Spring Boot項目中使用 TrueLicense 生成和驗證License（服務器許可）

icense，即版權許可證，一般用於收費軟件給付費用戶提供的訪問許可證明。根據應用部署位置的不同，一般可以分為以下兩種情況討論：

• 應用部署在開發者自己的雲服務器上。這種情況下用戶通過賬號登錄的形式遠程訪問，因此只需要在賬號登錄的時候校驗目標賬號的有效期、訪問權限等信息即可。
• 應用部署在客戶的內網環境。因為這種情況開發者無法控制客戶的網絡環境，也不能保證應用所在服務器可以訪問外網，因此通常的做法是使用服務器許可文件，在應用啟動的時候加載證書，然后在登錄或者其他關鍵操作的地方校驗證書的有效性。

注：限於文章篇幅，這里只討論代碼層面的許可限制，暫不考慮逆向破解等問題。此外，在下面我只講解關鍵代碼實現，完整代碼可以參考： gitee.com/zifangsky/L…

二 使用 TrueLicense 生成License

（1）使用Spring Boot構建測試項目ServerDemo，用於為客戶生成License許可文件：

注：這個完整的Demo項目可以參考： gitee.com/zifangsky/L…

i）在pom.xml中添加關鍵依賴：

    de.schlichtherle.truelicense
    truelicense-core
    1.33
    provided

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ii）校驗自定義的License參數：

TrueLicense的 de.schlichtherle.license.LicenseManager 類自帶的verify方法只校驗了我們后面頒發的許可文件的生效和過期時間，然而在實際項目中我們可能需要額外校驗應用部署的服務器的IP地址、MAC地址、CPU序列號、主板序列號等信息，因此我們需要復寫框架的部分方法以實現校驗自定義參數的目的。

首先需要添加一個自定義的可被允許的服務器硬件信息的實體類（如果校驗其他參數，可自行補充）：

package cn.zifangsky.license;

import java.io.Serializable;
import java.util.List;

/**
 * 自定義需要校驗的License參數
 *
 * @author zifangsky
 * @date 2018/4/23
 * @since 1.0.0
 */
public class LicenseCheckModel implements Serializable{

    private static final long serialVersionUID = 8600137500316662317L;
    /**
     * 可被允許的IP地址
     */
    private List ipAddress;

    /**
     * 可被允許的MAC地址
     */
    private List macAddress;

    /**
     * 可被允許的CPU序列號
     */
    private String cpuSerial;

    /**
     * 可被允許的主板序列號
     */
    private String mainBoardSerial;

    //省略setter和getter方法

    @Override
    public String toString() {
        return "LicenseCheckModel{" +
                "ipAddress=" + ipAddress +
                ", macAddress=" + macAddress +
                ", cpuSerial='" + cpuSerial + ''' +
                ", mainBoardSerial='" + mainBoardSerial + ''' +
                '}';
    }
}
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其次，添加一個License生成類需要的參數：

package cn.zifangsky.license;

import com.fasterxml.jackson.annotation.JsonFormat;

import java.io.Serializable;
import java.util.Date;

/**
 * License生成類需要的參數
 *
 * @author zifangsky
 * @date 2018/4/19
 * @since 1.0.0
 */
public class LicenseCreatorParam implements Serializable {

    private static final long serialVersionUID = -7793154252684580872L;
    /**
     * 證書subject
     */
    private String subject;

    /**
     * 密鑰別稱
     */
    private String privateAlias;

    /**
     * 密鑰密碼（需要妥善保管，不能讓使用者知道）
     */
    private String keyPass;

    /**
     * 訪問秘鑰庫的密碼
     */
    private String storePass;

    /**
     * 證書生成路徑
     */
    private String licensePath;

    /**
     * 密鑰庫存儲路徑
     */
    private String privateKeysStorePath;

    /**
     * 證書生效時間
     */
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date issuedTime = new Date();

    /**
     * 證書失效時間
     */
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date expiryTime;

    /**
     * 用戶類型
     */
    private String consumerType = "user";

    /**
     * 用戶數量
     */
    private Integer consumerAmount = 1;

    /**
     * 描述信息
     */
    private String description = "";

    /**
     * 額外的服務器硬件校驗信息
     */
    private LicenseCheckModel licenseCheckModel;

    //省略setter和getter方法

    @Override
    public String toString() {
        return "LicenseCreatorParam{" +
                "subject='" + subject + ''' +
                ", privateAlias='" + privateAlias + ''' +
                ", keyPass='" + keyPass + ''' +
                ", storePass='" + storePass + ''' +
                ", licensePath='" + licensePath + ''' +
                ", privateKeysStorePath='" + privateKeysStorePath + ''' +
                ", issuedTime=" + issuedTime +
                ", expiryTime=" + expiryTime +
                ", consumerType='" + consumerType + ''' +
                ", consumerAmount=" + consumerAmount +
                ", description='" + description + ''' +
                ", licenseCheckModel=" + licenseCheckModel +
                '}';
    }
}
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添加抽象類AbstractServerInfos，用戶獲取服務器的硬件信息：

package cn.zifangsky.license;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

