请找到以下代码。
Service:DataResource.java
package com.mypack.pack2;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import javax.ws.rs.Consumes;
import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import com.mypack.pack1.DataClass;
@Path("data")
public class DataResource {
//Just retrieves the data members of the class
//i.e., 10 Ram
// Able to retrieve successfully.
@GET
@Produces("text/plain")
public String display()
{
DataClass obj1=new DataClass();
return obj1.getId()+obj1.getName();
}
@POST
@Path("/{id}/{name}")
@Produces("text/plain")
@Consumes("text/plain")
public void newData(@PathParam("id") int no,
@PathParam("name") String name) {
DataClass obj= new DataClass();
obj.setData(name,no);
System.out.println("Success");
System.out.println("Data after changes"+obj.getId()+obj.getName());
}
//TodoDao.instance.getModel().put(id, todo);
}
DataClass.java
package com.mypack.pack1;
public class DataClass {
private String ename="Ram";
private int eno=10;
public void setData(String name,int no)
{
this.ename=name;
this.eno=no;
}
public int getId()
{
return eno;
}
public String getName()
{
return ename;
}
}
Web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>de.vogella.jersey.jaxb</display-name>
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>com.mypack.pack2</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
我无法更改班级成员ename
和eno
. DataClass
谁能告诉我为什么它没有改变?是因为我以错误的方式尝试代码吗?