camunda源代码编译运行（一）：下载编译camunda源代码

使用camunda开源工作流引擎有多种方式，包括：通过docker运行、使用springboot集成、部署camunda发行包、基于源代码编译运行等多种方式，其中，通过源代码编译集成整合方式，是最复杂的一种方式，文本重点介绍如何通过camunda7.19源代码编译，集成整合到自己的项目工程里。

1、下载camunda源代码

camunda开源github下载地址：https://github.com/camunda/camunda-bpm-platform

我选择camunda最后一个可支持JDK1.8的稳定版本camunda7.19

camunda-bpm-platform-7.19.0版本的下载地址：

https://github.com/camunda/camunda-bpm-platform/releases/tag/7.19.0

2、编译camunda源代码

下载下来是一个20多M的zip压缩包，直接解压即可。

Camunda7.19源代码核心包说明：

maven工程名称	说明
camunda-database-settings	camunda支持的各种数据库定义
camunda-engine	Camunda BPMN流程引擎核心包
camunda-engine-dmn	Camunda dmn引擎核心包
camunda-engine-plugins	camunda支持的插件包
camunda-engine-rest-core	camunda发布rest服务的核心包
camunda-engine-spring	camunda集成spring框架的包
camunda-model-apis	camunda中各种模型API接口包
camunda-parent	Camunda maven工程父包，主要定义第三方Jar包版本
camunda-qa	camunda与各种环境的集成测试包
camunda-bpm-spring-boot-starter	camunda集成springboot框架的包
camunda-webapp	camunda发布web程序构建包
webapps\frontend	camunda的前端代码包，基于angular开发

首先要编译源代码，要确保下载的源代码可编译通过，建议使用maven命令行编译运行，这个时间预计1个小时左右，跟你的网络有关系，也可能有的包下载不下来失败，可多尝试几次。

我本地使用的Java jdk版本是java version "11.0.6"，maven版本是Apache Maven 3.8.2，理论上jdk1.8版本以上都可以。

