利用dubbo的Filter记录入参参数

1、代理类

public interface IUserCenterOperation
{
    UserCenterResponse<BaseUser> findUserByid(Long userId);
}

2、实现

import org.springframework.beans.factory.annotation.Autowired;
 
import com.alibaba.dubbo.config.annotation.Service;
import com.zto.webUserCenter_userOpera.dto.UserCenterResponse;
import com.zto.webUserCenter_userOpera.dto.BaseUser;
import com.zto.webUserCenter_userOpera.manager.FindUserById;
import com.zto.webUserCenter_userOpera.service.IUserCenterOperation;
 
 
@Service(group = "userCenterOperation", timeout = 1000, version = "1.0",filter="dubboServiceFilter")
public class UserCenterOperation implements IUserCenterOperation
{
 
    @Autowired
    private FindUserById findUserById;
 
    @Override
    public UserCenterResponse<BaseUser> findUserByid(Long userId)
    {
        UserCenterResponse<BaseUser> res = null;
        res = findUserById.exce(userId);
	// 业务实现，可替换
        return res;
    }
}

3、filter

package com.zto.webUserCenter_userOpera.aop;

import com.alibaba.dubbo.rpc.*;
import com.alibaba.fastjson.JSON;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DubboServiceFilter implements Filter {
    private final static Logger logger = LoggerFactory.getLogger(DubboServiceFilter.class);
    @Override
    public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
        Result result = null;
        try {
            result = invoker.invoke(invocation);
            if (result.getException() instanceof Exception)
            {
                throw new Exception(result.getException());
            }
        } catch (Exception e) {
            logger.error("Exception:{},request{},curr error:{},msg:{}", invocation.getClass(),
                    JSON.toJSONString(invocation.getArguments()), e.toString(), ExceptionUtils.getRootCause(e));
            return result;
        } finally {
            logger.info("method:[{}],request:{}",
                    invocation.getMethodName(),JSON.toJSONString(invocation.getArguments()));
        }
        return result;
    }
}

4、在resources中创建文件
META-INF/dubbo/com.alibaba.dubbo.rpc.Filter
内容：dubboServiceFilter=com.zto.webUserCenter_userOpera.aop.DubboServiceFilter

5、application.properties 配置 添加
dubbo.provider.filter =dubboServiceFilter

6、在dubbo-provider.xml添加配置

<dubbo:service interface="com.zto.webUserCenter_userOpera.service.IUserCenterOperation" ref="demoService" filter="dubboServiceFilter" timeout = 1000 version = "1.0"/>

原文链接：https://blog.csdn.net/wangqingqi20005/article/details/78672578