dubbo学习（七）多版本配置

朱雀 2022-12-19 14:29 147阅读 0赞

# 多版本配置 #

## 1. 修改服务提供者 user实现类 ##

> 1.1 实现类 UserServiceImpl 版本1.0

@DubboService(version = "1.0")
    @Service
    public class UserServiceImpl implements UserService { 
    
        /** * @param id 查询用户列表 * @return */
        @Override
        public List<Map> getUserList(String id) { 
            List<Map> returnList = new ArrayList<>();
    
            Map<String,Object> item = new HashMap<>();
            item.put("id",id);
            item.put("name","1.0版本");
            item.put("password","123456");
            returnList.add(item);
           /* try { Thread.sleep(4000); } catch (InterruptedException e) { e.printStackTrace(); }*/
            return returnList;
        }
    }

> 1.2 实现类 UserService2Impl 版本2.0

@DubboService(version = "2.0")
    @Service
    public class UserService2Impl implements UserService { 
    
        /** * @param id 查询用户列表 * @return */
        @Override
        public List<Map> getUserList(String id) { 
            List<Map> returnList = new ArrayList<>();
    
            Map<String,Object> item = new HashMap<>();
            item.put("id",id);
            item.put("name","2.0版本");
            item.put("password","123456");
            returnList.add(item);
           /* try { Thread.sleep(4000); } catch (InterruptedException e) { e.printStackTrace(); }*/
            return returnList;
        }
    }

## 2. 修改服务消费者 order ##

@DubboReference(check = false,timeout = 3000,retries = 3,version = "1.0")
        private UserService userService;

@DubboReference(check = false,timeout = 3000,retries = 3,version = "2.0")
        private UserService userService;

## 3. 调用 ##

http://localhost:8084/order/getUserInfo?id=1  
返回：\[\{“password”:“123456”,“name”:“1.0版本”,“id”:“1”\}\]

http://localhost:8084/order/getUserInfo?id=1  
返回：\[\{“password”:“123456”,“name”:“2.0版本”,“id”:“1”\}\]