使用CXF创建REST WEBSERVICE

简单小结下CXF跟REST搭配webservice的做法,直接举代码为样例:



1 order.java

  package com.example.rest;



import javax.xml.bind.annotation.XmlRootElement;





@XmlRootElement(name = "Order")

public class Order {



    private int orderId;

    private String itemName;

    private int quantity;

    private String customerName;

    private String shippingAddress;



    public int getOrderId() {

        return orderId;

    }

    public void setOrderId(int orderId) {

        this.orderId = orderId;

    }

    public String getItemName() {

        return itemName;

    }

    public void setItemName(String itemName) {

        this.itemName = itemName;

    }

    public int getQuantity() {

        return quantity;

    }

    public void setQuantity(int quantity) {

        this.quantity = quantity;

    }

    public String getCustomerName() {

        return customerName;

    }

    public void setCustomerName(String customerName) {

        this.customerName = customerName;

    }

    public String getShippingAddress() {

        return shippingAddress;

    }

    public void setShippingAddress(String shippingAddress) {

        this.shippingAddress = shippingAddress;

    }



}



2 orderlist.java

   package com.example.rest;



import java.util.ArrayList;

import java.util.List;

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlRootElement;



@XmlRootElement(name = "OrderList")

public class OrderList {



    @XmlElement(name = "order", required = true)

    List <Order> orders;



    public List<Order> getOrder() {

        if (orders == null) {

            orders = new ArrayList<Order>();

        }

        return this.orders;

    }

}





3 orderinof.java的接口

   package com.example.rest;



import javax.ws.rs.GET;

import javax.ws.rs.Path;

import javax.ws.rs.PathParam;

import javax.ws.rs.Produces;







@Path("/Order/")

public interface OrderInfo {



@GET

@Produces ("application/xml")

@Path("{orderId}")

public Order getOrder(@PathParam ("orderId") int officeId);



@GET

@Produces ("application/xml")

@Path ("All")

public OrderList getAllOrders();



}



4 OrderinfoImpl.java接口实现类

   package com.example.rest;



import java.util.ArrayList;

import java.util.List;



public class OrderInfoImpl implements OrderInfo {



    List <Order> list = new ArrayList<Order>();



    OrderInfoImpl(){

        Order order = new Order();

        order.setOrderId(1);

        order.setItemName("Soap");

        order.setQuantity(120);

        order.setCustomerName("Sandeep");

        order.setShippingAddress("Gurgaon");

        list.add(0, order);



        order.setOrderId(2);

        order.setItemName("Shampoo");

        order.setQuantity(50);

        order.setCustomerName("Sandeep");

        order.setShippingAddress("Gurgaon");

        list.add(1, order);

    }



    @Override

    public Order getOrder(int orderId) {

        System.out.println("Inside the GetOrder...");

        if (list.get(0).getOrderId() == orderId) {

            return list.get(0);

        } else if (list.get(1).getOrderId() == orderId) {

            return list.get(1);

        } else {

            return null;

        }

    }



    @Override

    public OrderList getAllOrders() {

        OrderList details = new OrderList();

        for(Order order : list) {

            details.getOrder().add(order);

        }

        return details;

    }

}



CXF的配置

   <beans xmlns:jaxrs="http://cxf.apache.org/jaxrs" xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans" xsi:schemalocation="

http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans.xsd

http://www.springframework.org/schema/util

http://www.springframework.org/schema/util/spring-util-2.0.xsd

http://cxf.apache.org/jaxrs

http://cxf.apache.org/schemas/jaxrs.xsd">



  <import resource="classpath:META-INF/cxf/cxf.xml">

  <import resource="classpath:META-INF/cxf/cxf-extension-jaxrs-binding.xml">

  <import resource="classpath:META-INF/cxf/cxf-servlet.xml">

  <jaxrs:server address="/" id="connectionService">

   <jaxrs:servicebeans>

              <ref bean="order">

   </ref></jaxrs:servicebeans>

   <jaxrs:extensionmappings>

    <entry key="xml" value="application/xml">

   </entry>

</jaxrs:extensionmappings>

  </jaxrs:server>

<bean class="com.javatch.rest.OrderImpl" id="order">

</bean>

</import>

</import>

</import>

</beans>



web.xml的配置记得加上CXF配置

  <?

xml version="1.0"?>

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

"http://java.sun.com/dtd/web-app_2_3.dtd">



<web-app>

  <display-name>RestWithCXF</display-name>



  <context-param>

   <param-name>contextConfigLocation</param-name>

   <param-value>classpath:com/javatch/rest/cxf.xml</param-value>

  </context-param>

  <listener>



   <listener-class>

    org.springframework.web.context.ContextLoaderListener

   </listener-class>

  </listener>

  <servlet>

   <servlet-name>CXFServlet</servlet-name>



   <servlet-class>

    org.apache.cxf.transport.servlet.CXFServlet

   </servlet-class>

  </servlet>

  <servlet-mapping>

   <servlet-name>CXFServlet</servlet-name>



   <url-pattern>/services/*</url-pattern>

  </servlet-mapping>

</web-app>



5 最后执行

  htttp://localhost:8085/reset/services/order/all

返回全部ORDER列表