Refactor date handling in Req15RateDistributionView: replace single date input with start and end date inputs, update data fetching logic accordingly.

src/views/data-connection/Req15RateDistributionView.vue

@@ -31,7 +31,8 @@ interface DataConnectionItem {
 
 const mapContainer = ref<HTMLDivElement | null>(null)
 const operator = ref<string>('CMCC') // 默认选择中国移动
-const date = ref<string>('')
+const startDate = ref<string>('')
+const endDate = ref<string>('')
 const loading = ref<boolean>(false)
 const dataLoaded = ref<boolean>(false)
 const dataList = ref<DataConnectionItem[]>([])
@@ -151,9 +152,10 @@ const fetchData = async () => {
   }
   
   try {
-    const body: { operator?: string; date?: string } = {}
+    const body: { operator?: string; startDate?: string; endDate?: string } = {}
     if (operator.value) body.operator = operator.value
-    if (date.value) body.date = date.value
+    if (startDate.value) body.startDate = startDate.value
+    if (endDate.value) body.endDate = endDate.value
 
     const response = await fetch('http://localhost:8081/dataConnection', {
       method: 'POST',
@@ -229,7 +231,7 @@ const initMapAfterData = async () => {
 }
 
 // 监听筛选条件变化
-watch([operator, date], () => {
+watch([operator, startDate, endDate], () => {
   if (map && dataLoaded.value) fetchData()
 })
 
@@ -262,14 +264,31 @@ onUnmounted(() => {
       <div class="filter-item">
         <label for="operator">运营商:</label>
         <select id="operator" v-model="operator" class="select-input" :disabled="loading">
+          <option value="">ALL</option>
           <option value="CMCC">中国移动</option>
           <option value="CUCC">中国联通</option>
           <option value="CTCC">中国电信</option>
         </select>
       </div>
       <div class="filter-item">
-        <label for="date">日期:</label>
-        <input id="date" type="date" v-model="date" class="date-input" :disabled="loading" />
+        <label for="startDate">起始日期:</label>
+        <input
+          id="startDate"
+          type="date"
+          v-model="startDate"
+          class="date-input"
+          :disabled="loading"
+        />
+      </div>
+      <div class="filter-item">
+        <label for="endDate">结束日期:</label>
+        <input
+          id="endDate"
+          type="date"
+          v-model="endDate"
+          class="date-input"
+          :disabled="loading"
+        />
       </div>
       <button @click="fetchData" class="refresh-btn" :disabled="loading">
         {{ loading ? '加载中...' : '刷新' }}