GateWay映射

时间：2024-7-9 作者：老大夫 分类： SpringCloud

使用场景：我们目前不想暴露8001端口，希望在8001真正的支付微服务，外面套一层9527网关

使用方法

在8001创建GateWay创建PayGateWayController

package com.atguigu.cloud.controller;

import cn.hutool.core.util.IdUtil;
import com.atguigu.cloud.entities.Pay;
import com.atguigu.cloud.resp.ResultData;
import com.atguigu.cloud.service.PayService;
import io.swagger.v3.oas.annotations.Operation;
import jakarta.annotation.Resource;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.TimeUnit;

/**
 * @auther zzyy
 * @create 2023-11-20 13:09
 */
@RestController
public class PayGateWayController
{
    @Resource
    PayService payService;

    @GetMapping(value = "/pay/gateway/get/{id}")
    public ResultData<Pay> getById(@PathVariable("id") Integer id)
    {
        Pay pay = payService.getById(id);
        return ResultData.success(pay);
    }

    @GetMapping(value = "/pay/gateway/info")
    public ResultData<String> getGatewayInfo()
    {
        return ResultData.success("gateway info test："+ IdUtil.simpleUUID());
    }
}

配置9527GateWay的yml

server:
  port: 9527

spring:
  application:
    name: cloud-gateway #以微服务注册进consul或nacos服务列表内
  cloud:
    consul: #配置consul地址
      host: localhost
      port: 8500
      discovery:
        prefer-ip-address: true
        service-name: ${spring.application.name}
    gateway:
      routes:
        - id: pay_routh1 #pay_routh1                #路由的ID(类似mysql主键ID)，没有固定规则但要求唯一，建议配合服务名
          uri: http://localhost:8001                #匹配后提供服务的路由地址
          predicates:
            - Path=/pay/gateway/get/**              # 断言，路径相匹配的进行路由

        - id: pay_routh2 #pay_routh2                #路由的ID(类似mysql主键ID)，没有固定规则但要求唯一，建议配合服务名
          uri: http://localhost:8001                #匹配后提供服务的路由地址
          predicates:
            - Path=/pay/gateway/info/**              # 断言，路径相匹配的进行路由

测试

之前访问：http://localhost:8001/pay/gateway/info
配置路由后：http://localhost:9527/pay/gateway/info

隐真示假，不暴露真正的服务端口

OpenFeign80端口通过网关GateWay9527访问服务提供者8001

修改PayFeign接口API


    /**
     * GateWay进行网关测试案例01
     * @param id
     * @return
     */
    @GetMapping(value = "/pay/gateway/get/{id}")
    public ResultData getById(@PathVariable("id") Integer id);

    /**
     * GateWay进行网关测试案例02
     * @return
     */
    @GetMapping(value = "/pay/gateway/info")
    public ResultData<String> getGatewayInfo();

新建OpenFeign80的OrderGateWayController

package com.atguigu.cloud.controller;

import com.atguigu.cloud.apis.PayFeignApi;
import com.atguigu.cloud.resp.ResultData;
import jakarta.annotation.Resource;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

/**
 * @auther zzyy
 * @create 2023-11-20 16:48
 */
@RestController
public class OrderGateWayController
{
    @Resource
    private PayFeignApi payFeignApi;

    @GetMapping(value = "/feign/pay/gateway/get/{id}")
    public ResultData getById(@PathVariable("id") Integer id)
    {
        return payFeignApi.getById(id);
    }

    @GetMapping(value = "/feign/pay/gateway/info")
    public ResultData<String> getGatewayInfo()
    {
        return payFeignApi.getGatewayInfo();
    }
}