/**
 * 用於獲取客戶服務器的基本信息，如：IP、Mac地址、CPU序列號、主板序列號等
 *
 * @author zifangsky
 * @date 2018/4/23
 * @since 1.0.0
 */
public abstract class AbstractServerInfos {
    private static Logger logger = LogManager.getLogger(AbstractServerInfos.class);

    /**
     * 組裝需要額外校驗的License參數
     * @author zifangsky
     * @date 2018/4/23 14:23
     * @since 1.0.0
     * @return demo.LicenseCheckModel
     */
    public LicenseCheckModel getServerInfos(){
        LicenseCheckModel result = new LicenseCheckModel();

        try {
            result.setIpAddress(this.getIpAddress());
            result.setMacAddress(this.getMacAddress());
            result.setCpuSerial(this.getCPUSerial());
            result.setMainBoardSerial(this.getMainBoardSerial());
        }catch (Exception e){
            logger.error("獲取服務器硬件信息失敗",e);
        }

        return result;
    }

    /**
     * 獲取IP地址
     * @author zifangsky
     * @date 2018/4/23 11:32
     * @since 1.0.0
     * @return java.util.List
     */
    protected abstract List getIpAddress() throws Exception;

    /**
     * 獲取Mac地址
     * @author zifangsky
     * @date 2018/4/23 11:32
     * @since 1.0.0
     * @return java.util.List
     */
    protected abstract List getMacAddress() throws Exception;

    /**
     * 獲取CPU序列號
     * @author zifangsky
     * @date 2018/4/23 11:35
     * @since 1.0.0
     * @return java.lang.String
     */
    protected abstract String getCPUSerial() throws Exception;

    /**
     * 獲取主板序列號
     * @author zifangsky
     * @date 2018/4/23 11:35
     * @since 1.0.0
     * @return java.lang.String
     */
    protected abstract String getMainBoardSerial() throws Exception;

    /**
     * 獲取當前服務器所有符合條件的InetAddress
     * @author zifangsky
     * @date 2018/4/23 17:38
     * @since 1.0.0
     * @return java.util.List
     */
    protected List getLocalAllInetAddress() throws Exception {
        List result = new ArrayList(4);

        // 遍歷所有的網絡接口
        for (Enumeration networkInterfaces = NetworkInterface.getNetworkInterfaces(); networkInterfaces.hasMoreElements(); ) {
            NetworkInterface iface = (NetworkInterface) networkInterfaces.nextElement();
            // 在所有的接口下再遍歷IP
            for (Enumeration inetAddresses = iface.getInetAddresses(); inetAddresses.hasMoreElements(); ) {
                InetAddress inetAddr = (InetAddress) inetAddresses.nextElement();

                //排除LoopbackAddress、SiteLocalAddress、LinkLocalAddress、MulticastAddress類型的IP地址
                if(!inetAddr.isLoopbackAddress() /*&& !inetAddr.isSiteLocalAddress()*/
                        && !inetAddr.isLinkLocalAddress() && !inetAddr.isMulticastAddress()){
                    result.add(inetAddr);
                }
            }
        }

        return result;
    }

    /**
     * 獲取某個網絡接口的Mac地址
     * @author zifangsky
     * @date 2018/4/23 18:08
     * @since 1.0.0
     * @param
     * @return void
     */
    protected String getMacByInetAddress(InetAddress inetAddr){
        try {
            byte[] mac = NetworkInterface.getByInetAddress(inetAddr).getHardwareAddress();
            StringBuffer stringBuffer = new StringBuffer();

            for(int i=0;i<mac.length;i++){
                if(i != 0) {
                    stringBuffer.append("-");
                }

                //將十六進制byte轉化為字符串
                String temp = Integer.toHexString(mac[i] & 0xff);
                if(temp.length() == 1){
                    stringBuffer.append("0" + temp);
                }else{
                    stringBuffer.append(temp);
                }
            }

            return stringBuffer.toString().toUpperCase();
        } catch (SocketException e) {
            e.printStackTrace();
        }

        return null;
    }

}
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獲取客戶Linux服務器的基本信息：

package cn.zifangsky.license;

import org.apache.commons.lang3.StringUtils;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.util.List;
import java.util.stream.Collectors;

/**
 * 用於獲取客戶Linux服務器的基本信息
 *
 * @author zifangsky
 * @date 2018/4/23
 * @since 1.0.0
 */
public class LinuxServerInfos extends AbstractServerInfos {

    @Override
    protected List getIpAddress() throws Exception {
        List result = null;

        //獲取所有網絡接口
        List inetAddresses = getLocalAllInetAddress();

        if(inetAddresses != null && inetAddresses.size() > 0){
            result = inetAddresses.stream().map(InetAddress::getHostAddress).distinct().map(String::toLowerCase).collect(Collectors.toList());
        }

        return result;
    }

    @Override
    protected List getMacAddress() throws Exception {
        List result = null;

        //1. 獲取所有網絡接口
        List inetAddresses = getLocalAllInetAddress();

        if(inetAddresses != null && inetAddresses.size() > 0){
            //2. 獲取所有網絡接口的Mac地址
            result = inetAddresses.stream().map(this::getMacByInetAddress).distinct().collect(Collectors.toList());
        }

        return result;
    }

    @Override
    protected String getCPUSerial() throws Exception {
        //序列號
        String serialNumber = "";

