diff --git a/src/main/java/com/yunhai/userhome/service/WidgetLinkResolver.java b/src/main/java/com/yunhai/userhome/service/WidgetLinkResolver.java
index 3b4f560..bbd2de0 100644
--- a/src/main/java/com/yunhai/userhome/service/WidgetLinkResolver.java
+++ b/src/main/java/com/yunhai/userhome/service/WidgetLinkResolver.java
@@ -4,7 +4,6 @@ import com.fasterxml.jackson.databind.JsonNode;
 import com.yunhai.platform.openapi.base.OpenApiAppClient;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.util.StringUtils;
 
@@ -39,8 +38,12 @@ public class WidgetLinkResolver {
     /** 注册表不可达之后的静默期 */
     private static final long PC_URL_DOWN_MS = 30_000L;
 
-    @Autowired
-    private OpenApiAppClient appClient;
+    /** 注册表应用域客户端（SDK 自动装配，见 yh-openapi-spring-boot-starter 的 OpenApiAutoConfiguration） */
+    private final OpenApiAppClient appClient;
+
+    public WidgetLinkResolver(OpenApiAppClient appClient) {
+        this.appClient = appClient;
+    }
 
     /** app_code → pc_url（空串 = 查无，避免脏 code 反复出站） */
     private final ConcurrentHashMap<String, String> pcUrlCache = new ConcurrentHashMap<>();
@@ -80,6 +83,14 @@ public class WidgetLinkResolver {
         if (!StringUtils.hasText(base)) {
             return null;
         }
+        // hash 路由只能拼在「基址」之后：目录形态必须补回斜杠（…/front/ + #/weekplan），
+        // 文件形态直接拼（…/front/index.html + #/list）。缺斜杠会被反代 301 到带斜杠路径，
+        // 且逐跳有丢 fragment 的风险（注册表两种形态并存：work-week-plan 是目录、notice 是 index.htm）。
+        int slash = base.lastIndexOf('/');
+        String lastSegment = slash >= 0 ? base.substring(slash + 1) : base;
+        if (lastSegment.indexOf('.') < 0) {
+            base = base + "/";
+        }
         return base + "#" + path;
     }
 
