diff --git a/src/main/java/com/shxy/i2/dao/Data_YxDao.java b/src/main/java/com/shxy/i2/dao/Data_YxDao.java
new file mode 100644
index 0000000..20c2873
--- /dev/null
+++ b/src/main/java/com/shxy/i2/dao/Data_YxDao.java
@@ -0,0 +1,17 @@
+package com.shxy.i2.dao;
+
+import com.shxy.i2.dto.Data_YxlDto;
+import com.shxy.i2.entity.Data_Yx;
+import org.apache.ibatis.annotations.Param;
+
+import java.math.BigInteger;
+import java.util.List;
+
+public interface Data_YxDao {
+
+
+    List<Data_YxlDto> selectByPrimaryKey(@Param("maxid") BigInteger maxid);
+
+
+    int updateByPrimaryKey(Data_Yx record);
+}
\ No newline at end of file
diff --git a/src/main/java/com/shxy/i2/dao/Upload_checkDao.java b/src/main/java/com/shxy/i2/dao/Upload_checkDao.java
new file mode 100644
index 0000000..b5f7aed
--- /dev/null
+++ b/src/main/java/com/shxy/i2/dao/Upload_checkDao.java
@@ -0,0 +1,17 @@
+package com.shxy.i2.dao;
+
+import com.shxy.i2.entity.Upload_check;
+
+public interface Upload_checkDao {
+    int deleteByPrimaryKey(String checkType);
+
+    int insert(Upload_check record);
+
+    int insertSelective(Upload_check record);
+
+    Upload_check selectByPrimaryKey(String checkType);
+
+    int updateByPrimaryKeySelective(Upload_check record);
+
+    int updateByPrimaryKey(Upload_check record);
+}
\ No newline at end of file
diff --git a/src/main/java/com/shxy/i2/entity/Data_Yx.java b/src/main/java/com/shxy/i2/entity/Data_Yx.java
new file mode 100644
index 0000000..4459f63
--- /dev/null
+++ b/src/main/java/com/shxy/i2/entity/Data_Yx.java
@@ -0,0 +1,20 @@
+package com.shxy.i2.entity;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.Date;
+
+@Data
+public class Data_Yx implements Serializable {
+    private Long id;
+
+    private Integer sadr;
+
+    private Date dTime;
+
+    private Integer ival;
+
+    private static final long serialVersionUID = 1L;
+
+}
\ No newline at end of file
diff --git a/src/main/java/com/shxy/i2/entity/Upload_check.java b/src/main/java/com/shxy/i2/entity/Upload_check.java
new file mode 100644
index 0000000..e55d339
--- /dev/null
+++ b/src/main/java/com/shxy/i2/entity/Upload_check.java
@@ -0,0 +1,19 @@
+package com.shxy.i2.entity;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigInteger;
+import java.util.Date;
+
+@Data
+public class Upload_check implements Serializable {
+    private String checkType;
+
+    private BigInteger value;
+
+    private Date updateTime;
+
+    private static final long serialVersionUID = 1L;
+
+}
\ No newline at end of file
diff --git a/src/main/resources/mappers/Data_YxDao.xml b/src/main/resources/mappers/Data_YxDao.xml
new file mode 100644
index 0000000..3c26150
--- /dev/null
+++ b/src/main/resources/mappers/Data_YxDao.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.shxy.i2.dao.Data_YxDao">
+    <resultMap id="BaseResultMap" type="com.shxy.i2.dto.Data_YxlDto">
+        <result column="sadr" jdbcType="INTEGER" property="sadr"/>
+        <result column="d_time" jdbcType="TIMESTAMP" property="dTime"/>
+        <result column="ival" jdbcType="INTEGER" property="ival"/>
+        <result column="field" jdbcType="VARCHAR" property="field"/>
+        <result column="sensor_code" jdbcType="VARCHAR" property="sensorCode"/>
+        <result column="equipment_id" jdbcType="VARCHAR" property="equipmentId"/>
+        <result column="table_name" jdbcType="VARCHAR" property="tableName"/>
+    </resultMap>
+    <sql id="Base_Column_List">
+    sadr, d_time, ival,field,sensor_code,equipment_id,table_name,phase
+  </sql>
+    <select id="selectByPrimaryKey" resultMap="BaseResultMap">
+        select
+        a.sadr as sadr,
+        a.d_time as d_time,
+        a.ival as ival,
+        b.field as field,
+        c.sensor_code as sensor_code,
+        c.equipment_id as equipment_id,
+        c.table_name as table_name,
+        c.phase as phase
+        from data_yx a left join niec_points b on a.sadr = b.sadr left join niec_sensors c on b.sensor_id = c.id
+        where id <![CDATA[>]]> #{maxid}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/src/main/resources/mappers/Upload_checkDao.xml b/src/main/resources/mappers/Upload_checkDao.xml
new file mode 100644
index 0000000..eab90ff
--- /dev/null
+++ b/src/main/resources/mappers/Upload_checkDao.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.shxy.i2.dao.Upload_checkDao">
+    <resultMap id="BaseResultMap" type="com.shxy.i2.entity.Upload_check">
+        <id column="check_type" jdbcType="VARCHAR" property="checkType"/>
+        <result column="value" jdbcType="BIGINT" property="value"/>
+        <result column="update_time" jdbcType="TIMESTAMP" property="updateTime"/>
+    </resultMap>
+    <sql id="Base_Column_List">
+    check_type, value, update_time
+  </sql>
+    <select id="selectByPrimaryKey" parameterType="java.lang.String" resultMap="BaseResultMap">
+        select
+        <include refid="Base_Column_List"/>
+        from upload_check
+        where check_type = #{checkType,jdbcType=VARCHAR}
+    </select>
+    <update id="updateByPrimaryKey" >
+    update upload_check
+    set value = #{value,jdbcType=BIGINT},
+      update_time = #{updateTime,jdbcType=TIMESTAMP}
+    where check_type = #{checkType,jdbcType=VARCHAR}
+  </update>
+</mapper>
\ No newline at end of file