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LoaderTestApplication.java
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LoaderTestApplication.java
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/*
* Copyright 2012-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.loaderapp;
import java.net.URL;
import java.util.Arrays;
import javax.servlet.ServletContext;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.util.FileCopyUtils;
@SpringBootApplication
public class LoaderTestApplication {
@Bean
public CommandLineRunner commandLineRunner(ServletContext servletContext) {
return (args) -> {
URL resourceUrl = servletContext.getResource("webjars/jquery/3.5.0/jquery.js");
byte[] resourceContent = FileCopyUtils.copyToByteArray(resourceUrl.openStream());
URL directUrl = new URL(resourceUrl.toExternalForm());
byte[] directContent = FileCopyUtils.copyToByteArray(directUrl.openStream());
String message = (!Arrays.equals(resourceContent, directContent)) ? "NO MATCH"
: directContent.length + " BYTES";
System.out.println(">>>>> " + message + " from " + resourceUrl);
};
}
public static void main(String[] args) {
SpringApplication.run(LoaderTestApplication.class, args).stop();
}
}