Dubbo之HelloWorld

<!-- dubbo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring</artifactId>
</exclusion>
</exclusions>
</dependency>

<!-- zkclient -->
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.5</version>
<exclusions>
<exclusion>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- zookeeper -->
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.6</version>
</dependency>

public class User implements Serializable{

private static final long serialVersionUID = 1L;

private String id;

private String userName;

private Integer age;

// setter和getter
//..
}

public interface UserService {

String saveUser(User user);

List<User> findAll();
}

@Service("userService")
public class UserServiceImpl implements UserService {

public static List<User> userList = new ArrayList<User>();

@Override
public String saveUser(User user) {
userList.add(user);
return user.getId();
}

@Override
public List<User> findAll() {
return userList;
}
}

public class Main {

public static void main(String[] args) throws IOException {

ApplicationContext ctx = new ClassPathXmlApplicationContext("spring.xml");

System.out.println("服务端:服务启动...");
System.in.read();
}
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> 
<!-- 引入配置文件 -->
<import resource="classpath:spring-*.xml"/>

<!-- 加载config.properties配置文件 -->
<context:property-placeholder ignore-unresolvable="true" location="classpath:config.properties" />

<bean id="userService" class="com.netant.service.impl.UserServiceImpl" />
</beans>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> 
<!-- 提供方应用信息，用于计算依赖关系 -->
<dubbo:application name="Dubbo_HelloWorld"  />

<!-- 注册中心暴露服务地址 -->
<dubbo:registry protocol="zookeeper" address="${zookeeper.connect}"/>

<!-- 用dubbo协议在20880端口暴露服务 -->
<dubbo:protocol name="dubbo" port="20880" />

<!-- 声明需要暴露的服务接口 -->
<dubbo:service interface="com.netant.service.UserService" ref="userService" protocol="dubbo" timeout="5000000"/>

</beans>

@Component
public class UserAccess {

@Autowired
private UserService userService;

public String saveUser(String id ,String userName ,Integer age){
User user = new User();
user.setId(id);
user.setUserName(userName);
user.setAge(age);
return userService.saveUser(user);
}

public List<User> findAllUser(){
return userService.findAll();
}

}

public class Main {

public static void main(String[] args) throws IOException {

ApplicationContext ctx = new ClassPathXmlApplicationContext("spring.xml");

UserAccess userAccess = ctx.getBean(UserAccess.class);

//      String userId = userAccess.saveUser("456", "Jack1", 20);
//
//      System.out.println("保存用户成功之后返回的userId：" + userId);

List<User> userList = userAccess.findAllUser();

for (User user : userList) {
System.out.println("遍历获取的所有用户信息:" + user.getId() + " " + user.getUserName());
}
}

}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> <!-- 扫描注解注入 -->
<context:component-scan base-package="com.netant" />

<!-- 引入配置文件 -->
<import resource="classpath:spring-*.xml"/>

<!-- 加载config.properties配置文件 -->
<context:property-placeholder ignore-unresolvable="true" location="classpath:config.properties" />

<bean id="userAccess" class="com.netant.UserAccess" />
</beans>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> 
<!-- 提供方应用信息，用于计算依赖关系 -->
<dubbo:application name="Dubbo_HelloWorld_Ref"  />

<!-- 注册中心暴露服务地址 -->
<dubbo:registry protocol="zookeeper" address="${zookeeper.connect}"/>

<!-- 用dubbo协议在20880端口暴露服务 -->
<dubbo:protocol name="dubbo" port="20881" />

<!-- 生成远程服务代理，可以和本地bean一样使用userService -->
<dubbo:reference id="userService" interface="com.netant.service.UserService" protocol="dubbo" check="false" retries="0"/>

</beans>