根据优化建议修改

.code.yml

@@ -8,10 +8,10 @@ source:
   # 提供产品代码库中工具或框架自动生成的且在代码库中的代码，没有可为空。以便后续代码统计环节进行排除等特殊处理。
   auto_generate_source:
     # 自动生成代码文件的正则表达式，若无统一标识格式，可以指定具体目录，样例可参考test_source举例
-    filepath_regex: [ ".*/service/.*" ]
+    filepath_regex: [ ".*/service/.*"]
 
   # 提供产品代码库中直接以源码形式存在的第三方代码目录或代码文件名的正则表达。
   # 此处备注的第三方代码在后续统计代码量环节会被排除，若代码库中不存在需要排除的第三方代码，该项配置标识可为空
   third_party_source:
     #第三方代码文件的正则表达式，若无统一标识格式，可以指定具体目录，样例可参考test_source举例
-    filepath_regex: [ "/vendor/.*" ]
+    filepath_regex: [ "/vendor/.*", ".*/buildSrc/.*" ]

.gitignore

@@ -10,7 +10,7 @@
 
 
 # Gradle files
-.gradle/*
+.gradle
 build/*
 out/*
 */build/*

README.md

@@ -42,7 +42,6 @@ package com.wechat.pay.java.service;
 
 import com.wechat.pay.java.core.Config;
 import com.wechat.pay.java.core.RSAConfig;
-import com.wechat.pay.java.core.cipher.AeadAesCipher;
 import com.wechat.pay.java.service.certificate.CertificateService;
 import java.nio.charset.StandardCharsets;
 import java.security.cert.X509Certificate;
@@ -69,8 +68,7 @@ public class QuickStart {
   public static void downloadCertificate() {
     CertificateService certificateService = buildCertificateService();
     List<X509Certificate> certificates =
-        certificateService.downloadCertificate(
-            new AeadAesCipher(apiV3Key.getBytes(StandardCharsets.UTF_8)));
+        certificateService.downloadCertificate(apiV3Key.getBytes(StandardCharsets.UTF_8));
   }
   /**
    * 构建证书下载服务

core/src/main/java/com/wechat/pay/java/core/RSAConfig.java

@@ -154,6 +154,11 @@ public RSAConfig build() {
       requireNonNull(merchantSerialNumber);
       requireNonNull(merchantId);
       requireNonNull(wechatPayCertificates);
+      if (wechatPayCertificates.isEmpty()) {
+        throw new IllegalArgumentException(
+            "Build RSAConfig, wechatPayCertificates is empty.Please "
+                + "call wechatPayCertificates() or wechatPayCertificatesFromPath() method.");
+      }
       X509Certificate latestCertificate = null;
       // 获取最近可用的微信支付平台证书
       for (X509Certificate x509Certificate : wechatPayCertificates) {

core/src/main/java/com/wechat/pay/java/core/cipher/SignatureResult.java

@@ -36,6 +36,6 @@ public String getCertificateSerialNumber() {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 }

core/src/main/java/com/wechat/pay/java/core/exception/ServiceException.java

@@ -26,13 +26,13 @@ public class ServiceException extends WechatPayException {
   public ServiceException(HttpRequest httpRequest, int httpStatusCode, String responseBody) {
     super(
         String.format(
-            "Wrong HttpStatusCode[%d]\nhttResponseBody[%.1024s]\tHttpRequest[%s]",
+            "Wrong HttpStatusCode[%d]%nhttResponseBody[%.1024s]\tHttpRequest[%s]",
             httpStatusCode, responseBody, httpRequest));
     this.httpRequest = httpRequest;
     this.httpStatusCode = httpStatusCode;
     this.responseBody = responseBody;
     if (responseBody != null) {
-      JsonObject jsonObject = GsonUtil.createGson().fromJson(responseBody, JsonObject.class);
+      JsonObject jsonObject = GsonUtil.getGson().fromJson(responseBody, JsonObject.class);
       JsonElement code = jsonObject.get("code");
       JsonElement message = jsonObject.get("message");
       this.errorCode = code == null ? null : code.getAsString();

core/src/main/java/com/wechat/pay/java/core/http/FileRequestBody.java

@@ -57,7 +57,7 @@ public String getContentType() {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 
   public static class Builder {

core/src/main/java/com/wechat/pay/java/core/http/HttpRequest.java

@@ -74,7 +74,7 @@ public RequestBody getBody() {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 
   public static class Builder {

core/src/main/java/com/wechat/pay/java/core/http/HttpResponse.java

@@ -61,7 +61,7 @@ public T getServiceResponse() {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 
   public static class Builder<T> {
@@ -89,7 +89,7 @@ public HttpResponse<T> build() {
       }
       ResponseBody body = new JsonResponseBody.Builder().body(originalResponse.getBody()).build();
       T serviceResponse =
-          GsonUtil.createGson().fromJson(originalResponse.getBody(), serviceResponseType);
+          GsonUtil.getGson().fromJson(originalResponse.getBody(), serviceResponseType);
       return new HttpResponse<>(
           originalResponse.getRequest(), originalResponse.getHeaders(), body, serviceResponse);
     }