diff --git a/src/test/java/com/yunhai/userhome/service/WidgetLinkResolverTest.java b/src/test/java/com/yunhai/userhome/service/WidgetLinkResolverTest.java
new file mode 100644
index 0000000..f9a718f
--- /dev/null
+++ b/src/test/java/com/yunhai/userhome/service/WidgetLinkResolverTest.java
@@ -0,0 +1,132 @@
+package com.yunhai.userhome.service;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.yunhai.platform.openapi.base.OpenApiAppClient;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * 小组件外跳地址解析单测：冻结「注册表 pc_url → 绝对跳转地址」的拼接口径。
+ *
+ * <p>关键回归点（2026-10-15 生产实锤）：注册表两种 pc_url 形态并存——
+ * 目录形态（{@code …/work-week-plan/front/}）与文件形态（{@code …/notice/front/index.htm}）。
+ * 目录形态**必须保留斜杠**（{@code …/front/#/weekplan}），曾因「去尾斜杠」削成 {@code …/front#/weekplan}
+ * 被反代 301，且有丢 fragment 风险；文件形态直接拼 {@code #} 不能补斜杠。</p>
+ */
+class WidgetLinkResolverTest {
+
+    private static final ObjectMapper MAPPER = new ObjectMapper();
+
+    private OpenApiAppClient appClient;
+    private WidgetLinkResolver resolver;
+
+    @BeforeEach
+    void setUp() {
+        appClient = mock(OpenApiAppClient.class);
+        resolver = new WidgetLinkResolver(appClient);
+    }
+
+    private void stubPcUrl(String appCode, String pcUrl) throws Exception {
+        JsonNode node = pcUrl == null ? MAPPER.readTree("{}") : MAPPER.readTree("{\"pcUrl\":\"" + pcUrl + "\"}");
+        when(appClient.getAppByCode(eq(appCode))).thenReturn(node);
+    }
+
+    @Test
+    @DisplayName("目录形态 pc_url：尾斜杠保留，路由拼在斜杠之后")
+    void dirFormKeepsTrailingSlash() throws Exception {
+        stubPcUrl("work-week-plan", "http://base.yunhaixingtong.com/work-week-plan/front/");
+        assertEquals("http://base.yunhaixingtong.com/work-week-plan/front/#/weekplan",
+                resolver.resolve("work-week-plan", "/weekplan"));
+    }
+
+    @Test
+    @DisplayName("目录形态但注册表没写尾斜杠：按目录补回斜杠")
+    void dirFormWithoutSlashGetsSlash() throws Exception {
+        stubPcUrl("aca-classroom", "http://base.yunhaixingtong.com/aca-classroom/front");
+        assertEquals("http://base.yunhaixingtong.com/aca-classroom/front/#/home",
+                resolver.resolve("aca-classroom", "/home"));
+    }
+
+    @Test
+    @DisplayName("文件形态 pc_url（index.htm(l)）：直接拼 #，不补斜杠")
+    void fileFormKeepsFile() throws Exception {
+        stubPcUrl("notice", "http://base.yunhaixingtong.com/notice/front/index.htm");
+        stubPcUrl("coursehomework", "http://base.yunhaixingtong.com/coursehomework/front/index.html");
+        assertEquals("http://base.yunhaixingtong.com/notice/front/index.htm#/detail",
+                resolver.resolve("notice", "/detail"));
+        assertEquals("http://base.yunhaixingtong.com/coursehomework/front/index.html#/list",
+                resolver.resolve("coursehomework", "/list"));
+    }
+
+    @Test
+    @DisplayName("注册表 pc_url 自带 fragment：先丢再按配置路由拼")
+    void registryFragmentIsDropped() throws Exception {
+        stubPcUrl("flow-center", "http://base.yunhaixingtong.com/flow-center/front/index.html#/my");
+        assertEquals("http://base.yunhaixingtong.com/flow-center/front/index.html#/weekplan",
+                resolver.resolve("flow-center", "/weekplan"));
+    }
+
+    @Test
+    @DisplayName("路由容错：无前导斜杠 / 带 # 前缀都归一化")
+    void pathIsNormalized() throws Exception {
+        stubPcUrl("work-week-plan", "http://base.yunhaixingtong.com/work-week-plan/front/");
+        assertEquals("http://base.yunhaixingtong.com/work-week-plan/front/#/weekplan",
+                resolver.resolve("work-week-plan", "weekplan"));
+        assertEquals("http://base.yunhaixingtong.com/work-week-plan/front/#/weekplan",
+                resolver.resolve("work-week-plan", "#/weekplan"));
+    }
+
+    @Test
+    @DisplayName("降级：未配置 / 查无 pc_url / 路由写绝对 URL 一律 null（不猜、不渲染入口）")
+    void degradesToNull() throws Exception {
+        stubPcUrl("no-pcurl", null);
+        assertNull(resolver.resolve(null, "/x"));
+        assertNull(resolver.resolve("", "/x"));
+        assertNull(resolver.resolve("work-week-plan", null));
+        assertNull(resolver.resolve("work-week-plan", "   "));
+        assertNull(resolver.resolve("no-pcurl", "/x"));
+        assertNull(resolver.resolve("work-week-plan", "http://evil.example.com/x"));
+    }
+
+    @Test
+    @DisplayName("注册表不可达：返回 null 且不抛；同一 code 命中缓存只出站一次")
+    void registryDownAndCache() throws Exception {
+        when(appClient.getAppByCode(anyString())).thenThrow(new RuntimeException("boom"));
+        assertNull(resolver.resolve("work-week-plan", "/weekplan"));
+        assertNull(resolver.resolve("work-week-plan", "/weekplan"));
+        // 失败进短路窗口：窗口内不再出站
+        verify(appClient, times(1)).getAppByCode(eq("work-week-plan"));
+
+        OpenApiAppClient ok = mock(OpenApiAppClient.class);
+        stubPcUrlOk(ok);
+        WidgetLinkResolver cached = new WidgetLinkResolver(ok);
+        cached.resolve("work-week-plan", "/weekplan");
+        cached.resolve("work-week-plan", "/weekplan");
+        verify(ok, times(1)).getAppByCode(eq("work-week-plan"));
+    }
+
+    private void stubPcUrlOk(OpenApiAppClient client) throws Exception {
+        when(client.getAppByCode(eq("work-week-plan")))
+                .thenReturn(MAPPER.readTree("{\"pcUrl\":\"http://base.yunhaixingtong.com/work-week-plan/front/\"}"));
+    }
+
+    @Test
+    @DisplayName("查无 pc_url 也进缓存：脏 code 不重复出站")
+    void missIsCached() {
+        when(appClient.getAppByCode(eq("ghost"))).thenReturn(null);
+        assertNull(resolver.resolve("ghost", "/x"));
+        assertNull(resolver.resolve("ghost", "/x"));
+        verify(appClient, times(1)).getAppByCode(eq("ghost"));
+    }
+}