diff --git a/lzbi-framework/src/main/java/com/lzbi/framework/config/SecurityConfig.java b/lzbi-framework/src/main/java/com/lzbi/framework/config/SecurityConfig.java
index 8085e97..e1e8e57 100644
--- a/lzbi-framework/src/main/java/com/lzbi/framework/config/SecurityConfig.java
+++ b/lzbi-framework/src/main/java/com/lzbi/framework/config/SecurityConfig.java
@@ -116,6 +116,7 @@ public class SecurityConfig extends WebSecurityConfigurerAdapter
                 .antMatchers(HttpMethod.GET, "/", "/*.html", "/**/*.html", "/**/*.css", "/**/*.js", "/profile/**").permitAll()
                 .antMatchers( "/swagger-resources/**", "/webjars/**", "/*/api-docs", "/druid/**").permitAll()
                 .antMatchers("/wechat/biz/login/**").permitAll()
+                .antMatchers("/external/**").permitAll()
                 // 除上面外的所有请求全部需要鉴权认证
                 .anyRequest().authenticated()
                 .and()
diff --git a/lzbi-module/src/main/java/com/lzbi/draft/mapper/DcBusiParamDraftDayMapper.java b/lzbi-module/src/main/java/com/lzbi/draft/mapper/DcBusiParamDraftDayMapper.java
index 1bc3aa8..6692f15 100644
--- a/lzbi-module/src/main/java/com/lzbi/draft/mapper/DcBusiParamDraftDayMapper.java
+++ b/lzbi-module/src/main/java/com/lzbi/draft/mapper/DcBusiParamDraftDayMapper.java
@@ -4,6 +4,7 @@ import java.util.List;
 import com.lzbi.draft.domain.DcBusiParamDraftDay;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.lzbi.draft.domain.ParamDraftQueryVo;
+import org.apache.ibatis.annotations.Param;
 
 /**
  * 参数数据底稿（日）Mapper接口
@@ -23,6 +24,23 @@ public interface DcBusiParamDraftDayMapper extends BaseMapper<DcBusiParamDraftDa
     public DcBusiParamDraftDay selectDcBusiParamDraftDayById(String id);
     public DcBusiParamDraftDay selectOneByParam(DcBusiParamDraftDay queryVo);
 
+    /**
+     * 查询最后一天的参数底稿
+     * @param assetCode
+     * @param paramsModelCode
+     * @return
+     */
+    DcBusiParamDraftDay selectLastDataByAssetCodeAndParamsModelCode(@Param("assetCode") String assetCode,
+                                                                    @Param("paramsModelCode") String paramsModelCode);
+
+    /**
+     * 查询最后一天的参数底稿
+     * @param assetCodeList
+     * @param paramsModelCode
+     * @return
+     */
+    List<DcBusiParamDraftDay> selectLastDataByAssetCodeListAndParamsModelCode(@Param("assetCodeList") List<String> assetCodeList,
+                                                    @Param("paramsModelCode") String paramsModelCode);
     /**
      * 查询参数数据底稿（日）列表
      * 
diff --git a/lzbi-module/src/main/java/com/lzbi/external/controller/ParamsController.java b/lzbi-module/src/main/java/com/lzbi/external/controller/ParamsController.java
new file mode 100644
index 0000000..869114d
--- /dev/null
+++ b/lzbi-module/src/main/java/com/lzbi/external/controller/ParamsController.java
@@ -0,0 +1,34 @@
+package com.lzbi.external.controller;
+
+import com.lzbi.common.core.domain.AjaxResult;
+import com.lzbi.external.service.ParamsService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RequestMapping("/external/params")
+@RestController
+public class ParamsController {
+
+    @Autowired
+    private ParamsService paramsService;
+
+    /**
+     * 获取供热面积
+     * @return
+     */
+    @GetMapping("/heat-supply-area/singleAsset")
+    public AjaxResult getHeatSupplyArea(@RequestParam(value = "assetCode") String assetCode) {
+        return AjaxResult.success(paramsService.getHeatSupplyArea(assetCode));
+    }
+
+    /**
+     * 获取供气面积
+     * @return
+     */
+    @PostMapping("/heat-supply-area/multipleAsset")
+    public AjaxResult getGasSupplyArea(@RequestBody List<String> assetCodeList) {
+        return AjaxResult.success(paramsService.getGasSupplyArea(assetCodeList));
+    }
+}
diff --git a/lzbi-module/src/main/java/com/lzbi/external/service/ParamsService.java b/lzbi-module/src/main/java/com/lzbi/external/service/ParamsService.java
new file mode 100644
index 0000000..59b5b4a
--- /dev/null
+++ b/lzbi-module/src/main/java/com/lzbi/external/service/ParamsService.java
@@ -0,0 +1,37 @@
+package com.lzbi.external.service;
+
+import com.lzbi.common.constant.ParamsModelCodeConstants;
+import com.lzbi.draft.domain.DcBusiParamDraftDay;
+import com.lzbi.draft.mapper.DcBusiParamDraftDayMapper;
+import org.apache.commons.collections4.CollectionUtils;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+@Service
+public class ParamsService {
+
+    @Resource
+    private DcBusiParamDraftDayMapper dcBusiParamDraftDayMapper;
+
+    public Double getHeatSupplyArea(String assetCode) {
+        DcBusiParamDraftDay dcBusiParamDraftDay = dcBusiParamDraftDayMapper.selectLastDataByAssetCodeAndParamsModelCode(assetCode, ParamsModelCodeConstants.供暖面积);
+        return dcBusiParamDraftDay.getValLast();
+    }
+
+    public Map<String, Double> getGasSupplyArea(List<String> assetCodeList) {
+        if (CollectionUtils.isEmpty(assetCodeList)) {
+            throw new RuntimeException("资产编码列表不能为空");
+        }
+        List<DcBusiParamDraftDay> list = dcBusiParamDraftDayMapper.selectLastDataByAssetCodeListAndParamsModelCode(assetCodeList, ParamsModelCodeConstants.供暖面积);
+        if (CollectionUtils.isEmpty(list)) {
+            throw new RuntimeException("暂无数据");
+        }
+        Map<String, Double> map = list.stream().collect(Collectors.toMap(DcBusiParamDraftDay::getAssetCode, DcBusiParamDraftDay::getValLast));
+        return map;
+    }
+}
diff --git a/lzbi-module/src/main/java/com/lzbi/task/TaskParamDfratProcess.java b/lzbi-module/src/main/java/com/lzbi/task/TaskParamDfratProcess.java
index eef1b29..a4579a9 100644
--- a/lzbi-module/src/main/java/com/lzbi/task/TaskParamDfratProcess.java
+++ b/lzbi-module/src/main/java/com/lzbi/task/TaskParamDfratProcess.java
@@ -78,7 +78,7 @@ public class TaskParamDfratProcess {
 
