框架中dubbo配置说明：
Provider端配置如下：
<dubbo:protocol name="dubbo" host="${dubbo.host}" port="${dubbo.port}" /> <!-- 服务提供者filter,在Provider上尽量多配置Consumer端属性, 配置的覆盖规则：1) 方法级配置别优于接口级别，即小Scope优先 2) Consumer端配置 优于 Provider配置 优于 全局配置 --> <dubbo:provider retries="0" filter="resFilter,channelFilter" timeout="${dubbo.timeout}" group="${dubbo.group}" /> <dubbo:annotation /> <context:annotation-config /> <!-- 扫描包路径 --> <context:component-scan base-package="org.go,com.yc" />
重要属性说明
Consumer端配置如下
<dubbo:annotation/> <context:annotation-config/> <dubbo:consumer retries="0" filter="reqFilter" check="false" timeout="${dubbo.timeout}" group="${dubbo.group}" /> <!-- 扫描包路径 --> <context:component-scan base-package="org.go,com.yc"/>
重要属性说明
服务消费端Filter
负责MsgId的生产，以及将部分信息注入到RpcContext中去。
@Override public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException { Result result = null; boolean flag = false; try { flag = Context.getMsgId() == null ? flag : true; Stopwatch started = Stopwatch.createStarted();// 开始计时 RpcContext rpcContext = RpcContext.getContext(); // 获取上下文 Context.initialMsgId();// 初始化msgId rpcContext.setAttachment(MSG_ID, Context.getMsgId()); String tokenId = setRpcAttachment(rpcContext);// 设置设置传递的RPC参数 result = invoker.invoke(invocation);// 调用RPC接口 String serverIP = RpcContext.getContext().getRemoteHost();// 获取远程RPC地址 Stopwatch stop = started.stop(); logInfo(serverIP, Context.getMsgId(), tokenId, String.valueOf(stop.elapsed(TimeUnit.MILLISECONDS))); } catch (RpcException rpcException) { throw rpcException; } finally { if (!flag) { Context.clearAllLocal(); } } return result; }
服务提供端Filter
处理消费端的RpcContext信息，并在业务方法调用完成后进行异常处理，以及输出日志
public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException { Result result = null; try { // 初始化当前上下文 RpcContext rpcContext = RpcContext.getContext(); String tokenId = rpcContext.getAttachment(TOKENID); String msgId = rpcContext.getAttachment(MSG_ID); String clientIP = RpcContext.getContext().getRemoteHost();// 请求IP信息 String application = rpcContext.getUrl().getParameter(APPLICATION); // demo-provider服务提供者名称 String reqUrl = rpcContext.getUrl().getParameter(CLASS_NAME); // 服务响应者的具体类 String version = rpcContext.getUrl().getParameter(VERSION);// 服务提供者给予的版本 Context.initialRpcLocal(rpcContext, msgId); logInfo(clientIP, msgId, tokenId, application, reqUrl, version); // 真正的业务方法调用 result = invoker.invoke(invocation); RPCLogger.info("接口名称为" + RpcContext.getContext().getUrl().getServiceInterface()); RPCLogger.info("方法名称为" + RpcContext.getContext().getMethodName()); if (result.getException() != null && result.getException() instanceof GoException) { GoException goException = (GoException) result.getException(); Context.getRequestInfo().setMsgCd(goException.getCode()); ResponseDto responseDto = new ResponseDto(); responseDto.setRspCd(goException.getCode()); responseDto.setRspInf(goException.getMessage()); try { Context.getRequestInfo().setMsgCd(goException.getCode()); Context.getRequestInfo().setMsgInf(goException.getMessage()); Context.getRequestInfo().setResponseData(MAPPER.writeValueAsBytes(responseDto)); } catch (JsonProcessingException e) { RPCLogger.info("GoException format json was failed"); } } else { if (result.getException() != null) { RPCLogger.info("rpc invoke exception => " + ExceptionUtils.getStackTrace(result.getException())); } Object reObj = result.getValue(); if (reObj instanceof ResponseDto) { ResponseDto rd = (ResponseDto) reObj; String rspCode = rd.getRspCd(); if (StringUtils.isNotBlank(rspCode)) { Context.getRequestInfo().setMsgCd(rspCode); } } else if (reObj != null) { Context.getRequestInfo().setMsgCd(SysCode.SUCCESS); } try { Context.getRequestInfo().setResponseData(MAPPER.writeValueAsBytes(reObj)); } catch (JsonProcessingException e) { RPCLogger.info("Dubbo result format json was failed"); } } afterCompletion(clientIP, tokenId); } catch (RpcException e) { throw e; } finally { Context.clearAllLocal(); } return result; }
