使用spring cloud alibaba-网关(gateway)+安全认证(springsecurity+jwt)_gateway security jwt

上一篇博客开头说到了gateway服务之前调用有些特殊，那是因为webflux和spring-webmvc；

gateway不兼容spring-webmvc所以项目创建的时候也就剔除了，剔除之后无法使用HttpServletRequest，所以之前搭建的不能简单的替换zuul，改动太大。只能将zuul从安全认证这个模块中移除，然后独立成一个模块供gateway认证时调用。

改造之前的springsecurity，移除zuul相关依赖，在UserController中新增一个接口

/**
     * 认证
     * @param token
     * @return
     */
    @RequestMapping(value = "/verificationToken",method = {RequestMethod.POST,RequestMethod.GET})
    @ResponseBody
    public ResultVO<Boolean> verificationToken(@RequestParam("token") String token){
 
        AuthUser authUser = JwtUtil.parseToken(token);
 
        authUser.getUsername();
 
        return Backtrack.success(true);
 
    }

此方法供gateway调用，Backtrack为一个统一返回和接收校验的类，用于抛请求异常。

package com.cloudalibaba.securitypermission.common.methods;
 
import com.cloudalibaba.securitypermission.common.vo.ResultVO;
 
/**
 * 返回和接收校验
 * @author wqy
 * @version 1.0
 * @date 2020/6/9 15:52
 */
public class Backtrack{
 
    /**
     * 成功的执行
     * @param t 数据体
     * @param msg 备注
     * @param <T> 泛型
     * @return
     */
    public static <T> ResultVO<T> success(T t, String msg){
 
        ResultVO<T> resultVO = new ResultVO<>();
 
        resultVO.setCode(10);
        resultVO.setData(t);
        resultVO.setMsg(msg);
 
        return resultVO;
 
    }
 
    /**
     * 成功的执行
     * @param t 数据体
     * @param <T> 泛型
     * @return
     */
    public static <T> ResultVO<T> success(T t){
 
        ResultVO<T> resultVO = new ResultVO<>();
 
        resultVO.setCode(10);
        resultVO.setData(t);
 
        return resultVO;
 
    }
 
    /**
     * 成功的执行
     * @param msg 备注
     * @param <T> 泛型
     * @return
     */
    public static <T> ResultVO<T> success(String msg){
 
        ResultVO<T> resultVO = new ResultVO<>();
 
        resultVO.setCode(10);
        resultVO.setMsg(msg);
 
        return resultVO;
 
    }
 
    /**
     * 失败的执行
     * @param t 数据体
     * @param msg 备注
     * @param <T> 泛型
     * @return
     */
    public static <T> ResultVO<T> errot(T t,String msg){
 
        ResultVO<T> resultVO = new ResultVO<>();
        resultVO.setCode(11);
        resultVO.setData(t);
        resultVO.setMsg(msg);
        return resultVO;
 
    }
 
    /**
     * 失败的执行
     * @param msg 备注
     * @param <T> 泛型
     * @return
     */
    public static <T> ResultVO<T> errot(String msg){
 
        ResultVO<T> resultVO = new ResultVO<>();
        resultVO.setCode(11);
        resultVO.setMsg(msg);
        return resultVO;
 
    }
 
    /**
     * 校验ResultVO结果
     * 如果code==10则成功其余则失败
     * @param resultVO
     * @return
     */
    public static <T> T checkData(ResultVO<T> resultVO){
 
        //判断返回结果是否是SuperEntity的子类
        //11为异常，失败
        if(resultVO.getCode()==11){
            throw new RuntimeException(resultVO.getMsg());
        }
        if(resultVO.getCode()==10){
            return resultVO.getData();
        }
        throw new RuntimeException("调用失败");
 
    }
 
    /**
     * 校验ResultVO结果
     * 如果code==10则成功其余则失败
     * @param resultVO
     * @return
     */
    public static String checkMsg(ResultVO<String> resultVO){
 
