我一直在努力找出如何创建JAX Restful Service ...使用此处提供的指南 - Jersey
如第2.3.2节所述,我在Maven中添加了以下依赖项 -
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.0</version>
</dependency>
在web.xml中
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.classnames</param-name>
<param-value>org.glassfish.jersey.filter.LoggingFilter</param-value>
</init-param>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>com.hms.rs.controller.MyApp</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/services/*</url-pattern>
</servlet-mapping>
和MyApp.java
public class MyApp extends Application{
@Override
public Set<Class<?>> getClasses() {
return new HashSet<Class<?>>() {{
// Add your resources.
System.out.println("From the Myapp...");
add(Patient.class);
add(PatientController.class);
// Add LoggingFilter.
add(LoggingFilter.class);
}};
}
}
Patient.java -
@XmlRootElement(name = "Patient")
public class Patient {
private String patientFName;
private String patientLName;
private int patientAge;
private String patientSex;
private String patientParentSpouse;
private String patientQual;
private String patientOccupation;
private String patientComments;
public Patient()
{
}
Setters and Getters....
}
PatientController.java -
@Path("/ManagePatient")
public class PatientController {
@GET
@Path("/getPatient")
@Produces(MediaType.APPLICATION_XML)
public Patient printPatient() {
System.out.println("Hello.... from the PatientController");
Patient ptnt = new Patient();
ptnt.setPatientFName("FirstN");
ptnt.setPatientLName("LName");
ptnt.setPatientAge(30);
ptnt.setPatientSex("M");
ptnt.setPatientParentSpouse("ParentSpuse");
ptnt.setPatientQual("engg");
ptnt.setPatientOccupation("software");
ptnt.setPatientComments("comments here");
System.out.println("Patient = " + ptnt);
//return ptnt.toString();
return ptnt;
}
当我尝试通过浏览器访问@ localhost:8080 / HMS_Web / services / ManagePatient / getPatient
我正在
javax.servlet.ServletException: org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: MessageBodyWriter not found for media type=text/html, type=class com.hms.app.ui.beans.Patient, genericType=class com.hms.app.ui.beans.Patient.
我还在日志中看到以下警告 -
WARNING: A provider com.hms.app.ui.beans.Patient registered in SERVER runtime does not implement any provider interfaces applicable in the SERVER runtime. Due to constraint configuration problems the provider com.hms.app.ui.beans.Patient will be ignored.
如果Jersey 2.0支持基于JAXB的xml或json支持,如Jersey指南中提到的@ 8.1.1.2。基于JAXB的JSON支持,我不知道为什么我收到Provider错误。
任何JAX-WS专家都可以帮助我理解并指导我如何解决这种情况吗?
提前谢谢
答案 0 :(得分:2)
您正在通过浏览器访问该服务,因此您的PatientController将尝试将响应呈现为html,我猜这是
的原因javax.servlet.ServletException: org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: MessageBodyWriter not found for media type=text/html, type=class com.hms.app.ui.beans.Patient, genericType=class com.hms.app.ui.beans.Patient.
尝试通过jersey客户端api来提供服务,如下所示:
WebTarget webTarget = client.target("http://localhost:8080/HMS_Web/services/ManagePatient/getPatient");
Patient patient = webTarget.request(MediaType.APPLICATION_XML_TYPE).get(Patient.class);
警告:
WARNING: A provider com.hms.app.ui.beans.Patient registered in SERVER runtime does not implement any provider interfaces applicable in the SERVER runtime. Due to constraint configuration problems the provider com.hms.app.ui.beans.Patient will be ignored.
我认为你应该删除:
add(Patient.class);
MyApp 中的。患者只是一个POJO,既不是资源也不是提供者。