Spring Boot在进行SpringApplication对象实例化时会加载META-INF/spring.factories文件，将该配置文件中的配置载入到Spring容器。
1.1.1. Maven下载源码
通过 dependency:sources 该命令可以下载该项目中所有的依赖的包的源码。
1.1.2. 源码分析
org.springframework.boot.SpringApplication：
org.springframework.core.io.support.SpringFactoriesLoader:
由此可见，读取该配置文件来加载内容。
1.1.3. Spring.factories文件
1 # Initializers 2 3 org.springframework.context.ApplicationContextInitializer= 4 5 org.springframework.boot.autoconfigure.SharedMetadataReaderFactoryContextInitializer, 6 7 org.springframework.boot.autoconfigure.logging.AutoConfigurationReportLoggingInitializer 8 9 10 11 # Application Listeners 12 13 org.springframework.context.ApplicationListener= 14 15 org.springframework.boot.autoconfigure.BackgroundPreinitializer 16 17 18 19 # Auto Configuration Import Listeners 20 21 org.springframework.boot.autoconfigure.AutoConfigurationImportListener= 22 23 org.springframework.boot.autoconfigure.condition.ConditionEvaluationReportAutoConfigurationImportListener 24 25 26 27 # Auto Configuration Import Filters 28 29 org.springframework.boot.autoconfigure.AutoConfigurationImportFilter= 30 31 org.springframework.boot.autoconfigure.condition.OnClassCondition 32 33 34 35 # Auto Configure 36 37 org.springframework.boot.autoconfigure.EnableAutoConfiguration= 38 39 org.springframework.boot.autoconfigure.admin.SpringApplicationAdminJmxAutoConfiguration, 40 41 org.springframework.boot.autoconfigure.aop.AopAutoConfiguration, 42 43 org.springframework.boot.autoconfigure.amqp.RabbitAutoConfiguration, 44 45 org.springframework.boot.autoconfigure.batch.BatchAutoConfiguration, 46 47 org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration, 48 49 org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfiguration, 50 51 org.springframework.boot.autoconfigure.cloud.CloudAutoConfiguration, 52 53 org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration, 54 55 org.springframework.boot.autoconfigure.context.MessageSourceAutoConfiguration, 56 57 org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration, 58 59 org.springframework.boot.autoconfigure.couchbase.CouchbaseAutoConfiguration, 60 61 org.springframework.boot.autoconfigure.dao.PersistenceExceptionTranslationAutoConfiguration, 62 63 org.springframework.boot.autoconfigure.data.cassandra.CassandraDataAutoConfiguration, 64 65 org.springframework.boot.autoconfigure.data.cassandra.CassandraRepositoriesAutoConfiguration, 66 67 org.springframework.boot.autoconfigure.data.couchbase.CouchbaseDataAutoConfiguration, 68 69 org.springframework.boot.autoconfigure.data.couchbase.CouchbaseRepositoriesAutoConfiguration, 70 71 org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchAutoConfiguration, 72 73 org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchDataAutoConfiguration, 74 75 org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchRepositoriesAutoConfiguration, 76 77 org.springframework.boot.autoconfigure.data.jpa.JpaRepositoriesAutoConfiguration, 78 79 org.springframework.boot.autoconfigure.data.ldap.LdapDataAutoConfiguration, 80 81 org.springframework.boot.autoconfigure.data.ldap.LdapRepositoriesAutoConfiguration, 82 83 org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration, 84 85 org.springframework.boot.autoconfigure.data.mongo.MongoRepositoriesAutoConfiguration, 86 87 org.springframework.boot.autoconfigure.data.neo4j.Neo4jDataAutoConfiguration, 88 89 org.springframework.boot.autoconfigure.data.neo4j.Neo4jRepositoriesAutoConfiguration, 90 91 org.springframework.boot.autoconfigure.data.solr.SolrRepositoriesAutoConfiguration, 92 93 org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration, 94 95 org.springframework.boot.autoconfigure.data.redis.RedisRepositoriesAutoConfiguration, 96 97 org.springframework.boot.autoconfigure.data.rest.RepositoryRestMvcAutoConfiguration, 98 99 org.springframework.boot.autoconfigure.data.web.SpringDataWebAutoConfiguration,100 101 org.springframework.boot.autoconfigure.elasticsearch.jest.JestAutoConfiguration,102 103 org.springframework.boot.autoconfigure.freemarker.FreeMarkerAutoConfiguration,104 105 org.springframework.boot.autoconfigure.gson.GsonAutoConfiguration,106 107 org.springframework.boot.autoconfigure.h2.H2ConsoleAutoConfiguration,108 109 org.springframework.boot.autoconfigure.hateoas.HypermediaAutoConfiguration,110 111 org.springframework.boot.autoconfigure.hazelcast.HazelcastAutoConfiguration,112 113 org.springframework.boot.autoconfigure.hazelcast.HazelcastJpaDependencyAutoConfiguration,114 115 org.springframework.boot.autoconfigure.info.ProjectInfoAutoConfiguration,116 117 org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration,118 119 org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration,120 121 org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration,122 123 org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration,124 125 org.springframework.boot.autoconfigure.jdbc.JndiDataSourceAutoConfiguration,126 127 org.springframework.boot.autoconfigure.jdbc.XADataSourceAutoConfiguration,128 129 org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration,130 131 org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration,132 