T getPayInfo(TradeTypeEnum tradeType, String appId, String mchId, Pri
throw new WxRuntimeException("不支持的支付类型");
}
}
+
+ /**
+ *
+ * 根据已有的prepay_id生成JSAPI支付所需的参数对象（解耦版本）
+ * 应用场景：
+ * 1. 用户已经通过createPartnerOrderV3或unifiedPartnerOrderV3获取了prepay_id
+ * 2. 用户希望存储prepay_id用于后续复用
+ * 3. 支付失败后，使用存储的prepay_id重新生成支付签名信息
+ *
+ * 使用示例：
+ * // 步骤1：创建订单并获取prepay_id
+ * WxPayUnifiedOrderV3Result result = wxPayService.unifiedPartnerOrderV3(TradeTypeEnum.JSAPI, request);
+ * String prepayId = result.getPrepayId();
+ * // 存储prepayId到数据库...
+ *
+ * // 步骤2：需要支付时，使用存储的prepay_id生成支付信息
+ * WxPayUnifiedOrderV3Result.JsapiResult payInfo = WxPayUnifiedOrderV3Result.getJsapiPayInfo(
+ * prepayId, appId, wxPayService.getConfig().getPrivateKey()
+ * );
+ *
+ *
+ * @param prepayId 预支付交易会话标识
+ * @param appId 应用ID
+ * @param privateKey 商户私钥，用于签名
+ * @return JSAPI支付所需的参数对象
+ */
+ public static JsapiResult getJsapiPayInfo(String prepayId, String appId, PrivateKey privateKey) {
+ String timestamp = String.valueOf(System.currentTimeMillis() / 1000);
+ String nonceStr = SignUtils.genRandomStr();
+ JsapiResult jsapiResult = new JsapiResult();
+ jsapiResult.setAppId(appId).setTimeStamp(timestamp)
+ .setPackageValue("prepay_id=" + prepayId).setNonceStr(nonceStr)
+ .setPrepayId(prepayId)
+ //签名类型，默认为RSA，仅支持RSA。
+ .setSignType("RSA").setPaySign(SignUtils.sign(jsapiResult.getSignStr(), privateKey));
+ return jsapiResult;
+ }
+
+ /**
+ *
+ * 根据已有的prepay_id生成APP支付所需的参数对象（解耦版本）
+ * 应用场景：
+ * 1. 用户已经通过createPartnerOrderV3或unifiedPartnerOrderV3获取了prepay_id
+ * 2. 用户希望存储prepay_id用于后续复用
+ * 3. 支付失败后，使用存储的prepay_id重新生成支付签名信息
+ *
+ * 使用示例：
+ * // 步骤1：创建订单并获取prepay_id
+ * WxPayUnifiedOrderV3Result result = wxPayService.unifiedPartnerOrderV3(TradeTypeEnum.APP, request);
+ * String prepayId = result.getPrepayId();
+ * // 存储prepayId到数据库...
+ *
+ * // 步骤2：需要支付时，使用存储的prepay_id生成支付信息
+ * WxPayUnifiedOrderV3Result.AppResult payInfo = WxPayUnifiedOrderV3Result.getAppPayInfo(
+ * prepayId, appId, mchId, wxPayService.getConfig().getPrivateKey()
+ * );
+ *
+ *
+ * @param prepayId 预支付交易会话标识
+ * @param appId 应用ID
+ * @param mchId 商户号
+ * @param privateKey 商户私钥，用于签名
+ * @return APP支付所需的参数对象
+ */
+ public static AppResult getAppPayInfo(String prepayId, String appId, String mchId, PrivateKey privateKey) {
+ String timestamp = String.valueOf(System.currentTimeMillis() / 1000);
+ String nonceStr = SignUtils.genRandomStr();
+ AppResult appResult = new AppResult();
+ appResult.setAppid(appId).setPrepayId(prepayId).setPartnerId(mchId)
+ .setNoncestr(nonceStr).setTimestamp(timestamp)
+ //暂填写固定值Sign=WXPay
+ .setPackageValue("Sign=WXPay")
+ .setSign(SignUtils.sign(appResult.getSignStr(), privateKey));
+ return appResult;
+ }
}
From 28e0c16e943bcbbd6c093728ae2ca486299243ac Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 5 Dec 2025 08:25:52 +0000
Subject: [PATCH 3/3] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E6=96=87=E6=A1=A3?=
=?UTF-8?q?=E6=B3=A8=E9=87=8A=E9=94=99=E8=AF=AF=E5=B9=B6=E6=B7=BB=E5=8A=A0?=
=?UTF-8?q?=E6=B5=8B=E8=AF=95=E7=94=A8=E4=BE=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Co-authored-by: binarywang <1343140+binarywang@users.noreply.github.com>
---
.../result/WxPayUnifiedOrderV3Result.java | 2 +-
.../result/WxPayUnifiedOrderV3ResultTest.java | 201 ++++++++++++++++++
2 files changed, 202 insertions(+), 1 deletion(-)
create mode 100644 weixin-java-pay/src/test/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3ResultTest.java
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3Result.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3Result.java
