页面缓存
1. freemarker 的页面静态化
application.properties 配置实现浏览器缓存
# SPRING RESOURCES HANDLING ([ResourceProperties](https://github.com/spring-projects/spring-boot/tree/v1.5.4.RELEASE/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ResourceProperties.java))
spring.resources.add-mappings=true # Enable default resource handling.
spring.resources.cache-period= # Cache period for the resources served by the resource handler, in seconds.
spring.resources.chain.cache=true # Enable caching in the Resource chain.
spring.resources.chain.enabled= # Enable the Spring Resource Handling chain. Disabled by default unless at least one strategy has been enabled.
spring.resources.chain.gzipped=false # Enable resolution of already gzipped resources.
spring.resources.chain.html-application-cache=false # Enable HTML5 application cache manifest rewriting.
spring.resources.chain.strategy.content.enabled=false # Enable the content Version Strategy.
spring.resources.chain.strategy.content.paths=/** # Comma-separated list of patterns to apply to the Version Strategy.
spring.resources.chain.strategy.fixed.enabled=false # Enable the fixed Version Strategy.
spring.resources.chain.strategy.fixed.paths=/** # Comma-separated list of patterns to apply to the Version Strategy.
spring.resources.chain.strategy.fixed.version= # Version string to use for the Version Strategy.
spring.resources.static-locations=classpath:/static/
这段配置是用来启用资源缓存处理。
借鉴官方文档：https://docs.spring.io/spring-boot/docs/1.5.4.RELEASE/reference/htmlsingle/
controller中实现页面静态化
/**
* Created by Fant.J.
*/
@RestController
public class HelloController {
@Autowired
private Configuration configuration;
@GetMapping("/hello")
public String demo(Map<String, Object> map) {
map.put("name", "demo");
freeMarkerContent(map,"hello");
return "hello";
}
private void freeMarkerContent(Map<String,Object> root,String ftl){
try {
Template temp = configuration.getTemplate(ftl+".ftl");
//以classpath下面的static目录作为静态页面的存储目录，同时命名生成的静态html文件名称
String path=this.getClass().getResource("/").getPath()+"templates/"+ftl+".html";
Writer file = new FileWriter(path);
temp.process(root, file);
file.flush();
file.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
2. thymeleaf 的页面静态化
核心代码的不同：
SpringWebContext ctx = new SpringWebContext(request,response,
request.getServletContext(),request.getLocale(), model.asMap(), applicationContext );
String html = thymeleafViewResolver.getTemplateEngine().process("hello", ctx);
对象缓存
利用Redis实现对象的缓存：
后面我会添加SpringBoot 对 Redis 的集成开发。
静态资源优化
1. JS/CSS压缩
取消空格。
2. 多个JS/CSS组合
打包成一个js/css，减少请求次数
3.CDN访问
js/css打包放到cdn上做提速
