工作流中ServiceTask的各种方法__.doc

工作流中ServiceTask的各种方法 在工作流中的activiti的serviceTask几种方法：模拟自动执行任务工作流的流程图：工作流配置：serviceTaskExpression.bpmn20.xmlXml代码 1. 2. 3. 7. 8. 9. 10. 11. 12. 13. 15. 16. 17. WelcometoBeijing 18. 19. 20. HelloMr.Bai 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 39. 40. 41. 42. 43. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. Welcome to Beijing Hello Mr. Bai 工作流的实现：Java代码 1. packagecom.easyway.activiti.servicetask; 2. 3. importorg.activiti.engine.delegate.DelegateExecution; 4. 5. /* 6. *从配置文件注入多个属性类型必须为Expression 7. *author 8. * 9. *2011-12-20下午10:08:01 10. */11. publicclassReverseStringsFieldInjectedimplementsJavaDelegate 12. 13. privateExpressiontext1; 14. privateExpressiontext2; 15. 16. publicvoidexecute(DelegateExecutionexecution) 17. Stringvalue1=(String)text1.getValue(execution); 18. execution.setVariable(var1,newStringBuffer(value1).reverse().toString(); 19. 20. Stringvalue2=(String)text2.getValue(execution); 21. execution.setVariable(var2,newStringBuffer(value2).reverse().toString(); 22. 23. package com.easyway.activiti.servicetask;import org.activiti.engine.delegate.DelegateExecution;/* * 从配置文件注入多个属性类型必须为Expression * author longgangbai * * 2011-12-20 下午10:08:01 */public class ReverseStringsFieldInjected implements JavaDelegate private Expression text1; private Expression text2; public void execute(DelegateExecution execution) String value1 = (String) text1.getValue(execution); execution.setVariable(var1, new StringBuffer(value1).reverse().toString(); String value2 = (String) text2.getValue(execution); execution.setVariable(var2, new StringBuffer(value2).reverse().toString(); Java代码 packagecom.easyway.activiti.servicetask; 1. 2. importorg.activiti.engine.delegate.DelegateExecution; 3. 4. /* 5. *从配置文件注入一个字符串用于变为写 6. *author7. * 8. *2011-12-20下午09:56:59 9. */10. publicclassToUppercaseimplementsJavaDelegate 11. privateExpressiontext; 12. publicvoidexecute(DelegateExecutionexecution)throwsException 13. Stringvalue1=(String)text.getValue(execution); 14. execution.setVariable(input,value1); 15. 16. 17. package com.easyway.activiti.servicetask;import org.activiti.engine.delegate.DelegateExecution;/* * 从配置文件注入一个字符串用于变为写 * author longgangbai * * 2011-12-20 下午09:56:59 */public class ToUppercase implements JavaDelegate private Expression text; public void execute(DelegateExecution execution) throws Exception String value1 = (String) text.getValue(execution); execution.setVariable(input, value1); servicetaskSpringTest-context.xmlXml代码 1. 2. 3. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 测试类：1. packagecom.easyway.activiti.servicetask; 2. 3. importorg.activiti.engine.runtime.ProcessInstance; 4. importorg.activiti.engine.test.Deployment; 5. importorg.activiti.spring.impl.test.SpringActivitiTestCase; 6. importorg.springframework.test.context.ContextConfiguration; 7. 8. /* 9. *工作流中ServiceTask的各种方法 10. *1.通过activiti:class使用相关的javaDelegate的子类。 11. * 13. 14. 15. WelcometoBeijing 16. 17. 18. HelloMr.Bai 19. 20. 21. 22. 2.通过spring的使用委派表达式实现 23. 24. 3.通过表达式将实现 25. 28. 29. 4.通过activiti:class注入相关的属性 30. 33. 34. 35. 36. 37. /*author38. * 39. *2011-12-20下午09:29:23 40. */41. ContextConfiguration(classpath:servicetaskSpringTest-context.xml) 42. publicclassServiceTaskExpressionTestextendsSpringActivitiTestCase 43. 44. Deployment(resources=diagrams/serviceTaskExpression.bpmn20.xml) 45. publicvoidtestDelegateExpression() 46. ProcessInstanceprocInst=runtimeService.startProcessInstanceByKey(serviceTaskProcess); 47. assertEquals(true,procInst.isEnded(); 48. 49. 50. package com.easyway.activiti.servicetask;import org.activiti.engine.runtime.ProcessInstance;import org.activiti.engine.test.Deployment;import org.activiti.spring.impl.test.SpringActivitiTestCase;import org.springframework.test.context.ContextConfiguration;/* * 工作流中ServiceTask的各种方法 * 1.通过activiti:class使用相关的javaDelegate的子类。 * Welcome to Beijing Hello Mr. Bai 2.通过spring的使用委派表达式实现 3.通过表达式将实现 4.通过activiti:class注入相关的属性 * author longgangbai * * 2011-12-20 下午09:29:23 */ContextConfiguration(classpath:servicetaskSpringTest-context.xml)public class ServiceTaskExpressionTest extends SpringActivitiTestCase Deplo