1. 假設我們有個服務 (都是從別處拿來的代碼)
mport javax.ws.rs.*;
import javax.ws.rs.core.Response;
@Path(value = "/student/{id}")
public interface StudentService
{
@GET
@Path(value = "/info")
Student getStudent(@PathParam("id") long id, @QueryParam("name")
String name);
@GET
@Path(value = "/info2")
UserResponse getStudent(@QueryParam("name") String name);
}
服務實現類:
import javax.ws.rs.core.Response;
import java.text.ParseException;
import java.text.SimpleDateFormat;
public class StudentServiceImpl implements StudentService
{
public Student getStudent(long id, String name)
{
Student s = new Student();
s.setId(id);
s.setName(name);
try
{
s.setBirthday(new SimpleDateFormat("yyyy-MM-dd").parse("1983-04-26"));
}
catch (ParseException e)
{
e.printStackTrace();
}
return s;
}
public Response getStudent1(String name)
{
Student s = new Student();
s.setId(1);
s.setName(name);
try
{
s.setBirthday(new SimpleDateFormat("yyyy-MM-dd").parse("1983-04-26"));
}
catch (ParseException e)
{
e.printStackTrace();
}
return Response.ok(s).build();
//return s;
}
public UserResponse getStudent(String name)
{
Student s = new Student();
s.setId(1);
s.setName(name);
try
{
s.setBirthday(new SimpleDateFormat("yyyy-MM-dd").parse("1983-04-26"));
}
catch (ParseException e)
{
e.printStackTrace();
}
return new UserResponse("ok", s);
}
返回數據包裝類
import javax.xml.bind.annotation.*;
@XmlRootElement(name = "Response")
@XmlAccessorType(XmlAccessType.FIELD)
public class UserResponse
{
private String status;
private Student data;
public UserResponse()
{
}
public UserResponse(String status, Student data)
{
this.status = status;
this.data = data;
}
public String getStatus()
{
return status;
}
public void setStatus(String status)
{
this.status = status;
}
public Object getData()
{
return data;
}
public void setData(Student data)
{
this.data = data;
}
}
普通類
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import java.util.Date;
@XmlRootElement(name = "Student")
@XmlAccessorType(XmlAccessType.FIELD)
public class Student
{
private long id;
private String name;
private Date birthday;
public long getId()
{
return id;
}
public void setId(long id)
{
this.id = id;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public Date getBirthday()
{
return birthday;
}
public void setBirthday(Date birthday)
{
this.birthday = birthday;
}
}
Spring 服務聲明
<import resource="classpath:META-INF/cxf/cxf.xml"/>
<import resource="classpath:META-INF/cxf/cxf-extension-soap.xml"/>
<import resource="classpath:META-INF/cxf/cxf-servlet.xml"/>
<import resource="classpath:META-INF/cxf/cxf-extension-jaxrs-binding.xml"/>
<bean id="rsStudentServiceImpl" class="ex3.StudentServiceImpl" />
<jaxrs:server id="test" address="/student" >
<jaxrs:serviceBeans>
<ref bean="rsStudentServiceImpl" />
</jaxrs:serviceBeans>
<!-- 這里設置了對應關系, 按理說默認就應該是這樣, 你可以試試. 當然可以自定義 -->
<jaxrs:extensionMappings>
<entry key="json" value="application/json"/>
<entry key="xml" value="application/xml"/>
</jaxrs:extensionMappings>
</jaxrs:server>
web.xml 就不貼了, 和普通的一樣.
2. 訪問方法有3種, 可以實現獲取不同格式的內容.
http://localhost:8080/student/student/3/info2.json?name=abcss
http://localhost:8080/student/student/3/info2.xml?name=abcss
http://localhost:8080/student/student/3/info2?name=abcss&_type=xml
http://localhost:8080/student/student/3/info2?name=abcss&_type=json
還有一種辦法就是在請求時設置Accept:
HttpGet get = new HttpGet(
"http://127.0.0.1:8080/student/student/3/info2?name=Fetion");
HttpClient httpclient = new DefaultHttpClient();
get.addHeader("ACCEPT", "application/xml");
HttpResponse response = httpclient.execute(get);
StatusLine st = response.getStatusLine();
InputStream ins = response.getEntity().getContent();
byte[] b = new byte[1024];
StringBuilder sb = new StringBuilder();
while (ins.read(b) != -1)
{
sb.append(new String(b, "UTF-8"));
}
System.out.println(sb.toString());
簡單吧.... 呵呵