Web Service CXF 两种开发的两种方式

Web Service__CXF__两种开发的两种方式

步骤：
    1、环境搭建
    2、编写服务
    3、发布服务
    4、客户端访问服务 
   
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wsdl优先 方式
   
1、环境搭建：引入相应的jar包等
2、编写服务：编写服务接口和实现服务接口的类

Java代码

1. package com.yaha.ws; 
2.  
3. import javax.jws.WebService; 
4.  
5. @WebService 
6. public interface WeatherForecast { 
7.      
8.     public String getWeatherTomorrow(String city); 
9.      
10.     public int gettTemperature(String city); 
11.      
12.     public boolean hasTomorrowWeather(); 
13. } 

		package com.yaha.ws;
		
		import javax.jws.WebService;
		
		@WebService
		public interface WeatherForecast {
			
			public String getWeatherTomorrow(String city);
			
			public int gettTemperature(String city);
			
			public boolean hasTomorrowWeather();
		}

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Java代码

1. package com.yaha.ws.impl; 
2.  
3. import javax.jws.WebParam; 
4. import javax.jws.WebService; 
5.  
6. import com.yaha.ws.WeatherForecast; 
7.  
8. @WebService(endpointInterface="com.yaha.ws.WeatherForecast" , 
9.             name="WeatherForecast") 
10. public class WeatherForecastImpl implements WeatherForecast { 
11.  
12.     public String getWeatherTomorrow(@WebParam(name="city") String city) { 
13.         if("beijing".equalsIgnoreCase(city)) { 
14.             return "snow"; 
15.         }else if("shanghai".equalsIgnoreCase(city)) { 
16.             return "sun"; 
17.         }else if("nanchang".equalsIgnoreCase(city)) { 
18.             return "wind soft and sun beautiful"; 
19.         }else if("chongqing".equalsIgnoreCase(city)) { 
20.             return "wind soft and sun beautiful too"; 
21.         } 
22.         return "sorry, no message for the city:" + city; 
23.     } 
24.  
25.     public int gettTemperature(String city) { 
26.         if("beijing".equalsIgnoreCase(city)) { 
27.             return -3; 
28.         }else if("shanghai".equalsIgnoreCase(city)) { 
29.             return 17; 
30.         }else if("nanchang".equalsIgnoreCase(city)) { 
31.             return 15; 
32.         }else if("chongqing".equalsIgnoreCase(city)) { 
33.             return 15; 
34.         } 
35.         return -227; 
36.     } 
37.  
38.     public boolean hasTomorrowWeather() { 
39.          
40.         return true; 
41.     } 
42.  
43. } 

		
		package com.yaha.ws.impl;
		
		import javax.jws.WebParam;
		import javax.jws.WebService;
		
		import com.yaha.ws.WeatherForecast;
		
		@WebService(endpointInterface="com.yaha.ws.WeatherForecast" ,
					name="WeatherForecast")
		public class WeatherForecastImpl implements WeatherForecast {
		
			public String getWeatherTomorrow(@WebParam(name="city") String city) {
				if("beijing".equalsIgnoreCase(city)) {
					return "snow";
				}else if("shanghai".equalsIgnoreCase(city)) {
					return "sun";
				}else if("nanchang".equalsIgnoreCase(city)) {
					return "wind soft and sun beautiful";
				}else if("chongqing".equalsIgnoreCase(city)) {
					return "wind soft and sun beautiful too";
				}
				return "sorry, no message for the city:" + city;
			}
		
			public int gettTemperature(String city) {
				if("beijing".equalsIgnoreCase(city)) {
					return -3;
				}else if("shanghai".equalsIgnoreCase(city)) {
					return 17;
				}else if("nanchang".equalsIgnoreCase(city)) {
					return 15;
				}else if("chongqing".equalsIgnoreCase(city)) {
					return 15;
				}
				return -227;
			}
		
			public boolean hasTomorrowWeather() {
				
				return true;
			}
		
		}

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3、发布服务
还可以用其他方式发布服务，有些方式更为细腻，你可以添加一些interceptor以在开始或结束时做一些处理

