給所有請(qǐng)求添加用戶身份

微服務(wù)獲取用戶身份

網(wǎng)關(guān)已經(jīng)給所有請(qǐng)求添加了用戶身份，也就是authorization頭信息。

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創(chuàng)建ThreadLocal工具類 :

package com.hmall.order.utils;

public class UserHolder {
    private static final ThreadLocal<Long> tl = new ThreadLocal<>();

    public static void setUser(Long userId) {
        tl.set(userId);
    }

    public static Long getUser() {
        return tl.get();
    }

    public static void removeUser() {
        tl.remove();
    }
}

創(chuàng)建攔截器:?

package com.hmall.order.interceptor;

import com.hmall.order.utils.UserHolder;
import org.apache.commons.lang.StringUtils;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@slf4j
public class UserInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //1.獲取請(qǐng)求頭
        String authorization = request.getHeader("authorization");
        if (StringUtils.isBlank(authorization)) {
         
         log.warn("非法用戶訪問!請(qǐng)求路徑:{}",request.getRequestURI());
            //沒有用戶信息,未登錄
            throw new RuntimeException("用戶未登錄");            
            //或者 return false; response.setStatus(403);
        }
        //2.轉(zhuǎn)換用戶id
        Long userId = Long.valueOf(authorization);
        //3.存入ThreadLocal
        UserHolder.setUser(userId);
        //4.放行
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        //用完清理掉
        UserHolder.removeUser();
    }
}

將攔截器注冊(cè)到SpringMvc,讓它生效:

package com.hmall.order.config;

import com.hmall.order.interceptor.UserInterceptor;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class MvcConfig implements WebMvcConfigurer {
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        //默認(rèn)的攔截路徑就是/**  ,excludePathPatterns()是不用攔截的路徑
//      registry.addInterceptor(new UserInterceptor()).addPathPatterns("/**").excludePathPatterns();
      registry.addInterceptor(new UserInterceptor());
    }
}

?將以上代碼(攔截器,config,utils) 放到哪個(gè)微服務(wù)中,哪個(gè)微服務(wù)/**路徑就會(huì)有攔截功能

沒有用戶信息的請(qǐng)求將會(huì)被攔截

給所有有feign的請(qǐng)求,將用戶信息添加請(qǐng)求頭:

package com.hmall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;

public class MyFeignInterceptor implements RequestInterceptor {
    @Override
    public void apply(RequestTemplate requestTemplate) {
        requestTemplate.header("authorization","2");
    }
}

?配置好后通過路徑訪問的將被攔截,但是通過網(wǎng)關(guān)的就可以訪問:

http://localhost:8083/order/123865420?被攔截?

http://localhost:10010/order/123865420?可訪問

如果想不從網(wǎng)關(guān),實(shí)現(xiàn)服務(wù)之間調(diào)用服務(wù), 將controller層的?被調(diào)用的方法開放一個(gè)接口到feign.

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然后再調(diào)用者的啟動(dòng)類添加?:上面的包路徑要填寫一致

注:(記得導(dǎo)feign的包到服務(wù)的pom.xml中)?

這樣因?yàn)閒eign請(qǐng)求頭有用戶信息通過feign之間調(diào)用服務(wù)就不會(huì)收攔截?

?文章來源地址http://www.zghlxwxcb.cn/news/detail-491199.html

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到了這里，關(guān)于登錄用戶信息獲取 網(wǎng)關(guān)+攔截器+feign請(qǐng)求添加請(qǐng)求頭的文章就介紹完了。如果您還想了解更多內(nèi)容，請(qǐng)?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！