SpringBoot------Web开发：首页如何定制
同样是在WebMvcAutoConfiguration配置类的源码中
@Bean
public WelcomePageHandlerMapping welcomePageHandlerMapping(ApplicationContext applicationContext, FormattingConversionService mvcConversionService, ResourceUrlProvider mvcResourceUrlProvider) {
WelcomePageHandlerMapping welcomePageHandlerMapping = new WelcomePageHandlerMapping(new TemplateAvailabilityProviders(applicationContext), applicationContext, this.getWelcomePage(), this.mvcProperties.getStaticPathPattern());
welcomePageHandlerMapping.setInterceptors(this.getInterceptors(mvcConversionService, mvcResourceUrlProvider));
welcomePageHandlerMapping.setCorsConfigurations(this.getCorsConfigurations());
return welcomePageHandlerMapping;
}
private Resource getWelcomePage() {
String[] var1 = this.resourceProperties.getStaticLocations();
int var2 = var1.length;
for(int var3 = 0; var3 < var2; ++var3) {
String location = var1[var3];
Resource indexHtml = this.getIndexHtml(location);
if (indexHtml != null) {
return indexHtml;
}
}
ServletContext servletContext = this.getServletContext();
if (servletContext != null) {
return this.getIndexHtml((Resource)(new ServletContextResource(servletContext, "/")));
} else {
return null;
}
}
private Resource getIndexHtml(String location) {
return this.getIndexHtml(this.resourceLoader.getResource(location));
}
private Resource getIndexHtml(Resource location) {
try {
Resource resource = location.createRelative("index.html");
if (resource.exists() && resource.getURL() != null) {
return resource;
}
} catch (Exception var3) {
}
return null;
}
getWelcomePage()方法中能看出：读取this.resourceProperties.getStaticLocations();地址。
而Resource对象的初始化时，this.staticLocations = CLASSPATH_RESOURCE_LOCATIONS;
CLASSPATH_RESOURCE_LOCATIONS时源码中定义的常量数组。
private static final String[] CLASSPATH_RESOURCE_LOCATIONS =
new String[]{
"classpath:/META-INF/resources/", "classpath:/resources/", "classpath:/static/", "classpath:/public/"};
和上一篇学习时静态资源放置的地址一致。for循环这个数组调用this.getIndexHtml()方法。
Resource indexHtml = this.getIndexHtml(location);
this.getIndexHtml()方法。
private Resource getIndexHtml(String location) {
return this.getIndexHtml(this.resourceLoader.getResource(location));
}
private Resource getIndexHtml(Resource location) {
try {
Resource resource = location.createRelative("index.html");
if (resource.exists() && resource.getURL() != null) {
return resource;
}
} catch (Exception var3) {
}
return null;
}
index页面放在SpringBoot默认的几个路径下都能够访问到。：http://localhost:8080/index.html
http://localhost:8080/也可以访问到。
新版SpringBoot设置默认图标已经废弃
在静态文件目录下直接放置一个favicon.ico图片，并且把默认图标关闭设置为false，能够在页面显示自己设置的图标，但是在新版本SpringBoot中此功能已经被舍弃。