133 org.springframework.boot.autoconfigure.jmx.JmxAutoConfiguration,134 135 org.springframework.boot.autoconfigure.jms.JndiConnectionFactoryAutoConfiguration,136 137 org.springframework.boot.autoconfigure.jms.activemq.ActiveMQAutoConfiguration,138 139 org.springframework.boot.autoconfigure.jms.artemis.ArtemisAutoConfiguration,140 141 org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration,142 143 org.springframework.boot.autoconfigure.groovy.template.GroovyTemplateAutoConfiguration,144 145 org.springframework.boot.autoconfigure.jersey.JerseyAutoConfiguration,146 147 org.springframework.boot.autoconfigure.jooq.JooqAutoConfiguration,148 149 org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration,150 151 org.springframework.boot.autoconfigure.ldap.embedded.EmbeddedLdapAutoConfiguration,152 153 org.springframework.boot.autoconfigure.ldap.LdapAutoConfiguration,154 155 org.springframework.boot.autoconfigure.liquibase.LiquibaseAutoConfiguration,156 157 org.springframework.boot.autoconfigure.mail.MailSenderAutoConfiguration,158 159 org.springframework.boot.autoconfigure.mail.MailSenderValidatorAutoConfiguration,160 161 org.springframework.boot.autoconfigure.mobile.DeviceResolverAutoConfiguration,162 163 org.springframework.boot.autoconfigure.mobile.DeviceDelegatingViewResolverAutoConfiguration,164 165 org.springframework.boot.autoconfigure.mobile.SitePreferenceAutoConfiguration,166 167 org.springframework.boot.autoconfigure.mongo.embedded.EmbeddedMongoAutoConfiguration,168 169 org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration,170 171 org.springframework.boot.autoconfigure.mustache.MustacheAutoConfiguration,172 173 org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration,174 175 org.springframework.boot.autoconfigure.reactor.ReactorAutoConfiguration,176 177 org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration,178 179 org.springframework.boot.autoconfigure.security.SecurityFilterAutoConfiguration,180 181 org.springframework.boot.autoconfigure.security.FallbackWebSecurityAutoConfiguration,182 183 org.springframework.boot.autoconfigure.security.oauth2.OAuth2AutoConfiguration,184 185 org.springframework.boot.autoconfigure.sendgrid.SendGridAutoConfiguration,186 187 org.springframework.boot.autoconfigure.session.SessionAutoConfiguration,188 189 org.springframework.boot.autoconfigure.social.SocialWebAutoConfiguration,190 191 org.springframework.boot.autoconfigure.social.FacebookAutoConfiguration,192 193 org.springframework.boot.autoconfigure.social.LinkedInAutoConfiguration,194 195 org.springframework.boot.autoconfigure.social.TwitterAutoConfiguration,196 197 org.springframework.boot.autoconfigure.solr.SolrAutoConfiguration,198 199 org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfiguration,200 201 org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration,202 203 org.springframework.boot.autoconfigure.transaction.jta.JtaAutoConfiguration,204 205 org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,206 207 org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration,208 209 org.springframework.boot.autoconfigure.web.EmbeddedServletContainerAutoConfiguration,210 211 org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration,212 213 org.springframework.boot.autoconfigure.web.HttpEncodingAutoConfiguration,214 215 org.springframework.boot.autoconfigure.web.HttpMessageConvertersAutoConfiguration,216 217 org.springframework.boot.autoconfigure.web.MultipartAutoConfiguration,218 219 org.springframework.boot.autoconfigure.web.ServerPropertiesAutoConfiguration,220 221 org.springframework.boot.autoconfigure.web.WebClientAutoConfiguration,222 223 org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration,224 225 org.springframework.boot.autoconfigure.websocket.WebSocketAutoConfiguration,226 227 org.springframework.boot.autoconfigure.websocket.WebSocketMessagingAutoConfiguration,228 229 org.springframework.boot.autoconfigure.webservices.WebServicesAutoConfiguration 230 231 232 233 # Failure analyzers 234 235 org.springframework.boot.diagnostics.FailureAnalyzer=236 237 org.springframework.boot.autoconfigure.diagnostics.analyzer.NoSuchBeanDefinitionFailureAnalyzer,238 239 org.springframework.boot.autoconfigure.jdbc.DataSourceBeanCreationFailureAnalyzer,240 241 org.springframework.boot.autoconfigure.jdbc.HikariDriverConfigurationFailureAnalyzer 242 243 244 245 # Template availability providers 246 247 org.springframework.boot.autoconfigure.template.TemplateAvailabilityProvider=248 249 org.springframework.boot.autoconfigure.freemarker.FreeMarkerTemplateAvailabilityProvider,250 251 org.springframework.boot.autoconfigure.mustache.MustacheTemplateAvailabilityProvider,252 253 org.springframework.boot.autoconfigure.groovy.template.GroovyTemplateAvailabilityProvider,254 255 org.springframework.boot.autoconfigure.thymeleaf.ThymeleafTemplateAvailabilityProvider,256 257 org.springframework.boot.autoconfigure.web.JspTemplateAvailabilityProvider
1.1.4. 举例：Redis的自动配置
从上述的配置中可以看出，org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration是Redis的自动配置。
内容：
1.1.5. 条件注解
时间： 2024-08-30 10:16:05