浏览器端如何查询显示本地的栅格文件

谢邀，假如是arcgis for js开发形式的话，你可以通过arcgisserver发布地图服务形式来调用，展示在地图上显示的，直接解析栅格文件这个我没弄过呢

目前支持把本地的jpg/png图片显示到地图上，当作一个图层，可以随地图放大缩小等，和一个图层是一样的。只要知道jpg的四角坐标就可以了。

你这个功能听你描述来看可以用动态图层来实现。你先发布一个地图服务，然后可以根据你的查询结果更换地图服务中的栅格图层。下面这段是我从ArGIS server的帮助中摘出来的，请看看是否能满足的你的需求。
Dynamic layers

Dynamic layers allow clients to change layer appearance and behavior on the fly in a map service. Using dynamic layers, you can do the following:

Add new layers to the map from a dynamic workspace.
Define how the labels will draw for a layer.
Define layer symbology (simple, unique value, class breaks).
Define the position and order of layers in the map.
Modify joins to an existing layer/table.
Remove an existing layer from the map.
Add joins to an existing layer/table or add a layer/table that originates from a dynamic workspace.
Force the server to perform a dynamic draw even if a tile cache is available.

Dynamic layers are supported by REST, COM, and non-Esri SOAP clients. Data sources that you can register as a dynamic workspace include the following:

Database (query layers only)
File geodatabase (feature layers, raster layers, and tables only)
Folder containing file-based rasters
Folder containing shapefiles or .dbf files
Geodatabase (feature layers, raster layers, query layers, and tables only)