Spring Integration Pub 子示例项目"Could not autowire. No beans of 'PubSubTemplate' type found."

Question

我正在检查一些 Spring 与 GCP pub sub 的集成，并且我已经克隆了他们的示例项目。我在 IDE 中收到警告/错误，我很难理解。

基本在这个classhttps://github.com/spring-cloud/spring-cloud-gcp/blob/6c95a16f7e6ad95404b4f992b5f46340e831e5cb/spring-cloud-gcp-samples/spring-cloud-gcp-integration-pubsub-json-sample/src/main/java/com/example/WebController.java#L47

package com.example;

import java.util.ArrayList;
import java.util.List;

import com.example.SenderConfiguration.PubSubPersonGateway;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.view.RedirectView;

/**
 * Provides REST endpoint allowing you to send JSON payloads to a sample Pub/Sub topic for
 * demo.
 *
 * @author Daniel Zou
 */
@RestController
public class WebController {

    private final PubSubPersonGateway pubSubPersonGateway;

    @Autowired
    @Qualifier("ProcessedPersonsList")
    private ArrayList<Person> processedPersonsList;

    public WebController(PubSubPersonGateway pubSubPersonGateway, SenderConfiguration.PubSubProjectGateway pubSubProjectGateway ) {
        this.pubSubPersonGateway = pubSubPersonGateway;
    }

    @PostMapping("/createPerson")
    public RedirectView createUser(@RequestParam("name") String name, @RequestParam("age") int age) {
        Person person = new Person(name, age);
        this.pubSubPersonGateway.sendPersonToPubSub(person);
        return new RedirectView("/");
    }

    @GetMapping("/listPersons")
    public List<Person> listPersons() {
        return this.processedPersonsList;
    }
}

我有以下错误

Could not autowire. No beans of 'PubSubPersonGateway' type found.

有人可以解释为什么我会收到此错误/警告吗？是否需要我关注？仅供参考，该项目将编译并运行正确

Answer 1

这只是一个 IDE 检查问题，仅此而已。 PubSubPersonGateway 是一个特殊的 @MessagingGateway bean，IDE 无法理解。可能最好针对 IDE 提出改进票，让他们知道 Spring 集成检查应该改进。

Spring Integration Pub 子示例项目"Could not autowire. No beans of 'PubSubTemplate' type found."

Spring Integration Pub sub sample project "Could not autowire. No beans of 'PubSubTemplate' type found."

java

spring

spring-integration