取消限制

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/angle_dtu.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/angle_dtu.iml" filepath="$PROJECT_DIR$/.idea/angle_dtu.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

http_server.go

@@ -4,12 +4,12 @@ import (
 	"encoding/json"
 	"fmt"
 	"html/template"
-	"time"
 	"log"
 	"net/http"
 	"os"
 	"path/filepath"
 	"strconv"
+	"time"
 )
 
 // 启动HTTP服务器
@@ -64,7 +64,8 @@ func handleGetData(w http.ResponseWriter, r *http.Request) {
 	startDateStr := r.URL.Query().Get("start_date")
 	endDateStr := r.URL.Query().Get("end_date")
 
-    limit := 500
+	limit := 500     // 默认限制为500条数据
+	noLimit := false // 是否不限制数据条数
 
 	var sensorID int
 	var err error
@@ -78,6 +79,10 @@ func handleGetData(w http.ResponseWriter, r *http.Request) {
 	}
 
 	if limitStr != "" {
+		if limitStr == "all" {
+			noLimit = true
+			limit = 1000000 // 使用一个非常大的数值作为实际上的"无限制"
+		} else {
 			limit, err = strconv.Atoi(limitStr)
 			if err != nil || limit <= 0 {
 				log.Printf("错误: 无效的记录数限制: %s", limitStr)
@@ -85,6 +90,7 @@ func handleGetData(w http.ResponseWriter, r *http.Request) {
 				return
 			}
 		}
+	}
 
 	var startDate, endDate time.Time
 	if startDateStr != "" {
@@ -118,13 +124,18 @@ func handleGetData(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-    log.Printf("成功获取到 %d 条数据记录", len(data))
+	if noLimit {
+		log.Printf("成功获取到所有数据记录（%d条）", len(data))
+	} else {
+		log.Printf("成功获取到 %d 条数据记录（限制：%d条）", len(data), limit)
+	}
 
 	if err := json.NewEncoder(w).Encode(data); err != nil {
 		log.Printf("错误: 编码JSON失败: %v", err)
 		http.Error(w, "编码JSON失败："+err.Error(), http.StatusInternalServerError)
 	}
 }
+
 // 处理获取所有传感器ID的API
 func handleGetSensors(w http.ResponseWriter, r *http.Request) {
 	log.Printf("接收到获取传感器列表请求")

templates/index.html

@@ -159,6 +159,7 @@
                     <option value="1000">1000</option>
                     <option value="2000">2000</option>
                     <option value="5000">5000</option>
+                    <option value="all">全部</option>
                 </select>
             </div>
             
@@ -328,7 +329,7 @@
         function resetFilters() {
             initializeDatePickers();
             document.getElementById('sensorSelect').value = 'all';
-            document.getElementById('limitSelect').value = '100';
+            document.getElementById('limitSelect').value = '500';
             loadData();
         }
 
@@ -394,7 +395,7 @@
                 params.push(`sensor_id=${sensorID}`);
             }
             
-            if (limit) {
+            if (limit && limit !== 'all') {
                 params.push(`limit=${limit}`);
             }