FusionCharts的使用总结（java）

Posted 2020-06-14

由于系统原先使用的就fusioncharts，最近老板要求升级，并提供下载功能。

1. 去网上下载了最新版的FusionCharts: http://www.fusioncharts.com/。下载完成后名为：fusioncharts-suite-xt.zip
2. 可以先参考下官方入门文档，写的很详细而且有例子。各种图表都有（当然我不需要太复杂的），还要地图图表很强大（但貌似中国地图有三种，还要没

   台湾的…）

3. 具体记录以下两个重点：
   1. 下载：有两种下载方式：client and private server

      Client：下载官方文档说支持firefox和chrome但是我的chrome不行（确定chrome是最新版），但是firefox可行

      ????exportEnable:"1" //在chart熟悉中加上这句图标右上方出现下载图标 虽然实现简单（调用html5的api）,但是很多浏览器不支持

      Server:???? 我的是linux服务器（windows有一定的差异）需要Inkscape?ImageMagick?的支持，具体不同系统安装方式不同。安装成功后配置web.xml

<servlet>
					

<display-name>FCExporter</display-name>

<servlet-name>FCExporter</servlet-name>

<servlet-class>com.fusioncharts.exporter.servlet.FCExporter</servlet-class>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>FCExporter</servlet-name>

<url-pattern>/JSP/ExportExample/FCExporter</url-pattern>

</servlet-mapping>

FusionCharts中有一个java-export的文件夹里面有jar文件，导入到lib中

增加fusioncharts_export.properties:

# Please specify the path to a folder with write permissions

# The exported image/PDF files would be saved here (for Linux based server SAVEPATH should be changed to relative or absolute path accordingly)

SAVEPATH = /JSP/ExportExample/ExportedImages/

?

# This constant HTTP_URI stores the HTTP reference to

# the folder where exported charts will be saved.

# Please enter the HTTP representation of that folder

# in this constant e.g., http://www.yourdomain.com/images/

HTTP_URI = http://localhost:8081/ExportHandler/JSP/ExportExample/ExportedImages/

?

# OVERWRITEFILE sets whether the export handler would overwrite an existing file

# the newly created exported file. If it is set to false the export handler would

# not overwrite. In this case if INTELLIGENTFILENAMING is set to true the handler

# would add a suffix to the new file name. The suffix is a randomly generated UUID.

# Additionally, you can add a timestamp or random number as additional prefix.

FILESUFFIXFORMAT = TIMESTAMP

OVERWRITEFILE = false

INTELLIGENTFILENAMING = true

?

# Set the path of Inkscape here(Only for Windows)

INKSCAPE_PATH = C:\\Program Files (x86)\\Inkscape

?

# Set the path of ImageMagick here(Only for Windows)

IMAGEMAGICK_PATH = C:\\Program Files\\ImageMagick-6.9.0-Q16

在chart中：

注意exportHandler要配置到web.xml中配置的servlet url-pattern exportAction:"download"下载到client

1. 去掉fusionchart xt trial的水印logo:用js操作svg

   给body增加onload事件 onload="complete();"

   <script type="text/javascript">

   function changeTspan(){

   ????var tspans = document.getElementsByTagName(‘tspan‘);

   ????var len = tspans.length;

   ????var tp = tspans[len-1];

   ????//alert(tp.innerHTML);

   ????tp.innerHTML = ‘图1‘;

   }

   function complete(){

   ????setTimeout(

   ????????"changeTspan()",????

   ????????500

   ????);

   }

   如果当前页面有多个图这个方法要修改，但是方法一样

   具体不是很了解fusionchart的render（）方法，原先是直接在render方法后执行的，但没有效果