[add]增加统计总金额接口

jeecg-boot-module-system/src/main/java/org/jeecg/modules/demo/erp/controller/OrderController.java

@@ -1,17 +1,18 @@
 package org.jeecg.modules.demo.erp.controller;
 
 import java.io.IOException;
+import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-import com.baomidou.mybatisplus.core.metadata.OrderItem;
 import com.baomidou.mybatisplus.core.toolkit.IdWorker;
 import org.jeecg.modules.demo.erp.entity.StoreInfo;
 import org.jeecg.modules.demo.erp.entity.ext.OrderDetailExt;
@@ -127,6 +128,23 @@ public class OrderController {
 		return Result.OK(pageExt);
 	}
 
+	 @ApiOperation(value="统计总金额", notes="统计总金额")
+	 @GetMapping(value = "/getTotalAmount")
+	 public Result<String> getTotalAmount(Order order,HttpServletRequest req){
+		 AtomicReference<BigDecimal> totalAmount = new AtomicReference<>(
+		 		new BigDecimal(BigDecimal.ZERO.toString())
+		 );
+		 List<Order> orderList = orderService.list(
+		 		QueryGenerator.initQueryWrapper(
+		 				order, req.getParameterMap()
+				)
+		 );
+		 orderList.forEach(e ->{
+			 totalAmount.set(totalAmount.get().add(e.getTotalAmount()));
+		 });
+		 return Result.OK(totalAmount.toString());
+	 }
+
 	 @ApiOperation(value="订单状态统计", notes="订单状态统计")
 	 @GetMapping(value = "/queryState")
 	 public Result<OrderStateVo> queryState(@RequestParam(name="userId",required=true) String userId){