springboot 請求響應壓縮

官方文檔原文：https://docs.spring.io/spring-boot/docs/2.1.5.RELEASE/reference/htmlsingle/#how-to-enable-http-response-compression

HTTP response compression is supported by Jetty, Tomcat, and Undertow. It can be enabled in application.properties, as follows:

server.compression.enabled=true

By default, responses must be at least 2048 bytes in length for compression to be performed. You can configure this behavior by setting the server.compression.min-response-size property.

By default, responses are compressed only if their content type is one of the following:

• text/html
• text/xml
• text/plain
• text/css
• text/javascript
• application/javascript
• application/json
• application/xml

You can configure this behavior by setting the server.compression.mime-types property.

其中，

• server.compression.enabled   表示是否開啓 
• server.compression.mime-types    表示需要壓縮的內容的類型    “text/html”, “text/xml”, “text/plain”, “text/css”, “text/javascript”, “application/javascript”, “application/json”, “application/xml”
• server.compression.min-response-size    需要壓縮的內容的最小長度，默認單位：B    2048，等同於配置2KB，或者直接寫2KB也可以。官方文檔中就是這麼寫的。如下。

# EMBEDDED SERVER CONFIGURATION (ServerProperties)
server.address= # Network address to which the server should bind.
server.compression.enabled=false # Whether response compression is enabled.
server.compression.excluded-user-agents= # Comma-separated list of user agents for which responses should not be compressed.
server.compression.mime-types=text/html,text/xml,text/plain,text/css,text/javascript,application/javascript,application/json,application/xml # Comma-separated list of MIME types that should be compressed.
server.compression.min-response-size=2KB # Minimum "Content-Length" value that is required for compression to be performed.