index dc929a2cdb..47445ff376 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3Result.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3Result.java
@@ -58,7 +58,7 @@ public class WxPayUnifiedOrderV3Result implements Serializable {
/**
*
* 字段名：二维码链接（NATIVE支付 会返回）
- * 变量名：h5_url
+ * 变量名：code_url
* 是否必填：是
* 类型：string[1,512]
* 描述：
diff --git a/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3ResultTest.java b/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3ResultTest.java
new file mode 100644
index 0000000000..afcca2924c
--- /dev/null
+++ b/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3ResultTest.java
@@ -0,0 +1,201 @@
+package com.github.binarywang.wxpay.bean.result;
+
+import com.github.binarywang.wxpay.bean.result.enums.TradeTypeEnum;
+import com.github.binarywang.wxpay.v3.util.SignUtils;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.PrivateKey;
+
+/**
+ *
+ * WxPayUnifiedOrderV3Result 测试类
+ * 主要测试prepayId字段和静态工厂方法的解耦功能
+ *
+ *
+ * @author copilot
+ */
+public class WxPayUnifiedOrderV3ResultTest {
+
+ /**
+ * 生成测试用的RSA密钥对
+ */
+ private KeyPair generateKeyPair() throws Exception {
+ KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
+ keyPairGenerator.initialize(2048);
+ return keyPairGenerator.generateKeyPair();
+ }
+
+ /**
+ * 测试JsapiResult中的prepayId字段是否正确设置
+ */
+ @Test
+ public void testJsapiResultWithPrepayId() throws Exception {
+ // 准备测试数据
+ String testPrepayId = "wx201410272009395522657a690389285100";
+ String testAppId = "wx8888888888888888";
+ KeyPair keyPair = generateKeyPair();
+ PrivateKey privateKey = keyPair.getPrivate();
+
+ // 创建WxPayUnifiedOrderV3Result对象
+ WxPayUnifiedOrderV3Result result = new WxPayUnifiedOrderV3Result();
+ result.setPrepayId(testPrepayId);
+
+ // 调用getPayInfo生成JsapiResult
+ WxPayUnifiedOrderV3Result.JsapiResult jsapiResult =
+ result.getPayInfo(TradeTypeEnum.JSAPI, testAppId, null, privateKey);
+
+ // 验证prepayId字段是否正确设置
+ Assert.assertNotNull(jsapiResult.getPrepayId(), "prepayId不应为null");
+ Assert.assertEquals(jsapiResult.getPrepayId(), testPrepayId, "prepayId应该与设置的值相同");
+
+ // 验证其他字段
+ Assert.assertEquals(jsapiResult.getAppId(), testAppId);
+ Assert.assertNotNull(jsapiResult.getTimeStamp());
+ Assert.assertNotNull(jsapiResult.getNonceStr());
+ Assert.assertEquals(jsapiResult.getPackageValue(), "prepay_id=" + testPrepayId);
+ Assert.assertEquals(jsapiResult.getSignType(), "RSA");
+ Assert.assertNotNull(jsapiResult.getPaySign());
+ }
+
+ /**
+ * 测试使用静态工厂方法生成JsapiResult（解耦场景）
+ */
+ @Test
+ public void testGetJsapiPayInfoStaticMethod() throws Exception {
+ // 准备测试数据
+ String testPrepayId = "wx201410272009395522657a690389285100";
+ String testAppId = "wx8888888888888888";
+ KeyPair keyPair = generateKeyPair();
+ PrivateKey privateKey = keyPair.getPrivate();
+
+ // 使用静态工厂方法生成JsapiResult
+ WxPayUnifiedOrderV3Result.JsapiResult jsapiResult =
+ WxPayUnifiedOrderV3Result.getJsapiPayInfo(testPrepayId, testAppId, privateKey);
+
+ // 验证prepayId字段
+ Assert.assertNotNull(jsapiResult.getPrepayId(), "prepayId不应为null");
+ Assert.assertEquals(jsapiResult.getPrepayId(), testPrepayId, "prepayId应该与输入的值相同");
+
+ // 验证其他字段
+ Assert.assertEquals(jsapiResult.getAppId(), testAppId);
+ Assert.assertNotNull(jsapiResult.getTimeStamp());
+ Assert.assertNotNull(jsapiResult.getNonceStr());
+ Assert.assertEquals(jsapiResult.getPackageValue(), "prepay_id=" + testPrepayId);
+ Assert.assertEquals(jsapiResult.getSignType(), "RSA");
+ Assert.assertNotNull(jsapiResult.getPaySign());
+ }
+
+ /**
+ * 测试使用静态工厂方法生成AppResult（解耦场景）
+ */
+ @Test
+ public void testGetAppPayInfoStaticMethod() throws Exception {
+ // 准备测试数据
+ String testPrepayId = "wx201410272009395522657a690389285100";
+ String testAppId = "wx8888888888888888";
