新增加Dify相关接口WeChatMentalAlertController用于接收信息调用企业微信发送消息给铺导员，新增加对有心理问题学生的数据库表存储student_mental_rating，新增加对student_mental_rating表的所有查询和学号精准查询

srs-system/src/main/resources/mapper/system/StudentMentalRatingMapper.xml

@@ -0,0 +1,46 @@
+<?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.srs.system.mapper.StudentMentalRatingMapper">
+<!--  添加  知无涯-->
+    <select id="selectByStudentId" resultType="com.srs.system.domain.StudentMentalRating">
+        SELECT id, student_id, rating, created_time, updated_time
+        FROM student_mental_rating
+        WHERE student_id = #{studentId}
+    </select>
+
+    <insert id="insert" parameterType="com.srs.system.domain.StudentMentalRating"
+            useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO student_mental_rating(student_id, rating)
+        VALUES (#{studentId}, #{rating})
+    </insert>
+
+    <update id="updateRatingByStudentId" parameterType="com.srs.system.domain.StudentMentalRating">
+        UPDATE student_mental_rating
+        SET rating = #{rating}
+        WHERE student_id = #{studentId}
+    </update>
+
+    <!-- 心理查询全部：知无涯 -->
+    <select id="selectAll" resultType="com.srs.system.domain.StudentMentalRating">
+        SELECT id,
+               student_id AS studentId,
+               rating,
+               created_time AS createdTime,
+               updated_time AS updatedTime
+        FROM student_mental_rating
+        ORDER BY created_time DESC
+    </select>
+
+    <!-- 根据学号查询心理：知无涯 -->
+    <select id="selectByStuNo" resultType="com.srs.system.domain.StudentMentalRating">
+        SELECT id,
+               student_id AS studentId,
+               rating,
+               created_time AS createdTime,
+               updated_time AS updatedTime
+        FROM student_mental_rating
+        WHERE student_id = #{stuNo}
+        ORDER BY created_time DESC
+    </select>
+</mapper>