springboot PNG交错

PNG交错是一种优化PNG图像加载的方式，可以让图像在加载时逐步呈现，提高用户体验。在Spring Boot中，可以通过以下步骤来实现PNG交错：

1.在pom.xml文件中添加以下依赖项：

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
</dependency>
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-el</artifactId>
</dependency>

2.在application.properties文件中添加以下配置：

spring.mvc.view.prefix=/WEB-INF/views/
spring.mvc.view.suffix=.jsp
server.tomcat.uri-encoding=UTF-8
server.tomcat.max-threads=1000
server.tomcat.accept-count=1000
server.tomcat.protocol-header=x-forwarded-proto
server.tomcat.remote-ip-header=x-forwarded-for
server.tomcat.background-processor-delay=30
server.tomcat.max-http-post-size=10485760
server.tomcat.accesslog.enabled=true
server.tomcat.accesslog.pattern=%h %l %u %t "%r" %s %b %D
server.tomcat.accesslog.directory=/var/log/tomcat
server.tomcat.accesslog.prefix=access_log
server.tomcat.accesslog.suffix=.txt
server.tomcat.accesslog.rotate=true
server.tomcat.accesslog.rename-on-rotate=true
server.tomcat.accesslog.request-attributes-enabled=true
server.tomcat.accesslog.buffered=true
server.tomcat.accesslog.use-custom-timestamp=true
server.tomcat.accesslog.locale=en_US
server.tomcat.accesslog.time-zone=GMT
server.tomcat.accesslog.max-days=30
server.tomcat.accesslog.max-size=10MB
server.tomcat.accesslog.file-date-format=yyyy-MM-dd
server.tomcat.accesslog.enabled=true
server.tomcat.accesslog.pattern=%h %l %u %t "%r" %s %b %D
server.tomcat.accesslog.directory=/var/log/tomcat
server.tomcat.accesslog.prefix=access_log
server.tomcat.accesslog.suffix=.txt
server.tomcat.accesslog.rotate=true
server.tomcat.accesslog.rename-on-rotate=true
server.tomcat.accesslog.request-attributes-enabled=true
server.tomcat.accesslog.buffered=true
server.tomcat.accesslog.use-custom-timestamp=true
server.tomcat.accesslog.locale=en_US
server.tomcat.accesslog.time-zone=GMT
server.tomcat.accesslog.max-days=30
server.tomcat.accesslog.max-size=10MB
server.tomcat.accesslog.file-date-format=yyyy-MM-dd

3.在jsp文件中添加以下代码：

<img src="your-image.png" alt="your-image" class="interlaced">

这样就可以实现PNG交错了。如果你想了解更多关于PNG交错的信息，可以参考以下链接：

https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Image_types#Progressive_JPEG_and_PNG