core/src/main/java/com/wechat/pay/java/core/http/JsonRequestBody.java

@@ -29,7 +29,7 @@ public String getContentType() {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 
   public static class Builder {

core/src/main/java/com/wechat/pay/java/core/http/JsonResponseBody.java

@@ -27,7 +27,7 @@ public String getContentType() {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 
   public static class Builder {

core/src/main/java/com/wechat/pay/java/core/http/UrlEncoder.java

@@ -0,0 +1,22 @@
+package com.wechat.pay.java.core.http;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+
+public class UrlEncoder {
+
+  /**
+   * 对参数进行url编码
+   *
+   * @param string 待编码的字符串
+   * @return 编码后的字符串
+   */
+  public static String urlEncode(String string) {
+    try {
+      return URLEncoder.encode(string, StandardCharsets.UTF_8.name());
+    } catch (UnsupportedEncodingException e) {
+      throw new RuntimeException(e);
+    }
+  }
+}

core/src/main/java/com/wechat/pay/java/core/http/okhttp/OkHttpClientAdapter.java

@@ -25,7 +25,6 @@
 public final class OkHttpClientAdapter extends AbstractHttpClient {
 
   private static final Logger logger = LoggerFactory.getLogger(OkHttpClientAdapter.class);
-
   private static final String META_NAME = "meta";
   private static final String FILE_NAME = "file";
 

core/src/main/java/com/wechat/pay/java/core/notification/Notification.java

@@ -84,6 +84,6 @@ public void setPlaintext(String plaintext) {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 }

core/src/main/java/com/wechat/pay/java/core/notification/NotificationParser.java

@@ -16,7 +16,7 @@
 /** 通知解析器 */
 public class NotificationParser {
 
-  private final Gson gson = GsonUtil.createGson();
+  private final Gson gson = GsonUtil.getGson();
   private final Map<String, Verifier> verifiers = new HashMap<>();
   private final Map<String, AeadCipher> ciphers = new HashMap<>();
 

core/src/main/java/com/wechat/pay/java/core/notification/RequestParam.java

@@ -49,7 +49,7 @@ public String getSignType() {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 
   public static class Builder {

core/src/main/java/com/wechat/pay/java/core/notification/Resource.java

@@ -53,7 +53,7 @@ public void setOriginalType(String originalType) {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 
   public String getNonce() {

core/src/main/java/com/wechat/pay/java/core/util/GsonUtil.java

@@ -12,10 +12,10 @@ public class GsonUtil {
 
   private GsonUtil() {}
 
-  private static final GsonBuilder gsonBuilder;
+  private static final Gson gson;
 
   static {
-    gsonBuilder =
+    gson =
         new GsonBuilder()
             .disableHtmlEscaping()
             .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
@@ -44,10 +44,11 @@ public boolean shouldSkipField(FieldAttributes fieldAttributes) {
                   public boolean shouldSkipClass(Class<?> aClass) {
                     return false;
                   }
-                });
+                })
+            .create();
   }
 
-  public static Gson createGson() {
-    return gsonBuilder.create();
+  public static Gson getGson() {
+    return gson;
   }
 }

core/src/main/java/com/wechat/pay/java/core/util/IOUtil.java

@@ -101,6 +101,8 @@ public static String toString(InputStream inputStream) throws IOException {
    * @throws IOException 读取字节失败、关闭流失败等
    */
   public static String loadStringFromPath(String path) throws IOException {
-    return toString(Files.newInputStream(Paths.get(path)));
+    try (InputStream inputStream = Files.newInputStream(Paths.get(path))) {
+      return toString(inputStream);
+    }
   }
 }

core/src/main/java/com/wechat/pay/java/core/util/PemUtil.java

@@ -5,6 +5,7 @@
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
 import java.security.KeyFactory;
 import java.security.NoSuchAlgorithmException;
 import java.security.PrivateKey;
@@ -112,7 +113,7 @@ public static X509Certificate loadX509FromPath(String certificatePath) {
   public static X509Certificate loadX509FromString(String certificateString) {
     X509Certificate certificate = null;
     try (ByteArrayInputStream inputStream =
-        new ByteArrayInputStream(certificateString.getBytes())) {
+        new ByteArrayInputStream(certificateString.getBytes(StandardCharsets.UTF_8))) {
       certificate = loadX509FromStream(inputStream);
     } catch (IOException e) {
       logger.warn("Get certificate from certificate string,inputStream close failed.", e);

core/src/test/java/com/wechat/pay/java/core/http/OkHttpClientAdapterTest.java

@@ -180,7 +180,7 @@ public <T> boolean validate(HttpHeaders responseHeaders, String body) {
   }
 
