Activiti生成流程图错误解决(java.awt.image.RasterFromatException)
Activiti生成流程图异常解决(java.awt.image.RasterFromatException)
Activiti生成流程图代码:
ProcessDefinitionEntity p = (ProcessDefinitionEntity)repositoryService .createProcessDefinitionQuery() .processDefinitionId("test:2:13708") .singleResult(); InputStream in = ProcessDiagramGenerator.generateDiagram(p,"png", Arrays.asList("usertask1"));
抛出异常:
java.awt.image.RasterFormatException: (x + width) is outside raster
at sun.awt.image.IntegerInterleavedRaster.createWritableChild(Unknown Source) at java.awt.image.BufferedImage.getSubimage(Unknown Source) at org.activiti.engine.impl.bpmn.diagram.ProcessDiagramCanvas.generateImage(ProcessDiagramCanvas.java:168) at org.activiti.engine.impl.bpmn.diagram.ProcessDiagramGenerator.generateDiagram(ProcessDiagramGenerator.java:236) at com.iyspace.test.BaseTest.genPng(BaseTest.java:172) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74) at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82) at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
解决方法: 将RepositoryService 转换为 RepositoryServiceImpl 对象 通过该对象的 getDeployedProcessDefinition方法来获取流程定义
RepositoryServiceImpl imp = (RepositoryServiceImpl)repositoryService; ProcessDefinitionEntity entity2 = (ProcessDefinitionEntity)imp.getDeployedProcessDefinition("test:2:13708"); InputStream in = ProcessDiagramGenerator.generateDiagram(p,"png", Arrays.asList("usertask1"));
Activit版本 5.8