从暴露的RESTeasy接口访问@Local Session Bean [英] Accessing @Local Session Bean from an exposed RESTeasy interface
问题描述
我正在试图找出我如何访问会话bean使用RESTeasy的正常方式。这是迄今为止所看到的东西：
使用：
EJB 3
RESTeasy 2.1
PUBLISHED EJB INTERFACE：
@Local
@Path（RequestReport）
public interface EReport {
@GET
@Produces（{application / xml}）
@Path（request）
public String requestReport（@QueryParam（reportId）@DefaultValue（）String reportId，
@QueryParam（reportName）@DefaultValue（）String reportName，
@QueryParam（reportType）@DefaultValue（）String reportType）;
}
}
BEAN 1：
@Stateless
public class EReportRequest实现EReport {
@EJB
private ReplyStringLocal replyString; //这是问题所在。
public String requestReport（@QueryParam（reportId）@DefaultValue（）String reportId，
@QueryParam（reportName）@DefaultValue（）String reportName，
@QueryParam（reportType）@DefaultValue（）String reportType）{
return replyString.getReply（reportId，reportName，reportType）;
}
}
UNPUBLISHED EJB INTERFACE：
@Local
public interface ReplyStringLocal {
public String getReply（String reportId，String reportName，String报告类型）;
}
BEAN 2：
@Stateless
public class ReplyString implements ReplyStringLocal {
public String getReply（String reportId，String reportName，String reportType）{
return< response>< reportId> + reportId +< / reportId>< reportName> + reportName +
< / reportName>< reportType> + reportType +< / reportType>< / response>;
}
}
这个例子是超简化的，用于展示我的问题。感谢提前获得任何帮助。
对于：JBoss 5，RESTeasy 2.1和EJB 3。
好的，所以我终于得到了关于EJB的完整故事。所以这里是：
A。您可以通过提供RESTeasy路径注释和EJB会话Bean annotaion来发布具有RESTful接口的Session Bean。
INTERFACE：
@Local
@Path（MessageMaker）
public界面MessageMakerLocal {
@GET
@Produces（{application / xml}）
@Path（getMessage）
public String getMessage（@QueryParam message）@DefaultValue（）String message）;
}
实现：
@Stateless
public class MessageMakerImpl实现MessageMakerLocal {
public String getMessage（@QueryParam（message ）@DefaultValue（）String message）{
返回您的消息：+消息;
}
}
。
B。您不能在RESTeasy中使用@EJB注释，因此使用发布的POJO或已发布的EJB的@Local会话Bean引用是不成问题的。因此，原始帖子中提供的示例无效。
。
C。要从已发布的POJO或已发布的会话Bean中访问会话Bean，可以使用@Remote接口注释和JAR Bean类。当您构建EAR文件时，将JAR添加到EAR的根目录，并在META-INF / application.xml文件中添加引用。
INTERFACE：
@Remote
public接口MessageMakerRemote {
public String getMessage（@QueryParam（message）@DefaultValue（）String message）;
}
}
实现： em>
@Stateless
@RemoteBinding（jndiBinding =MessageMakerRemote）
public class MessageMakerImpl实现MessageMakerRemote {
public String getMessage（String message）{
返回您的消息：+消息;
}
}
在Application.xml中： >
< module>
< java> MessageMaker.jar< / java>
< / module>
然后可以使用JNDI远程调用jar来引用它：
@Local
@Path（Message）
public class Message {
@GET
@Path（requestMessage）
public String requestMessage（@QueryParam（msg）@DefaultValue（）String msg）{
//我使用自定义JNDI远程调用处理程序类，所以我对JARed bean的调用如下所示：
return JNDIRemote.getRemote（com.message.ejb3.MessageMakerRemote.class）.getMessage（msg）;
}
}
我希望稍后版本的RESTeasy能够提供更好的集成EJB。
What I am trying to do should be very straight forward BUT thus far has been impossible. Can someone tell me how to access a @Local Session Bean from an exposed RESTeasy interface? I have trawled the length and breadth of the internet and all I can find is variations of the same example
I am trying to find out how I can access a session bean in the normal way using RESTeasy. This is what things look like so far:
USING:
EJB 3
RESTeasy 2.1
PUBLISHED EJB INTERFACE:
@Local
@Path("RequestReport")
public interface EReport {
@GET
@Produces({"application/xml"})
@Path("request")
public String requestReport(@QueryParam("reportId") @DefaultValue("") String reportId,
@QueryParam("reportName") @DefaultValue("") String reportName,
@QueryParam("reportType") @DefaultValue("") String reportType);
}
}
BEAN 1:
@Stateless
public class EReportRequest implements EReport {
@EJB
private ReplyStringLocal replyString; // THIS IS WHERE THE PROBLEM LIES.
public String requestReport(@QueryParam("reportId") @DefaultValue("") String reportId,
@QueryParam("reportName") @DefaultValue("") String reportName,
@QueryParam("reportType") @DefaultValue("") String reportType) {
return replyString.getReply(reportId, reportName, reportType);
}
}
UNPUBLISHED EJB INTERFACE:
@Local
public interface ReplyStringLocal {
public String getReply(String reportId, String reportName, String reportType);
}
BEAN 2:
@Stateless
public class ReplyString implements ReplyStringLocal {
public String getReply(String reportId, String reportName, String reportType) {
return "<response><reportId>" + reportId + "</reportId><reportName>" + reportName +
"</reportName><reportType>" + reportType + "</reportType></response>";
}
}
This example is super simplified for the purposes of demonstrating my issue. Thanks in advance for any help.
For: JBoss 5, RESTeasy 2.1 and EJB 3.
Ok so I finally got the full story on EJBs with RESTeasy. So here it is:
A. You can publish a Session bean with a RESTful interface by giving it RESTeasy path annotation and EJB Session bean annotaion.
INTERFACE:
@Local
@Path("MessageMaker")
public interface MessageMakerLocal {
@GET
@Produces({"application/xml"})
@Path("getMessage")
public String getMessage(@QueryParam("message") @DefaultValue("") String message);
}
IMPLEMENTATION:
@Stateless
public class MessageMakerImpl implements MessageMakerLocal {
public String getMessage(@QueryParam("message") @DefaultValue("") String message) {
return "Your Message: " + message;
}
}
.
B. You cannot use @EJB annotation in RESTeasy so using a @Local Session bean reference from a published POJO or published EJB is out of the question. So the example provided in the original post is not valid.
.
C. To access a Session Bean from published POJOs or published Session Bean, you can use the @Remote interface annotation and JAR your Bean classes. When you are building your EAR file add the JAR to the root of your EAR and add a reference to it in your META-INF/application.xml file.
INTERFACE:
@Remote
public interface MessageMakerRemote {
public String getMessage(@QueryParam("message") @DefaultValue("") String message);
}
}
IMPLEMENTATION:
@Stateless
@RemoteBinding(jndiBinding = "MessageMakerRemote")
public class MessageMakerImpl implements MessageMakerRemote {
public String getMessage(String message) {
return "Your Message: " + message;
}
}
In Application.xml:
<module>
<java>MessageMaker.jar</java>
</module>
You can then make reference to it using a JNDI remote call to your jar:
@Local
@Path("Message")
public class Message {
@GET
@Path("requestMessage")
public String requestMessage(@QueryParam("msg") @DefaultValue("") String msg){
// I use a custom JNDI remote call handler class so my call to the JARed beans looks like this:
return JNDIRemote.getRemote(com.message.ejb3.MessageMakerRemote.class).getMessage(msg);
}
}
I am hoping that later versions of RESTeasy will provide better integration of EJBs.
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