How can I pass string path param containing slash character?

Reserved characters such as , and / must be URL encoded.

• , is encoded as %2C
• / is encoded as %2F

Try http://ip:port/samples/2000%2C2006%2C6576%2FM982.

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The RFC 3986 defines the following set of reserved characters that can be used as delimiters. Hence, they require URL encoding:

: / ? # / [ ] / @ ! $ & ' ( ) * + , ; =

Unreserved characters do not require URL encoding:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z
0 1 2 3 4 5 6 7 8 9 - _ . ~

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If URL encoding , is not a good alternative for you, you could consider using query parameters. Your code will be like:

@GET
@Produces(MediaType.APPLICATION_JSON)
public Response getSample(@QueryParam("business") String business, 
                          @QueryParam("year") String year,
                          @QueryParam("sample") String sampleId {
    ...
}

And your URL will be like http://ip:port/samples?business=2000&year=2006&sample=6576%2FM982.

Please note that the / still needs to be URL encoded.

Actually, .+ helped. Just that it needs to be part of @Path but not @PathParam.

Example:

@Path("{sample:.+}")

Try to use {sample:.+} instead of {sample}

The @Path annotation is a regular expression and regex do not match / character.

To override the regex, we can add .+ at the end of the PathParam.

In this way we can allow / in our path and avoid using %2F.