diff --git a/src/main/java/cn/chjyj/szwh/mapper/GoodsDetailMapper.java b/src/main/java/cn/chjyj/szwh/mapper/GoodsDetailMapper.java
index 926209a..a0ee41e 100644
--- a/src/main/java/cn/chjyj/szwh/mapper/GoodsDetailMapper.java
+++ b/src/main/java/cn/chjyj/szwh/mapper/GoodsDetailMapper.java
@@ -1,5 +1,6 @@
 package cn.chjyj.szwh.mapper;
 
+import cn.chjyj.szwh.bean.GoodsDetail;
 import org.springframework.stereotype.Component;
 
 /**
@@ -7,4 +8,10 @@ import org.springframework.stereotype.Component;
  */
 @Component
 public interface GoodsDetailMapper {
+    /**
+     * 商品详情
+     * @param goodDetailId
+     * @return
+     */
+    GoodsDetail getGoodsDetailBygid(Integer goodDetailId);
 }
diff --git a/src/main/resources/mapper/szwh/GoodsDetailMapper.xml b/src/main/resources/mapper/szwh/GoodsDetailMapper.xml
index 295d050..0bdeff3 100644
--- a/src/main/resources/mapper/szwh/GoodsDetailMapper.xml
+++ b/src/main/resources/mapper/szwh/GoodsDetailMapper.xml
@@ -25,11 +25,11 @@
         )SELECT * FROM mm ORDER BY id DESC;
     </select>
 
-    <!--根据uid查询用户-->
-    <select id="getUserByUid" parameterType="java.lang.Integer" resultType="cn.chjyj.szwh.bean.Goods">
+    <!--根据id查询-->
+    <select id="getGoodsDetailBygid" parameterType="java.lang.Integer" resultType="cn.chjyj.szwh.bean.GoodsDetail">
         select <include refid="column"/>
         from <include refid="tbName"/>
-        where uid=#{uid}
+        where id=#{goodDetailId}
     </select>
 
     <!--查询用户名,加上密码-->
diff --git a/src/test/java/cn/chjyj/szwh/mapper/GoodsDetailMapperTest.java b/src/test/java/cn/chjyj/szwh/mapper/GoodsDetailMapperTest.java
new file mode 100644
index 0000000..a24c0c6
--- /dev/null
+++ b/src/test/java/cn/chjyj/szwh/mapper/GoodsDetailMapperTest.java
@@ -0,0 +1,24 @@
+package cn.chjyj.szwh.mapper;
+
+import cn.chjyj.szwh.bean.GoodsDetail;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.junit.Assert.*;
+
+@SpringBootTest
+@RunWith(SpringRunner.class)
+public class GoodsDetailMapperTest {
+    @Autowired
+    private GoodsDetailMapper goodsDetailMapper;
+
+    @Test
+    public void getGoodsDetailBygid() {
+        int gdid=1;
+        GoodsDetail goodsDetail = goodsDetailMapper.getGoodsDetailBygid(gdid);
+        System.out.println(goodsDetail.getGoodsName());
+    }
+}
\ No newline at end of file