版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/xiaozaq/article/details/88947913
1.下载源码
找了很久才找到源码。之前都是下载的activiti-explorer.war。直接放到tomcate运行的。想看源码找了很久没找到。
下载activiti 5.23.0版本的源码。这个我找到的包含activiti-explorer最高版本了。更高版本好像没有activiti-explorer了。
https://mvnrepository.com/artifact/org.activiti/activiti-engine
mvn仓库里我只找到activiti 5.22.0。没有5.23.0版本。5.23.0版本下载地址：
github：https://github.com/Activiti/Activiti/tree/5.23.0-release
云盘链接：https://pan.baidu.com/s/1wMupYHqYvlT__xFdYjMkiw 提取码：8i06
2.解压源码到指定目录。
3.eclipse导入maven项目。
导入时需要下载大量的jar。右下角有下载进度。这个步骤需要时间较长。我大概花费了3个小时左右。需要耐心吧依赖都下载完成。
4.导入完成后运行项目。
右键项目”activiti-webapp-explorer2“ ——》Run as ——》maven build ... ——》Goals： tomcate7:run——》Run
5.运行后会报错。
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Activiti - Webapp - Explorer V2 5.23.0
[INFO] ------------------------------------------------------------------------
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-engine/5.23.0/activiti-engine-5.23.0.pom
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-engine/5.23.0/activiti-engine-5.23.0.pom
[WARNING] The POM for org.activiti:activiti-engine:jar:5.23.0 is missing, no dependency information available
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-spring/5.23.0/activiti-spring-5.23.0.pom
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-spring/5.23.0/activiti-spring-5.23.0.pom
[WARNING] The POM for org.activiti:activiti-spring:jar:5.23.0 is missing, no dependency information available
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-explorer/5.23.0/activiti-explorer-5.23.0.pom
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-explorer/5.23.0/activiti-explorer-5.23.0.pom
[WARNING] The POM for org.activiti:activiti-explorer:jar:5.23.0 is missing, no dependency information available
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-modeler/5.23.0/activiti-modeler-5.23.0.pom
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-modeler/5.23.0/activiti-modeler-5.23.0.pom
[WARNING] The POM for org.activiti:activiti-modeler:jar:5.23.0 is missing, no dependency information available
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-diagram-rest/5.23.0/activiti-diagram-rest-5.23.0.pom
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-diagram-rest/5.23.0/activiti-diagram-rest-5.23.0.pom
[WARNING] The POM for org.activiti:activiti-diagram-rest:jar:5.23.0 is missing, no dependency information available
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-simple-workflow/5.23.0/activiti-simple-workflow-5.23.0.pom
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-simple-workflow/5.23.0/activiti-simple-workflow-5.23.0.pom
[WARNING] The POM for org.activiti:activiti-simple-workflow:jar:5.23.0 is missing, no dependency information available
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-engine/5.23.0/activiti-engine-5.23.0.jar
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-spring/5.23.0/activiti-spring-5.23.0.jar
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-explorer/5.23.0/activiti-explorer-5.23.0.jar
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-modeler/5.23.0/activiti-modeler-5.23.0.jar
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-diagram-rest/5.23.0/activiti-diagram-rest-5.23.0.jar
[INFO] Downloading: http://maven.vaadin.com/vaadin-addons/org/activiti/activiti-simple-workflow/5.23.0/activiti-simple-workflow-5.23.0.jar
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-engine/5.23.0/activiti-engine-5.23.0.jar
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-spring/5.23.0/activiti-spring-5.23.0.jar
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-explorer/5.23.0/activiti-explorer-5.23.0.jar
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-modeler/5.23.0/activiti-modeler-5.23.0.jar
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-diagram-rest/5.23.0/activiti-diagram-rest-5.23.0.jar
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/activiti/activiti-simple-workflow/5.23.0/activiti-simple-workflow-5.23.0.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 20.067 s
[INFO] Finished at: 2019-04-01T15:03:06+08:00
[INFO] Final Memory: 13M/37M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project activiti-webapp-explorer2: Could not resolve dependencies for project org.activiti:activiti-webapp-explorer2:war:5.23.0: The following artifacts could not be resolved: org.activiti:activiti-engine:jar:5.23.0, org.activiti:activiti-spring:jar:5.23.0, org.activiti:activiti-explorer:jar:5.23.0, org.activiti:activiti-modeler:jar:5.23.0, org.activiti:activiti-diagram-rest:jar:5.23.0, org.activiti:activiti-simple-workflow:jar:5.23.0: Could not find artifact org.activiti:activiti-engine:jar:5.23.0 in vaadin-addons (http://maven.vaadin.com/vaadin-addons) -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
[ERROR] Failed to execute goal on project activiti-webapp-explorer2:
Could not resolve dependencies for project org.activiti:activiti-webapp-explorer2:war:5.23.0:
The following artifacts could not be resolved:
org.activiti:activiti-engine:jar:5.23.0,
org.activiti:activiti-spring:jar:5.23.0,
org.activiti:activiti-explorer:jar:5.23.0,
org.activiti:activiti-modeler:jar:5.23.0,
org.activiti:activiti-diagram-rest:jar:5.23.0,
org.activiti:activiti-simple-workflow:jar:5.23.0: Could not find artifact
org.activiti:activiti-engine:jar:5.23.0 in vaadin-addons (http://maven.vaadin.com/vaadin-addons) -> [Help 1]
主要是上面这句。提示activiti-engine:jar:5.23.0，activiti-spring:jar:5.23.0等等都没有。
之前说过mvn仓库里找不到5.23.0版本的activiti的。所以需要根据源码先安装这些jar。才能运行activiti-webapp-explorer2。
6.安装依赖项目。
比如安装activiti-engine项目：
右键项目”activiti-engine“ ——》Run as ——》maven install——》提示安装成功（mvn仓库可以看到activiti的5.23.0版本了）
其他依赖项目类似安装。都安装好后，再次执行第5步，这可以正常运行activiti-webapp-explorer2项目了。
这里需要注意的几点：
1.花费时间较长，maven install过程中还会继续下载很多依赖。
2.maven install时，会调用测试用例tests。我的电脑运行用例时报错，提示内存溢出了。解决办法：不调用测试用例。
activiti-engine/pom.xml中，大概193行加入下面配置，跳过测试。
<skipTests>true</skipTests> 
7.debug调试。（前提是第5步是dubug方式运行activiti-webapp-explorer2项目）
设置断点：activiti-explorer项目——》org.activiti.explorer.filter.ExplorerFilter ——》第36行设置断点
访问：http://localhost:8080/activiti-explorer
此时eclipse会进入debug模式。在断点出暂停。
maven 多模块工程 Debug断点出现无法找到源问题：
https://blog.csdn.net/u010154380/article/details/70880217
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