jQuery not POSTing URL arguments to Jersey service?

问题

This seems so simple, but I can't figure out why it doesn't work.

I have a Jersey service defined:

@POST
public SomeObject createSomeObject(
    @QueryParam("firstParam") String firstParam,
    @QueryParam("secondParam") String secondParam)
{
    // Does stuff, returns the object.
}

Now, if I do a simple curl, it works fine:

curl -X POST "http://localhost:8080/path/to/service?firstParam=Bleh&secondParam=Blah

However, the following results in null for firstParam and secondParam in the Java:

$.ajax({
    url: '/path/to/service',
    type: 'POST',
    data: {
        firstParam: 'Bleh',
        secondParam: 'Blah'
    },
    success: doStuff,
    error: eek
});

This seems ridiculously straight-forward. I feel they should behave exactly the same. What am I missing? Things I've tried (but don't seem necessary):

Adding contentType: 'application/x-www-form-urlencoded' to the ajax call.
Adding @Consumes(MediaType.APPLICATION_FORM_URLENCODED) to the Jersey service.
Wrapping the data object with JSON.stringify (I know I need to do that when contentType: 'json', but shouldn't have to here.

I know I can code the URL parameters myself and stuff 'em in the URL, but that seems inelegant and I shouldn't have to do that.

回答1:

If you send multiple params using POST, you've to do a application/x-www-form-urlencoded POST, that way the params are encoded in the request like:

firstParam=Bleh&secondParam=Blah

But, to consume theese params you have to annotate the function params like:

@POST
public SomeObject createSomeObject(@FormParam("firstParam") String firstParam,
                                   @FormParam("secondParam") String secondParam) {
    // Does stuff, returns the object.
}

pay attention in that the annotation is @FormParam instead of @QueryParam

Note that if you do a "normal" POST, your function can only have one param to receive de POSTed data (appart from the params assigned from query string url params)

回答2:

$.ajax({
        type: "POST",
        contentType: "application/x-www-form-urlencoded;charset=utf-8",
        url: url,
        data: data,
        dataType: 'json',
        timeout: 3000,
        // jsonpCallback:"foo",
        success:function(response){
            console.log(response);              
        },
        error: function(){
            console.log("error!");
        }
    });

Above is a jquery request and just as @futuretelematics said we need contentType: "application/x-www-form-urlencoded;charset=utf-8". And then add @Consumes( {MediaType.APPLICATION_FORM_URLENCODED}) in the Jersey service.

@POST
@Produces({ MediaType.APPLICATION_JSON})
@Consumes( {MediaType.APPLICATION_FORM_URLENCODED})
public String execute(@FormParam("stoYardName") String data,
                       @FormParam("domTree") String domTree
                                    ) {
            .........

};

来源：https://stackoverflow.com/questions/16704042/jquery-not-posting-url-arguments-to-jersey-service

标签

jquery

ajax

jersey