Dubbo多协议

原文地址：http://dubbo.io/User+Guide-zh.htm#UserGuide-zh-多协议

多协议

(+) (#)

可以自行扩展协议，参见：协议扩展

(1) 不同服务不同协议

比如：不同服务在性能上适用不同协议进行传输，比如大数据用短连接协议，小数据大并发用长连接协议。

consumer.xml

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1. <?xml version="1.0" encoding="UTF-8"?>  
2. <beans xmlns="http://www.springframework.org/schema/beans"  
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.     xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"  
5.     xsi:schemaLocation="http://www.springframework.org/schema/beans                                                                                       http://www.springframework.org/schema/beans/spring-beans.xsd                                                                      http://code.alibabatech.com/schema/dubbo                                                                                          http://code.alibabatech.com/schema/dubbo/dubbo.xsd">  
6.    
7.     <dubbo:application name="world"  />  
8.     <dubbo:registry id="registry" address="10.20.141.150:9090" username="admin" password="hello1234" />  
9.    
10.     <!-- 多协议配置 -->  
11.     <dubbo:protocol name="dubbo" port="20880" />  
12.     <dubbo:protocol name="rmi" port="1099" />  
13.    
14.     <!-- 使用dubbo协议暴露服务 -->  
15.     <dubbo:service interface="com.alibaba.hello.api.HelloService" version="1.0.0" ref="helloService" protocol="dubbo" />  
16.     <!-- 使用rmi协议暴露服务 -->  
17.     <dubbo:service interface="com.alibaba.hello.api.DemoService" version="1.0.0" ref="demoService" protocol="rmi" />  
18.    
19. </beans>  

(2) 多协议暴露服务

比如：需要与http客户端互操作

consumer.xml

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1. <span style="font-weight: normal;"><?xml version="1.0" encoding="UTF-8"?>  
2. <beans xmlns="http://www.springframework.org/schema/beans"  
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.     xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"  
5.     xsi:schemaLocation="http://www.springframework.org/schema/beans                                                                                       http://www.springframework.org/schema/beans/spring-beans.xsd                                                                      http://code.alibabatech.com/schema/dubbo                                                                                          http://code.alibabatech.com/schema/dubbo/dubbo.xsd">  
6.    
7.     <dubbo:application name="world"  />  
8.     <dubbo:registry id="registry" address="10.20.141.150:9090" username="admin" password="hello1234" />  
9.    
10.     <!-- 多协议配置 -->  
11.     <dubbo:protocol name="dubbo" port="20880" />  
12.     <dubbo:protocol name="hessian" port="8080" />  
13.    
14.     <!-- 使用多个协议暴露服务 -->  
15.     <dubbo:service id="helloService" interface="com.alibaba.hello.api.HelloService" version="1.0.0" protocol="dubbo,hessian" />  
16.    
17. </beans></span>