        //使用dmidecode命令獲取CPU序列號
        String[] shell = {"/bin/bash","-c","dmidecode -t processor | grep 'ID' | awk -F ':' '{print $2}' | head -n 1"};
        Process process = Runtime.getRuntime().exec(shell);
        process.getOutputStream().close();

        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

        String line = reader.readLine().trim();
        if(StringUtils.isNotBlank(line)){
            serialNumber = line;
        }

        reader.close();
        return serialNumber;
    }

    @Override
    protected String getMainBoardSerial() throws Exception {
        //序列號
        String serialNumber = "";

        //使用dmidecode命令獲取主板序列號
        String[] shell = {"/bin/bash","-c","dmidecode | grep 'Serial Number' | awk -F ':' '{print $2}' | head -n 1"};
        Process process = Runtime.getRuntime().exec(shell);
        process.getOutputStream().close();

        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

        String line = reader.readLine().trim();
        if(StringUtils.isNotBlank(line)){
            serialNumber = line;
        }

        reader.close();
        return serialNumber;
    }
}
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獲取客戶Windows服務器的基本信息：

package cn.zifangsky.license;

import java.net.InetAddress;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

/**
 * 用於獲取客戶Windows服務器的基本信息
 *
 * @author zifangsky
 * @date 2018/4/23
 * @since 1.0.0
 */
public class WindowsServerInfos extends AbstractServerInfos {

    @Override
    protected List getIpAddress() throws Exception {
        List result = null;

        //獲取所有網絡接口
        List inetAddresses = getLocalAllInetAddress();

        if(inetAddresses != null && inetAddresses.size() > 0){
            result = inetAddresses.stream().map(InetAddress::getHostAddress).distinct().map(String::toLowerCase).collect(Collectors.toList());
        }

        return result;
    }

    @Override
    protected List getMacAddress() throws Exception {
        List result = null;

        //1. 獲取所有網絡接口
        List inetAddresses = getLocalAllInetAddress();

        if(inetAddresses != null && inetAddresses.size() > 0){
            //2. 獲取所有網絡接口的Mac地址
            result = inetAddresses.stream().map(this::getMacByInetAddress).distinct().collect(Collectors.toList());
        }

        return result;
    }

    @Override
    protected String getCPUSerial() throws Exception {
        //序列號
        String serialNumber = "";

        //使用WMIC獲取CPU序列號
        Process process = Runtime.getRuntime().exec("wmic cpu get processorid");
        process.getOutputStream().close();
        Scanner scanner = new Scanner(process.getInputStream());

        if(scanner.hasNext()){
            scanner.next();
        }

        if(scanner.hasNext()){
            serialNumber = scanner.next().trim();
        }

        scanner.close();
        return serialNumber;
    }

    @Override
    protected String getMainBoardSerial() throws Exception {
        //序列號
        String serialNumber = "";

        //使用WMIC獲取主板序列號
        Process process = Runtime.getRuntime().exec("wmic baseboard get serialnumber");
        process.getOutputStream().close();
        Scanner scanner = new Scanner(process.getInputStream());

        if(scanner.hasNext()){
            scanner.next();
        }

        if(scanner.hasNext()){
            serialNumber = scanner.next().trim();
        }

        scanner.close();
        return serialNumber;
    }
}
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注：這里使用了模板方法模式，將不變部分的算法封裝到抽象類，而基本方法的具體實現則由子類來實現。更多內容可以參考我之前寫的文檔：模板方法模式

自定義LicenseManager，用於增加額外的服務器硬件信息校驗：

package cn.zifangsky.license;

import de.schlichtherle.license.LicenseContent;
import de.schlichtherle.license.LicenseContentException;
import de.schlichtherle.license.LicenseManager;
import de.schlichtherle.license.LicenseNotary;
import de.schlichtherle.license.LicenseParam;
import de.schlichtherle.license.NoLicenseInstalledException;
import de.schlichtherle.xml.GenericCertificate;
import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.beans.XMLDecoder;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.List;

/**
 * 自定義LicenseManager，用於增加額外的服務器硬件信息校驗
 *
 * @author zifangsky
 * @date 2018/4/23
 * @since 1.0.0
 */
public class CustomLicenseManager extends LicenseManager{
    private static Logger logger = LogManager.getLogger(CustomLicenseManager.class);

    //XML編碼
    private static final String XML_CHARSET = "UTF-8";
    //默認BUFSIZE
    private static final int DEFAULT_BUFSIZE = 8 * 1024;

    public CustomLicenseManager() {

    }

    public CustomLicenseManager(LicenseParam param) {
        super(param);
    }

    /**
     * 復寫create方法
     * @author zifangsky
     * @date 2018/4/23 10:36
     * @since 1.0.0
     * @param
     * @return byte[]
     */
    @Override
    protected synchronized byte[] create(
            LicenseContent content,
            LicenseNotary notary)
            throws Exception {
        initialize(content);
        this.validateCreate(content);
        final GenericCertificate certificate = notary.sign(content);
        return getPrivacyGuard().cert2key(certificate);
    }

