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🎨 【小程序】修复 getUserEncryptKey 签名计算问题

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Binary Wang
2026-06-23 11:18:21 +08:00
parent 1697535fae
commit 3be78afe33
2 changed files with 36 additions and 2 deletions
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3
weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/api/impl/WxMaInternetServiceImpl.java
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@@ -9,7 +9,6 @@ import lombok.RequiredArgsConstructor;
import me.chanjar.weixin.common.enums.WxType;
import me.chanjar.weixin.common.error.WxError;
import me.chanjar.weixin.common.error.WxErrorException;
import org.apache.commons.codec.binary.Base64;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
@@ -27,7 +26,7 @@ public class WxMaInternetServiceImpl implements WxMaInternetService {
private String sha256(String data, String sessionKey) throws Exception {
Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
SecretKeySpec secret_key = new SecretKeySpec(Base64.decodeBase64(sessionKey), "HmacSHA256");
SecretKeySpec secret_key = new SecretKeySpec(sessionKey.getBytes(StandardCharsets.UTF_8), "HmacSHA256");
sha256_HMAC.init(secret_key);
byte[] array = sha256_HMAC.doFinal(data.getBytes(StandardCharsets.UTF_8));
StringBuilder sb = new StringBuilder();

35
weixin-java-miniapp/src/test/java/cn/binarywang/wx/miniapp/api/impl/WxMaInternetServiceImplSignatureTest.java Normal file
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@@ -0,0 +1,35 @@
package cn.binarywang.wx.miniapp.api.impl;
import cn.binarywang.wx.miniapp.api.WxMaService;
import org.mockito.ArgumentCaptor;
import org.testng.annotations.Test;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
/**
* 服务端网络相关接口签名测试.
*/
public class WxMaInternetServiceImplSignatureTest {
@Test
public void testGetUserEncryptKeySignatureUsesRawSessionKey() throws Exception {
WxMaService wxMaService = mock(WxMaService.class);
when(wxMaService.post(anyString(), eq(""))).thenReturn("{\"errcode\":0,\"errmsg\":\"ok\"}");
String openid = "ogu-84hVFTbTt-myGisQESoDJ6BM";
String sessionKey = "9ny8n3t0KULoi0deF7T9pw==";
WxMaInternetServiceImpl service = new WxMaInternetServiceImpl(wxMaService);
service.getUserEncryptKey(openid, sessionKey);
ArgumentCaptor<String> urlCaptor = ArgumentCaptor.forClass(String.class);
verify(wxMaService).post(urlCaptor.capture(), eq(""));
assertThat(urlCaptor.getValue())
.contains("openid=" + openid)
.contains("signature=A6782009C273FDF75CAD421C9D3EAF6CA8715C1B15CB1E130EF40FE7901A9772");
}
}