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
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| 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;
}
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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
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| @Configuration(proxyBeanMethods = false)
@Profile("native")
class NativeRepositoryConfiguration {
@Bean
public NativeEnvironmentRepository nativeEnvironmentRepository(
NativeEnvironmentRepositoryFactory factory,
NativeEnvironmentProperties environmentProperties) {
return factory.build(environmentProperties);
}
}
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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
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| if (getUri().startsWith(FILE_URI_PREFIX)) {
return copyFromLocalRepository();
}
else {
return cloneToBasedir();
}
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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
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| 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;
}
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如果不是用file前缀来进行设置的，就需要从git库去进行clone
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| 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;
}
}
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