红帽全球峰会5.4. JAX-RS
JAX-RS 支持由 Camel CXF-RS 提供。
5.4.1. CXF-RS Producer
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<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:cxf="http://camel.apache.org/schema/cxf"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://camel.apache.org/schema/cxf http://camel.apache.org/schema/cxf/camel-cxf.xsd
http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">
<cxf:rsClient id="cxfProducer"
address="http://localhost:8080/rest"
serviceClass="org.wildfly.camel.examples.cxf.jaxrs.GreetingService" />
<camelContext id="cxfrs-camel-context" xmlns="http://camel.apache.org/schema/spring">
<route>
<from uri="direct:start" />
<setHeader headerName="operationName">
<simple>greet</simple>
</setHeader>
<setHeader headerName="CamelCxfRsUsingHttpAPI">
<constant>false</constant>
</setHeader>
<to uri="cxfrs:bean:cxfProducer" />
</route>
</camelContext>
</beans>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:cxf="http://camel.apache.org/schema/cxf"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://camel.apache.org/schema/cxf http://camel.apache.org/schema/cxf/camel-cxf.xsd
http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">
<cxf:rsClient id="cxfProducer"
address="http://localhost:8080/rest"
serviceClass="org.wildfly.camel.examples.cxf.jaxrs.GreetingService" />
<camelContext id="cxfrs-camel-context" xmlns="http://camel.apache.org/schema/spring">
<route>
<from uri="direct:start" />
<setHeader headerName="operationName">
<simple>greet</simple>
</setHeader>
<setHeader headerName="CamelCxfRsUsingHttpAPI">
<constant>false</constant>
</setHeader>
<to uri="cxfrs:bean:cxfProducer" />
</route>
</camelContext>
</beans>5.4.2. CXF-RS Consumer
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<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:cxf="http://camel.apache.org/schema/cxf"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://camel.apache.org/schema/cxf http://camel.apache.org/schema/cxf/camel-cxf.xsd
http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">
<cxf:rsServer id="cxfConsumer"
address="http://localhost:8080/rest"
serviceClass="org.wildfly.camel.examples.cxf.jaxrs.GreetingService" />
<camelContext id="cxfrs-camel-context" xmlns="http://camel.apache.org/schema/spring">
<route>
<from uri="cxfrs:bean:cxfConsumer" />
<setBody>
<constant>Hello world</constant>
</setBody>
</route>
</camelContext>
</beans>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:cxf="http://camel.apache.org/schema/cxf"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://camel.apache.org/schema/cxf http://camel.apache.org/schema/cxf/camel-cxf.xsd
http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">
<cxf:rsServer id="cxfConsumer"
address="http://localhost:8080/rest"
serviceClass="org.wildfly.camel.examples.cxf.jaxrs.GreetingService" />
<camelContext id="cxfrs-camel-context" xmlns="http://camel.apache.org/schema/spring">
<route>
<from uri="cxfrs:bean:cxfConsumer" />
<setBody>
<constant>Hello world</constant>
</setBody>
</route>
</camelContext>
</beans>5.4.3. 使用 Camel REST DSL 的 JAX-RS Consumer
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Camel REST DSL 提供了编写充当 JAX-RS 消费者的 Camel 路由的功能。以下 RouteBuilder 类显示如下：
@Startup
@ApplicationScoped
@ContextName("rest-camel-context")
public class RestConsumerRouteBuilder extends RouteBuilder {
@Override
public void configure() throws Exception {
// Use the camel-undertow component to provide REST integration
restConfiguration().component("undertow")
.contextPath("/rest").port(8080).bindingMode(RestBindingMode.json);
rest("/customer")
// GET /rest/customer
.get()
.produces(MediaType.APPLICATION_JSON)
.to("direct:getCustomers")
// GET /rest/customer/1
.get("/{id}")
.produces(MediaType.APPLICATION_JSON)
.to("direct:getCustomer")
// POST /rest/customer
.post()
.type(Customer.class)
.to("direct:createCustomer");
// PUT /rest/customer
.put()
.type(Customer.class)
.to("direct:updateCustomer");
// DELETE /rest/customer/1
.delete("/{id}")
.to("direct:deleteCustomer");
}
}
@Startup
@ApplicationScoped
@ContextName("rest-camel-context")
public class RestConsumerRouteBuilder extends RouteBuilder {
@Override
public void configure() throws Exception {
// Use the camel-undertow component to provide REST integration
restConfiguration().component("undertow")
.contextPath("/rest").port(8080).bindingMode(RestBindingMode.json);
rest("/customer")
// GET /rest/customer
.get()
.produces(MediaType.APPLICATION_JSON)
.to("direct:getCustomers")
// GET /rest/customer/1
.get("/{id}")
.produces(MediaType.APPLICATION_JSON)
.to("direct:getCustomer")
// POST /rest/customer
.post()
.type(Customer.class)
.to("direct:createCustomer");
// PUT /rest/customer
.put()
.type(Customer.class)
.to("direct:updateCustomer");
// DELETE /rest/customer/1
.delete("/{id}")
.to("direct:deleteCustomer");
}
}通过设置绑定模式，Camel canmarshal 和 unmarshal JSON 数据可以通过指定 'produces（）' 或 'type（）' 配置步骤。
注意
-
REST DSL 配置从
restConfiguration（）.component("undertow")开始。 - EAP 子系统上的 Camel 仅支持 camel-servlet 和 camel-undertow 组件，以用于 REST DSL。但是，如果您配置其他组件，它将无法正常工作。
5.4.4. 安全性
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请参阅 JAX-RS 安全性部分。
5.4.5. EAP 上的 Fuse 中的 Quickstart 示例
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在快速入门 /camel/camel-cxf-jaxrs 目录的 Fuse 中提供了快速入门 示例。
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