    /**
     * 復寫install方法，其中validate方法調用本類中的validate方法，校驗IP地址、Mac地址等其他信息
     * @author zifangsky
     * @date 2018/4/23 10:40
     * @since 1.0.0
     * @param
     * @return de.schlichtherle.license.LicenseContent
     */
    @Override
    protected synchronized LicenseContent install(
            final byte[] key,
            final LicenseNotary notary)
            throws Exception {
        final GenericCertificate certificate = getPrivacyGuard().key2cert(key);

        notary.verify(certificate);
        final LicenseContent content = (LicenseContent)this.load(certificate.getEncoded());
        this.validate(content);
        setLicenseKey(key);
        setCertificate(certificate);

        return content;
    }

    /**
     * 復寫verify方法，調用本類中的validate方法，校驗IP地址、Mac地址等其他信息
     * @author zifangsky
     * @date 2018/4/23 10:40
     * @since 1.0.0
     * @param
     * @return de.schlichtherle.license.LicenseContent
     */
    @Override
    protected synchronized LicenseContent verify(final LicenseNotary notary)
            throws Exception {
        GenericCertificate certificate = getCertificate();

        // Load license key from preferences,
        final byte[] key = getLicenseKey();
        if (null == key){
            throw new NoLicenseInstalledException(getLicenseParam().getSubject());
        }

        certificate = getPrivacyGuard().key2cert(key);
        notary.verify(certificate);
        final LicenseContent content = (LicenseContent)this.load(certificate.getEncoded());
        this.validate(content);
        setCertificate(certificate);

        return content;
    }

    /**
     * 校驗生成證書的參數信息
     * @author zifangsky
     * @date 2018/5/2 15:43
     * @since 1.0.0
     * @param content 證書正文
     */
    protected synchronized void validateCreate(final LicenseContent content)
            throws LicenseContentException {
        final LicenseParam param = getLicenseParam();

        final Date now = new Date();
        final Date notBefore = content.getNotBefore();
        final Date notAfter = content.getNotAfter();
        if (null != notAfter && now.after(notAfter)){
            throw new LicenseContentException("證書失效時間不能早於當前時間");
        }
        if (null != notBefore && null != notAfter && notAfter.before(notBefore)){
            throw new LicenseContentException("證書生效時間不能晚於證書失效時間");
        }
        final String consumerType = content.getConsumerType();
        if (null == consumerType){
            throw new LicenseContentException("用戶類型不能為空");
        }
    }


    /**
     * 復寫validate方法，增加IP地址、Mac地址等其他信息校驗
     * @author zifangsky
     * @date 2018/4/23 10:40
     * @since 1.0.0
     * @param content LicenseContent
     */
    @Override
    protected synchronized void validate(final LicenseContent content)
            throws LicenseContentException {
        //1. 首先調用父類的validate方法
        super.validate(content);

        //2. 然后校驗自定義的License參數
        //License中可被允許的參數信息
        LicenseCheckModel expectedCheckModel = (LicenseCheckModel) content.getExtra();
        //當前服務器真實的參數信息
        LicenseCheckModel serverCheckModel = getServerInfos();

        if(expectedCheckModel != null && serverCheckModel != null){
            //校驗IP地址
            if(!checkIpAddress(expectedCheckModel.getIpAddress(),serverCheckModel.getIpAddress())){
                throw new LicenseContentException("當前服務器的IP沒在授權范圍內");
            }

            //校驗Mac地址
            if(!checkIpAddress(expectedCheckModel.getMacAddress(),serverCheckModel.getMacAddress())){
                throw new LicenseContentException("當前服務器的Mac地址沒在授權范圍內");
            }

            //校驗主板序列號
            if(!checkSerial(expectedCheckModel.getMainBoardSerial(),serverCheckModel.getMainBoardSerial())){
                throw new LicenseContentException("當前服務器的主板序列號沒在授權范圍內");
            }

            //校驗CPU序列號
            if(!checkSerial(expectedCheckModel.getCpuSerial(),serverCheckModel.getCpuSerial())){
                throw new LicenseContentException("當前服務器的CPU序列號沒在授權范圍內");
            }
        }else{
            throw new LicenseContentException("不能獲取服務器硬件信息");
        }
    }


    /**
     * 重寫XMLDecoder解析XML
     * @author zifangsky
     * @date 2018/4/25 14:02
     * @since 1.0.0
     * @param encoded XML類型字符串
     * @return java.lang.Object
     */
    private Object load(String encoded){
        BufferedInputStream inputStream = null;
        XMLDecoder decoder = null;
        try {
            inputStream = new BufferedInputStream(new ByteArrayInputStream(encoded.getBytes(XML_CHARSET)));

            decoder = new XMLDecoder(new BufferedInputStream(inputStream, DEFAULT_BUFSIZE),null,null);

            return decoder.readObject();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } finally {
            try {
                if(decoder != null){
                    decoder.close();
                }
                if(inputStream != null){
                    inputStream.close();
                }
            } catch (Exception e) {
                logger.error("XMLDecoder解析XML失敗",e);
            }
        }

        return null;
    }

    /**
     * 獲取當前服務器需要額外校驗的License參數
     * @author zifangsky
     * @date 2018/4/23 14:33
     * @since 1.0.0
     * @return demo.LicenseCheckModel
     */
    private LicenseCheckModel getServerInfos(){
        //操作系統類型
        String osName = System.getProperty("os.name").toLowerCase();
        AbstractServerInfos abstractServerInfos = null;

