创建一个最简单的restlet webservice

OperationServer1方法里：

public class OperationServer1 extends ServerResource {
	static String s = "operation1";

	@Get()
	public Representation doGet(Representation entity){		
		s = "Get Operation1";
		StringRepresentation entityRsp=new StringRepresentation(s, MediaType.TEXT_XML);
		return entityRsp;
		
	}
	
	@Post()
	public Representation doPost(Representation entity) {
		s = "Post Operation1";
		StringRepresentation entityRsp=new StringRepresentation(s, MediaType.TEXT_XML);
		return entityRsp;

    }
	
	@Put()
	public Representation doPut(Representation entity){
		s = "Put Operation1";
		StringRepresentation entityRsp=new StringRepresentation(s, MediaType.TEXT_XML);
		return entityRsp;
		
	}

	@Delete()
	public Representation doDelete(Representation entity){
		s = "Delete Operation1";
		StringRepresentation entityRsp=new StringRepresentation(s, MediaType.TEXT_XML);
		return entityRsp;
	}
	
}

其中extends ServerResource不能缺少，否则会报错cannot be cast to org.restlet.resource.ServerResource

WEB-INF下web.xml

<!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>restClientExample</display-name>
	
		<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>
			/WEB-INF/xml/restApi.xml
          </param-value>
	</context-param>
	
		<context-param>
		<param-name>logbackConfigLocation</param-name>
		<param-value>/WEB-INF/xml/logback.xml</param-value>
	</context-param>
	
	<filter>  
    <filter-name>Spring character encoding filter</filter-name>  
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
    <init-param>  
        <param-name>encoding</param-name>  
        <param-value>utf-8</param-value>  
</init-param>
<init-param> 
        <param-name>forceEncoding</param-name> 
        <param-value>true</param-value>           
    </init-param>    
</filter>  

<filter-mapping>  
    <filter-name>Spring character encoding filter</filter-name>  
    <url-pattern>/*</url-pattern>  
</filter-mapping> 

	

	<listener>
		<listener-class>ch.qos.logback.classic.servlet.LogbackConfigListener</listener-class>
	</listener>

	
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<servlet>
		<servlet-name>restlet</servlet-name>
		<servlet-class>org.restlet.ext.spring.SpringServerServlet</servlet-class>
		<init-param>
			<param-name>org.restlet.component</param-name>
			<param-value>security_component</param-value>
		</init-param>
	</servlet>

	<servlet-mapping>
		<servlet-name>restlet</servlet-name>
		<url-pattern>/*</url-pattern>
	</servlet-mapping>
</web-app>

其中webapp标签下的各个标签顺序要按照要求来否则会报错The content of element type "web-app" must match "(icon?,display-name?,description?,distributable?,context-param*

xml目录下restApi.xml:

<?xml version="1.0" encoding="UTF-8"?>  
  
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd"> 
   <beans>
    <bean id="security_component" class="org.restlet.ext.spring.SpringComponent">  
        <property name="defaultTarget" ref="security_restRoute" />  
    </bean>  
       <bean id="security_restRoute" class="org.restlet.ext.spring.SpringRouter">  
        <property name="attachments">  
            <map>  
                <entry key="/operation1">  
                  <bean class="org.restlet.ext.spring.SpringFinder">
                 <lookup-method name="create" bean="Operation1" /> 
                  </bean>  
                </entry>
                <entry key="/operation2">  
                  <bean class="org.restlet.ext.spring.SpringFinder">
                 <lookup-method name="create" bean="Operation2" /> 
                  </bean>  
                </entry>
            </map>  
        </property>  
    </bean> 

	<bean id="Operation1" class="server.OperationServer1" scope="prototype">
	</bean>
	<bean id="Operation2" class="server.OperationServer2" scope="prototype">
	</bean>
</beans>

当然，有多个接口是，新增新的java类，在restApi.xml也相应添加新的bean即可。

其实如果有些公共类（所有URI都要使用到的），应该新写个server类，让其继承ServerResource，在这个sever类里初始化这些公有类，然后其他的URI都继承这个server类。
则restApi.xml需要修改下：

<bean id="fatherSever" class="sever.sever">
    	<property name="公有类名" ref="公有类"/>
    </bean>

	<bean id="Operation1" class="server.OperationServer1" scope="prototype" parent="fatherSever">
	</bean>

评论

1 楼 di1984HIT 2014-03-20  

Spring的啊