GEOSERVER多个图层一起显示

在Geoserver中做好发布后，多个图层显示，通过在Layers中增加参数，加逗号，如下面红色部分：

http://localhost:8080/geoserver/china/wms?service=WMS&version=1.1.0&request=GetMap &layers=china:mysqlprovince_region&styles=&bbox=72.0,16.0,144.0,56.0&width=594
&height=330&srs=EPSG:4326&format=application/openlayers

http://localhost:8080/geoserver/china/wms?service=WMS&version=1.1.0&request=GetMap &layers=china:mysqlprovince_region,china:mysqlprovince_point&styles=&bbox=72.0,16.0,144.0,56.0&width=594
&height=330&srs=EPSG:4326&format=application/openlayers


可以新建图层组，然后用下面信息
http://localhost:8080/geoserver/china/wms?service=WMS&version=1.1.0&request=GetMap &layers=mysqlchina&styles=&bbox=72.0,16.0,144.0,56.0&width=594&height=330&srs=EPSG:4326&format=application/openlayers