你能帮我根据下面这个表结构生成一个完整的mybatis代码嘛

当然可以，以下是一个示例：

<resultMap id="userMap" type="User">
  <id property="id" column="id" />
  <result property="username" column="username" />
  <result property="password" column="password" />
  <result property="email" column="email" />
</resultMap>

<select id="getUserById" resultMap="userMap">
  SELECT * FROM users WHERE id = #{id}
</select>

<insert id="insertUser" parameterType="User">
  INSERT INTO users (username, password, email)
  VALUES (#{username}, #{password}, #{email})
</insert>

<update id="updateUser" parameterType="User">
  UPDATE users SET
  username = #{username},
  password = #{password},
  email = #{email}
  WHERE id = #{id}
</update>

<delete id="deleteUser" parameterType="int">
  DELETE FROM users WHERE id = #{id}
</delete>

当然，这只是一个示例，你需要根据你的表结构进行相应的修改。