基于SQLite+HTML5 Canvas的动态图形输出嵌入式Web服务  

Dynamic Graphic Output Embedded Web Service Based on SQLite+HTML5 Canvas

作　　者：穆红显 刘亮 赵汝峰 MU Hongxian;LIU Liang;ZHAO Rufeng(CETC Satellite Navigation Operation&Service Co.,Ltd.,Shijiazhuang 050200,China)

机构地区：[1]中电科卫星导航运营服务有限公司,河北石家庄050200

出　　处：《现代信息科技》2020年第16期78-81,共4页Modern Information Technology

摘　　要：针对嵌入式Web服务器对资源和数据处理能力有限的特点,为了解决在嵌入式Web中输出如折线图等具有交互能力的动态图形问题,首先分析了FLASH、VML、SVG以及Java Applet等技术的不足,提出一种基于HTML5 Canvas绘制动态图形的瘦服务器思想,通过CGI程序与SQLite数据库交互实现图形的动态输出,并给出实例验证,为基于嵌入式Web服务器的动态图形输出提供一种解决思路。In view of the limited resources and data processing capacity of embedded Web server,in order to solve the problem of interactive dynamic graphics such as line graph output in embedded Web,this paper first analyzes the shortcomings of FLASH,VML,SVG and Java Applet technologies,and proposes a thin server idea of drawing dynamic graphics based on HTML5 canvas.The dynamic output of graphics is realized through the interaction between CGI program and SQLite database.An example is given to verify the idea,which provides a solution for dynamic graphics output based on embedded Web server.

关 键 词：嵌入式Web Canvas标签 SQLITE数据库 动态图形 瘦服务器 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]