从openejb打JAX-RS 2电话？

Question

我们运行Websphere 9和openejb 4.7.2作为应用服务器。Websphere同时托管REST服务和调用REST服务。

我们现在想在openejb中调用和托管服务。我们从呼叫REST服务开始。

我想知道，为了加载javax.ws.rs.client.Client，我们应该在类路径中包含哪些jar？

相同的类在websphere中工作很好(没有任何修改)，但这是我们在启动时从openejb获得的堆栈跟踪：

java.lang.NoClassDefFoundError:
Could not fully load class: my.class.RESTClientBean due to:javax.ws.rs.client.Client in classLoader:

org.apache.openejb.core.TempClassLoader@ba08782 at org.apache.xbean.finder.ClassFinder.(ClassFinder.java:136) at org.apache.xbean.finder.ClassFinder.(ClassFinder.java:127) at org.apache.openejb.config.rules.CheckCallbacks.validate(CheckCallbacks.java:85) at org.apache.openejb.config.rules.ValidationBase.validate(ValidationBase.java:50) at org.apache.openejb.config.AppValidator.validate(AppValidator.java:101)在org.apache.openejb.config.ValidateModules.deploy(ValidateModules.java:38) at org.apache.openejb.config.ConfigurationFactory$Chain.deploy(ConfigurationFactory.java:403) at org.apache.openejb.config.ConfigurationFactory.configureApplication(ConfigurationFactory.java:971) at org.apache.openejb.config.ConfigurationFactory.configureApplication(ConfigurationFactory.java:832) at org.apache.openejb.config.ConfigurationFactory.getOpenEjbConfiguration(ConfigurationFactory.java:546) at org.apache.openejb.config.ConfigurationFactory.getOpenEjbConfiguration(ConfigurationFactory.java:591) at org.apache.openejb.assembler.classic.Assembler.getOpenEjbConfiguration(Assembler.java:459) at org.apache.openejb.assembler.classic.Assembler.build(Assembler.java:438) at org.apache.openejb.OpenEJB$Instance.(OpenEJB.java:150) at org.apache.openejb.OpenEJB$Instance.(OpenEJB.java:67) at org.apache.openejb.OpenEJB.init(OpenEJB.java:298)在org.apache.openejb.OpenEJB.init(OpenEJB.java:278) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55) at java.lang.reflect.Method.invoke(Method.java:508) at org.apache.openejb.loader.OpenEJBInstance.init(OpenEJBInstance.java:36) at org。apache.openejb.core.LocalInitialContextFactory.init(LocalInitialContextFactory.java:98) at org.apache.openejb.core.LocalInitialContextFactory.init(LocalInitialContextFactory.java:62) at org.apache.openejb.core.LocalInitialContextFactory.getInitialContext(LocalInitialContextFactory.java:46) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:695) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:324) at javax.naming.InitialContext.init(InitialContext.java:255) atjavax.naming.InitialContext.(InitialContext.java:227) at my.calling.Util.init(Util.java:199)

简化代码示例：

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.core.Response;
...
private static void start() {
        Client client = ClientBuilder.newClient();
        Response response = client.target(URI + "abc?code=41").request().get();
        int status = response.getStatus();
        System.out.println("Status code: " + status);
    }

Answer 1

EJB和JaxRS是两种不同的规范。OpenEJB实现了EJB规范。要使用RESTFul API进行JaxRS服务调用，您需要一个实现JaxRS规范的库。泽西岛就是这样一个图书馆。看看这里-

泽西下载

您还可以考虑其他JaxRS实现，如Resteasy、Restlet等。