fix:查重sql错误

src/main/resources/mapper/ComplaintCollectionMapper.xml

@@ -363,9 +363,11 @@
         FROM complaint_collection cc
         LEFT JOIN negative n ON n.id = cc.negative_id
         <where>
-            <choose>
+            <!-- 至少有一个参数非空时，生成括号包裹的 OR 条件 -->
-                <when test="(param.responderIdCode != null and param.responderIdCode != '') or (param.responderName != null and param.responderName != '') or (param.responderPhone != null and param.responderPhone != '')">
+            <if test="(param.responderIdCode != null and param.responderIdCode != '')
-                    1=1
+                  or (param.responderName != null and param.responderName != '')
+                  or (param.responderPhone != null and param.responderPhone != '')">
+                <trim prefix="(" suffix=")" prefixOverrides="OR">
                     <if test="param.responderIdCode != null and param.responderIdCode != ''">
                         OR cc.responder_id_code = #{param.responderIdCode}
                     </if>
@@ -375,11 +377,14 @@
                     <if test="param.responderPhone != null and param.responderPhone != ''">
                         OR n.contactPhone = #{param.responderPhone}
                     </if>
-                </when>
+                </trim>
-                <otherwise>
+            </if>
+            <!-- 三个参数全为空时，强制无结果 -->
+            <if test="(param.responderIdCode == null or param.responderIdCode == '')
+                  and (param.responderName == null or param.responderName == '')
+                  and (param.responderPhone == null or param.responderPhone == '')">
                 1=0
-                </otherwise>
+            </if>
-            </choose>
         </where>
         ORDER BY cc.create_time DESC
         LIMIT 100