diff --git a/src/main/java/com/whdc/controller/VersionsController.java b/src/main/java/com/whdc/controller/VersionsController.java
index 3c8bfde..6f9dd48 100644
--- a/src/main/java/com/whdc/controller/VersionsController.java
+++ b/src/main/java/com/whdc/controller/VersionsController.java
@@ -27,8 +27,7 @@ public class VersionsController {
     private IVersionsService service;
 
 
-
-//    @ApiOperation(value = "查询所有")
+    //    @ApiOperation(value = "查询所有")
 //    @PostMapping(value = "find")
     public ResultJson<Versions> find(@RequestBody Versions dto) {
 
@@ -44,6 +43,16 @@ public class VersionsController {
 
     }
 
+    @ApiOperation(value = "通过版本号查询")
+    @GetMapping(value = "getByV/{abId}/{version}")
+    public ResultJson<Versions> getByV(@PathVariable("abId") Integer abId, @PathVariable("version") Integer version) {
+        if (version < 0) {
+            return ResultJson.error("版本号不能小于0");
+        }
+        return ResultJson.ok(service.lambdaQuery().eq(Versions::getAbId, abId)
+                .eq(Versions::getVersion, version).one());
+
+    }
 
 
     @ApiOperation(value = "删除")
diff --git a/src/main/java/com/whdc/model/dto/CommDto.java b/src/main/java/com/whdc/model/dto/CommDto.java
index 1da00de..cd8eb7b 100644
--- a/src/main/java/com/whdc/model/dto/CommDto.java
+++ b/src/main/java/com/whdc/model/dto/CommDto.java
@@ -24,4 +24,7 @@ public class CommDto extends FindPageDto  {
     @ApiModelProperty(value = "0:添加用户,1:修改用户,2:修改权限,3:删除用户")
     private String type;
 
+    @ApiModelProperty(value = "版本号")
+    private Integer version;
+
 }
diff --git a/src/main/resources/mapper/VersionsMapper.xml b/src/main/resources/mapper/VersionsMapper.xml
index 77c6f01..ed34f9b 100644
--- a/src/main/resources/mapper/VersionsMapper.xml
+++ b/src/main/resources/mapper/VersionsMapper.xml
@@ -20,7 +20,12 @@
             <if test="dto.type != null and dto.type != '' ">
                 AND A.TYPE = #{dto.type}
             </if>
+            <if test="dto.version != null and dto.version != '' ">
+                AND A.TYPE = #{dto.version}
+            </if>
         </where>
+
+        ORDER BY V.VERSION DESC
     </select>