        //判断返回结果是否是SuperEntity的子类
        //11为异常，失败
        if(resultVO.getCode()==11){
            throw new RuntimeException(resultVO.getMsg());
        }
        if(resultVO.getCode()==10){
            return resultVO.getMsg();
        }
        throw new RuntimeException("调用失败");
 
    }
 
}

然后修改AccessDeniedHandler和TokenExceptionHandler，这两个类是无权限和token异常

修改response.setContentType为response.setContentType("application/json; charset=utf-8");

这样安全框架这块就算修改完了。

修改gateway，创建上文中的filter文件夹。

并创建一个filter类

package com.cloudalibaba.gateway.filter;
 
import com.cloudalibaba.gateway.common.methods.Backtrack;
import com.cloudalibaba.gateway.common.vo.ResultVO;
import com.cloudalibaba.gateway.feign.SecuritypePermissionFeign;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;
 
import java.util.Date;
import java.util.List;
 
/**
 * @author wqy
 * @version 1.0
 * @date 2020/8/1 15:23
 */
@Component
@Slf4j
public class MyLogGateWayFilter implements GlobalFilter, Ordered {
 
    @Autowired
    private SecuritypePermissionFeign securitypePermissionFeign;
 
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
 
        log.info("********come in MyLogGatewayFilter：" + new Date());
        ServerHttpRequest request = exchange.getRequest();
        System.out.println(request.getPath());
        System.out.println(request.getQueryParams());
        System.out.println(request.getHeaders().get("token"));
        HttpHeaders headers = request.getHeaders();
        List<String> strs = headers.get("token");
        //获取token并验证
        String token = strs.get(0);
        System.out.println(token);
        Boolean check = Backtrack.checkData(securitypePermissionFeign.verificationToken(token));
        System.out.println(check);
        return chain.filter(exchange);
    }
 
    @Override
    public int getOrder() {
        return 0;
    }
}

创建feign，指向securitypermission

package com.cloudalibaba.gateway.feign;
 
import com.cloudalibaba.gateway.common.vo.ResultVO;
import com.cloudalibaba.gateway.config.CustomizedConfiguration;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
 
/**
 * @author wqy
 * @version 1.0
 * @date 2020/8/1 16:04
 */
@FeignClient(value = "securitypermission")
public interface SecuritypePermissionFeign {
 
    /**
     * 验证token
     * @param token
     * @return
     */
    @RequestMapping(value = "/verificationToken",method = {RequestMethod.POST})
    ResultVO<Boolean> verificationToken(@RequestParam("token") String token);
 
}

这样按正常来说是可以进行调用了，但是！！！，这个是gateway，这样会报错（HttpMessageConverters），请求没问题，但是接受返回值的时候问题就来了，gateway没有对应的解析器去解析response（也可能是默认用错了解析器）。所以要进行一个转换。

package com.cloudalibaba.gateway.config;
 
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.cloud.gateway.filter.ratelimit.KeyResolver;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import reactor.core.publisher.Mono;
 
import java.util.Objects;
import java.util.stream.Collectors;
 
/**
 * 转换器
 * gateway通过feign调用的时候，gateway中没有相应的解析器（返回），所以会出现异常（HttpMessageConverters）
 * 然后将请求转成HttpMessageConverters即可
 * @author wqy
 */
@Configuration
public class GatewayConfig {
 
    @Bean
    KeyResolver userKeyResolver() {
        return exchange -> Mono.just(Objects.requireNonNull(exchange.getRequest().getRemoteAddress()).getAddress().getHostAddress());
    }
 
    @Bean
    @ConditionalOnMissingBean
    public HttpMessageConverters messageConverters(ObjectProvider<HttpMessageConverter<?>> converters) {
        return new HttpMessageConverters(converters.orderedStream().collect(Collectors.toList()));
    }
}

这样就可以正常的访问了。

最后奉上代码

https://github.com/WPZC/cloudalibaba