<Map  srs="+init=epsg:3857">
  <Style name="My Style">
    <Rule>
      <PolygonSymbolizer fill="#bee826" />
      <LineSymbolizer stroke="black" stroke-width="1" />
    </Rule>
  </Style>
  <Layer name="world" srs="+init=epsg:3857">
    <StyleName>My Style</StyleName>
    <Datasource>
      <Parameter name="file">/luojun/github/geotilesServer/test/data/world_merc.shp</Parameter>
      <Parameter name="type">shape</Parameter>
    </Datasource>
  </Layer>
</Map>