1a90a997-4390-470a-ae7c-626a725438d2","arrows": "to"},{"id": "673051d5-27f5-4578-8fc2-4f5e7352d5d2","from": "7e841bf6-b422-4c2c-b4ec-d2352e22cc88","to": "8fc59321-8b96-4e17-9d8e-0c8f5fe9c45e","arrows": "to"}]} success [I]2022/07/27 21:34:45.532 main:Ready queue thread stoped. [I]2022/07/27 21:34:45.532 main:Ready queue thread stoped. [I]2022/07/27 21:34:45.533 main:NodePool stoped.将流程运行结束的json字符串拷贝到下面，然后点击[show network]按钮，可以显示出流程执行后的状态
绿色：执行成功，红色：执行失败，白色：未执行
感谢您读文章到这里。
最后
设计资料和详细的使用方法可以参照上一篇文章：https://www.cnblogs.com/nobuglady/p/16474433.html
源码：https://github.com/nobuglady/ladybugflow
运行例源码：https://github.com/nobuglady/ladybugflow-demo
