#29 [FEAT] : 전력량 데이터 반환 API 구현

server/src/main/java/org/cecd/server/controller/EnergyDataController.java

@@ -0,0 +1,25 @@
+package org.cecd.server.controller;
+
+import org.cecd.server.dto.EnergyUsageResponse;
+import org.cecd.server.service.EnergyDataService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/energy-usage")
+public class EnergyDataController {
+
+    private final EnergyDataService energyDataService;
+
+    public EnergyDataController(EnergyDataService energyDataService) {
+        this.energyDataService = energyDataService;
+    }
+
+    @GetMapping
+    public List<EnergyUsageResponse> getEnergyUsage() {
+        return energyDataService.getAllEnergyUsages();
+    }
+}

server/src/main/java/org/cecd/server/dto/EnergyUsageResponse.java

@@ -0,0 +1,18 @@
+package org.cecd.server.dto;
+
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+@Getter
+@Setter
+@AllArgsConstructor
+public class EnergyUsageResponse {
+    private String sensorNumber;
+    private LocalDateTime dateTime;
+    private double result;
+    private double percentage;
+}