diff --git a/src/main/java/cn/chjyj/szwh/bean/Cert.java b/src/main/java/cn/chjyj/szwh/bean/Cert.java
new file mode 100644
index 0000000..497dcf7
--- /dev/null
+++ b/src/main/java/cn/chjyj/szwh/bean/Cert.java
@@ -0,0 +1,89 @@
+package cn.chjyj.szwh.bean;
+
+import java.io.Serializable;
+
+/**
+ *  证书实体
+ *  xy
+ */
+public class Cert implements Serializable {
+    /**
+     *  cert
+     *  id,public_key as publicKey,private_key as privateKey,token,`status`,`type`
+     */
+    private Integer id;
+    /**
+     * 公钥地址
+     */
+    private String publicKey;
+
+    /**
+     * 私钥地址
+     */
+    private String privateKey;
+
+    /**
+     * 系统标识
+     */
+    private String token;
+
+    /**
+     * 状态；0：启用；1：禁用
+     */
+    private Integer status;
+
+    /**
+     * 类型
+     */
+    private String type;
+
+    private static final long serialVersionUID = 1L;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getPublicKey() {
+        return publicKey;
+    }
+
+    public void setPublicKey(String publicKey) {
+        this.publicKey = publicKey;
+    }
+
+    public String getPrivateKey() {
+        return privateKey;
+    }
+
+    public void setPrivateKey(String privateKey) {
+        this.privateKey = privateKey;
+    }
+
+    public String getToken() {
+        return token;
+    }
+
+    public void setToken(String token) {
+        this.token = token;
+    }
+
+    public Integer getStatus() {
+        return status;
+    }
+
+    public void setStatus(Integer status) {
+        this.status = status;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/cn/chjyj/szwh/mapper/CertMapper.java b/src/main/java/cn/chjyj/szwh/mapper/CertMapper.java
new file mode 100644
index 0000000..ea6633e
--- /dev/null
+++ b/src/main/java/cn/chjyj/szwh/mapper/CertMapper.java
@@ -0,0 +1,24 @@
+package cn.chjyj.szwh.mapper;
+
+import cn.chjyj.szwh.bean.Cert;
+import org.springframework.stereotype.Component;
+
+/**
+ * 证书mapper
+ */
+@Component
+public interface CertMapper {
+    /**
+     * 根据编号查询
+     * @param id
+     * @return
+     */
+    Cert getCertByid(Integer id);
+
+    /**
+     * 根据类型查询
+     * @param stype
+     * @return
+     */
+    Cert getCertByType(String stype);
+}
diff --git a/src/main/resources/mapper/szwh/CertMapper.xml b/src/main/resources/mapper/szwh/CertMapper.xml
new file mode 100644
index 0000000..e9f5ad1
--- /dev/null
+++ b/src/main/resources/mapper/szwh/CertMapper.xml
@@ -0,0 +1,97 @@
+<?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="cn.chjyj.szwh.mapper.CertMapper">
+
+    <sql id="column">
+      id,public_key as publicKey,private_key as privateKey,token,`status`,`type`
+    </sql>
+    <sql id="tbName">cert</sql>
+
+    <!--查询记录列表-->
+    <select id="getGoodsList" parameterType="java.lang.Integer" resultType="cn.chjyj.szwh.bean.Cert">
+        WITH mm as (select * from
+        <include refid="tbName"/>
+        where id>#{startRs} limit #{pageSize}
+        )SELECT * FROM mm ORDER BY id DESC;
+    </select>
+
+    <!--根据id查询-->
+    <select id="getCertByid" parameterType="java.lang.Integer" resultType="cn.chjyj.szwh.bean.Cert">
+        select <include refid="column"/>
+        from <include refid="tbName"/>
+        where id=#{id}
+    </select>
+
+    <!-- 安装类型查询 -->
+    <select id="getCertByType" parameterType="java.lang.String" resultType="cn.chjyj.szwh.bean.Cert">
+        select <include refid="column"/>
+        from <include refid="tbName"/>
+        where `type`=#{stype} limit 1;
+    </select>
+
+    <!--查询用户-->
+    <select id="getSingleUserByOpenid" parameterType="java.lang.String" resultType="cn.chjyj.szwh.bean.Goods">
+        select <include refid="column"/> from
+        <include refid="tbName"/>
+        where openid=#{openid};
+    </select>
+
+    <!--新增用户-->
+    <insert id="addUser" parameterType="cn.chjyj.szwh.bean.Goods" useGeneratedKeys="true" keyColumn="id">
+        insert into <include refid="tbName"/>
+        (uname,password,gender,urealname,ubirth,nickname,avatarurl,platfrom,sessionkey,openid)
+        values (
+        #{uname},
+        #{password},
+        #{gender},
+        #{urealname},
+        #{ubirth},
+        #{nickname},
+        #{avatarurl},
+        #{platfrom},
+        #{sessionkey},
+        #{openid}
+        )
+    </insert>
+
+    <update id="upUser" parameterType="cn.chjyj.szwh.bean.Goods">
+        update <include refid="tbName"/>
+        set
+
+        <if test="password!=null">
+            password=#{password},
+        </if>
+        <if test="urealname!=null">
+            urealname=#{urealname},
+        </if>
+        <if test="ubirth!=null">
+            ubirth =#{ubirth},
+        </if>
+        <if test="gender!=null">
+            gender=#{gender},
+        </if>
+        <if test="nickName!=null">
+            nickname=#{nickName},
+        </if>
+        <if test="avatarurl!=null">
+            avatarurl=#{avatarurl},
+        </if>
+        <if test="nickname!=null">
+            nickname=#{nickname},
+        </if>
+        <if test="platfrom!=null">
+            platfrom=#{platfrom},
+        </if>
+        <if test="sessionkey!=null">
+            sessionkey=#{sessionkey},
+        </if>
+        <if test="openid!=null">
+            openid=#{openid},
+        </if>
+        uname=#{uname}
+        where uid=#{uid};
+    </update>
+
+</mapper>
\ No newline at end of file