由于 java.net.ConnectException，无法找到 PropertySource：连接被拒绝

Posted 2023-03-08

【中文标题】由于 java.net.ConnectException，无法找到 PropertySource：连接被拒绝

【英文标题】：Could not locate PropertySource because of java.net.ConnectException: Connection refused

【发布时间】：2018-12-25 19:43:24

【问题描述】：

我创建了一个 docker 镜像并将其推送到 docker hub。现在，我尝试使用docker-compose 在远程机器上运行它，但出现以下错误。

java.lang.IllegalStateException: Could not locate PropertySource and the fail fast property is set, failing
my-test_1  |    at org.springframework.cloud.config.client.ConfigServicePropertySourceLocator.locate(ConfigServicePropertySourceLocator.java:132)
my-test_1  |    at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:93)
my-test_1  |    at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:567)
my-test_1  |    at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:338)
my-test_1  |    at org.springframework.boot.SpringApplication.run(SpringApplication.java:301)
my-test_1  |    at net.ptidej.seodin.SeodinApp.main(SeodinApp.java:68)
my-test_1  |    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
my-test_1  |    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
my-test_1  |    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
my-test_1  |    at java.lang.reflect.Method.invoke(Method.java:498)
my-test_1  |    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
my-test_1  |    at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
my-test_1  |    at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
my-test_1  |    at org.springframework.boot.loader.WarLauncher.main(WarLauncher.java:59)
my-test_1  | Caused by: org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://localhost:8761/config/seodin/prod/master": Connection refused (Connection refused); nested exception is java.net.ConnectException: Connection refused (Connection refused)
my-test_1  |    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:674)
my-test_1  |    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:621)
my-test_1  |    at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:539)
my-test_1  |    at org.springframework.cloud.config.client.ConfigServicePropertySourceLocator.getRemoteEnvironment(ConfigServicePropertySourceLocator.java:172)
my-test_1  |    at org.springframework.cloud.config.client.ConfigServicePropertySourceLocator.locate(ConfigServicePropertySourceLocator.java:93)
my-test_1  |    ... 13 common frames omitted
my-test_1  | Caused by: java.net.ConnectException: Connection refused (Connection refused)
my-test_1  |    at java.net.PlainSocketImpl.socketConnect(Native Method)
my-test_1  |    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
my-test_1  |    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
my-test_1  |    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
my-test_1  |    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
my-test_1  |    at java.net.Socket.connect(Socket.java:589)
my-test_1  |    at java.net.Socket.connect(Socket.java:538)
my-test_1  |    at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
my-test_1  |    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
my-test_1  |    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
my-test_1  |    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
my-test_1  |    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
my-test_1  |    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
my-test_1  |    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
my-test_1  |    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
my-test_1  |    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
my-test_1  |    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
my-test_1  |    at org.springframework.http.client.SimpleBufferingClientHttpRequest.executeInternal(SimpleBufferingClientHttpRequest.java:78)
my-test_1  |    at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48)
my-test_1  |    at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53)
my-test_1  |    at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:112)
my-test_1  |    at org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$GenericRequestHeaderInterceptor.intercept(ConfigServicePropertySourceLocator.java:237)
my-test_1  |    at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:88)
my-test_1  |    at org.springframework.http.client.InterceptingClientHttpRequest.executeInternal(InterceptingClientHttpRequest.java:72)
my-test_1  |    at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48)
my-test_1  |    at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53)
my-test_1  |    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:660)
my-test_1  |    ... 17 common frames omitted
my-test_1  | 

我猜这与其中一个配置文件中的端口有关，但我不知道是哪一个。这个错误是什么意思，我应该去哪里解决它？我将不胜感激源代码/配置文件中的任何线索/提示。谢谢。

【参考方案1】：

您的 Spring Boot 应用程序配置为从指定的 Spring Cloud Config 服务器加载属性

http://localhost:8761/config/seodin/prod/master

它看不到它。

当您在 Docker 中运行时，请确保配置服务器也在 Docker 中运行，并且您的 Spring Boot 应用程序已配置为指向该服务器（URL 不会是 localhost；它可能是容器名称如果你在 Docker 中运行配置服务器，或者外部配置服务器的 URL）

【参考方案2】：

当您在 Docker 容器内时，localhost 解析为该容器而不是 Docker Host。因此，您应该在应用程序配置中将Config Server 的IP 地址更改为Docker Host IP 地址或您的LAN IP 地址。当然，如果你的机器上有一个正在运行的Config Server，它会起作用。

【讨论】：

在哪里可以找到定义的配置服务器 IP 以将其更改为 Docker 主机？

它可以是您的 application.properties 或 bootstrap.properties 文件中的 spring.cloud.config.uri 配置。看看this link，可能会有帮助。

你的问题还有一个奇怪的地方。端口 8761 是 Eureka Discovery Server 的标准端口，端口 8888 是 Configuration Server 的标准端口。但是您的日志显示您的应用正在尝试从端口 8761 的 Configuration Server 获取其配置。