将EJB方法暴露为REST服务 [英] Exposing EJB method as REST service

问题描述

在J2EE 6中，您可以将EJB会话bean公开为REST Web服务，如下所示：

  @Stateless 
 @Path（/ test）
 public class TestSessionBean {
 @GET 
 @Produces（application / xml）
 public String getTest ）{
 return<？xml version ='1.0'encoding ='UTF-8'？>< val>测试会话bean< / val>; 
} 
} 
  

当我在.war中打包EJB时，这可以工作但是，当我尝试将我的项目打包到EAR中的单独的Web和ejb模块中时，我发现一个HTML 404未找到错误。

有人可以解释吗？ p>

我正在使用Glassfish v3

这是我的web.xml

 < servlet> 
< servlet-name> TaskRestService< / servlet-name> 
< servlet-class> com.sun.jersey.spi.container.servlet.ServletContainer< / servlet-class> 
< load-on-startup> 1< / load-on-startup> 
 
 
< / servlet> 
< servlet-mapping> 
< servlet-name> TaskRestService< / servlet-name> 
< url-pattern> / services / *< / url-pattern> 
< / servlet-mapping> 
  

解决方案

JAX-RS注释企业bean在独立或者不包含在EAR中的单独ejb-jar文件。

见下文

http://pic.dhe.ibm.com/infocenter/wasinfo/v8r0/index.jsp?topic=%2Fcom.ibm.websphere.nd.iseries.doc%2Finfo%2Fiseriesnd%2Fae ％2Ftwbs_jaxrs_ejb_localinterface.html

In J2EE 6 you can expose your EJB session bean as a REST web service as below

@Stateless
@Path("/test")
public class TestSessionBean {
  @GET
  @Produces("application/xml")
  public String getTest() {
    return "<?xml version='1.0' encoding='UTF-8'?><val>test session bean</val>";
  }
}

This works when I packaged the EJB in the .war, however, when I try to package my project into separate web and ejb modules inside an EAR I get an HTML 404 not found error.

Can someone please explain?

I'm using Glassfish v3

Here is my web.xml

<servlet>
    <servlet-name>TaskRestService</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
  <load-on-startup>1</load-on-startup>


</servlet>
<servlet-mapping>
  <servlet-name>TaskRestService</servlet-name>
<url-pattern>/services/*</url-pattern>
</servlet-mapping>

解决方案

JAX-RS annotated enterprise beans in a stand-alone or in a separate ejb-jar file that is included in an EAR is not supported.

See below

http://pic.dhe.ibm.com/infocenter/wasinfo/v8r0/index.jsp?topic=%2Fcom.ibm.websphere.nd.iseries.doc%2Finfo%2Fiseriesnd%2Fae%2Ftwbs_jaxrs_ejb_localinterface.html

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