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code/link56/link56-backend/src/main/resources/cn/link56/im/mapper/ImFriendMapper.xml

@@ -0,0 +1,42 @@
+<?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.link56.im.mapper.ImFriendMapper">
+
+    <select id="selectFriend" resultType="cn.link56.im.model.vo.QueryFriendVO">
+        SELECT *
+        FROM (
+            SELECT
+                f.b_id AS id,
+                f.b_friend_id AS friendId,
+                u.b_name AS friendName,
+                u.b_avatar AS friendAvatar,
+                f.b_unread_count AS unreadCount,
+                m.b_id AS lastMessageId,
+                m.b_send_time AS lastMessageTime,
+                m.b_type AS lastMessageType,
+                m.b_content AS lastMessageContent,
+                ROW_NUMBER() OVER (
+                    ORDER BY
+                    <if test="id != null and id != 0">
+                        CASE WHEN f.b_id = #{id} THEN 0 ELSE 1 END,
+                    </if>
+                    m.b_send_time DESC
+                ) AS rn
+            FROM b_im_friend f
+            LEFT JOIN b_company_user u ON f.b_friend_id = u.b_id
+            LEFT JOIN b_im_private_message m ON f.b_last_message_id = m.b_id
+            WHERE f.b_user_id = #{userId}
+            ) AS t
+        WHERE t.rn BETWEEN #{offset} AND #{limit}
+    </select>
+
+    <select id="selectFriendTotal" resultType="java.lang.Long">
+        SELECT COUNT(*)
+        FROM b_im_friend f
+        WHERE f.b_user_id = #{userId}
+    </select>
+
+</mapper>

code/link56/link56-backend/src/main/resources/cn/link56/im/mapper/ImGroupMapper.xml

@@ -0,0 +1,43 @@
+<?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.link56.im.mapper.ImGroupMapper">
+
+    <select id="selectGroup" resultType="cn.link56.im.model.vo.QueryGroupVO">
+        SELECT *
+        FROM (
+        SELECT
+            g.b_id AS id,
+            g.b_name AS name,
+            g.b_avatar AS avatar,
+            gu.b_unread_count AS unreadCount,
+            m.b_id AS lastMessageId,
+            m.b_send_time AS lastMessageTime,
+            m.b_type AS lastMessageType,
+            m.b_content AS lastMessageContent,
+        ROW_NUMBER() OVER (
+        ORDER BY
+            <if test="id != null and id != 0">
+                CASE WHEN g.b_id = #{id} THEN 0 ELSE 1 END,
+            </if>
+            m.b_send_time DESC
+        ) AS rn
+            FROM b_im_group g
+            INNER JOIN b_im_group_user gu ON g.b_id = gu.b_group_id
+            LEFT JOIN b_im_group_message m ON gu.b_last_message_id = m.b_id
+            WHERE gu.b_user_id = #{userId}
+        ) AS t
+        WHERE t.rn BETWEEN #{offset} AND #{limit}
+    </select>
+
+    <select id="selectGroupTotal" resultType="java.lang.Long">
+        SELECT COUNT(DISTINCT g.b_id)
+        FROM b_im_group g
+                 INNER JOIN b_im_group_user gu ON g.b_id = gu.b_group_id
+        WHERE gu.b_user_id = #{userId}
+    </select>
+
+
+</mapper>