配置GeoWebCache的步骤。除了需要准备的环境，还有geoServer的安装、发布地图、使用Udig创建SLD。这里需要用的到的一个Jar包必须准备好:geowebcache-0.8.3.war.zip。解压geowebcache-0.8.3.war.zip包。
在web.xml文件中，键入:
[xml] view plaincopyprint?
<pre class="brush:py"> <context-param>
<param-name>GEOWEBCACHE_CACHE_DIR</param-name>
<param-value>/tmp</param-value>
</context-param> </pre>
中"/tmp"是你要将切图到的地方。
创建一个layer_chengdu.properties文件,properties文件的名字可以根据你的地图内容来起名，我这里是加载成都的地图，将layer_chengdu.properties文件放入/WEB-INF/classes下。该文件内容如下：
[xml] view plaincopyprint?
<pre class="brush:py"> layername=chengdu
type=wms
wmsurl=http://localhost:8989/geoserver/wms
wmslayers=topp:Block_region,topp:PUBLIC_region,topp:Road_Regular_polyline
mimetypes=image/png,image/jpeg
srs=EPSG:4326;EPSG:900913
grid=-180.0,-90.0,180.0,90.0;103.94971885,30.5749127,104.18353815,30.7504793
bbox=-180.0,-90.0,180.0,90.0;103.94971885,30.5749127,104.18353815,30.7504793
width=256
height=256
version=1.1.0
errormime=application/vnd.ogc.se_inimage
tiled=false
transparent=true
metatiling=3x3
debugheaders=true
</pre">
创建html文件访问该地图：
[jscript] view plaincopyprint?
<pre class="brush:py"> <script type="text/javascript">
var map, layer;
function init(){
map = new OpenLayers.Map( 'map' );
map.addControl(new OpenLayers.Control.LayerSwitcher());
var bounds = new OpenLayers.Bounds(103.94971885,30.5749127,104.18353815,30.7504793);
layerpublic = new OpenLayers.Layer.WMS( "region",
"http://localhost:8989/geowebcache/service/wms?layers=chengdu",
{
layers: 'chengdu', //这里写layername的名字//srs: 'EPSG:4326',
style: '',
format: 'image/png',
tiled: false,
transparent: true
},
{
//maxExtent: bounds,
//maxResolution: 'auto',
//projection: 'EPSG:4326',
//buffer: 2,
reproject: true,
//opacity: 0.5,
isBaseLayer: true
}
);
map.addLayer(layerpublic);
map.zoomToExtent(bounds);
}
</script>
</pre>