+ String testMchId = "1900000109";
+ KeyPair keyPair = generateKeyPair();
+ PrivateKey privateKey = keyPair.getPrivate();
+
+ // 使用静态工厂方法生成AppResult
+ WxPayUnifiedOrderV3Result.AppResult appResult =
+ WxPayUnifiedOrderV3Result.getAppPayInfo(testPrepayId, testAppId, testMchId, privateKey);
+
+ // 验证prepayId字段
+ Assert.assertNotNull(appResult.getPrepayId(), "prepayId不应为null");
+ Assert.assertEquals(appResult.getPrepayId(), testPrepayId, "prepayId应该与输入的值相同");
+
+ // 验证其他字段
+ Assert.assertEquals(appResult.getAppid(), testAppId);
+ Assert.assertEquals(appResult.getPartnerId(), testMchId);
+ Assert.assertNotNull(appResult.getTimestamp());
+ Assert.assertNotNull(appResult.getNoncestr());
+ Assert.assertEquals(appResult.getPackageValue(), "Sign=WXPay");
+ Assert.assertNotNull(appResult.getSign());
+ }
+
+ /**
+ * 测试解耦场景：先获取prepayId，后续再生成支付信息
+ */
+ @Test
+ public void testDecoupledScenario() throws Exception {
+ // 模拟场景：先创建订单获取prepayId
+ String testPrepayId = "wx201410272009395522657a690389285100";
+ String testAppId = "wx8888888888888888";
+ KeyPair keyPair = generateKeyPair();
+ PrivateKey privateKey = keyPair.getPrivate();
+
+ // 步骤1：模拟从创建订单接口获取prepayId
+ WxPayUnifiedOrderV3Result orderResult = new WxPayUnifiedOrderV3Result();
+ orderResult.setPrepayId(testPrepayId);
+
+ // 获取prepayId用于存储
+ String storedPrepayId = orderResult.getPrepayId();
+ Assert.assertEquals(storedPrepayId, testPrepayId);
+
+ // 步骤2：后续支付失败时，使用存储的prepayId重新生成支付信息
+ WxPayUnifiedOrderV3Result.JsapiResult newPayInfo =
+ WxPayUnifiedOrderV3Result.getJsapiPayInfo(storedPrepayId, testAppId, privateKey);
+
+ // 验证重新生成的支付信息
+ Assert.assertEquals(newPayInfo.getPrepayId(), storedPrepayId);
+ Assert.assertEquals(newPayInfo.getPackageValue(), "prepay_id=" + storedPrepayId);
+ Assert.assertNotNull(newPayInfo.getPaySign());
+ }
+
+ /**
+ * 测试多次生成支付信息，签名应该不同（因为timestamp和nonceStr每次都不同）
+ */
+ @Test
+ public void testMultipleGenerationsHaveDifferentSignatures() throws Exception {
+ String testPrepayId = "wx201410272009395522657a690389285100";
+ String testAppId = "wx8888888888888888";
+ KeyPair keyPair = generateKeyPair();
+ PrivateKey privateKey = keyPair.getPrivate();
+
+ // 生成第一次支付信息
+ WxPayUnifiedOrderV3Result.JsapiResult result1 =
+ WxPayUnifiedOrderV3Result.getJsapiPayInfo(testPrepayId, testAppId, privateKey);
+
+ // 等待一秒确保timestamp不同
+ Thread.sleep(1000);
+
+ // 生成第二次支付信息
+ WxPayUnifiedOrderV3Result.JsapiResult result2 =
+ WxPayUnifiedOrderV3Result.getJsapiPayInfo(testPrepayId, testAppId, privateKey);
+
+ // prepayId应该相同
+ Assert.assertEquals(result1.getPrepayId(), result2.getPrepayId());
+
+ // 但是timestamp、nonceStr和签名应该不同
+ Assert.assertNotEquals(result1.getTimeStamp(), result2.getTimeStamp(), "timestamp应该不同");
+ Assert.assertNotEquals(result1.getNonceStr(), result2.getNonceStr(), "nonceStr应该不同");
+ Assert.assertNotEquals(result1.getPaySign(), result2.getPaySign(), "签名应该不同");
+ }
+
+ /**
+ * 测试AppResult中的prepayId字段
+ */
+ @Test
+ public void testAppResultWithPrepayId() throws Exception {
+ String testPrepayId = "wx201410272009395522657a690389285100";
+ String testAppId = "wx8888888888888888";
+ String testMchId = "1900000109";
+ KeyPair keyPair = generateKeyPair();
+ PrivateKey privateKey = keyPair.getPrivate();
+
+ WxPayUnifiedOrderV3Result result = new WxPayUnifiedOrderV3Result();
+ result.setPrepayId(testPrepayId);
+
+ // 调用getPayInfo生成AppResult
+ WxPayUnifiedOrderV3Result.AppResult appResult =
+ result.getPayInfo(TradeTypeEnum.APP, testAppId, testMchId, privateKey);
+
+ // 验证prepayId字段
+ Assert.assertNotNull(appResult.getPrepayId(), "prepayId不应为null");
+ Assert.assertEquals(appResult.getPrepayId(), testPrepayId, "prepayId应该与设置的值相同");
+ }
+}