调用ejb+Resteasy的rest服务报错：Could not find MessageBodyWriter

Could not find MessageBodyWriter for response object of type: java.util.ArrayList

解决办法：war包要包含提供rest服务的ejb LOCAL接口类

我的打包参考：

1、build.ejblocal.xml片段

<target name="ejb-local.jar"><jar jarfile="${temp.dir}/ejb-local.jar"><fileset dir="./${classes.dir}"><include name="**/IHelloWorldLocal.class" /><include name="**/Book.class" /><!--include name="**/jboss-deployment-structure.xml" /--></fileset></jar></target>

说明：IHelloWorldLocal是ejb LOCAL接口，包含rest声明，类中有一个方法，返回值为List<Book>；Book是vo类。打包生成ejb-local.jar

2、build.ejbimpl.xml片段

<target name="ejb-impl.jar"><jar jarfile="${temp.dir}/ejb-impl.jar"><fileset dir="./${classes.dir}"><include name="**/HelloWorldBean.class" /><include name="**/jboss-deployment-structure.xml" /></fileset></jar></target>

说明：HelloWorldBean是IHelloWorldLocal的实现类。打包生成ejb-impl.jar。

jboss-deployment-structure.xml如下，声明了对ejb-local.jar的依赖

<?xml version="1.0" encoding="UTF-8"?><jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.1">  <deployment>    <dependencies><module name="deployment.ejb-local.jar" />    </dependencies>      </deployment></jboss-deployment-structure>

3、build.war.xml片段

        <target name="deploy-war"><jar jarfile="${temp.dir}/rest.war"><fileset dir="./web/"><include name="**/IHelloWorldLocal.class" /><include name="**/web.xml" /><include name="WEB-INF/jboss-deployment-structure.xml" /></fileset></jar></target>

说明：如果不包含<include name="**/IHelloWorldLocal.class" />，调用rest服务就会报上面的错误
web.xml中Resteasy的配置：

  <context-param><param-name>resteasy.jndi.resources</param-name><param-value>java:global/ejb-impl/HelloWorldBean!com.ejb.hello.IHelloWorldLocal</param-value></context-param> <context-param><param-name>resteasy.servlet.mapping.prefix</param-name><param-value>/rest</param-value></context-param> <context-param><param-name>resteasy.scan</param-name><param-value>true</param-value></context-param><listener><listener-class>org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap</listener-class></listener><servlet><servlet-name>Resteasy</servlet-name><servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class></servlet><servlet-mapping><servlet-name>Resteasy</servlet-name><url-pattern>/rest/*</url-pattern></servlet-mapping>

WEB-INF/jboss-deployment-structure.xml的配置：

<?xml version="1.0" encoding="UTF-8"?><jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.1">  <deployment>    <dependencies><module name="deployment.ejb-local.jar" /><!-- <module name="org.jboss.resteasy.resteasy-jettison-provider"/><module name="org.jboss.resteasy.resteasy-jackson-provider"/> --><module name="org.jboss.resteasy.resteasy-jaxrs" /><module name="org.jboss.resteasy.resteasy-jaxb-provider" />    </dependencies>  </deployment></jboss-deployment-structure>