這是Day4，一樣使用此教材:
尚硅谷IT培训学校: https://www.youtube.com/watch?v=XcblwCaqZ2I&list=PLmOn9nNkQxJEeIH75s5pdTUnCo9-xOc7c&index=24
自動配置列表
C:\Users\user\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\3.2.2\spring-boot-autoconfigure-3.2.2.jar!\META-INF\spring\org.springframework.boot.autoconfigure.AutoConfiguration.imports
org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration
org.springframework.boot.autoconfigure.web.client.RestTemplateAutoConfiguration
org.springframework.boot.autoconfigure.web.embedded.EmbeddedWebServerFactoryCustomizerAutoConfiguration
org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration
org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration
org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration
org.springframework.boot.autoconfigure.web.servlet.HttpEncodingAutoConfiguration
org.springframework.boot.autoconfigure.web.servlet.MultipartAutoConfiguration
org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration
org.springframework.boot.autoconfigure.websocket.reactive.WebSocketReactiveAutoConfiguration
org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration
org.springframework.boot.autoconfigure.websocket.servlet.WebSocketMessagingAutoConfiguration
org.springframework.boot.autoconfigure.webservices.WebServicesAutoConfiguration
org.springframework.boot.autoconfigure.webservices.client.WebServiceTemplateAutoConfiguration
server.port的來源
自動配置SpringMVC
HiddenHttpMethodFilter
FormContentFilter
WebMvcConfigurer
addInterceptors
addCorsMappings
configureContentNegotiation
WebProperties
ResourceHandlerRegistry
classpath:/META-INF/resources/找資源
classpath:/resources/
classpath:/static/
classpath:/public/
classpath類路徑
 |
setCachePeriod
setCacheControl
setUserLastModified
EnableWebMVCConfiguration
WelcomPageHandlerMapping
 |
spring.web.resources.add-mappings=true //cache
spring.web.resources.cache.period=3600 //秒 //有下面那行，就不用這行
spring.web.resources.cache.cachecontrol.max-age=7200 //超過的話就會去server抓
spring.web.resources.cache.use-last-modified=true //資源的最後修改時間，用來對比，沒變化就返回304
 |
spring.mvc.webjars-path-pattern=/webjars/**
spring.mvc.static-path-pattern=/**
若改成 spring.mvc.static-path-pattern=/static/**
spring.web.resources-static-location=classpath:/a/,classpath:/b/
spring.web.resources.cache.cachecontrol.cache-public=true //共享緩存
WebMvcConfigurer / ResourceHandlerRegistry / setCacheControl / maxAge:
http://localhost:8080/static/test.txt
若加@EnableWebMvc 就會禁用默認值
禁用cache
EnableWebMvcConfiguration的爸爸:
DelegatingWebMvcConfiguration的內容:
@Autowired(
required = false
)
public void setConfigurers(List<WebMvcConfigurer> configurers) {
if (!CollectionUtils.isEmpty(configurers)) {
this.configurers.addWebMvcConfigurers(configurers);
}
}@Autowired 是把容器中所有WebMvcConfigurer組件都拿來(自動注入)，所有configure都會被組合到這個類，保存所有WebMvcConfigurer
return new WebMvcConfigurer() {:
Ant風格路徑
內容協商
一套系統多數據返回
基於請求頭
HTTP標準
Accept: application/json
Accept: application/xml
Accept: application/haha
/person?format=json
路徑匹配
@RestController
都會包含Response Body
默認會用JSON
C:\Users\user\.m2\repository\org\springframework\boot\spring-boot-starter-web\3.2.2\spring-boot-starter-web-3.2.2.pom
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-json</artifactId>
<version>3.2.2</version>
<scope>compile</scope>
</dependency>
C:\Users\user\.m2\repository\org\springframework\boot\spring-boot-starter-json\3.2.2\spring-boot-starter-json-3.2.2.pom
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.15.3</version>
<scope>compile</scope>
</dependency>
Add a Maven dependency
Press Alt Insert to open the Generate context menu.
Press Alt Insert to open the Generate context menu.
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
</dependency>
Jackson Dataformat Xml:
進行內容協商，所以默認JSON被拿掉
瀏覽器優先text/html
開啟基於請求參數的內容協商功能
spring.mvc.contentnegotiation.favor-parameter=true
參數type
spring.mvc.contentnegotiation.parameter-name=type
try with 寫法: 自動關流
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