Java代码

1. package com.yaha.ws.service; 
2.  
3. import javax.xml.ws.Endpoint; 
4.  
5. import com.yaha.ws.WeatherForecast; 
6. import com.yaha.ws.impl.WeatherForecastImpl; 
7.  
8. public class WSDeploy { 
9.  
10.     /**
11.      * @param args
12.      */ 
13.     public static void main(String[] args) { 
14.         System.out.println("service start....."); 
15.         WeatherForecast weatherForecast = new WeatherForecastImpl(); 
16.         String address = "http://localhost:9000/WeatherForecast"; 
17.         Endpoint.publish(address, weatherForecast); 
18.     } 
19.  
20. } 

package com.yaha.ws.service;

import javax.xml.ws.Endpoint;

import com.yaha.ws.WeatherForecast;
import com.yaha.ws.impl.WeatherForecastImpl;

public class WSDeploy {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		System.out.println("service start.....");
		WeatherForecast weatherForecast = new WeatherForecastImpl();
		String address = "http://localhost:9000/WeatherForecast";
		Endpoint.publish(address, weatherForecast);
	}

}

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4、客户端访问服务
先把服务端的接口类打成jar包（此测试中，jar包只需包含WeatherForecast接口就行），然后在客户端的ClassPath引入该jar包

Java代码

1. package com.yaha.ws.client; 
2.  
3. import org.apache.cxf.jaxws.JaxWsProxyFactoryBean; 
4. import org.junit.Test; 
5.  
6. import com.yaha.ws.WeatherForecast; 
7.  
8.  
9. public class Test01 { 
10.     public static WeatherForecast weatherForecast; 
11.     static { 
12.         JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean(); 
13.         factory.setServiceClass(WeatherForecast.class); 
14.         factory.setAddress("http://localhost:9000/WeatherForecast"); 
15.         weatherForecast = (WeatherForecast)factory.create(); 
16.     } 
17.  
18.     @Test 
19.     public void getWeatherTormorrow() { 
20.          
21.         System.out.println(weatherForecast.getWeatherTomorrow("beijing")); 
22.         System.out.println(weatherForecast.getWeatherTomorrow("shanghai")); 
23.         System.out.println(weatherForecast.getWeatherTomorrow("nanchang")); 
24.         System.out.println(weatherForecast.getWeatherTomorrow("chongqing")); 
25.         System.out.println(weatherForecast.getWeatherTomorrow("huaihua")); 
26.     } 
27.      
28.     @Test 
29.     public void getTemperatrue() { 
30.         System.out.println(weatherForecast.gettTemperature("beijing")); 
31.         System.out.println(weatherForecast.gettTemperature("shanghai")); 
32.         System.out.println(weatherForecast.gettTemperature("nanchang")); 
33.         System.out.println(weatherForecast.gettTemperature("chongqing")); 
34.         System.out.println(weatherForecast.gettTemperature("huaihua")); 
35.     } 
36.      
37.     @Test 
38.     public void hasWeatherTomorrow() { 
39.         System.out.println(weatherForecast.hasTomorrowWeather()); 
40.     } 
41. } 

package com.yaha.ws.client;

import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
import org.junit.Test;

import com.yaha.ws.WeatherForecast;


public class Test01 {
	public static WeatherForecast weatherForecast;
	static {
		JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
		factory.setServiceClass(WeatherForecast.class);
		factory.setAddress("http://localhost:9000/WeatherForecast");
		weatherForecast = (WeatherForecast)factory.create();
	}

	@Test
	public void getWeatherTormorrow() {
		
		System.out.println(weatherForecast.getWeatherTomorrow("beijing"));
		System.out.println(weatherForecast.getWeatherTomorrow("shanghai"));
		System.out.println(weatherForecast.getWeatherTomorrow("nanchang"));
		System.out.println(weatherForecast.getWeatherTomorrow("chongqing"));
		System.out.println(weatherForecast.getWeatherTomorrow("huaihua"));
	}
	
	@Test
	public void getTemperatrue() {
		System.out.println(weatherForecast.gettTemperature("beijing"));
		System.out.println(weatherForecast.gettTemperature("shanghai"));
		System.out.println(weatherForecast.gettTemperature("nanchang"));
		System.out.println(weatherForecast.gettTemperature("chongqing"));
		System.out.println(weatherForecast.gettTemperature("huaihua"));
	}
	
	@Test
	public void hasWeatherTomorrow() {
		System.out.println(weatherForecast.hasTomorrowWeather());
	}
}

