Spring Cloud Alibaba 微服务架构实战【19章完整版】笔记汇总 MVC config配置

没有实战过微服务架构的人，不能说真懂微服务。因为除了技术的实现，这其中还涉及了难以量化的业务拆分和组件化思想。这门课就带大家以电商工程为例，基于Spring Cloud / SpringCloud Alibaba ，
融合常用组件/中间件，进行微服务架构设计和开发，获取真正的企业级微服务解决方案。

链接：https://pan.baidu.com/s/1HpPt-NmcH7uk7SqDxlERrQ 
提取码：xtdd 

链接：https://pan.baidu.com/s/1Ypi4RAch5EXivNc5TvNfpQ 
提取码：9gl1

package com.imooc.ecommerce.advice;

import com.imooc.ecommerce.annotation.IgnoreResponseAdvice;
import com.imooc.ecommerce.vo.CommonResponse;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 * <h1>实现统一响应</h1>
 * */
@RestControllerAdvice(value = "com.imooc.ecommerce")
public class CommonResponseDataAdvice implements ResponseBodyAdvice<Object> {

    /**
     * <h2>判断是否需要对响应进行处理</h2>
     * */
    @Override
    @SuppressWarnings("all")
    public boolean supports(MethodParameter methodParameter,
                            Class<? extends HttpMessageConverter<?>> aClass) {

        if (methodParameter.getDeclaringClass()
                .isAnnotationPresent(IgnoreResponseAdvice.class)) {
            return false;
        }

        if (methodParameter.getMethod().isAnnotationPresent(IgnoreResponseAdvice.class)) {
            return false;
        }

        return true;
    }

    @Override
    @SuppressWarnings("all")
    public Object beforeBodyWrite(Object o, MethodParameter methodParameter,
                                  MediaType mediaType,
                                  Class<? extends HttpMessageConverter<?>> aClass,
                                  ServerHttpRequest serverHttpRequest,
                                  ServerHttpResponse serverHttpResponse) {

        // 定义最终的返回对象
        CommonResponse<Object> response = new CommonResponse<>(0, "");

        if (null == o) {
            return response;
        } else if (o instanceof CommonResponse) {
            response = (CommonResponse<Object>) o;
        } else {
            response.setData(o);
        }

        return response;
    }
}

package com.imooc.ecommerce.advice;

import com.imooc.ecommerce.vo.CommonResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import javax.servlet.http.HttpServletRequest;

/**
 * <h2>全局异常捕获处理</h2>
 * */
@Slf4j
@RestControllerAdvice
public class GlobalExceptionAdvice {

    @ExceptionHandler(value = Exception.class)
    public CommonResponse<String> handlerCommerceException(
            HttpServletRequest req, Exception ex
    ) {

        CommonResponse<String> response = new CommonResponse<>(
                -1, "business error"
        );
        response.setData(ex.getMessage());
        log.error("commerce service has error: [{}]", ex.getMessage(), ex);
        return response;
    }
}

链接：https://pan.baidu.com/s/1Ypi4RAch5EXivNc5TvNfpQ 
提取码：9gl1