CODEWITHSUNDEEP
javaspringtomcatspring-mvccharacter-encoding
talha06
talha06

Reputation: 6466

Spring MVC 3.1 - Request Header Character Encoding issue [UTF-8]

I'm trying to get file name from request header, I'm getting character encoding problem despite I have defined Spring encoding filter in my web.xml.

String fileName = request.getHeader("X-File-Name"); // wrong encoding

web.xml

        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

Also I've added URIEncoding="UTF-8" config into Tomcat server.xml file. And added same config JAVA_OPTS too.

-DuriEncoding=UTF-8 -Dfile.encoding=UTF-8

Upvotes: 0

Views: 4980

Answers (2)

Esailija
Esailija

Reputation: 140220

Well if the headers are always in UTF-8 (or ascii otherwise), you could do this:

public static String reEncode( String input ) {
    Charset w1252 = Charset.forName("Windows-1252"); //Superset of ISO-8859-1
    Charset utf8 = Charset.forName("UTF-8");
    return new String(input.getBytes(w1252), utf8 );
}

...

String fileName = reEncode("Mekanizması.pdf"); //request.getHeader("X-File-Name")
System.out.println(fileName); //Mekanizması.pdf

Upvotes: 1

Michael-O
Michael-O

Reputation: 18405

There is no encoding defined for HTTP headers. Expect them to support at most ISO-8859-1. Better rely on US-ASCII. The param is, as the name says, for URIs and their params. Nothing else.

Upvotes: 0

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