Cloud Foundry Spring Boot 应用程序中的连接被拒绝错误答案

【问题标题】：Connection Refused Error in Cloud Foundry Spring Boot applicationCloud Foundry Spring Boot 应用程序中的连接被拒绝错误
【发布时间】：2018-01-30 03:33:01
【问题描述】：

我一直面临在 Pivotal Cloud Web Foundry 中部署 Spring Boot 应用程序的问题。我不断收到此错误：

 2018-01-29T22:18:50.84-0500 [HEALTH/0] ERR Failed to make HTTP request to '/' on port 8080: connection refused
 2018-01-29T22:18:50.84-0500 [CELL/0] ERR Timed out after 15s: health check never passed.

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.stargate.transferfund</groupId>
<artifactId>TransferFund</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>TransferFund</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.9.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
    <startClass>org.springframework.boot.SpringApplication</startClass>
    <maven.test.skip>true</maven.test.skip>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <!-- marked the embedded servlet container as provided -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <!-- JMS related dependencies -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-activemq</artifactId>
        <version>1.5.9.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.apache.activemq</groupId>
        <artifactId>activemq-broker</artifactId>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

控制器类

@Controller
public class TestController {

@RequestMapping(value="/", method=RequestMethod.GET)
public ResponseEntity sayHello() {
    return new ResponseEntity("Hello world", HttpStatus.ACCEPTED);
}
}

应用

@SpringBootApplication
public class TransferFundApplication extends SpringBootServletInitializer {

public static void main(String[] args) {
    SpringApplication.run(TransferFundApplication.class, args);
}

/**
 * Used when run as WAR
 */
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
    return builder.sources(TransferFundApplication.class);
}
}

manifest.yml

---
applications:
- name: target
  path: target/TransferFund-0.0.1-SNAPSHOT.jar
  health-check-type: http
  buildpack: https://github.com/cloudfoundry/java-buildpack.git

由于某些原因，似乎未检测到端口 8080。我尝试将运行状况检查类型更改为进程和端口。当我将其更改为处理时，它可以工作，但不再可以访问端点。需要一些帮助来解决问题

【问题讨论】：

几个快速说明： 1.) 不要指向 buildpack 的 master 分支，因为它可能会更改/中断。您总是希望使用 PCF 平台随附的稳定版本或 buildpack。 2.) 将健康检查设置为端口。调试起来会更容易，因为应用程序需要做的就是成功启动以通过健康检查。完成第 1 步和第 2 步后，获取从您cf push 到应用程序崩溃的那一刻的全套日志并将其发布在此处。

标签： java spring spring-boot cloud-foundry

【解决方案1】：

请在添加执行器的以下依赖后尝试：

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

还将以下内容添加到 manifest.yml 中：

health-check-http-endpoint: /info
health-check-type: http

我认为这应该可以解决问题。

【讨论】：