init: 简单的验证授权

.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
+/.idea/
+/.idea/.gitignore
+/.idea/compiler.xml
+/.idea/encodings.xml
+/.idea/jarRepositories.xml
+/.idea/misc.xml
+/.idea/uiDesigner.xml
+/.idea/vcs.xml
+/.idea/workspace.xml

nl-verify-check-sdk/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.nl</groupId>
+        <artifactId>nl-verify-check</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>nl-verify-check-sdk</artifactId>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <version>2.7.3</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.22</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+            <version>1.2.83</version>
+        </dependency>
+    </dependencies>
+
+</project>

nl-verify-check-sdk/src/main/java/org/nl/core/AuthInterceptor.java

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+package org.nl.core;
+
+import com.alibaba.fastjson.JSONObject;
+import org.nl.util.RSAUtil;
+import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * @Author: lyd
+ * @Date: 2025/8/26
+ */
+public class AuthInterceptor extends HandlerInterceptorAdapter {
+
+    @Override
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+        String authCode = request.getHeader("cdk"); // 假设从 Header 获取
+
+        if (authCode == null || authCode.isEmpty()) {
+            response.setContentType("text/html;charset=UTF-8");
+            response.setStatus(402);
+            response.getWriter().write(JSONObject.toJSONString(LicenseResult.requestResult(false, "请收入授权码", null)));
+            return false;
+        }
+        String expirationStr ="";
+        try {
+            // 解密获取到期时间
+            expirationStr = RSAUtil.decrypt(authCode);
+            if ("-1".equals(expirationStr)) {
+                return true;
+            }
+            LocalDate expirationDate = LocalDate.parse(expirationStr, DateTimeFormatter.ofPattern("yyyy-MM-dd"));
+            if (LocalDate.now().isAfter(expirationDate)) {
+                response.setContentType("text/html;charset=UTF-8");
+                response.setStatus(402);
+                response.getWriter().write(JSONObject.toJSONString(LicenseResult.requestResult(false, "授权码已到期", null)));
+                return false;
+            }
+        } catch (Exception e) {
+            // 解密失败或格式错误
+            response.setContentType("text/html;charset=UTF-8");
+            response.setStatus(402);
+            response.getWriter().write(JSONObject.toJSONString(LicenseResult.requestResult(false, "解密失败或格式错误", null)));
+            return false;
+        }
+        return true;
+    }
+}

nl-verify-check-sdk/src/main/java/org/nl/core/LicenseResult.java

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+package org.nl.core;
+
+import lombok.Builder;
+import lombok.Data;
+
+/**
+ * @Author: lyd
+ * @Date: 2025/8/14
+ */
+@Data
+@Builder
+public class LicenseResult {
+    /** 检验结果 */
+    private Boolean result;
+    /** 附加信息 */
+    private String message;
+    /** 证书key */
+    private String content;
+    public static LicenseResult requestResult(Boolean result, String message, String content) {
+        return LicenseResult.builder()
+                .message(message)
+                .result(result)
+                .content(content)
+                .build();
+    }
+    public static LicenseResult requestOk(String message, String content) {
+        return LicenseResult.builder()
+                .message(message)
+                .result(true)
+                .content(content)
+                .build();
+    }
+}

nl-verify-check-sdk/src/main/java/org/nl/core/WebConfig.java

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+package org.nl.core;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+/**
+ * @Author: lyd
+ * @Date: 2025/8/26
+ */
+@Configuration
+public class WebConfig implements WebMvcConfigurer {
+    @Override
+    public void addInterceptors(InterceptorRegistry registry) {
+        registry.addInterceptor(new AuthInterceptor()).addPathPatterns("/**");
+    }
+}

nl-verify-check-sdk/src/main/java/org/nl/util/RSAUtil.java

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+package org.nl.util;
+
+import org.springframework.util.ResourceUtils;
+
+import javax.crypto.Cipher;
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.security.KeyFactory;
+import java.security.PrivateKey;
+import java.security.spec.PKCS8EncodedKeySpec;
+import java.util.Base64;
+
+/**
+ * @Author: lyd
+ * @Date: 2025/8/13
+ */
+public class RSAUtil {
+    private static PrivateKey privateKey;
+
+    public static synchronized PrivateKey getPrivateKey() throws Exception {
+        if (privateKey == null) {
+            // 从 resources/private_key.txt 读取 Base64
+            String filePath = ResourceUtils.getFile("classpath:private_key.txt").getPath();
+            BufferedReader reader = new BufferedReader(new FileReader(filePath));
+            StringBuilder sb = new StringBuilder();
+            String line;
+            while ((line = reader.readLine()) != null) {
+                sb.append(line);
+            }
+            reader.close();
+
+            byte[] privateKeyBytes = Base64.getDecoder().decode(sb.toString());
+            PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(privateKeyBytes);
+            KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+            privateKey = keyFactory.generatePrivate(keySpec);
+        }
+        return privateKey;
+    }
+
+    public static String decrypt(String authCode) throws Exception {
+        byte[] encryptedBytes = Base64.getDecoder().decode(authCode);
+        Cipher cipher = Cipher.getInstance("RSA");
+        cipher.init(Cipher.DECRYPT_MODE, getPrivateKey());
+        byte[] decrypted = cipher.doFinal(encryptedBytes);
+        return new String(decrypted, "UTF-8");
+    }
+}

