diff --git a/yanzhu-bigscreen/src/main/java/com/yanzhu/jh/bigscreen/web/controller/ProjectMaterialSealController.java b/yanzhu-bigscreen/src/main/java/com/yanzhu/jh/bigscreen/web/controller/ProjectMaterialSealController.java
new file mode 100644
index 00000000..68df755d
--- /dev/null
+++ b/yanzhu-bigscreen/src/main/java/com/yanzhu/jh/bigscreen/web/controller/ProjectMaterialSealController.java
@@ -0,0 +1,39 @@
+package com.yanzhu.jh.bigscreen.web.controller;
+
+import com.ruoyi.common.constant.Constants;
+import com.ruoyi.common.core.domain.AjaxResult;
+import com.ruoyi.common.core.redis.RedisCache;
+import com.yanzhu.jh.project.domain.SurProjectMaterialSeal;
+import com.yanzhu.jh.project.service.ISurProjectMaterialSealService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+@RestController
+@RequestMapping("/bgscreen/materialSeal")
+public class ProjectMaterialSealController {
+
+    @Autowired
+    ISurProjectMaterialSealService materialSealService;
+
+    @Autowired
+    private RedisCache redisCache;
+
+
+    @PostMapping("/selectTop20")
+    public AjaxResult selectTop20(@RequestBody SurProjectMaterialSeal where){
+        String key="bgscreen_selectTop20_selectTop20_"+where.getDeptId()+"-"+where.getProjectId();
+        Object obj=redisCache.getCacheObject(key);
+        if(obj!=null){
+            return AjaxResult.success(obj);
+        }
+        List<SurProjectMaterialSeal> list=materialSealService.selectTop20(where);
+        redisCache.setCacheObject(key, list, Constants.BIGSCREEN_QUERY_CACHE, TimeUnit.MINUTES);
+        return AjaxResult.success(list);
+    }
+}
diff --git a/yanzhu-jh/src/main/java/com/yanzhu/jh/project/mapper/SurProjectMaterialSealMapper.java b/yanzhu-jh/src/main/java/com/yanzhu/jh/project/mapper/SurProjectMaterialSealMapper.java
index 58271093..38071d2a 100644
--- a/yanzhu-jh/src/main/java/com/yanzhu/jh/project/mapper/SurProjectMaterialSealMapper.java
+++ b/yanzhu-jh/src/main/java/com/yanzhu/jh/project/mapper/SurProjectMaterialSealMapper.java
@@ -58,4 +58,6 @@ public interface SurProjectMaterialSealMapper
      * @return 结果
      */
     public int deleteSurProjectMaterialSealByIds(Long[] ids);
+
+    public List<SurProjectMaterialSeal> selectTop20(SurProjectMaterialSeal where);
 }
diff --git a/yanzhu-jh/src/main/java/com/yanzhu/jh/project/service/ISurProjectMaterialSealService.java b/yanzhu-jh/src/main/java/com/yanzhu/jh/project/service/ISurProjectMaterialSealService.java
index e2ad7a33..19ef0beb 100644
--- a/yanzhu-jh/src/main/java/com/yanzhu/jh/project/service/ISurProjectMaterialSealService.java
+++ b/yanzhu-jh/src/main/java/com/yanzhu/jh/project/service/ISurProjectMaterialSealService.java
@@ -58,4 +58,6 @@ public interface ISurProjectMaterialSealService
      * @return 结果
      */
     public int deleteSurProjectMaterialSealById(Long id);
+
+   public List<SurProjectMaterialSeal> selectTop20(SurProjectMaterialSeal where);
 }
diff --git a/yanzhu-jh/src/main/java/com/yanzhu/jh/project/service/impl/SurProjectMaterialSealServiceImpl.java b/yanzhu-jh/src/main/java/com/yanzhu/jh/project/service/impl/SurProjectMaterialSealServiceImpl.java
index 63cb0102..c804ac62 100644
--- a/yanzhu-jh/src/main/java/com/yanzhu/jh/project/service/impl/SurProjectMaterialSealServiceImpl.java
+++ b/yanzhu-jh/src/main/java/com/yanzhu/jh/project/service/impl/SurProjectMaterialSealServiceImpl.java
@@ -100,4 +100,9 @@ public class SurProjectMaterialSealServiceImpl implements ISurProjectMaterialSea
     {
         return surProjectMaterialSealMapper.deleteSurProjectMaterialSealById(id);
     }
+
+    @Override
+    public List<SurProjectMaterialSeal> selectTop20(SurProjectMaterialSeal where) {
+        return surProjectMaterialSealMapper.selectTop20(where);
+    }
 }
diff --git a/yanzhu-jh/src/main/resources/mapper/project/SurProjectMaterialSealMapper.xml b/yanzhu-jh/src/main/resources/mapper/project/SurProjectMaterialSealMapper.xml
index 95491d4d..f68db178 100644
--- a/yanzhu-jh/src/main/resources/mapper/project/SurProjectMaterialSealMapper.xml
+++ b/yanzhu-jh/src/main/resources/mapper/project/SurProjectMaterialSealMapper.xml
@@ -142,4 +142,17 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             #{id}
         </foreach>
     </delete>
+    <select id="selectTop20" parameterType="SurProjectMaterialSeal" resultMap="SurProjectMaterialSealResult">
+    select spme.id, spme.project_id, spme.dept_id, spme.main_image, spme.image_urls, spme.material_name, spme.use_position, spme.contract_brand, spme.use_brand, spme.seal_date, spme.sign_files, spme.alteration_files, spme.is_del, spme.create_by, spme.create_time, spme.update_by, spme.update_time, spme.remark, sp.projectName, sd.dept_name
+    from (
+        select * from sur_project_material_seal spme
+        where if(spme.is_del is null,0,spme.is_del)=0
+            <if test="deptId!=null and deptId>0"> and spme.project_id in (SELECT id FROM sur_project WHERE deptid=#{deptId}) </if>
+            <if test="projectId!=null and projectId>0">and spme.project_id  = #{projectId}</if>
+        ) spme
+    left join sur_project sp on spme.project_id = sp.id
+    left join sys_dept sd on sd.dept_id = spme.dept_id
+    order by spme.create_time desc
+    LIMIT	0,20
+    </select>
 </mapper>
\ No newline at end of file