I'm new to Spring framework and Spring Boot.
I've implemented a very simple RESTful Spring Boot web application.
You can see the nearly full source code in another question: Spring Boot: How to externalize JDBC datasource configuration?
How can the app service external static HTML, css js files?
For example, the directory structure may be as follows:
MyApp\
MyApp.jar (this is the Spring Boot app that services the static files below)
static\
index.htm
images\
logo.jpg
js\
main.js
sub.js
css\
app.css
part\
main.htm
sub.htm
I've read the method to build a .WAR file that contains static HTML files, but since it requires rebuild and redeploy of WAR file even on single HTML file modification, that method is unacceptable.
An exact and concrete answer is preferable since my knowledge of Spring is very limited.
I see from another of your questions that what you actually want is to be able to change the path to static resources in your application from the default values. Leaving aside the question of why you would want to do that, there are several possible answers.
@Bean
of type WebMvcConfigurerAdapter
and use the addResourceHandlers()
method to add additional paths to static resources (see WebMvcAutoConfiguration
for the defaults). ConfigurableEmbeddedServletContainerFactory
features to set the servlet context root path. @Bean
definition of type EmbeddedServletContainerFactory
that set up the servlet container in the way you want it. If you use one of the existing concrete implementations they extend the Abstract*
class that you already found, so they even have a setter for a property called documentRoot
. You can also do a lot of common manipulations using a @Bean
of type EmbeddedServletContainerCustomizer
. Is enough if you specify '-cp .' option in command 'java -jar blabla.jar' and in current directory is 'static' directory
Take a look at this Dave Syer's answer implementation.
You can set the document root directory which will be used by the web context to serve static files using ConfigurableEmbeddedServletContainer.setDocumentRoot(File documentRoot)
.
Working example:
package com.example.config;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.boot.web.servlet.ServletContextInitializer;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.util.StringUtils;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import java.io.File;
import java.nio.file.Paths;
@Configuration
public class WebConfigurer implements ServletContextInitializer, EmbeddedServletContainerCustomizer {
private final Logger log = LoggerFactory.getLogger(WebConfigurer.class);
private final Environment env;
private static final String STATIC_ASSETS_FOLDER_PARAM = "static-assets-folder";
private final String staticAssetsFolderPath;
public WebConfigurer(Environment env, @Value("${" + STATIC_ASSETS_FOLDER_PARAM + ":}") String staticAssetsFolderPath) {
this.env = env;
this.staticAssetsFolderPath = staticAssetsFolderPath;
}
@Override
public void onStartup(ServletContext servletContext) throws ServletException {
if (env.getActiveProfiles().length > 0) {
log.info("Web application configuration, profiles: {}", (Object[]) env.getActiveProfiles());
}
log.info(STATIC_ASSETS_FOLDER_PARAM + ": '{}'", staticAssetsFolderPath);
}
private void customizeDocumentRoot(ConfigurableEmbeddedServletContainer container) {
if (!StringUtils.isEmpty(staticAssetsFolderPath)) {
File docRoot;
if (staticAssetsFolderPath.startsWith(File.separator)) {
docRoot = new File(staticAssetsFolderPath);
} else {
final String workPath = Paths.get(".").toUri().normalize().getPath();
docRoot = new File(workPath + staticAssetsFolderPath);
}
if (docRoot.exists() && docRoot.isDirectory()) {
log.info("Custom location is used for static assets, document root folder: {}",
docRoot.getAbsolutePath());
container.setDocumentRoot(docRoot);
} else {
log.warn("Custom document root folder {} doesn't exist, custom location for static assets was not used.",
docRoot.getAbsolutePath());
}
}
}
@Override
public void customize(ConfigurableEmbeddedServletContainer container) {
customizeDocumentRoot(container);
}
}
Now you can customize your app with command line and profiles ( src\\main\\resources\\application-myprofile.yml
):
> java -jar demo-0.0.1-SNAPSHOT.jar --static-assets-folder="myfolder"
> java -jar demo-0.0.1-SNAPSHOT.jar --spring.profiles.active=myprofile
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.