        //根據不同操作系統類型選擇不同的數據獲取方法
        if (osName.startsWith("windows")) {
            abstractServerInfos = new WindowsServerInfos();
        } else if (osName.startsWith("linux")) {
            abstractServerInfos = new LinuxServerInfos();
        }else{//其他服務器類型
            abstractServerInfos = new LinuxServerInfos();
        }

        return abstractServerInfos.getServerInfos();
    }

    /**
     * 校驗當前服務器的IP/Mac地址是否在可被允許的IP范圍內

     * 如果存在IP在可被允許的IP/Mac地址范圍內，則返回true
     * @author zifangsky
     * @date 2018/4/24 11:44
     * @since 1.0.0
     * @return boolean
     */
    private boolean checkIpAddress(List expectedList,List serverList){
        if(expectedList != null && expectedList.size() > 0){
            if(serverList != null && serverList.size() > 0){
                for(String expected : expectedList){
                    if(serverList.contains(expected.trim())){
                        return true;
                    }
                }
            }

            return false;
        }else {
            return true;
        }
    }

    /**
     * 校驗當前服務器硬件（主板、CPU等）序列號是否在可允許范圍內
     * @author zifangsky
     * @date 2018/4/24 14:38
     * @since 1.0.0
     * @return boolean
     */
    private boolean checkSerial(String expectedSerial,String serverSerial){
        if(StringUtils.isNotBlank(expectedSerial)){
            if(StringUtils.isNotBlank(serverSerial)){
                if(expectedSerial.equals(serverSerial)){
                    return true;
                }
            }

            return false;
        }else{
            return true;
        }
    }

}
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最后是License生成類，用於生成License證書：

package cn.zifangsky.license;

import de.schlichtherle.license.CipherParam;
import de.schlichtherle.license.DefaultCipherParam;
import de.schlichtherle.license.DefaultLicenseParam;
import de.schlichtherle.license.KeyStoreParam;
import de.schlichtherle.license.LicenseContent;
import de.schlichtherle.license.LicenseManager;
import de.schlichtherle.license.LicenseParam;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import javax.security.auth.x500.X500Principal;
import java.io.File;
import java.text.MessageFormat;
import java.util.prefs.Preferences;

/**
 * License生成類
 *
 * @author zifangsky
 * @date 2018/4/19
 * @since 1.0.0
 */
public class LicenseCreator {
    private static Logger logger = LogManager.getLogger(LicenseCreator.class);
    private final static X500Principal DEFAULT_HOLDER_AND_ISSUER = new X500Principal("CN=localhost, OU=localhost, O=localhost, L=SH, ST=SH, C=CN");
    private LicenseCreatorParam param;

    public LicenseCreator(LicenseCreatorParam param) {
        this.param = param;
    }

    /**
     * 生成License證書
     * @author zifangsky
     * @date 2018/4/20 10:58
     * @since 1.0.0
     * @return boolean
     */
    public boolean generateLicense(){
        try {
            LicenseManager licenseManager = new CustomLicenseManager(initLicenseParam());
            LicenseContent licenseContent = initLicenseContent();

            licenseManager.store(licenseContent,new File(param.getLicensePath()));

            return true;
        }catch (Exception e){
            logger.error(MessageFormat.format("證書生成失敗：{0}",param),e);
            return false;
        }
    }

    /**
     * 初始化證書生成參數
     * @author zifangsky
     * @date 2018/4/20 10:56
     * @since 1.0.0
     * @return de.schlichtherle.license.LicenseParam
     */
    private LicenseParam initLicenseParam(){
        Preferences preferences = Preferences.userNodeForPackage(LicenseCreator.class);

        //設置對證書內容加密的秘鑰
        CipherParam cipherParam = new DefaultCipherParam(param.getStorePass());

        KeyStoreParam privateStoreParam = new CustomKeyStoreParam(LicenseCreator.class
                ,param.getPrivateKeysStorePath()
                ,param.getPrivateAlias()
                ,param.getStorePass()
                ,param.getKeyPass());

        LicenseParam licenseParam = new DefaultLicenseParam(param.getSubject()
                ,preferences
                ,privateStoreParam
                ,cipherParam);

        return licenseParam;
    }

    /**
     * 設置證書生成正文信息
     * @author zifangsky
     * @date 2018/4/20 10:57
     * @since 1.0.0
     * @return de.schlichtherle.license.LicenseContent
     */
    private LicenseContent initLicenseContent(){
        LicenseContent licenseContent = new LicenseContent();
        licenseContent.setHolder(DEFAULT_HOLDER_AND_ISSUER);
        licenseContent.setIssuer(DEFAULT_HOLDER_AND_ISSUER);

        licenseContent.setSubject(param.getSubject());
        licenseContent.setIssued(param.getIssuedTime());
        licenseContent.setNotBefore(param.getIssuedTime());
        licenseContent.setNotAfter(param.getExpiryTime());
        licenseContent.setConsumerType(param.getConsumerType());
        licenseContent.setConsumerAmount(param.getConsumerAmount());
        licenseContent.setInfo(param.getDescription());

