springboot生成license实例

在Spring Boot中生成license的方法有很多种，以下是一种简单的方法：

1. 引入依赖：在`pom.xml`文件中添加如下依赖。

<dependency>
    <groupId>de.schlichtherle.license</groupId>
    <artifactId>license-manager</artifactId>
    <version>3.0.5</version>
</dependency>

2. 创建LicenseManagerHolder类：该类用于创建和初始化LicenseManager。

import de.schlichtherle.license.LicenseContent;
import de.schlichtherle.license.LicenseManager;
import de.schlichtherle.license.LicenseParam;
import de.schlichtherle.license.LicenseParamBuilder;
import de.schlichtherle.license.keystore.KeyStoreParam;
import de.schlichtherle.license.keystore.KeyStoreParamBuilder;
import de.schlichtherle.license.keygen.KeyGenerator;
import de.schlichtherle.license.keygen.KeyGeneratorParam;
import de.schlichtherle.license.keygen.KeyGeneratorParamBuilder;
import de.schlichtherle.xml.GenericCertificate;

import java.io.File;
import java.util.prefs.Preferences;

public class LicenseManagerHolder {

    private static LicenseManager licenseManager;

    public static synchronized LicenseManager getLicenseManager() {
        if (licenseManager == null) {
            licenseManager = new LicenseManager(initLicenseParam());
        }
        return licenseManager;
    }

    private static LicenseParam initLicenseParam() {
        Preferences preferences = Preferences.userNodeForPackage(LicenseManagerHolder.class);

        KeyStoreParam privateKeyStoreParam = new KeyStoreParamBuilder()
                .setKeyStorePath(new File("privateKeys.keystore"))
                .setKeyStoreAlias("privateKeyAlias")
                .setKeyStorePwd("privateKeyPwd")
                .setPrivateKeyPwd("privateKeyPwd")
                .build();

        return new LicenseParamBuilder()
                .setSubject("license demo")
                .setHolder("holder")
                .setIssuer("issuer")
                .setPrivateKeyStoreParam(privateKeyStoreParam)
                .setStoreDir(new File(preferences.get("storeDir", "conf")))
                .setKeyStoreParam(privateKeyStoreParam)
                .build();

    }

    public static LicenseContent createLicenseContent() throws Exception {
        KeyGeneratorParam keyGeneratorParam = new KeyGeneratorParamBuilder().build();
        KeyGenerator keyGenerator = new KeyGenerator(keyGeneratorParam);

        return new LicenseContentBuilder()
                .withHolder("holder")
                .withIssuer("issuer")
                .withSubject("license demo")
                .withIssued(new Date())
                .withNotBefore(new Date())
                .withNotAfter(new Date())
                .withConsumerType(ConsumerType.B2B)
                .withConsumerAmount(1)
                .withInfo("This is a demo license")
                .withExtra(new GenericCertificate())
                .build();

    }
}

3. 在需要生成license的地方调用LicenseManagerHolder类，生成license文件。

import de.schlichtherle.license.LicenseContent;
import de.schlichtherle.license.LicenseManager;
import de.schlichtherle.license.LicenseParam;

import java.io.File;
import java.util.prefs.Preferences;

public class GenerateLicense {
    public static void main(String[] args) throws Exception {
        LicenseManager licenseManager = LicenseManagerHolder.getLicenseManager();
        LicenseContent licenseContent = LicenseManagerHolder.createLicenseContent();
        File licenseFile = new File("license.lic");
        licenseManager.store(licenseContent, licenseFile);
    }
}

以上是一个简单的生成license文件的例子，实际使用中可能需要根据具体情况进行调整。