DUBBO 日志过滤器,输出dubbo 接口调用入参、出参等信息(最新推荐)

<!-- 消费方调用过程拦截 -->
<dubbo:reference filter="xxx, yyy" />

<!-- 消费方调用过程默认拦截器，将拦截所有reference -->
<dubbo:consumer filter="xxx, yyy" />

<!-- 服务提供方调用过程拦截 -->
<dubbo:service filter="xxx, yyy" />

<!-- 服务提供方调用过程默认拦截器，将拦截所有service -->
<dubbo:provider filter="xxx, yyy" />

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;
 
    }
}