geoserver动态颜色参数样式、动态sql配置实现
动态颜色参数样式、动态sql
访问方式：
http://localhost:20011/geoserver/gzzjygis/wms?service=WMS&version=1.1.0&request=GetMap&layers=layername&bbox=103.804856%2C24.869804%2C109.336088%2C29.12673&width=768&height=591&srs=EPSG%3A4326&format=application/openlayers&viewparams=paramcolor:00ff00;type:A
样式设置：
<?xml version="1.0"encoding="UTF-8"?>
xsi:schemaLocation="http://www.opengis.net/sld StyledLayerDescriptor.xsd"
xmlns="http://www.opengis.net/sld"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!-- a Named Layer is the basic building block of an SLD document -->
default_point
<!-- Styles can have names, titles and abstracts -->
Default Point
A sample style that draws a point
<!-- FeatureTypeStyles describe how to render different features -->
<!-- A FeatureTypeStyle for rendering points -->
rule1
Red Square
A 6 pixel square with a red fill and no stroke
circle
paramcolor
6
视图sql设置：
select dataid, dataname,d.the_geom,'#%paramcolor%' as paramcolor from d
where apt_code ='%type%'
提取 paramcolor和type为动态参数
