POST JSON与Jersey REST服务的问题

Question

将JSON发布到Jersey REST服务时遇到问题 - GET工作正常,但POST看起来很棘手.我一直在研究这个问题,到目前为止还没有解决方案.任何帮助深表感谢!

它似乎无法找到U RL发送json？这是FireBug控制台显示的内容:

    POST http://localhost:9998/data 400 Bad Request
    Post source: name=Tony
    **Response Headers**
    Connection  close
    Content-Length  0
    Content-Type    text/html; charset=iso-8859-1
    Date    Fri, 20 Apr 2012 10:13:24 GMT
    **Request Headers**
    Accept  application/json, text/javascript, */*; q=0.01
    Accept-Encoding gzip, deflate
    Accept-Language sv-se,sv;q=0.8,en-us;q=0.5,en;q=0.3
    Connection  keep-alive
    Content-Length  9
    Content-Type    application/json; charset=UTF-8
    Host    localhost:9998
    Referer http://localhost:9998/static/page.html
    User-Agent  Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0) Gecko/20100101 Firefox/11.0
    X-Requested-With    XMLHttpRequest

我按照以下方式进行POST:

<button id='btn' value="knapp" name="knapp" />
    <script type="text/javascript">
    $('#btn').click(function(){
        $.ajax({
            url: '/data',
            type: 'POST',
            contentType: 'application/json',
            data: {name:"Tony"},
            dataType: 'json'
        });
    })
</script>

带有@XmlRootElement的Javabean类:

@XmlRootElement
public class StatusBean {
    private String name;

    public StatusBean() {
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

资源方法:

@Path("/data")
public class PostData {
    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public StatusBean post(StatusBean sb) {
        System.out.println(sb);
        return sb;
    }
}

服务器,与Grizzly一起设置:

public class Main {
    public static final URI BASE_URI = getBaseURI();

    public static void main(String[] args) throws IOException {
        HttpServer httpServer = startServer();

        Map<String,String> initParams = new HashMap<String, String>();
        initParams.put("com.sun.jersey.config.property.packages", "server");
        SelectorThread selector = GrizzlyWebContainerFactory.create("http://localhost:9998/", initParams );

        System.out.println(String.format("Jersey app started with WADL available at "
                + "%sapplication.wadl\nTry out %shelloworld\nHit enter to stop it...",
                BASE_URI, BASE_URI));

        System.in.read();
        httpServer.stop();
    }

    protected static HttpServer startServer() throws IOException {
        System.out.println("Starting grizzly...");

        ClassNamesResourceConfig rc = new ClassNamesResourceConfig(PostData.class);

//        rc.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, true);

        HttpServer server = GrizzlyServerFactory.createHttpServer(BASE_URI, rc);

        server.getServerConfiguration().addHttpHandler(new StaticHttpHandler(new File(".").getAbsolutePath()), "/static");

        return server;
    }

    private static int getPort(int defaultPort) {
        String port = System.getProperty("jersey.test.port");
        if (null != port) {
            try {
                return Integer.parseInt(port);
            } catch (NumberFormatException e) {
            }
        }
        return defaultPort;
    }

    private static URI getBaseURI() {
        return UriBuilder.fromUri("http://localhost/").port(getPort(9998)).build();
    }
}

Answer 1

您确定要发布的路径是完整的吗？您应该在该方法上定义另一个Path注释post，并在您要发布到的 URL 中使用该注释：

@Path("/data")
public class PostData {
    @Path("/postStatus")
    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public StatusBean post(StatusBean sb) {
        System.out.println(sb);
        return sb;
    }
}

然后使用该/data/postStatus路径将您的请求发布到：

<button id='btn' value="knapp" name="knapp" />
<script type="text/javascript">
    $('#btn').click(function(){
        $.ajax({
            url: '/data/postStatus',

            type: 'POST',
            contentType: 'application/json',
            data: {name:"Tony"},
            dataType: 'json'
        });
    })
</script>