   @Test
-  public void testExecuteSendPostRequestWithJsonBody() {
+  public void testExecuteSendPostReqWithJsonBody() {
     Credential executeSendPostCredential =
         new Credential() {
           @Override

core/src/test/java/com/wechat/pay/java/core/model/TestServiceRequest.java

@@ -37,6 +37,6 @@ public void setOutTradeNo(String outTradeNo) {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 }

core/src/test/java/com/wechat/pay/java/core/model/TestServiceResponse.java

@@ -16,6 +16,6 @@ public void setRequestId(String requestId) {
 
   @Override
   public String toString() {
-    return GsonUtil.createGson().toJson(this);
+    return GsonUtil.getGson().toJson(this);
   }
 }

core/src/test/java/com/wechat/pay/java/core/notification/NotificationParserTest.java

@@ -47,7 +47,7 @@ public class NotificationParserTest {
   public static void init() throws IOException {
 
     notificationJson = IOUtil.loadStringFromPath(NOTIFICATION_JSON_PATH);
-    notification = GsonUtil.createGson().fromJson(notificationJson, Notification.class);
+    notification = GsonUtil.getGson().fromJson(notificationJson, Notification.class);
     verifyAlgorithm = notification.getResource().getAlgorithm();
     verifiyNonce = notification.getResource().getNonce();
 
@@ -99,6 +99,6 @@ public void testParse() {
             .build();
 
     Object decryptObject = parser.parse(requestParam, Object.class);
-    Assert.assertEquals(DECRYPT_OBJECT_STRING, GsonUtil.createGson().toJson(decryptObject));
+    Assert.assertEquals(DECRYPT_OBJECT_STRING, GsonUtil.getGson().toJson(decryptObject));
   }
 }

core/src/test/java/com/wechat/pay/java/core/util/GsonUtilTest.java

@@ -30,7 +30,7 @@ public void testCreateGson() {
             + outTradeNo
             + "\"\n"
             + "}";
-    Gson gson = GsonUtil.createGson();
+    Gson gson = GsonUtil.getGson();
     TestServiceRequest getTestServiceRequest =
         gson.fromJson(testServiceRequestJson, TestServiceRequest.class);
     TestServiceRequest createTestServiceRequest = new TestServiceRequest();

service/src/example/java/com/wechat/pay/java/service/QuickStart.java

@@ -2,7 +2,6 @@
 
 import com.wechat.pay.java.core.Config;
 import com.wechat.pay.java.core.RSAConfig;
-import com.wechat.pay.java.core.cipher.AeadAesCipher;
 import com.wechat.pay.java.service.certificate.CertificateService;
 import java.nio.charset.StandardCharsets;
 import java.security.cert.X509Certificate;
@@ -29,8 +28,7 @@ public static void main(String[] args) {
   public static void downloadCertificate() {
     CertificateService certificateService = buildCertificateService();
     List<X509Certificate> certificates =
-        certificateService.downloadCertificate(
-            new AeadAesCipher(apiV3Key.getBytes(StandardCharsets.UTF_8)));
+        certificateService.downloadCertificate(apiV3Key.getBytes(StandardCharsets.UTF_8));
   }
   /**
    * 构建证书下载服务

service/src/example/java/com/wechat/pay/java/service/certificate/CertificateServiceExample.java

@@ -1,8 +1,6 @@
 package com.wechat.pay.java.service.certificate;
 
 import com.wechat.pay.java.core.RSAConfig;
-import com.wechat.pay.java.core.cipher.AeadAesCipher;
-import com.wechat.pay.java.core.cipher.AeadCipher;
 import java.nio.charset.StandardCharsets;
 import java.security.cert.X509Certificate;
 import java.util.List;
@@ -31,13 +29,11 @@ public static void main(String[] args) {
     // 初始化证书服务
     service = new CertificateService(rsaConfig);
     // 设置商户apiV3密钥，apiV3密钥用于解密下载证书
-    AeadCipher aeadCipher = new AeadAesCipher(apiV3Key.getBytes(StandardCharsets.UTF_8));
     // ... 调用接口
   }
 
   /** 下载证书 */
   public static List<X509Certificate> downloadCertificate() {
-    AeadCipher aeadCipher = new AeadAesCipher(apiV3Key.getBytes(StandardCharsets.UTF_8));
-    return service.downloadCertificate(aeadCipher);
+    return service.downloadCertificate(apiV3Key.getBytes(StandardCharsets.UTF_8));
   }
 }

service/src/example/java/com/wechat/pay/java/service/payment/app/AppServiceExample.java

@@ -33,27 +33,23 @@ public static void main(String[] args) {
     service = new AppService(config);
     // ... 调用接口
   }
-
   /** 关闭订单 */
   public static void closeOrder() {
 
     CloseOrderRequest request = new CloseOrderRequest();
     service.closeOrder(request);
   }
-
   /** APP支付下单 */
   public static PrepayResponse prepay() {
     PrepayRequest request = new PrepayRequest();
     return service.prepay(request);
   }
-
   /** 微信支付订单号查询订单 */
   public static Transaction queryOrderById() {
 
     QueryOrderByIdRequest request = new QueryOrderByIdRequest();
     return service.queryOrderById(request);
   }
-
   /** 商户订单号查询订单 */
   public static Transaction queryOrderByOutTradeNo() {