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测试运行输出结果 output：
snow
sun
wind soft and sun beautiful
wind soft and sun beautiful too
sorry, no message for the city:huaihua
-3
17
15
15
-227
true

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代码优先方式

    1、环境搭建（同wsdl优先）
    2、编写服务（同wsdl优先）
    3、发布服务（同wsdl优先）
   
----------------------------------------------------------------------------------------------------------------
4、客户端访问服务

4.1、用cxf里面的wsdl2java工具把wsdl文件生成相应的java存根（stub）类

工具使用命令：
wsdl2java -p clientstub.weatherforecast -d weatherforecast -client http://localhost:9000/WeatherForecast?wsdl

打开weatherforecast文件夹，可以看到生成的如下java文件：

GettTemperature.java
GettTemperatureResponse.java
GetWeatherTomorrow.java
GetWeatherTomorrowResponse.java
HasTomorrowWeather.java
HasTomorrowWeatherResponse.java
ObjectFactory.java
package-info.java
WeatherForecast_WeatherForecastPort_Client.java
WeatherForecast.java
WeatherForecastImplService.java

4.2、把生存的java存根类复制到项目里面

4.3、编写调用服务的客户端代码。如下：

Java代码

1. package com.yaha.ws.client; 
2.  
3.  
4.     import org.junit.Test; 
5.      
6.     import clientstub.weatherforecast.WeatherForecast; 
7.     import clientstub.weatherforecast.WeatherForecastImplService; 
8.      
9.     public class StubTest01 { 
10.          
11.         @Test 
12.         public void test01() { 
13.             WeatherForecast weatherForecast = new WeatherForecastImplService(). 
14.                                                                                         getWeatherForecastPort(); 
15.              
16.             System.out.println(weatherForecast.hasTomorrowWeather()); 
17.              
18.             System.out.println(weatherForecast.getWeatherTomorrow("shanghai")); 
19.             System.out.println(weatherForecast.getWeatherTomorrow("beijing")); 
20.             System.out.println(weatherForecast.getWeatherTomorrow("nanchang")); 
21.             System.out.println(weatherForecast.getWeatherTomorrow("chongqing")); 
22.             System.out.println(weatherForecast.getWeatherTomorrow("huaihua")); 
23.              
24.             System.out.println(weatherForecast.gettTemperature("shanghai")); 
25.             System.out.println(weatherForecast.gettTemperature("beijing")); 
26.             System.out.println(weatherForecast.gettTemperature("nanchang")); 
27.             System.out.println(weatherForecast.gettTemperature("chongqing")); 
28.             System.out.println(weatherForecast.gettTemperature("huaihua")); 
29.         } 
30.      
31.     } 

package com.yaha.ws.client;


	import org.junit.Test;
	
	import clientstub.weatherforecast.WeatherForecast;
	import clientstub.weatherforecast.WeatherForecastImplService;
	
	public class StubTest01 {
		
		@Test
		public void test01() {
			WeatherForecast weatherForecast = new WeatherForecastImplService().
																						getWeatherForecastPort();
			
			System.out.println(weatherForecast.hasTomorrowWeather());
			
			System.out.println(weatherForecast.getWeatherTomorrow("shanghai"));
			System.out.println(weatherForecast.getWeatherTomorrow("beijing"));
			System.out.println(weatherForecast.getWeatherTomorrow("nanchang"));
			System.out.println(weatherForecast.getWeatherTomorrow("chongqing"));
			System.out.println(weatherForecast.getWeatherTomorrow("huaihua"));
			
			System.out.println(weatherForecast.gettTemperature("shanghai"));
			System.out.println(weatherForecast.gettTemperature("beijing"));
			System.out.println(weatherForecast.gettTemperature("nanchang"));
			System.out.println(weatherForecast.gettTemperature("chongqing"));
			System.out.println(weatherForecast.gettTemperature("huaihua"));
		}
	
	}

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输出结果：
true
sun
snow
wind soft and sun beautiful
wind soft and sun beautiful too
sorry, no message for the city:huaihua
17
-3
15
15
-227



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后话：
了解代码优先和wsdl优先（也有叫契约优先）的区别？在应用上面有什么不同？各的优缺点？
如：当服务端接口有改变时，我们就必须得重新生成新的客户端存根类