从Jhipster UAA到微服务网关应用程序的Feign Client [英] Feign Client from Jhipster UAA to microservice gateway app

问题描述

我的网关(gw-app)应用程序中有一个联系人实体，每次在UAA应用程序中注册新用户时，我都想创建一个条目.我一直在尝试使用Jhipster中所述的内部服务通信微服务文档.

I have a Contact Entity in my gateway(gw-app) app and I would like to create a entry every time a new user is registered in the UAA app. I have been trying to use the inter service communication described in Jhipster documentation for microservices.

• 我在这里遇到的第一个问题是，我在UAA应用程序中没有此界面@AuthorizedFeignClient.
• 第二，我从来没有使用@FeignClient从uaa到gw-app取得成功.

• Fist problem I have here is I don't have this interface @AuthorizedFeignClient in the UAA app.
• Second, I never got a success creation from uaa to gw-app using @FeignClient.

除了与假客户端的通信/配置问题外，我还担心在没有会话建立(新用户注册)时这将如何工作，然后又有一个用例，其中有来自用户的现有会话管理屏幕(当管理员创建新用户时)

Beside having the communication/configuration issues with the feign client I have some concerns about how this will work when there is no session stablished(new user registering) and then I have another use case where I have an existing session from the user-management screen (when an admin is creating a new user)

UAA配置

{
  "generator-jhipster": {
    "promptValues": {
      "packageName": "com.uaa.auth",
      "nativeLanguage": "es"
    },
    "jhipsterVersion": "4.13.3",
    "baseName": "UAA",
    "packageName": "com.agriket.auth",
    "packageFolder": "com/uaa/auth",
    "serverPort": "9999",
    "authenticationType": "uaa",
    "cacheProvider": "hazelcast",
    "enableHibernateCache": true,
    "websocket": false,
    "databaseType": "sql",
    "devDatabaseType": "mysql",
    "prodDatabaseType": "mysql",
    "searchEngine": "elasticsearch",
    "messageBroker": false,
    "serviceDiscoveryType": "eureka",
    "buildTool": "gradle",
    "enableSocialSignIn": false,
    "enableSwaggerCodegen": false,
    "jwtSecretKey": "8e4167f67e9f8d85cc35b70181a828c691374e58",
    "enableTranslation": true,
    "applicationType": "uaa",
    "testFrameworks": [],
    "jhiPrefix": "jhi",
    "nativeLanguage": "es",
    "languages": [
      "es",
      "en"
    ],
    "clientPackageManager": "yarn",
    "skipClient": true
  }
}

网关应用程序配置

{
  "generator-jhipster": {
    "promptValues": {
      "packageName": "com.app.gw",
      "nativeLanguage": "es"
    },
    "jhipsterVersion": "4.13.3",
    "baseName": "gwApp",
    "packageName": "com.agriket.chat",
    "packageFolder": "com/app/gw",
    "serverPort": "9085",
    "authenticationType": "uaa",
    "uaaBaseName": "UAA",
    "cacheProvider": "hazelcast",
    "enableHibernateCache": true,
    "websocket": "spring-websocket",
    "databaseType": "sql",
    "devDatabaseType": "mysql",
    "prodDatabaseType": "mysql",
    "searchEngine": "elasticsearch",
    "messageBroker": false,
    "serviceDiscoveryType": "eureka",
    "buildTool": "gradle",
    "enableSocialSignIn": false,
    "enableSwaggerCodegen": false,
    "clientFramework": "angularX",
    "useSass": false,
    "clientPackageManager": "yarn",
    "applicationType": "gateway",
    "testFrameworks": [],
    "jhiPrefix": "jhi",
    "enableTranslation": true,
    "nativeLanguage": "es",
    "languages": [
      "es",
      "en"
    ]
  }
}

客户代码

package com.uaa.auth.service.restClient;

import com.uaa.auth.service.restClient.Contact;
import org.springframework.cloud.netflix.feign.FeignClient;
import org.springframework.web.bind.annotation.*;

@FeignClient(name = "gwApp")
@RequestMapping("/api")
public interface ContactClient {

    @PostMapping("/contacts")
    Contact createContact(@RequestBody Contact contact);

    @GetMapping("/contacts/{id}")
    Contact getContact(@PathVariable(name = "id") Long id);

}

联系

public class Contact {

    private Long id;

    private String login;

    private String firstName;

    private String lastName;


    public Contact(User user) {
        this.id = user.getId();
        this.firstName = user.getFirstName();
        this.lastName = user.getLastName();
    }

    public Long getId() {
        return id;
    }

    public String getLogin() {
        return login;
    }

    public String getFirstName() {
        return firstName;
    }

    public String getLastName() {
        return lastName;
    }
}

推荐答案

要在您的项目中包含Feign，请使用组org.springframework.cloud和工件ID spring-cloud-starter-openfeign的启动器.

To include Feign in your project use the starter with group org.springframework.cloud and artifact id spring-cloud-starter-openfeign.

我认为Feign客户端最适合微服务之间而不是网关和微服务之间的服务间通信.希望对您有帮助.

I suppose Feign client is best suited for inter service communication between microservices, not between gateway and microservice. Hope this will help you.

https://cloud.spring.io /spring-cloud-netflix/multi/multi_spring-cloud-feign.html

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