        //擴展校驗服務器硬件信息
        licenseContent.setExtra(param.getLicenseCheckModel());

        return licenseContent;
    }

}
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iii）添加一個生成證書的Controller：

這個Controller對外提供了兩個RESTful接口，分別是「獲取服務器硬件信息」和「生成證書」，示例代碼如下：

package cn.zifangsky.controller;

import cn.zifangsky.license.AbstractServerInfos;
import cn.zifangsky.license.LicenseCheckModel;
import cn.zifangsky.license.LicenseCreator;
import cn.zifangsky.license.LicenseCreatorParam;
import cn.zifangsky.license.LinuxServerInfos;
import cn.zifangsky.license.WindowsServerInfos;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.HashMap;
import java.util.Map;

/**
 *
 * 用於生成證書文件，不能放在給客戶部署的代碼里
 * @author zifangsky
 * @date 2018/4/26
 * @since 1.0.0
 */
@RestController
@RequestMapping("/license")
public class LicenseCreatorController {

    /**
     * 證書生成路徑
     */
    @Value("${license.licensePath}")
    private String licensePath;

    /**
     * 獲取服務器硬件信息
     * @author zifangsky
     * @date 2018/4/26 13:13
     * @since 1.0.0
     * @param osName 操作系統類型，如果為空則自動判斷
     * @return com.ccx.models.license.LicenseCheckModel
     */
    @RequestMapping(value = "/getServerInfos",produces = {MediaType.APPLICATION_JSON_UTF8_VALUE})
    public LicenseCheckModel getServerInfos(@RequestParam(value = "osName",required = false) String osName) {
        //操作系統類型
        if(StringUtils.isBlank(osName)){
            osName = System.getProperty("os.name");
        }
        osName = osName.toLowerCase();

        AbstractServerInfos abstractServerInfos = null;

        //根據不同操作系統類型選擇不同的數據獲取方法
        if (osName.startsWith("windows")) {
            abstractServerInfos = new WindowsServerInfos();
        } else if (osName.startsWith("linux")) {
            abstractServerInfos = new LinuxServerInfos();
        }else{//其他服務器類型
            abstractServerInfos = new LinuxServerInfos();
        }

        return abstractServerInfos.getServerInfos();
    }

    /**
     * 生成證書
     * @author zifangsky
     * @date 2018/4/26 13:13
     * @since 1.0.0
     * @param param 生成證書需要的參數，如：{"subject":"ccx-models","privateAlias":"privateKey","keyPass":"5T7Zz5Y0dJFcqTxvzkH5LDGJJSGMzQ","storePass":"3538cef8e7","licensePath":"C:/Users/zifangsky/Desktop/license.lic","privateKeysStorePath":"C:/Users/zifangsky/Desktop/privateKeys.keystore","issuedTime":"2018-04-26 14:48:12","expiryTime":"2018-12-31 00:00:00","consumerType":"User","consumerAmount":1,"description":"這是證書描述信息","licenseCheckModel":{"ipAddress":["192.168.245.1","10.0.5.22"],"macAddress":["00-50-56-C0-00-01","50-7B-9D-F9-18-41"],"cpuSerial":"BFEBFBFF000406E3","mainBoardSerial":"L1HF65E00X9"}}
     * @return java.util.Map
     */
    @RequestMapping(value = "/generateLicense",produces = {MediaType.APPLICATION_JSON_UTF8_VALUE})
    public Map generateLicense(@RequestBody(required = true) LicenseCreatorParam param) {
        Map resultMap = new HashMap(2);

        if(StringUtils.isBlank(param.getLicensePath())){
            param.setLicensePath(licensePath);
        }

        LicenseCreator licenseCreator = new LicenseCreator(param);
        boolean result = licenseCreator.generateLicense();

        if(result){
            resultMap.put("result","ok");
            resultMap.put("msg",param);
        }else{
            resultMap.put("result","error");
            resultMap.put("msg","證書文件生成失敗！");
        }

        return resultMap;
    }

}
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（2）使用JDK自帶的 keytool 工具生成公私鑰證書庫：

假如我們設置公鑰庫密碼為： public_password1234 ，私鑰庫密碼為： private_password1234 ，則生成命令如下：

#生成命令
keytool -genkeypair -keysize 1024 -validity 3650 -alias "privateKey" -keystore "privateKeys.keystore" -storepass "public_password1234" -keypass "private_password1234" -dname "CN=localhost, OU=localhost, O=localhost, L=SH, ST=SH, C=CN"

#導出命令
keytool -exportcert -alias "privateKey" -keystore "privateKeys.keystore" -storepass "public_password1234" -file "certfile.cer"

#導入命令
keytool -import -alias "publicCert" -file "certfile.cer" -keystore "publicCerts.keystore" -storepass "public_password1234"
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上述命令執行完成之后，會在當前路徑下生成三個文件，分別是：privateKeys.keystore、publicCerts.keystore、certfile.cer。 其中文件certfile.cer不再需要可以刪除，文件privateKeys.keystore用於當前的 ServerDemo 項目給客戶生成license文件，而文件publicCerts.keystore則隨應用代碼部署到客戶服務器，用戶解密license文件並校驗其許可信息 。

（3）為客戶生成license文件：

將 ServerDemo 項目部署到客戶服務器，通過以下接口獲取服務器的硬件信息（等license文件生成后需要刪除這個項目。當然也可以通過命令手動獲取客戶服務器的硬件信息，然后在開發者自己的電腦上生成license文件）：

