Activiti 5.16 流程图片生成的中文乱码问题

工作流引擎activiti5.16，绘制的流程图中文乱码问题。

解决方法一：

1.在activiti.cfg.xml增加配置

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<!-- 生成流程图的字体 -->

<property name="activityFontName" value="宋体"/>

<property name="labelFontName" value="宋体"/>

2.中文乱码，研究了一下源码，发现居然不设置参数，直接调用png方法，字体就是默认的Arial字体，郁闷了半天，不想改原始程序，又找到个稍微麻烦点的方法

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processEngine.getProcessEngineConfiguration().getProcessDiagramGenerator()

    .generateDiagram(bpmnModel, "png", 

                     processEngine.getProcessEngineConfiguration().getActivityFontName(),

                     processEngine.getProcessEngineConfiguration().getLabelFontName(), 

                     processEngine.getProcessEngineConfiguration().getClassLoader(),1.0);

解决方法二：

1.复制源码org.activiti.image.impl.DefaultProcessDiagramCanvas,在工程下新增此类，并把修改变量。

  protected String activityFontName = "宋体";
  protected String labelFontName = "宋体";

解决方法三：

1.在获取活动节点的流程图时用方法：

    ExecutionEntityManager executionEntityManager = commandContext.getExecutionEntityManager();    ExecutionEntity executionEntity = executionEntityManager.findExecutionById(processInstanceId);    List<String> activiityIds = executionEntity.findActiveActivityIds();    String processDefinitionId = executionEntity.getProcessDefinitionId();    GetBpmnModelCmd getBpmnModelCmd = new GetBpmnModelCmd(processDefinitionId);    BpmnModel bpmnModel = getBpmnModelCmd.execute(commandContext);    ProcessDiagramGenerator procDiaGenerator = new DefaultProcessDiagramGenerator();    InputStream is = procDiaGenerator.generateDiagram(    bpmnModel,     "png",     activiityIds,     new ArrayList<String>(),     "宋体",     "宋体",     null,     1.0);