     public void doBills() {
         DcBusiParamBillMaster dcBusiParamBillMasterDao = new DcBusiParamBillMaster();
-        dcBusiParamBillMasterDao.setCheckStatus("1");
+        dcBusiParamBillMasterDao.setCheckStatus("0");
         List<DcBusiParamBillMaster> dcBusiParamBillMasterDaos = dcBusiParamBillMasterService.selectDcBusiParamBillMasterDaoList(dcBusiParamBillMasterDao);
         dcBusiParamBillMasterDaos.forEach(item -> {
             doBill(item);
diff --git a/lzbi-module/src/main/resources/mapper/asset/DcBusiParamDraftDayMapper.xml b/lzbi-module/src/main/resources/mapper/asset/DcBusiParamDraftDayMapper.xml
index 3ca9201..31b568a 100644
--- a/lzbi-module/src/main/resources/mapper/asset/DcBusiParamDraftDayMapper.xml
+++ b/lzbi-module/src/main/resources/mapper/asset/DcBusiParamDraftDayMapper.xml
@@ -98,6 +98,45 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         </where>
     </select>
 
+    <select id="selectLastDataByAssetCodeAndParamsModelCode" parameterType="String" resultMap="DcBusiParamDraftDayResult">
+        SELECT
+            t1.*
+        FROM
+            `dc_busi_param_draft_day` t1
+                INNER JOIN dc_base_asset_target t2 ON t1.param_code = t2.target_code
+        WHERE
+            t2.target_model_code = #{paramsModelCode}
+          AND t2.asset_code = #{assetCode}
+          AND t2.column_type = "P"
+        ORDER BY
+            t1.count_date DESC
+            LIMIT 1
+    </select>
+
+    <select id="selectLastDataByAssetCodeListAndParamsModelCode" resultMap="DcBusiParamDraftDayResult">
+        SELECT
+            t.*
+        FROM
+            dc_busi_param_draft_day t
+        INNER JOIN (
+            SELECT
+                max( t1.id ) AS id
+            FROM
+                dc_busi_param_draft_day t1
+            INNER JOIN dc_base_asset_target t2 ON t1.param_code = t2.target_code
+            WHERE
+                t2.target_model_code = #{paramsModelCode}
+                AND t2.asset_code IN
+                <foreach collection="assetCodeList" item="assetCode" open="(" separator="," close=")">
+                    #{assetCode}
+                </foreach>
+                AND t2.column_type = "P"
+            GROUP BY
+            t1.asset_code
+        ) tt1
+        ON t.id = tt1.id
+    </select>
+
     <insert id="insertDcBusiParamDraftDay" parameterType="DcBusiParamDraftDay" useGeneratedKeys="true" keyProperty="id">
         insert into dc_busi_param_draft_day
         <trim prefix="(" suffix=")" suffixOverrides=",">