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ArcGIS for JavaScript学习（一）

2024-09-14 17:24:47   217人阅读

一  API准备

  1. 从网上下载开发包：ArcGIS for JavaScript（百度网盘地址）

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       sdk中含有API的帮助和例子 

      2.离线部署（以IIS为例）

          配置IIS（详见网络）；解压离线包，包中的install_SDK.html/install_API.html文件含有详细的部署过程。

二 第一个应用程序

  1. 使用在线api

        (1)创建简单的html文档    

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
    <title></title>
  </head>
</html>

    (2)在<head>中引入样式表和ArcGIS for JavaScript

<link rel="stylesheet" href="https://js.arcgis.com/3.17/esri/css/esri.css">
<script src="https://js.arcgis.com/3.17/"></script>

    (3)定义页面内容

<body class="claro">
  <div id="mapDiv"></div>
</body>

   (4)在<head>中加载地图

   <script>
        var map;
        require(["esri/map", "dojo/domReady!"], function(Map) {
          map = new Map("mapDiv", {
            center: [-56.049, 38.485],
            zoom: 3,
            basemap: "streets"
          });
        });
   </script>

   (5)设置样式，在<head>中加入如下代码：

<style>
  html, body, #mapDiv {
    padding: 0;
    margin: 0;
    height: 100%;
  }
</style>

   完整代码如下：

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
    <title>hello world</title>
    <link rel="stylesheet" href="https://js.arcgis.com/3.17/esri/css/esri.css">
    <style>
        html, body, #mapDiv {
            padding: 0;
            margin: 0;
           height: 100%;
        }
</style>
    <script src="https://js.arcgis.com/3.17/"></script>
    <script>
        var map;
        require(["esri/map", "dojo/domReady!"], function(Map) {
          map = new Map("mapDiv", {
            center: [-56.049, 38.485],
            zoom: 3,
            basemap: "streets"
          });
        });
   </script>
  </head>
  <body class="claro">
    <div id="mapDiv"></div>
  </body>
</html>

运行效果如图：

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     2 使用离线api

       将样式表和ArcGIS for JavaScript替换为本地部署的api(由于部署位置不同代码仅供参考)

<link rel="stylesheet" href="http://localhost:8080/arcgis_js_api/library/3.17/3.17/esri/css/esri.css">
<script src="http://localhost:8080/arcgis_js_api/library/3.17/3.17/init.js"></script>

     3 加载中国地图， 完整代码如下：

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
    <title>hello world</title>
    <link rel="stylesheet" href="http://localhost:8080/arcgis_js_api/library/3.17/3.17/esri/css/esri.css">
    <style>
        html, body, #mapDiv {
            padding: 0;
            margin: 0;
           height: 100%;
        }
</style>
    <script src="http://localhost:8080/arcgis_js_api/library/3.17/3.17/init.js"></script>
    <script>
        var map;
        require(["esri/map", "esri/layers/ArcGISTiledMapServiceLayer","dojo/domReady!"], function(Map,ArcGISTiledMapServiceLayer){
          map = new Map("mapDiv");
          var agoServiceURL ="http://cache1.arcgisonline.cn/arcgis/rest/services/ChinaOnlineCommunity/MapServer";
          var tileMap=new ArcGISTiledMapServiceLayer(agoServiceURL);
          map.addLayer(tileMap);
        });    
   </script>
  </head>
  <body>
    <div id="mapDiv"></div>
  </body>
</html>

运行效果如图：

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ArcGIS for JavaScript学习（一）


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