plantUML笔记

plantUML是在markdown语法上实现绘制uml图的工具

绘制流程图的笔记

• 流程标签(activity label)以冒号开始，以分号结束,例如：
  　:第一步;
• 使用关键字start和stop表示图示的开始和结束。
  @startuml
  start
  :Hello world;
  :This is on defined on
  several lines;
  stop
  @enduml

• 使用关键字if，then和else设置分支测试。标注文字则放在括号中.
  @startuml
  start
  if (Graphviz installed?) then (yes)
  :process all\ndiagrams;
  else (no)
  :process only
  sequence and activity diagrams;
  endif
  stop
  @enduml

• 使用关键字repeat和repeatwhile进行重复循环
  @startuml
  start
  repeat
  :read data;
  :generate diagrams;
  repeat while (more data?)
  stop
  @enduml

• 使用关键字while和end while进行while循环
  @startuml
  start
  while (data available?)
  :read data;
  :generate diagrams;
  endwhile
  stop
  @enduml

• 还可以在关键字endwhile后添加标注，还有一种方式是使用关键字is。
  @startuml
  while (check filesize ?) is (not empty)
  :read file;
  endwhile (empty)
  :close file;
  @enduml

• 使用关键字fork，fork again和end fork表示并行处理。
  @startuml
  start
  if (multiprocessor?) then (yes)
  fork
  :Treatment 1;
  fork again
  :Treatment 2;
  end fork
  else (monoproc)
  :Treatment 1;
  :Treatment 2;
  endif
  @enduml

• 注释note right|left xxxx note end
  @startuml
  start
  :foo1;
  floating note left: This is a note
  :foo2;
  note right
  This note is on several
  //lines// and can

  contain HTML

• Calling the method “”foo()”” is prohibited
  end note
  stop
  @enduml

• 为活动(activity)指定一种颜色
  @startuml
  start
  :starting progress;
  #HotPink:reading configuration files
  These files should edited at this point!;
  #AAAAAA:ending of the process;
  @enduml

• 使用->标记，你可以给箭头添加文字或者修改箭头颜色
  @startuml
  :foo1;

• You can put text on arrows;
  if (test) then

• [#blue]->
  :foo2;
• [#green,dashed]-> The text can
  also be on several lines
  and very long…;
  :foo3;
  else
• [#black,dotted]->
  :foo4;
  endif
• [#gray,bold]->
  :foo5;
  @enduml

• 使用管道符|来定义泳道,还可以改变泳道的颜色。
  @startuml
  |Swimlane1|
  start
  :foo1;
  |#AntiqueWhite|Swimlane2|
  :foo2;
  :foo3;
  |Swimlane1|
  :foo4;
  |Swimlane2|
  :foo5;
  stop
  @enduml

一个完整的例子

@startuml
start
:ClickServlet.handleRequest();
:new page;
if (Page.onSecurityCheck) then (true)
:Page.onInit();
if (isForward?) then (no)
:Process controls;
if (continue processing?) then (no)
stop
endif
if (isPost?) then (yes)
:Page.onPost();
else (no)
:Page.onGet();
endif
:Page.onRender();
endif
else (false)
endif
if (do redirect?) then (yes)
:redirect process;
else
if (do forward?) then (yes)
:Forward request;
else (no)
:Render page template;
endif
endif
stop
@enduml