arcgis api for javascript Chinese garbled characters

In the process of using ArcGIS API for JavaScript, sometimes garbled Chinese characters appear, which causes us some trouble. This article will discuss this issue and provide corresponding solutions.

1. Causes

First of all, let’s understand why Chinese garbled characters appear. This question mainly involves the issue of encoding format. In different operating systems, different browsers, and different servers, the encoding format is different. When the encoding format is incompatible, it will lead to the problem of Chinese garbled characters.

The main reason why Chinese garbled characters appear in ArcGIS API for JavaScript is that the API itself uses UTF-8 encoding format by default. But in some cases, we need to convert Chinese into other encoding formats such as GBK or GB2312. At this time, you need to make corresponding settings to correctly display the Chinese character set.

2. Solution

1. Modify the API configuration file

First, we need to open the API configuration file dojoConfig.js and find the "locale" Configuration items. Set it to the corresponding locale language identifier (e.g. "zh-cn" for Simplified Chinese). At this time, if the Chinese garbled problem still occurs, we need to continue setting up and add the following code to the configuration file:

var dojoConfig = {
    ...
    locale: 'zh-cn',
    ...
};

require(["dojo/_base/xhr", "dojo/dom-construct"], function(xhr, domConstruct){
    xhr.get({
        url: "dojo/nls/dojo_zh-cn.js",
        load: function(data){
            domConstruct.create("script", {
                type: "text/javascript",
                text: data
            }, document.body);
        }
    });
});

This code defines a function to load the configuration file corresponding to "zh-cn" Come in to ensure that the API can display the Chinese character set correctly.

2. Compatible with URL encoding

When using the API, we often need to URL-encode the Chinese character set to ensure the reliability of data during network transmission. Usually, we use encodeURI() for URL encoding. However, in some cases, the encodeURI() method is incompatible with Chinese character set processing, which may cause garbled characters. At this time, we need to consider using the encodeURIComponent() method.

3. Modify the Web server encoding format

In the Web server, the default encoding format is usually set. If the encoding format of the server is inconsistent with the encoding format of the API, it will cause garbled Chinese characters. Therefore, we need to configure the web server accordingly and set the correct encoding format. Normally, we need to set the encoding format of the web server to UTF-8 to ensure that the API can correctly display the Chinese character set.

4. Add the tag to the head of the HTML document

In the HTML document, we can add the tag to the head of the document. Set the correct character set encoding. For example, we can add the following code to the document header:

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

At this time, the HTML document will be parsed in UTF-8 encoding format, thereby correctly displaying the Chinese character set.

Summary

Through the above methods, we can solve the problem of Chinese garbled characters in ArcGIS API for JavaScript. When performing related operations, we need to pay attention to the differences in encoding formats of different operating systems and browsers, and make corresponding settings to ensure that the API can correctly display the Chinese character set.

The above is the detailed content of arcgis api for javascript Chinese garbled characters. For more information, please follow other related articles on the PHP Chinese website!