2017-05-31 69 views
0

我使用Dropwizard(V1.0.5),我想创建一个客户端连接接收一个多后服务后的Web服务。但是,我获得了“错误请求”响应。客户端和使用dropwizard

在这里,在我的pom.xml依赖

<dependencies> 
    <dependency> 
     <groupId>io.dropwizard</groupId> 
     <artifactId>dropwizard-core</artifactId> 
     <version>${dropwizard.version}</version> 
    </dependency> 
    <dependency> 
     <groupId>io.dropwizard</groupId> 
     <artifactId>dropwizard-assets</artifactId> 
     <version>${dropwizard.version}</version> 
    </dependency> 
    <dependency> 
     <groupId>io.dropwizard</groupId> 
     <artifactId>dropwizard-forms</artifactId> 
     <version>${dropwizard.version}</version> 
    </dependency> 
    <dependency> 
     <groupId>io.dropwizard</groupId> 
     <artifactId>dropwizard-client</artifactId> 
     <version>${dropwizard.version}</version> 
    </dependency> 

</dependencies> 

这里我Dropwizard应用(Client2PostApplication.java):

public class Client2PostApplication extends Application<Client2PostConfiguration> { 
public static void main(String[] args) throws Exception { 
    new Client2PostApplication().run(args); 
} 

@Override 
public void initialize(Bootstrap<Client2PostConfiguration> bootstrap) { 
    bootstrap.addBundle(new MultiPartBundle()); 
} 

@Override 
public void run(Client2PostConfiguration configuration, 
       Environment environment) throws Exception { 

    environment.jersey().register(MultiPartFeature.class); 

    final Client client = new JerseyClientBuilder(environment).using(configuration.getJerseyClientConfiguration()).build(getName()); 

    environment.jersey().register(new Client2Post(client)); 

    environment.jersey().register(new MyPostResource()); 

    } 
} 

这里我的配置(Client2PostConfiguration.java):

public class Client2PostConfiguration extends Configuration { 

    @Valid 
    @NotNull 
    private JerseyClientConfiguration jerseyClient = new JerseyClientConfiguration(); 

    @JsonProperty("jerseyClient") 
    public JerseyClientConfiguration getJerseyClientConfiguration() { 
     return jerseyClient; 
    } 
} 

而现在,后Web服务(MyPostResource.java):

@Path("/testpost") 

public class MyPostResource { 

    public MyPostResource() { 

    } 

    @POST 
    @Consumes(MediaType.MULTIPART_FORM_DATA) 
    @Timed 
    public String test(
     @FormDataParam("foo") String testData) throws IOException { 
     return testData; 
    } 
} 

最后,客户端(Client2Post.java):

@Produces(MediaType.TEXT_PLAIN) 
@Path("/client") 
public class Client2Post { 

    private Client client; 

    public Client2Post(Client client) { 
     this.client = client; 
    } 

    @GET 
    @Path("/test") 
    public String testPost() { 

    final Invocation.Builder request = client.target("http://localhost:8080/testpost").register(MultiPartFeature.class).request(); 

    final FormDataMultiPart entity = new FormDataMultiPart() 
      .field("foo", "bar"); 

    final String response = request.post(Entity.entity(entity, entity.getMediaType()), String.class); 

    return response; 

    } 
} 

我希望能够通过http://localhost:8080/client/test做出GET和接收的http://localhost:8080/testpost的答复中说,在这种情况下,将“酒吧”。但是我收到“HTTP 400错误请求”。

我在做什么错?

我怎么能考后服务?因为我正在使用Firefox插件,所以使用此多部分内容的HttpRequester:

--l3iPy71otz 
Content-Disposition: form-data; name="foo" 
bar 
--l3iPy71otz-- 

...并且我得到相同的响应。

+0

你看到任何异常检索?是否有任何消息与答复一致。没有更多的信息很难说问题是什么。代码看起来不错 –

+0

Header'Content-Disposition'后面缺少空行。尝试'卷曲-F“富=酒吧”本地主机:8080' –

+0

@peeskillet我没有得到任何异常,我认为它甚至没有进入功能testPost因为有些问题多部分的格式,但我不不知道该做什么了! – impulso

回答

0

我找到了解决我的问题https://github.com/dropwizard/dropwizard/issues/1094。对于Jersey Client中的请求来说,应该禁用分块编码以使用MIME Multipart。

所以我Client2PostApplication.java现在是:

public class Client2PostApplication extends Application<Client2PostConfiguration> { 
    public static void main(String[] args) throws Exception { 
     new Client2PostApplication().run(args); 
    } 

    @Override 
    public void initialize(Bootstrap<Client2PostConfiguration> bootstrap) { 
     bootstrap.addBundle(new MultiPartBundle()); 
    } 

    @Override 
    public void run(Client2PostConfiguration configuration, 
       Environment environment) throws Exception { 

     environment.jersey().register(MultiPartFeature.class); 
     JerseyClientConfiguration conf = configuration.getJerseyClientConfiguration(); 

     conf.setChunkedEncodingEnabled(false); //This line is new!!! 

     final Client client = new JerseyClientBuilder(environment).using(conf).build(getName()); 
     environment.jersey().register(new Client2Post(client)); 
     environment.jersey().register(new MyPostResource());  
    } 
} 

和它的作品pertectly。该代码可以在https://github.com/esparig/dwclient2post