activiti使用详解(一)

简单的api程序示例（maven工程）：

下载链接： http://pan.baidu.com/s/1pJ1TfgZ

https://github.com/frederikheremans/activiti-dynamic-process

http://topmanopensource.iteye.com/blog/1315258

pom.xml

xsi:schemaLocation=" http://maven.apache.org/POM/4.0.0  http://maven.apache.org/maven-v4_0_0.xsd">   4.0.0   org.activiti.examples   activiti-examples   1.0-SNAPSHOT   jar   BPMN 2.0 with Activiti - Examples        5.18.0                  org.activiti       activiti-engine       ${activiti-version}                 org.activiti       activiti-spring       ${activiti-version}                 org.codehaus.groovy       groovy-all       2.4.3                 com.h2database       h2       1.3.168                 org.slf4j       slf4j-api       1.7.6                 org.slf4j       slf4j-jdk14       1.7.6                 junit       junit       4.11           mysql mysql-connector-java 5.1.29                          org.apache.maven.plugins         maven-compiler-plugin        2.3.2                   1.6          1.6                             org.apache.maven.plugins         maven-eclipse-plugin         true                               org.eclipse.jdt.USER_LIBRARY/Activiti Designer Extensions

第一种方式使用代码形式创建数据库(不推荐，建议使用方法二的：配置文件)：

package junit; import org.activiti.engine.ProcessEngine; import org.activiti.engine.ProcessEngineConfiguration; import org.junit.Test; public class TestActivit{    @Test  public void creatTable(){   ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();   processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver");   processEngineConfiguration.setJdbcUrl("jdbc:mysql://172.31.2.14:3306/activiti?useUnicode=true&characterEncoding=UTF-8&rewriteBatchedStatements=true");   processEngineConfiguration.setDatabaseSchemaUpdate(processEngineConfiguration.DB_SCHEMA_UPDATE_CREATE_DROP);   processEngineConfiguration.setJdbcUsername("root");   processEngineConfiguration.setJdbcPassword("yunjisuan");     ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine();  } }

方法二（使用spring 配置文件依赖注入-建议使用此方法）：

package junit; import org.activiti.engine.ProcessEngine; import org.activiti.engine.ProcessEngineConfiguration; import org.junit.Test; public class TestActivit{    @Test  public void creatTable(){   ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();   processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver");   processEngineConfiguration.setJdbcUrl("jdbc:mysql://172.31.2.14:3306/activiti?useUnicode=true&characterEncoding=UTF-8&rewriteBatchedStatements=true");   processEngineConfiguration.setDatabaseSchemaUpdate(processEngineConfiguration.DB_SCHEMA_UPDATE_CREATE_DROP);   processEngineConfiguration.setJdbcUsername("root");   processEngineConfiguration.setJdbcPassword("yunjisuan");     processEngineConfiguration.buildProcessEngine();  }    @Test  public void creatTable2(){   ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti.cfg.xml").buildProcessEngine();  } }

需要增加一个配置文件：

xmlns:context=" http://www.springframework.org/schema/context" xmlns:tx=" http://www.springframework.org/schema/tx"   xmlns:jee=" http://www.springframework.org/schema/jee" xmlns:aop=" http://www.springframework.org/schema/aop"   xsi:schemaLocation=" http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd         http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-3.0.xsd         http://www.springframework.org/schema/tx  http://www.springframework.org/schema/tx/spring-tx-3.0.xsd         http://www.springframework.org/schema/jee  http://www.springframework.org/schema/jee/spring-jee-3.0.xsd         http://www.springframework.org/schema/aop  http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">         class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">