我试图在休息WS(CXF 3.1.2)中返回POJO类对客户端的引用,如下所示,
服务方法声明:
@POST
@Produces(MediaType.APPLICATION_JSON)
@Consumes({"application/xml", MediaType.TEXT_PLAIN})
@Path("/agentLogout")
public ResponseEvent agentLogout(String ext) {
ResponseEvent response= new ResponseEvent();
response.setDn(ext);
return response;
}
客户代码:
WebClient client = WebClient.create(REST_URI);
client.path("agentLogout").accept(MediaType.APPLICATION_JSON);
Response agentLogoutResponse = client.post("3101");
String responseStr=agentLogoutResponse.readEntity();
POJO:
public class ResponseEvent {
private String dn;
public String getDn() {
return dn;
}
public void setDn(String ext) {
this.dn=ext;
}
}
问题:
我如何在客户端代码中检索/访问返回的引用?
String responseStr = agentLogoutResponse.readEntity(); //我是否也需要在客户端代码中创建pojo类/接口..?
此POJO引用是否在CXF中呈现为JSON?如果是这样我们如何在客户端代码中使用它?
谢谢,
答案 0 :(得分:1)
1)您可能希望在服务器端拥有MessageBodyWriter<ResponseEvent>
。您可能需要register此@Provider
。这将使您的POJO能够写入服务器的输出流。例如(未经测试):
@Provider
class ResponseEventWriter implements MessageBodyWriter<ResponseEvent> {
@Override
public boolean isWriteable(Class<?> type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return true;
}
@Override
public long getSize(ResponseEvent t, Class<?> type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return t.getDn().length();
}
@Override
public void writeTo(ResponseEvent t, Class<?> type, Type genericType,
Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, Object> httpHeaders,
OutputStream entityStream) throws IOException,
WebApplicationException {
entityStream.write(t.getDn().getBytes());
}
}
2)您需要在客户端拥有MessageBodyReader<ResponseEvent>
。
例如:
@Provider
public class ResponseEventReader implements MessageBodyReader<ResponseEvent> {
@Override
public boolean isReadable(Class<?> type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return true;
}
@Override
public ResponseEvent readFrom(Class<ResponseEvent> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, String> httpHeaders, InputStream entityStream)
throws IOException, WebApplicationException {
StringBuilder sb = new StringBuilder();
try(InputStreamReader isr = new InputStreamReader(entityStream)) {
char[] c = new char[1];
while (isr.read(c) != -1)
sb.append(c);
} catch (IOException e) {
//do something
}
ResponseEvent event = new ResponseEvent();
event.setDn(sb.toString());
return event;
}
}
您需要在客户端注册此提供商。例如,使用JAXRS client代替cxf客户端(从cxf 3开始可用),例如使用以下内容执行此操作:
Client client = ClientBuilder.newClient();
client = client.register(ResponseEventReader.class);
Response agentLogoutResponse = client.target(/*whateveryourpath + */ "agentLogout")
.request().accept(MediaType.APPLICATION_JSON)
.buildPost(Entity.text("1301")).invoke();
然后您可以将您的实体视为
ResponseEvent event = agentLogoutResponse.readEntity(ResponseEvent.class);
答案 1 :(得分:1)
假设您已在客户端创建了界面(可以使用WADL2Java插件自动生成)。
public interface MyService{
@POST
@Produces(MediaType.APPLICATION_JSON)
@Consumes({"application/xml", MediaType.TEXT_PLAIN})
@Path("/agentLogout")
public ResponseEvent agentLogout(String ext);
}
创建单例类和创建服务实例
public class CxfRestSingleton {
public static GenService obj;
public static GenService getInstance() {
if (obj == null) {
obj = JAXRSClientFactory.create("http://localhost:8080/api/hello", MyService.class, Arrays.asList(new JacksonJaxbJsonProvider()));
}
return obj;
}
}
**注意:**我在这里使用Jackson JAXB JSON proivder,它可以编组/解组xml和JSON,您可以使用您选择的提供程序。 Jackson提供程序不是cxf的一部分,因此您需要单独包含这些依赖项
你可以访问你的pojo类,如下所示
CxfRestSingleton.getInstance().agentLogout(12345).getDn();