 

注：上圖使用的是 Firefox 的 RESTClient 插件

然后生成license文件：

 

請求時需要在Header中添加一個 Content-Type ，其值為： application/json;charset=UTF-8 。參數示例如下：

{
	"subject": "license_demo",
	"privateAlias": "privateKey",
	"keyPass": "private_password1234",
	"storePass": "public_password1234",
	"licensePath": "C:/Users/zifangsky/Desktop/license_demo/license.lic",
	"privateKeysStorePath": "C:/Users/zifangsky/Desktop/license_demo/privateKeys.keystore",
	"issuedTime": "2018-07-10 00:00:01",
	"expiryTime": "2019-12-31 23:59:59",
	"consumerType": "User",
	"consumerAmount": 1,
	"description": "這是證書描述信息",
	"licenseCheckModel": {
		"ipAddress": ["192.168.245.1", "10.0.5.22"],
		"macAddress": ["00-50-56-C0-00-01", "50-7B-9D-F9-18-41"],
		"cpuSerial": "BFEBFBFF000406E3",
		"mainBoardSerial": "L1HF65E00X9"
	}
}
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如果請求成功，那么最后會在 licensePath 參數設置的路徑生成一個 license.lic 的文件，這個文件就是給客戶部署代碼的服務器許可文件。

三 給客戶部署的應用中添加License校驗

（1）使用Spring Boot構建測試項目ServerDemo，用於模擬給客戶部署的應用：

注：這個完整的Demo項目可以參考： gitee.com/zifangsky/L…

（2）添加License校驗類需要的參數：

package cn.zifangsky.license;

/**
 * License校驗類需要的參數
 *
 * @author zifangsky
 * @date 2018/4/20
 * @since 1.0.0
 */
public class LicenseVerifyParam {

    /**
     * 證書subject
     */
    private String subject;

    /**
     * 公鑰別稱
     */
    private String publicAlias;

    /**
     * 訪問公鑰庫的密碼
     */
    private String storePass;

    /**
     * 證書生成路徑
     */
    private String licensePath;

    /**
     * 密鑰庫存儲路徑
     */
    private String publicKeysStorePath;

    public LicenseVerifyParam() {

    }

    public LicenseVerifyParam(String subject, String publicAlias, String storePass, String licensePath, String publicKeysStorePath) {
        this.subject = subject;
        this.publicAlias = publicAlias;
        this.storePass = storePass;
        this.licensePath = licensePath;
        this.publicKeysStorePath = publicKeysStorePath;
    }

    //省略setter和getter方法

    @Override
    public String toString() {
        return "LicenseVerifyParam{" +
                "subject='" + subject + ''' +
                ", publicAlias='" + publicAlias + ''' +
                ", storePass='" + storePass + ''' +
                ", licensePath='" + licensePath + ''' +
                ", publicKeysStorePath='" + publicKeysStorePath + ''' +
                '}';
    }
}
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然后再添加License校驗類：

package cn.zifangsky.license;

import de.schlichtherle.license.*;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.io.File;
import java.text.DateFormat;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.prefs.Preferences;

/**
 * License校驗類
 *
 * @author zifangsky
 * @date 2018/4/20
 * @since 1.0.0
 */
public class LicenseVerify {
    private static Logger logger = LogManager.getLogger(LicenseVerify.class);

    /**
     * 安裝License證書
     * @author zifangsky
     * @date 2018/4/20 16:26
     * @since 1.0.0
     */
    public synchronized LicenseContent install(LicenseVerifyParam param){
        LicenseContent result = null;
        DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

        //1. 安裝證書
        try{
            LicenseManager licenseManager = LicenseManagerHolder.getInstance(initLicenseParam(param));
            licenseManager.uninstall();

            result = licenseManager.install(new File(param.getLicensePath()));
            logger.info(MessageFormat.format("證書安裝成功，證書有效期：{0} - {1}",format.format(result.getNotBefore()),format.format(result.getNotAfter())));
        }catch (Exception e){
            logger.error("證書安裝失敗！",e);
        }

        return result;
    }

    /**
     * 校驗License證書
     * @author zifangsky
     * @date 2018/4/20 16:26
     * @since 1.0.0
     * @return boolean
     */
    public boolean verify(){
        LicenseManager licenseManager = LicenseManagerHolder.getInstance(null);
        DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

        //2. 校驗證書
        try {
            LicenseContent licenseContent = licenseManager.verify();
//            System.out.println(licenseContent.getSubject());

            logger.info(MessageFormat.format("證書校驗通過，證書有效期：{0} - {1}",format.format(licenseContent.getNotBefore()),format.format(licenseContent.getNotAfter())));
            return true;
        }catch (Exception e){
            logger.error("證書校驗失敗！",e);
            return false;
        }
    }

    /**
     * 初始化證書生成參數
     * @author zifangsky
     * @date 2018/4/20 10:56
     * @since 1.0.0
     * @param param License校驗類需要的參數
     * @return de.schlichtherle.license.LicenseParam
     */
    private LicenseParam initLicenseParam(LicenseVerifyParam param){
        Preferences preferences = Preferences.userNodeForPackage(LicenseVerify.class);

        CipherParam cipherParam = new DefaultCipherParam(param.getStorePass());

