DUBBO 日志过滤器，输出dubbo 接口调用入参、出参等信息

曾经终败给现在 2023-09-23 18:56 57阅读 0赞

①自定义一个过滤器 DubboLoggerFilter.java

import org.apache.dubbo.rpc.*;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.fastjson.JSON;
    
    /**
     * @Author: JCccc
     * @Description: dubbo请求和响应拦截(记录请求参数和响应结果和时长)
     * @Date: Create in 19:03 2021/1/26
     */
    public class DubboLoggerFilter implements Filter {
        protected Logger logger = LoggerFactory.getLogger(getClass());
        /**
         * rpc日志最长字符串
         */
        private final static Integer MAX_LOG_LENGTH=5000;
        /**
         * rpc日志超过长度截取长度
         */
        private final static Integer REMAINING_LOG_LENGTH=1000;
        @Override
        public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
    
            String methodName = invocation.getMethodName();
            Object[] arguments = invocation.getArguments();
            String className = invoker.getInterface().getName();
            String callMethod = className + "." + methodName;
            String argsJson = JSON.toJSONString(arguments);
            logger.info("rpc接口callMethod:{}>>入参:{}", callMethod, argsJson);
            long start = System.currentTimeMillis();
            AsyncRpcResult result = (AsyncRpcResult)invoker.invoke(invocation);
            if(result.hasException()){
                logger.info("rpc接口callMethod:{},接口耗时:{},异常:{},", callMethod,  System.currentTimeMillis() - start,result.getException().getMessage());
            } else {
                Object resultString = JSON.toJSON(result.getAppResponse().getValue());
                if(resultString!=null&&resultString.toString().length()>MAX_LOG_LENGTH){
                    resultString=resultString.toString().substring(0,REMAINING_LOG_LENGTH)+"...";
                }
                logger.info("rpc接口callMethod:{},出参:{},接口耗时:{}", callMethod,resultString , System.currentTimeMillis() - start);
            }
            return result;
    
        }
    }

② 加上配置

![87aba927a9a545ed81bb97f0afcf9b60.png][]

[87aba927a9a545ed81bb97f0afcf9b60.png]: https://img-blog.csdnimg.cn/87aba927a9a545ed81bb97f0afcf9b60.png