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Spring Cloud全解析：配置中心之springCloudConfig配置存储

news 来源：原创 2024/9/19 16:11:31

配置存储

springCloudConfig是使用EnvironmentRepository来存储服务器的配置数据的，返回Environment对象

public Environment(@JsonProperty("name") String name,@JsonProperty("profiles") String[] profiles,@JsonProperty("label") String label, @JsonProperty("version") String version,@JsonProperty("state") String state) {super();this.name = name;this.profiles = profiles;this.label = label;this.version = version;this.state = state;}

基于本地文件

如果存储是基于文件的，即配置了spring.cloud.config.server.native.searchLocation，此时使用的是NativeEnvironmentRepository来查找配置

使用本地文件的前提是要配置spring.prifiles.active=native

@Configuration(proxyBeanMethods = false)
@Profile("native")
class NativeRepositoryConfiguration {@Beanpublic NativeEnvironmentRepository nativeEnvironmentRepository(NativeEnvironmentRepositoryFactory factory,NativeEnvironmentProperties environmentProperties) {return factory.build(environmentProperties);}}

只有配置了spring.prifiles.active=native才会创建NativeEnvironmentRepository这个bean

基于Git

如果存储是基于git的，即配置了spring.cloud.config.server.git.uri，此时使用的是JGitEnvironmentRepository来查找配置

if (getUri().startsWith(FILE_URI_PREFIX)) {return copyFromLocalRepository();
}
else {return cloneToBasedir();
}

如果使用file:前缀来进行设置的，此时是从本地Git仓库获取的，也就不需要克隆

private Git copyFromLocalRepository() throws IOException {Git git;File remote = new UrlResource(StringUtils.cleanPath(getUri())).getFile();Assert.state(remote.isDirectory(), "No directory at " + getUri());File gitDir = new File(remote, ".git");Assert.state(gitDir.exists(), "No .git at " + getUri());Assert.state(gitDir.isDirectory(), "No .git directory at " + getUri());git = this.gitFactory.getGitByOpen(remote);return git;
}

如果不是用file前缀来进行设置的，就需要从git库去进行clone

private Git cloneToBasedir() throws GitAPIException {CloneCommand clone = this.gitFactory.getCloneCommandByCloneRepository().setURI(getUri()).setDirectory(getBasedir());configureCommand(clone);try {return clone.call();}catch (GitAPIException e) {this.logger.warn("Error occured cloning to base directory.", e);deleteBaseDirIfExists();throw e;}
}