org.springframework.web.client.ResourceAccessException:获取微服务中的请求时发生I/O错误

我正在从以下链接开发微服务代码：。在这个代码库中，我成功地启动了诸如

“配置服务”

，

“服务注册表”

，

“shoppingcart ui”

，

“zipkin服务器”

等服务，但当我尝试启动

“库存服务”

时，我得到了以下错误

以下错误供参考：-

org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://localhost:8200/v1/secret/inventory-service": Connect to localhost:8200 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect; nested exception is org.apache.http.conn.HttpHostConnectException: Connect to localhost:8200 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:732) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:680) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
    at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:332) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
    at org.springframework.vault.core.VaultTemplate.lambda$doRead$1(VaultTemplate.java:320) ~[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.vault.core.VaultTemplate.doWithSession(VaultTemplate.java:307) ~[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.vault.core.VaultTemplate.doRead(VaultTemplate.java:317) ~[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.vault.core.VaultTemplate.read(VaultTemplate.java:212) ~[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.vault.core.lease.SecretLeaseContainer.doGetSecrets(SecretLeaseContainer.java:545) [spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.vault.core.lease.SecretLeaseContainer.start(SecretLeaseContainer.java:357) [spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.vault.core.lease.SecretLeaseContainer.addRequestedSecret(SecretLeaseContainer.java:316) [spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.vault.core.env.LeaseAwareVaultPropertySource.loadProperties(LeaseAwareVaultPropertySource.java:147) [spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.vault.core.env.LeaseAwareVaultPropertySource.<init>(LeaseAwareVaultPropertySource.java:133) [spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.cloud.vault.config.LeasingVaultPropertySourceLocator.createVaultPropertySource(LeasingVaultPropertySourceLocator.java:151) [spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.cloud.vault.config.LeasingVaultPropertySourceLocator.createVaultPropertySource(LeasingVaultPropertySourceLocator.java:88) [spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.cloud.vault.config.VaultPropertySourceLocatorSupport.doCreatePropertySources(VaultPropertySourceLocatorSupport.java:170) [spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.cloud.vault.config.VaultPropertySourceLocatorSupport.createCompositePropertySource(VaultPropertySourceLocatorSupport.java:145) [spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.cloud.vault.config.VaultPropertySourceLocatorSupport.locate(VaultPropertySourceLocatorSupport.java:116) [spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:94) [spring-cloud-context-2.0.1.RELEASE.jar:2.0.1.RELEASE]
    at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:636) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
    at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:376) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:328) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1258) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
    at com.sivalabs.inventoryservice.InventoryServiceApplication.main(InventoryServiceApplication.java:12) [classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_162]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_162]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_162]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_162]

org.springframework.web.client.ResourceAccessException:获取请求时发生I/O错误“http://localhost:8200/v1/secret/inventory-服务“：连接到localhost:8200[localhost/127.0.0.1，localhost/0:0:0:0:0:1]失败：连接被拒绝：连接；嵌套异常为org.apache.http.conn.HttpHostConnectException:Connect to localhost:8200[localhost/127.0.0.1，localhost/0:0:0:0:0:1]失败：连接被拒绝：连接
在org.springframework.web.client.restemplate.doExecute（restemplate.java:732）~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
在org.springframework.web.client.restemplate.execute（restemplate.java:680）~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
在org.springframework.web.client.restemplate.getForObject（restemplate.java:332）~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
在org.springframework.vault.core.VaultTemplate.lambda$doRead$1（VaultTemplate.java:320）~[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.vault.core.VaultTemplate.doWithSession（VaultTemplate.java:307）~[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.vault.core.VaultTemplate.doRead（VaultTemplate.java:317）~[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.vault.core.VaultTemplate.read（VaultTemplate.java:212）~[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.vault.core.lease.SecretLeaseContainer.doGetSecrets（SecretLeaseContainer.java:545）[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.vault.core.lease.SecretLeaseContainer.start（SecretLeaseContainer.java:357）[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.vault.core.lease.SecretLeaseContainer.addRequestedSecret（SecretLeaseContainer.java:316）[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.vault.core.env.LeaseAwareVaultPropertySource.loadProperties（LeaseAwareVaultPropertySource.java:147）[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
位于org.springframework.vault.core.env.LeaseAwareVaultPropertySource.（LeaseAwareVaultPropertySource.java:133）[spring-vault-core-2.0.1.RELEASE.jar:2.0.1.RELEASE]
位于org.springframework.cloud.vault.config.LeasingVaultPropertySourceLocator.createvaultpropertysourcelocator（LeasingVaultPropertySourceLocator.java:151）[spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.cloud.vault.config.LeasingVaultPropertySourceLocator.createvaultpropertysourcelocator（LeasingVaultPropertySourceLocator.java:88）[spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
位于org.springframework.cloud.vault.config.VaultPropertySourceLocatorSupport.docreatePropertySourceLocatorSupport（VaultPropertySourceLocatorSupport.java:170）[spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
位于org.springframework.cloud.vault.config.VaultPropertySourceLocatorSupport.createCompositePropertySourceLocatorSupport（VaultPropertySourceLocatorSupport.java:145）[spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
位于org.springframework.cloud.vault.config.VaultPropertySourceLocatorSupport.locate（VaultPropertySourceLocatorSupport.java:116）[spring-cloud-vault-config-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize（PropertySourceBootstrapConfiguration.java:94）[spring-cloud-context-2.0.1.RELEASE.jar:2.0.1.RELEASE]
在org.springframework.boot.SpringApplication.applyInitializers（SpringApplication.java:636）[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
在org.springframework.boot.SpringApplication.prepareContext（SpringApplication.java:376）[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
在org.springframework.boot.SpringApplication.run（SpringApplication.java:328）[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
在org.springframework.boot.SpringApplication.run（SpringApplication.java:1258）[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
在org.springframework.boot.SpringApplication.run（SpringApplication.java:1246）[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
位于com.sivalbs.inventoryservice.InventoryServiceApplication.main（InventoryServiceApplication.java:12）[classes/：na]
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）~[na:1.8.0_162]
在sun.reflect.NativeMethodAccessorImpl.invoke（未知源）~[na:1.8.0_162]
在sun.reflect.DelegatingMethodAccessorImpl.invoke（未知源）~[na:1.8.0_162]
在java.lang.reflect.Method.invoke（未知源代码）~[na:1.8.0_162]

我将父pom版本更新为2.0.4.版本。

---

确保vault按照microservice配置运行：

# Vault
spring.cloud.vault.host=localhost
spring.cloud.vault.port=8200

---

通常，当服务未在端口上运行时，您可以

拒绝连接

错误。

您是否运行了github页面上列出的所有docker命令？我在本地运行代码。我们需要调整任何东西来运行没有docker的代码吗。但它显然无法连接到端口

8200

，即保险库。vault是否已启动并正在运行？是否可以使用docker运行？如果没有本地vault正在运行，请至少使用

docker compose up-d setup vault

。您的错误表明与vault的连接失败。这并不能解决问题。Vault服务已启动并正在运行，可以从终端使用Vault CLI或culr进行访问