Obtaining raw request body in JAX-RS resource meth

问题:

How can I access the raw request body from a JAX-RS resource method, as java.io.InputStream or byte[]? I want the container to bypass any MessageBodyReader for a specific resource class or method, but I have other resources in the projects which should be using some MessageBodyReader.

I have tried this, but it will invoke registered MessageBodyReaders and fail to assign the result to InputStream (same issue with byte[]).

@POST
public Response post(@Context HttpHeaders headers, InputStream requestBody) {
    MediaType contentType = headers.getMediaType();
    // ... 
}

I have also tried this, but then the container fails to initialize with this error:

SEVERE: The following errors and warnings have been detected with resource and/or provider classes:
SEVERE: Missing dependency for method public javax.ws.rs.core.Response SomeResource.post(javax.servlet.http.HttpServletRequest) at parameter at index 0
SEVERE: Method, public javax.ws.rs.core.Response SomeResource.post(javax.servlet.http.HttpServletRequest), annotated with POST of resource, class SomeResource, is not recognized as valid resource method.

@POST
public Response post(@Context HttpServletRequest request) {
    String contentType = request.getContentType();
    InputStream requestBody = request.getInputStream();
    // ... 
}

The method is in a sub resource class, which is created from a method with a @Path annotation in another resource class.

I am using Jersey 1.11.

回答1:

just incase this helps anyone

public Response doAThing(@Context HttpServletRequest request, InputStream requestBody){


        BufferedReader reader = new BufferedReader(new InputStreamReader(requestBody));
        StringBuilder out = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            out.append(line);
        }
        System.out.println(out.toString());   //Prints the string content read from input stream
        reader.close();

        return Response.ok().entity("{\"Submit\": \"Success\"}").build();

    }

回答2:

This works for me:

@POST
@Consumes(MediaType.WILDCARD)
@Produces(MediaType.WILDCARD)
public Response doSomething(@Context HttpServletRequest request, byte[] input) {
    log.debug("Content-Type: {}", request.getContentType());
    log.debug("Preferred output: {}", request.getHeader(HttpHeaders.ACCEPT));
}

回答3:

I found the reason that injecting HttpServletRequest did not work, it's because I did run my code in Jersey Test Framework, not within a proper Servlet container. It works if I run it in a proper Servlet container.

It is a pity that there is no pure JAX-RS way of getting the raw request body.