java - Feign Client 从 Jhipster UAA 到微服务网关应用程序

Question

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 inter service communication在 Jhipster 微服务文档中有描述。

• 我遇到的第一个问题是我在 UAA 应用程序中没有此接口(interface) @AuthorizedFeignClient。
• 其次，我从未使用 @FeignClient 从 uaa 成功创建到 gw-app。

除了与假客户端的通信/配置问题之外，我还担心在没有建立 session (新用户注册)时这将如何工作，然后我有另一个用例，我有一个来自用户的现有 session -管理屏幕(当管理员正在创建新用户时)

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"
    ]
  }
}

客户端代码

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);

}

联系方式

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;
    }
}

Answer 1

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。

我想 Feign 客户端最适合微服务之间的服务间通信，而不是网关和微服务之间的通信。希望这对您有所帮助。

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