Analysis and solution of Chinese garbled characters in HTML hyperlinks

A hyperlink URL in Vm needs to be concatenated with Chinese as a parameter of the Get request. If you splice directly, the parameter object passed to the background Action will be garbled when retrieved, and needs to be encoded before splicing into the URL.
The solution is to add a member variable in Action to save the encoded Chinese parameters. When the vm page is rendered, take out the variable value and then splice the hyperlink.

The problem encountered here is : when calling the encode() method of java.net.URLEncoder, if the character set parameter is not explicitly specified, URLEncoder will use the default character set. This default character set produces different results when running the main() method in Eclipse and the Web application in Tomcat, which affects the encoding results.

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The code is as follows:

/**
* Translates a string into <code>x-www-form-urlencoded</code>
* format. This method uses the platform's default encoding
* as the encoding scheme to obtain the bytes for unsafe characters.
*
* @param s <code>String</code> to be translated.
* @deprecated The resulting string may vary depending on the platform's
* default encoding. Instead, use theencode(String,String)
* method to specify the encoding.
* @return the translated <code>String</code>.
*/
@Deprecated
public static String encode(String s) {
String str = null;
try {
str = encode(s, dfltEncName);
} catch(UnsupportedEncodingException e) {
// The system should always have the platform default
}
return str;
}

The method's comments also state that the reason it is not recommended is that the encode(String) method depends on the platform character set.

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