算法调整提交

data-processing/data-processing-boot/src/main/java/com/njcn/dataProcess/controller/DataVController.java

@@ -26,6 +26,7 @@ import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
 import java.time.LocalDateTime;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -162,4 +163,75 @@ public class DataVController extends BaseController {
         return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, dataV, methodDescribe);
     }
 
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @GetMapping("/memoryTest")
+    @ApiOperation("n内存测试")
+    public HttpResult<List<DataVDto>> memoryTest(@RequestParam("sum")Integer sum,@RequestParam("flag")Integer flag) {
+        String methodDescribe = getMethodDescribe("memoryTest");
+
+        Runtime runtime = Runtime.getRuntime();
+        // 获取 JVM 最大可用内存（以字节为单位）
+        long maxMemory = runtime.maxMemory();
+        // 获取 JVM 当前已分配的内存（以字节为单位）
+        long totalMemory = runtime.totalMemory();
+        // 获取 JVM 当前空闲内存（以字节为单位）
+        long freeMemory = runtime.freeMemory();
+        // 计算已使用的内存
+        long usedMemory = totalMemory - freeMemory;
+
+        System.out.println("最大可用内存: " + maxMemory / (1024 * 1024) + " MB");
+        System.out.println("当前已分配的内存: " + totalMemory / (1024 * 1024) + " MB");
+        System.out.println("当前空闲内存: " + freeMemory / (1024 * 1024) + " MB");
+        System.out.println("已使用的内存: " + usedMemory / (1024 * 1024) + " MB");
+        System.out.println("第一次分析结束-----------------------------------------");
+
+        if(flag == 1) {
+            try {
+                if (sum <= 0) {
+                    System.out.println("传入的参数必须是正整数。");
+                    return null;
+                }
+                // 计算总字节数
+                long totalSize = (long) sum * 1024 * 1024 * 1024;
+                // 每个小块数组的大小，这里设为 1GB
+                int chunkSize = 1024 * 1024 * 1024;
+                List<byte[]> arrays = new ArrayList<>();
+
+                long remainingSize = totalSize;
+                while (remainingSize > 0) {
+                    int currentSize = (int) Math.min(remainingSize, chunkSize);
+                    byte[] chunk = new byte[currentSize];
+                    arrays.add(chunk);
+                    remainingSize -= currentSize;
+                }
+
+                System.out.printf("成功生成 %dGB 的 byte 数组（分块存储）。%n", sum);
+            } catch (NumberFormatException e) {
+                System.out.println("传入的参数必须是有效的整数。");
+            } catch (OutOfMemoryError e) {
+                System.out.println("内存不足，无法生成指定大小的数组。请确保系统有足够的可用内存，或者调整 JVM 堆内存大小。");
+                e.printStackTrace();
+            }
+
+        }
+
+
+        // 获取 JVM 最大可用内存（以字节为单位）
+        maxMemory = runtime.maxMemory();
+        // 获取 JVM 当前已分配的内存（以字节为单位）
+        totalMemory = runtime.totalMemory();
+        // 获取 JVM 当前空闲内存（以字节为单位）
+        freeMemory = runtime.freeMemory();
+        // 计算已使用的内存
+        usedMemory = totalMemory - freeMemory;
+
+        System.out.println("最大可用内存: " + maxMemory / (1024 * 1024) + " MB");
+        System.out.println("当前已分配的内存: " + totalMemory / (1024 * 1024) + " MB");
+        System.out.println("当前空闲内存: " + freeMemory / (1024 * 1024) + " MB");
+        System.out.println("已使用的内存: " + usedMemory / (1024 * 1024) + " MB");
+        System.out.println("第二次分析结束-----------------------------------------");
+
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, null, methodDescribe);
+    }
+
 }