Spring 与 RESTEasy 集成

Question

在我们现有的集成中，我们计划用 RESTEasy 服务替换 Queue（我们集成处理的入口点）。

我们正在处理如下 HTTP 请求：

1) GET 的异步 HTTP 请求处理 2) POST

的异步作业服务

我了解 spring 集成为 HTTP 请求提供和。但这不是我们想要的，因为请求处理是由 RESTEasy 处理的。

软件堆栈： RESTEasy 3.0.9 框架 Spring 集成 4.1.2.RELEASE JBOSS EAP 6.4.

是否有我们可以用来将 RESTEasy 服务与 spring 集成的组件？

Answer 1

不存在显式组件，所有 API 工作都需要完成。您需要使用依赖jar文件和集成代码

以下是使用 ant 或 maven 在工作区环境中作为路径的最小 Jar 文件：

org.jboss.resteasy:resteasy-jaxrs:3.0.10.Final
org.jboss.resteasy:resteasy-spring:3.0.10.Final
org.springframework.boot:spring-boot-starter-web:1.2.2.RELEASE
org.jboss.resteasy:resteasy-jackson2-provider:3.0.10.Final

待完成 web.xml 中的以下侦听器条目：

   <context-param>
    <param-name>resteasy.servlet.mapping.prefix</param-name>
    <param-value>/project</param-value>
   </context-param>
   <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
   </context-param>
   <listener>
    <listener- class>org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap</listener-class>
    </listener>
   <listener>
    <listener-class>org.jboss.resteasy.plugins.spring.SpringContextLoaderListener</listener-class>
    </listener>
    <servlet>
    <servlet-name>RESTEasyService</servlet-name>
    <servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class>
     <init-param>
        <param-name>javax.ws.rs.Application</param-name>
        <param-value>com.concretepage.Application</param-value>
     </init-param>
    </servlet>
    <servlet-mapping>
     <servlet-name>RESTEasyService</servlet-name>
     <url-pattern>/project/*</url-pattern>
    </servlet-mapping>

Dispatch Servlet可以放入WEB-INF

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.0.xsd">
       <context:component-scan base-package="com.concretepage" />
</beans>

样本Java服务代码：

import java.util.Map;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Path("/manage" )
@Component
public class ExService {
    @Autowired
    private ExRepository repository;

    @GET
    @Path("/{id}")
    @Produces("application/json")
    public Response getEmp(@PathParam("id") String id) {
        Map<String,String> map = repository.getEmpDetail(id);
        return Response.ok(map).build();
    }
}

详情可参考http://docs.jboss.org/resteasy/docs/3.0.9.Final/userguide/html_single/index.html#RESTEasy_Spring_Integration

Answer 2

Use  <int:gateway> to do the integration with spring. 

    <int:gateway id="providerGateway" service-interface="com.stack.overflow.TestInterface"
        default-request-channel="requestChannel">
        <int:method name="getDataByID" request-channel="requestChannel"/>
        <int:method name="postDataByID" request-channel="requestChannel"/>
    </int:gateway>

Where com.stack.overflow.TestInterface is the Resource Interface see below:

    @Path(RestConstants.SERVICES)
    public interface TestInterface {

    @Path(RestConstants.TEST1)
    @GET
    @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
    public Response getDataByID();



    @Path(RestConstants.TEST2)
    @POST
    @Produces({ MediaType.TEXT_PLAIN  })
    public Response postDataByID(String edi);

}

You can have different message channel if desired (see the gateway above)  for a request. e.g. a request to getDataByID, will be put on the  requestChannel. You can read from this channel and do the required processing as you require and then send a response back.

Spring 与 RESTEasy 集成

Spring Integration with RESTEasy

jboss

spring-integration

resteasy