一，Remote EJB
服务接口定义:
1 package yjmyzz.ejb.server.helloworld; 2 3 public interface HelloWorldService { 4 5 public String sayHello(String name); 6 7 }
实现:
1 package yjmyzz.ejb.server.helloworld; 2 3 import javax.annotation.security.RolesAllowed; 4 import javax.ejb.Remote; 5 import javax.ejb.Stateless; 6 7 @Stateless 8 @Remote(HelloWorldService.class) 9 @RolesAllowed({ "guest" }) 10 public class HelloWorldBean implements HelloWorldService { 11 12 public String sayHello(String name) { 13 return "hello , " + name + " , welcome to EJB's world!"; 14 } 15 16 }
注意: @RoleAllowed({"guest"}) 该注解表示只有guest这个角色的用户才能调用HelloWorldBean
对应maven的pom.xml内容如下:
<?xml version="1.0"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>yjmyzz</groupId> <artifactId>ejb-server-helloworld</artifactId> <version>1.0</version> <packaging>ejb</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <version.jboss.maven.plugin>7.4.Final</version.jboss.maven.plugin> <version.jboss.spec.javaee.6.0>3.0.2.Final</version.jboss.spec.javaee.6.0> <version.ejb.plugin>2.3</version.ejb.plugin> <maven.compiler.target>1.6</maven.compiler.target> <maven.compiler.source>1.6</maven.compiler.source> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.jboss.spec</groupId> <artifactId>jboss-javaee-6.0</artifactId> <version>${version.jboss.spec.javaee.6.0}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.jboss.spec.javax.annotation</groupId> <artifactId>jboss-annotations-api_1.1_spec</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.jboss.spec.javax.ejb</groupId> <artifactId>jboss-ejb-api_3.1_spec</artifactId> <scope>provided</scope> </dependency> </dependencies> <build> <finalName>${project.artifactId}</finalName> <plugins> <plugin> <groupId>org.jboss.as.plugins</groupId> <artifactId>jboss-as-maven-plugin</artifactId> <version>${version.jboss.maven.plugin}</version> <configuration> <filename>${project.build.finalName}.jar</filename> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-ejb-plugin</artifactId> <version>${version.ejb.plugin}</version> <configuration> <ejbVersion>3.1</ejbVersion> <generateClient>true</generateClient> </configuration> </plugin> </plugins> </build> </project>
二，EJB Client
1 package yjmyzz.ejb.client.helloworld; 2 3 import java.util.Hashtable; 4 5 import javax.naming.Context; 6 import javax.naming.InitialContext; 7 import javax.naming.NamingException; 8 9 import yjmyzz.ejb.server.helloworld.HelloWorldService; 10 11 12 public class EjbClientApp { 13 public static void main(String[] args) throws NamingException { 14 System.out.println(lookupRemoteBean().sayHello("jimmy")); 15 } 16 17 @SuppressWarnings("unchecked") 18 private static HelloWorldService lookupRemoteBean() throws NamingException { 19 @SuppressWarnings("rawtypes") 20 final Hashtable jndiProperties = new Hashtable(); 21 jndiProperties.put(Context.URL_PKG_PREFIXES, 22 "org.jboss.ejb.client.naming"); 23 final Context context = new InitialContext(jndiProperties); 24 return (HelloWorldService) context 25 .lookup("ejb:/ejb-server-helloworld/HelloWorldBean!" 26 + HelloWorldService.class.getName()); 27 } 28 }
注: lookupRemoteBean用于查找远程EJB.
jboss环境中,需要在classpath路径下放置jboss-ejb-client.properties文件,内容参考下面:
1 remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=false 2 remote.connections=default 3 remote.connection.default.host=localhost 4 remote.connection.default.port = 4447 5 remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=false 6 remote.connection.default.username=msgUser 7 remote.connection.default.password=Password1!
注: msgUser为jboss中创建的一个application user,而且属于guest组(不熟悉jboss下创建用户的朋友,可参考JMS + jboss EAP 6.2 示例 中的相关内容)
对应maven项目的pom.xml为:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>yjmyzz</groupId> <artifactId>ejb-client-helloworld</artifactId> <version>1.0</version> <packaging>jar</packaging> <name>ejb-client-helloworld</name> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>yjmyzz</groupId> <artifactId>ejb-server-helloworld</artifactId> <version>1.0</version> </dependency> <dependency> <groupId>org.jboss.spec.javax.transaction</groupId> <artifactId>jboss-transaction-api_1.1_spec</artifactId> <version>1.0.1.Final-redhat-2</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.jboss.spec.javax.ejb</groupId> <artifactId>jboss-ejb-api_3.1_spec</artifactId> <version>1.0.2.Final-redhat-2</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.jboss</groupId> <artifactId>jboss-ejb-client</artifactId> <version>1.0.21.Final-redhat-1</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.jboss.xnio</groupId> <artifactId>xnio-nio</artifactId> <version>3.0.7.GA-redhat-1</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.jboss.sasl</groupId> <artifactId>jboss-sasl</artifactId> <version>1.0.3.Final-redhat-1</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.jboss.marshalling</groupId> <artifactId>jboss-marshalling-river</artifactId> <version>1.3.16.GA-redhat-1</version> <scope>runtime</scope> </dependency> </dependencies> </project>
示例源码: remote-ejb-with-security-sample.zip
