net.mingsoft.base.MSVersion Maven / Gradle / Ivy
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/**
* Copyright (c) 2012-present 铭软科技(mingsoft.net)
* 本软件及相关文档文件（以下简称“软件”）的版权归 铭软科技 所有
* 遵循 铭软科技《服务协议》中的《保密条款》
*/
package net.mingsoft.base;
import java.io.File;
import java.io.IOException;
import java.net.JarURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.security.CodeSource;
import java.util.jar.Attributes;
import java.util.jar.JarFile;
public class MSVersion {
public static String getVersion() {
return determineSpringBootVersion();
}
private static String determineSpringBootVersion() {
final Package pkg = MSVersion.class.getPackage();
if (pkg != null && pkg.getImplementationVersion() != null) {
return pkg.getImplementationVersion();
}
CodeSource codeSource = MSVersion.class.getProtectionDomain().getCodeSource();
if (codeSource == null) {
return null;
}
URL codeSourceLocation = codeSource.getLocation();
try {
URLConnection connection = codeSourceLocation.openConnection();
if (connection instanceof JarURLConnection) {
return getImplementationVersion(((JarURLConnection) connection).getJarFile());
}
try (JarFile jarFile = new JarFile(new File(codeSourceLocation.toURI()))) {
return getImplementationVersion(jarFile);
}
} catch (Exception ex) {
return null;
}
}
private static String getImplementationVersion(JarFile jarFile) throws IOException {
return jarFile.getManifest().getMainAttributes().getValue(Attributes.Name.IMPLEMENTATION_VERSION);
}
}