In JAX-RS, for excel file, annotate the method with @Produces("application/vnd.ms-excel") :

  1. Put @Produces(“application/vnd.ms-excel”) on service method.
  2. Set “Content-Disposition” in Response header to prompt a download box.

1. Download Excel file in JAX-RS

Full example to download an excel file from JAX-RS.

import java.io.File;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
 
@Path("/excel")
public class ExcelService {
 
	private static final String FILE_PATH = "c:\\excel-file.xls";
 
	@GET
	@Path("/get")
	@Produces("application/vnd.ms-excel")
	public Response getFile() {
 
		File file = new File(FILE_PATH);
 
		ResponseBuilder response = Response.ok((Object) file);
		response.header("Content-Disposition",
			"attachment; filename=new-excel-file.xls");
		return response.build();
 
	}
 
}

2. Demo

Access this URI pattern : “/excel/get“.

Figure : Excel file “c:\\excel-file.xls” from server is prompted for user to download, with a new file name “new-excel-file.xls

download excel file from server

Download Source Code

References

  1. JAX-RS @Produces JavaDoc
  2. list of the Application types
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