nl-verify-check-sdk/src/main/resources/private_key.txt

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

nl-verify-check-test/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.nl</groupId>
+        <artifactId>nl-verify-check</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>nl-verify-check-test</artifactId>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.nl</groupId>
+            <artifactId>nl-verify-check-sdk</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+    </dependencies>
+
+</project>

nl-verify-check-test/src/main/java/org/nl/GenerateAuthCode.java

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+package org.nl;
+
+import javax.crypto.Cipher;
+import java.security.KeyFactory;
+import java.security.PublicKey;
+import java.security.spec.X509EncodedKeySpec;
+import java.util.Base64;
+
+/**
+ * @Author: lyd
+ * @Date: 2025/8/13
+ */
+public class GenerateAuthCode {
+    public static void main(String[] args) throws Exception {
+        String publicKeyBase64 = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgW1kN/JmXZjl9+/Zsl/zRZ/6hSHj95G6IA4lpRrXNSTbeng0rDhEoVDY96PCaOUGnqcqOo+LLT+FqZggFBbHcjqHc1NEetD+4BTkdTiHSsskNjkvSdTHTV0UbpLHw9VlRvms6AfobkKNg+dm3F0o57tVA0Q61zd112YIdS9lf2g4PhovUACLDAx7TetsyrB7OLZQpR7dCjkUnQMTfUYz81BTWF38Vt3TUzPc35baDNm4HlHxutReRDIqZABFYw2+Pj7tgbDVGpo8vOXig1gPDcQ1Orrg5MSzYi8eSoqS8TkfhDOP3DqkcB3RI/JmraRpagUjnzsV3ekoeV5lUrQY7QIDAQAB"; // 从生成器中获取
+        String expirationDate = "2025-12-31"; // 到期时间原文
+
+        // 还原公钥
+        byte[] publicKeyBytes = Base64.getDecoder().decode(publicKeyBase64);
+        X509EncodedKeySpec keySpec = new X509EncodedKeySpec(publicKeyBytes);
+        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+        PublicKey publicKey = keyFactory.generatePublic(keySpec);
+
+        // 加密
+//        Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding"); // 标准填充模式
+        Cipher cipher = Cipher.getInstance("RSA"); // 标准填充模式
+        cipher.init(Cipher.ENCRYPT_MODE, publicKey);
+        byte[] encrypted = cipher.doFinal(expirationDate.getBytes("UTF-8"));
+        String authCode = Base64.getEncoder().encodeToString(encrypted);
+
+        System.out.println("授权码: " + authCode);
+    }
+}

nl-verify-check-test/src/main/java/org/nl/Main.java

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+package org.nl;
+
+/**
+ * @Author: lyd
+ * @Date: ${DATE}
+ */
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}

nl-verify-check-test/src/main/java/org/nl/RSAKeyGenerator.java

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+package org.nl;
+
+import java.security.*;
+import java.util.Base64;
+
+/**
+ * @Author: lyd
+ * @Date: 2025/8/13
+ */
+public class RSAKeyGenerator {
+    public static void main(String[] args) {
+        try {
+            KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
+            keyGen.initialize(2048); // 推荐 2048 位密钥，安全级别高
+            KeyPair pair = keyGen.generateKeyPair();
+            PrivateKey privateKey = pair.getPrivate();
+            PublicKey publicKey = pair.getPublic();
+
+            // Base64 编码，便于存储和传输
+            String privateKeyBase64 = Base64.getEncoder().encodeToString(privateKey.getEncoded());
+            String publicKeyBase64 = Base64.getEncoder().encodeToString(publicKey.getEncoded());
+
+            System.out.println("Private Key (Base64): " + privateKeyBase64);
+            System.out.println("Public Key (Base64): " + publicKeyBase64);
+        } catch (NoSuchAlgorithmException e) {
+            e.printStackTrace();
+        }
+    }
+}

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.nl</groupId>
+    <artifactId>nl-verify-check</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>pom</packaging>
+    <modules>
+        <module>nl-verify-check-sdk</module>
+        <module>nl-verify-check-test</module>
+    </modules>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

src/main/java/org/nl/Main.java

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+package org.nl;
+
+/**
+ * @Author: lyd
+ * @Date: ${DATE}
+ */
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}