使用命令行cd到camunda-bpm-platform-7.19.0根目录下，使用maven命令执行编译：

mvn clean install -DskipTests=true

由于camunda源代码中有大量的测试用例，编译比较耗时，这里通过-DskipTests=true命令跳过测试用例执行。

注意：以下几个module执行涉及到第三方Jar包下载不了可能会报错，这几个跟Javaee相关的集成模块可以pom.xml中注释掉，不影响后续使用。

<module>javaee/ejb-service</module>

<module>javaee/ejb-client</module>

<module>javaee/ejb-client-jakarta</module>

<module>javaee/jobexecutor-ra</module>

<module>javaee/jobexecutor-rar</module>

我们也不会使用camunda的web前端，webapps也可注释掉。

<module>webapps</module>

最后执行mvn clean install -DskipTests=true成功的结果：

[INFO] Reactor Summary for Camunda Platform - Root Pom 7.19.0:[INFO][INFO] Camunda Platform - Root Pom ........................ SUCCESS [  2.687 s][INFO] Camunda Platform - Parent Pom ...................... SUCCESS [  0.000 s][INFO] Camunda Platform - database settings ............... SUCCESS [  0.032 s][INFO] camunda Model APIs ................................. SUCCESS [  0.031 s][INFO] Camunda Platform - Xml Model API ................... SUCCESS [  6.407 s][INFO] Camunda Platform - ArchUnit ........................ SUCCESS [  0.954 s][INFO] Camunda Platform - BPMN Model API .................. SUCCESS [ 12.806 s][INFO] Camunda Platform - CMMN Model API .................. SUCCESS [  5.918 s][INFO] camunda Commons - Typed Values ..................... SUCCESS [  5.595 s][INFO] Camunda Platform - DMN Model API ................... SUCCESS [  5.078 s][INFO] camunda DMN - engine - root ........................ SUCCESS [  0.062 s][INFO] camunda DMN - engine FEEL - API .................... SUCCESS [  0.739 s][INFO] camunda DMN - engine FEEL - JUEL ................... SUCCESS [  8.282 s][INFO] camunda DMN - engine FEEL - SCALA .................. SUCCESS [  1.516 s][INFO] camunda DMN - engine ............................... SUCCESS [  3.933 s][INFO] Camunda Test Utils - Testcontainers ................ SUCCESS [  0.773 s][INFO] Camunda Platform - engine .......................... SUCCESS [02:14 min][INFO] Camunda Platform - engine - Spring ................. SUCCESS [  3.640 s][INFO] Camunda Platform - engine plugins .................. SUCCESS [  0.086 s][INFO] Camunda Platform - engine plugins - spin ........... SUCCESS [  1.106 s][INFO] Camunda Platform - engine plugins - connect ........ SUCCESS [  0.267 s][INFO] Camunda Platform - Assert - Root ................... SUCCESS [  0.048 s][INFO] Camunda Platform - Assert .......................... SUCCESS [  0.852 s][INFO] Camunda Platform - Spring Boot Starter - Root Pom .. SUCCESS [  0.734 s][INFO] Camunda Platform - Spring Boot Starter - Test ...... SUCCESS [  0.714 s][INFO] Camunda Platform - Spring Boot Starter ............. SUCCESS [  4.950 s][INFO] Camunda Platform - Bom ............................. SUCCESS [  0.077 s][INFO] Camunda Platform - Core - Internal Dependencies .... SUCCESS [  0.040 s][INFO] Camunda Platform - engine - REST - Root ............ SUCCESS [  0.036 s][INFO] Camunda Platform - engine - REST ................... SUCCESS [  8.516 s][INFO] Camunda Platform - Spring Boot Starter - Rest ...... SUCCESS [  0.283 s][INFO] Camunda Platform - Java External Task Client - ROOT  SUCCESS [  0.050 s][INFO] Camunda Platform - Java External Task Client - QA .. SUCCESS [  0.051 s][INFO] Camunda Platform - Java External Task Client - QA VARIABLE TEST SUCCESS [  2.222 s][INFO] Camunda Platform - engine - Cdi .................... SUCCESS [ 10.352 s][INFO] Camunda Platform - engine plugins - identity - ldap  SUCCESS [  0.704 s][INFO] Camunda Platform - License Book .................... SUCCESS [  1.496 s][INFO] Camunda Platform - tomcat .......................... SUCCESS [  0.044 s][INFO] Camunda Platform - tomcat Assembly ................. SUCCESS [ 15.426 s][INFO] Camunda Platform - engine - REST - Assembly ........ SUCCESS [  7.909 s][INFO] Camunda Platform - Java External Task Client - CLIENT SUCCESS [  2.110 s][INFO] Camunda Platform - Spring Boot Starter - Client - Spring SUCCESS [  0.397 s][INFO] Camunda Platform - Spring Boot Starter - Client - Spring Boot SUCCESS [  0.493 s][INFO] Camunda Platform - Spring Boot Starter - QA - Root Pom SUCCESS [  0.085 s][INFO] Camunda Platform - Spring Boot Starter - QA - Simple SUCCESS [  0.142 s][INFO] Camunda Platform - Spring Boot Starter - QA - Request Scope SUCCESS [  0.144 s][INFO] Camunda Platform - Spring Boot Starter - QA - Plugins SUCCESS [  0.046 s][INFO] Camunda Platform - Spring Boot Starter - QA - Plugins - Spin SUCCESS [  0.033 s][INFO] Camunda Platform - Spring Boot Starter - QA - Plugins - Spin Json Jackson SUCCESS [  0.204 s][INFO] Camunda Platform - Spring Boot Starter - QA - Plugins - Spin All SUCCESS [  0.144 s][INFO] Camunda Platform - Spring Boot Starter - QA - Liquibase SUCCESS [  0.250 s][INFO] Camunda Platform - webapp - webjar ................. SUCCESS [  7.726 s][INFO] Camunda Platform - Spring Boot Starter - Webapps Core SUCCESS [  0.291 s][INFO] Camunda Platform - Spring Boot Starter - Webapps ... SUCCESS [  0.203 s][INFO] Camunda Platform - Example - Root .................. SUCCESS [  0.053 s][INFO] Camunda Platform - Example - Invoice ............... SUCCESS [  0.559 s][INFO] Camunda Platform - Spring Boot Starter - QA - Webapps SUCCESS [  0.031 s][INFO] Camunda Platform - Spring Boot Starter - QA - Webapps Invoice Example SUCCESS [  0.156 s][INFO] Camunda Platform - Spring Boot Starter - QA - Webapps Runtime SUCCESS [  0.094 s][INFO] Camunda Platform - Quarkus Extension - Parent ...... SUCCESS [  0.048 s][INFO] Camunda Platform - Quarkus Extension - Engine - Parent SUCCESS [  0.046 s][INFO] Camunda Platform - Quarkus Extension - Engine - Runtime SUCCESS [  1.784 s][INFO] Camunda Platform - Quarkus Extension - Engine - Deployment SUCCESS [  1.618 s][INFO] Camunda Platform - Quarkus Extension - Engine - CDI QA SUCCESS [  0.427 s][INFO] Camunda Platform - QA .............................. SUCCESS [  0.046 s][INFO] Camunda Platform - QA - ensure clean db plugin ..... SUCCESS [  0.117 s][INFO] Camunda Platform - QA Wildfly Test Runtime ......... SUCCESS [  0.433 s][INFO] Camunda Platform - QA Wildfly 26 Test Runtime ...... SUCCESS [  0.396 s][INFO] Camunda Platform - QA Tomcat Test Runtime .......... SUCCESS [  0.050 s][INFO] Camunda Platform - QA Tomcat Vanilla Test Runtime .. SUCCESS [  0.046 s][INFO] Camunda Platform - QA Wildfly Vanilla Test Runtime . SUCCESS [  0.032 s][INFO] Camunda Platform - QA Wildfly 26 Vanilla Test Runtime SUCCESS [  0.033 s][INFO] Camunda Platform - QA Integration Tests - Webapps Root SUCCESS [  2.216 s][INFO] Camunda Platform - QA Integration Tests - Webapps ITs SUCCESS [  0.698 s][INFO] Camunda Platform - Client .......................... SUCCESS [  0.119 s][INFO] Camunda Platform - QA Integration Tests - Engine ... SUCCESS [  4.576 s][INFO] Camunda Platform - EJB Client Jakarta .............. SUCCESS [  1.170 s][INFO] Camunda Platform - engine - Cdi - Jakarta .......... SUCCESS [  2.891 s][INFO] Camunda Platform - QA Integration Tests - Engine - Jakarta SUCCESS [  5.385 s][INFO] Camunda Platform - QA - upgrade - database ......... SUCCESS [  0.094 s][INFO] Camunda Platform - QA - upgrade - scenario util .... SUCCESS [  0.250 s][INFO] Camunda Platform - QA - upgrade - instance migration SUCCESS [  0.062 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.2.0 SUCCESS [  1.390 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.3.0 SUCCESS [  0.438 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.4.0 SUCCESS [  0.172 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.5.0 SUCCESS [  0.312 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.6.0 SUCCESS [  0.328 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.7.0 SUCCESS [  0.375 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.8.0 SUCCESS [  0.485 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.9.0 SUCCESS [  0.484 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.10.0 SUCCESS [  0.641 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.11.0 SUCCESS [  0.312 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.12.0 SUCCESS [  0.844 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.13.0 SUCCESS [  0.609 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.14.0 SUCCESS [  0.828 s][INFO] Camunda Platform - QA - upgrade - instance migration - test fixture - 7.15.0 SUCCESS [  0.859 s][INFO] camunda BPM - QA - upgrade - instance migration - test fixture - 7.16.0 SUCCESS [  0.844 s][INFO] camunda BPM - QA - upgrade - instance migration - test fixture - 7.17.0 SUCCESS [  0.640 s][INFO] camunda BPM - QA - upgrade - instance migration - test fixture - 7.18.0 SUCCESS [  0.469 s][INFO] camunda BPM - QA - upgrade - instance migration - test fixture - 7.19.0 SUCCESS [  0.172 s][INFO] Camunda Platform - QA - upgrade - instance migration - test SUCCESS [  0.516 s][INFO] Camunda Platform - QA - upgrade - rolling update ... SUCCESS [  0.054 s][INFO] Camunda Platform - QA - upgrade - rolling update util SUCCESS [  0.133 s][INFO] Camunda Platform - QA - upgrade - rolling update - create old engine SUCCESS [  0.219 s][INFO] Camunda Platform - QA - upgrade - rolling update - create new engine SUCCESS [  0.187 s][INFO] Camunda Platform - QA - upgrade - rolling update - test old engine SUCCESS [  0.203 s][INFO] Camunda Platform - QA - test new schema with old engine SUCCESS [  0.063 s][INFO] Camunda Platform - QA Performance Tests Engine ..... SUCCESS [  9.141 s][INFO] Large Data Tests ................................... SUCCESS [  0.203 s][INFO] camunda DMN - engine - bom ......................... SUCCESS [  0.031 s][INFO] Camunda Platform - JUnit 5 Extension ............... SUCCESS [  0.242 s][INFO] Camunda Platform - QA - Assert ..................... SUCCESS [  0.141 s][INFO] Camunda Platform - engine - Cdi - Compatbility Test Weld 3 SUCCESS [  0.443 s][INFO] Camunda Platform - engine - CDI - Root ............. SUCCESS [  0.041 s][INFO] Camunda Platform - engine - Compatbility Test Spring 4 SUCCESS [  0.328 s][INFO] Camunda Platform - engine - Spring - Root .......... SUCCESS [  0.032 s][INFO] Camunda Platform - engine - REST - OpenAPI (JSON Generator) SUCCESS [  0.109 s][INFO] Camunda Platform - engine - REST - OpenAPI ......... SUCCESS [ 41.661 s][INFO] Camunda Platform - engine - REST Jakarta ........... SUCCESS [01:28 min][INFO] Camunda Platform - engine - REST - Assembly Jakarta  SUCCESS [  2.850 s][INFO] Camunda Platform - Example - Invoice Jakarta ....... SUCCESS [  2.167 s][INFO] Camunda Platform - JBoss ........................... SUCCESS [  0.019 s][INFO] Camunda Platform - webapp - JBoss .................. SUCCESS [  5.335 s][INFO] Camunda Platform - webapp - JBoss Standalone ....... SUCCESS [  8.444 s][INFO] Camunda Platform - SQL scripts ..................... SUCCESS [ 15.140 s][INFO] Camunda Platform - webapp - Tomcat ................. SUCCESS [  3.849 s][INFO] Camunda Platform - tomcat Distro ................... SUCCESS [ 39.697 s][INFO] Camunda Platform - webapp - Tomcat Standalone ...... SUCCESS [  7.264 s][INFO] Camunda Platform - Run - Root ...................... SUCCESS [  0.022 s][INFO] Camunda Platform - Run - Modules ................... SUCCESS [  0.038 s][INFO] Camunda Platform - Run - Module REST ............... SUCCESS [ 12.390 s][INFO] camunda Platform - Run - Module Swagger UI ......... SUCCESS [17:24 min][INFO] Camunda Platform - Run - Module Example Invoice .... SUCCESS [  8.375 s][INFO] Camunda Platform - Run - Core ...................... SUCCESS [  9.920 s][INFO] Camunda Platform - Run - Assembly .................. SUCCESS [  9.158 s][INFO] Camunda Platform - Run - QA ........................ SUCCESS [  0.029 s][INFO] Camunda Platform - Run - QA - Integration Tests .... SUCCESS [12:17 min][INFO] Camunda Platform - Run - Module Webapps ............ SUCCESS [  0.308 s][INFO] Camunda Platform - Run - Distribution .............. SUCCESS [ 30.881 s][INFO] Camunda Platform - Run - QA - Runtime .............. SUCCESS [  0.566 s][INFO] Camunda Platform - Wildfly ......................... SUCCESS [  0.056 s][INFO] Camunda Platform - Wildfly Subsystem ............... SUCCESS [ 26.416 s][INFO] Camunda Platform - Wildfly Modules ................. SUCCESS [ 15.832 s][INFO] Camunda Platform - Wildfly Assembly ................ SUCCESS [01:23 min][INFO] Camunda Platform - webapp - WildFly ................ SUCCESS [  9.859 s][INFO] Camunda Platform - Wildfly Distro .................. SUCCESS [01:34 min][INFO] Camunda Platform - Wildfly 26 ...................... SUCCESS [  0.043 s][INFO] Camunda Platform - Wildfly 26 Subsystem ............ SUCCESS [ 28.524 s][INFO] Camunda Platform - Wildfly 26 Modules .............. SUCCESS [ 22.495 s][INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time:  44:25 min[INFO] Finished at: 2024-02-17T13:45:01+08:00[INFO] ---------------------------------------------------------------------