        KeyStoreParam publicStoreParam = new CustomKeyStoreParam(LicenseVerify.class
                ,param.getPublicKeysStorePath()
                ,param.getPublicAlias()
                ,param.getStorePass()
                ,null);

        return new DefaultLicenseParam(param.getSubject()
                ,preferences
                ,publicStoreParam
                ,cipherParam);
    }

}
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（3）添加Listener，用於在項目啟動的時候安裝License證書：

package cn.zifangsky.license;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;

/**
 * 在項目啟動時安裝證書
 *
 * @author zifangsky
 * @date 2018/4/24
 * @since 1.0.0
 */
@Component
public class LicenseCheckListener implements ApplicationListener {
    private static Logger logger = LogManager.getLogger(LicenseCheckListener.class);

    /**
     * 證書subject
     */
    @Value("${license.subject}")
    private String subject;

    /**
     * 公鑰別稱
     */
    @Value("${license.publicAlias}")
    private String publicAlias;

    /**
     * 訪問公鑰庫的密碼
     */
    @Value("${license.storePass}")
    private String storePass;

    /**
     * 證書生成路徑
     */
    @Value("${license.licensePath}")
    private String licensePath;

    /**
     * 密鑰庫存儲路徑
     */
    @Value("${license.publicKeysStorePath}")
    private String publicKeysStorePath;

    @Override
    public void onApplicationEvent(ContextRefreshedEvent event) {
        //root application context 沒有parent
        ApplicationContext context = event.getApplicationContext().getParent();
        if(context == null){
            if(StringUtils.isNotBlank(licensePath)){
                logger.info("++++++++ 開始安裝證書 ++++++++");

                LicenseVerifyParam param = new LicenseVerifyParam();
                param.setSubject(subject);
                param.setPublicAlias(publicAlias);
                param.setStorePass(storePass);
                param.setLicensePath(licensePath);
                param.setPublicKeysStorePath(publicKeysStorePath);

                LicenseVerify licenseVerify = new LicenseVerify();
                //安裝證書
                licenseVerify.install(param);

                logger.info("++++++++ 證書安裝結束 ++++++++");
            }
        }
    }
}
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注：上面代碼使用參數信息如下所示：

#License相關配置
license.subject=license_demo
license.publicAlias=publicCert
license.storePass=public_password1234
license.licensePath=C:/Users/zifangsky/Desktop/license_demo/license.lic
license.publicKeysStorePath=C:/Users/zifangsky/Desktop/license_demo/publicCerts.keystore
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（4）添加攔截器，用於在登錄的時候校驗License證書：

package cn.zifangsky.license;

import com.alibaba.fastjson.JSON;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;

/**
 * LicenseCheckInterceptor
 *
 * @author zifangsky
 * @date 2018/4/25
 * @since 1.0.0
 */
public class LicenseCheckInterceptor extends HandlerInterceptorAdapter{
    private static Logger logger = LogManager.getLogger(LicenseCheckInterceptor.class);

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        LicenseVerify licenseVerify = new LicenseVerify();

        //校驗證書是否有效
        boolean verifyResult = licenseVerify.verify();

        if(verifyResult){
            return true;
        }else{
            response.setCharacterEncoding("utf-8");
            Map result = new HashMap(1);
            result.put("result","您的證書無效，請核查服務器是否取得授權或重新申請證書！");

            response.getWriter().write(JSON.toJSONString(result));

            return false;
        }
    }

}
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（5）添加登錄頁面並測試：

添加一個登錄頁面，可以在license校驗失敗的時候給出錯誤提示：

        //回車登錄
        function enterlogin(e) {
            var key = window.event ? e.keyCode : e.which;
            if (key === 13) {
                userLogin();
            }
        }

        //用戶密碼登錄
        function userLogin() {
            //獲取用戶名、密碼
            var username = $("#username").val();
            var password = $("#password").val();

            if (username == null || username === "") {
                $("#errMsg").text("請輸入登陸用戶名！");
                $("#errMsg").attr("style", "display:block");
                return;
            }
            if (password == null || password === "") {
                $("#errMsg").text("請輸入登陸密碼！");
                $("#errMsg").attr("style", "display:block");
                return;
            }

            $.ajax({
                url: "/check",
                type: "POST",
                dataType: "json",
                async: false,
                data: {
                    "username": username,
                    "password": password
                },
                success: function (data) {
                    if (data.code == "200") {
                        $("#errMsg").attr("style", "display:none");
                        window.location.href = '/userIndex';
                    } else if (data.result != null) {
                        $("#errMsg").text(data.result);
                        $("#errMsg").attr("style", "display:block");
                    } else {
                        $("#errMsg").text(data.msg);
                        $("#errMsg").attr("style", "display:block");
                    }
                }
            });
        }

LOGIN

 

 

錯誤提示

登錄

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i）啟動項目，可以發現之前生成的license證書可以正常使用：

 

這時訪問 http://127.0.0.1:7080/login ，可以正常登錄：

 

ii）重新生成license證書，並設置很短的有效期。

iii）重新啟動ClientDemo，並再次登錄，可以發現爆以下提示信息：

至此，關於使用 TrueLicense 生成和驗證License就結束了，文章中沒有說到的類可以自行參考示例源碼，謝謝閱讀。