提交util代码

common/src/main/java/com/hzya/frame/beanutil/BeanUtil.java

@@ -1,5 +1,12 @@
 package com.hzya.frame.beanutil;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.lang.reflect.Field;
+import java.util.HashMap;
+import java.util.Map;
+
 /**
  * @Content
  * @Author 👻👻👻👻👻👻👻👻👻👻 gjh
@@ -8,7 +15,100 @@ package com.hzya.frame.beanutil;
  */
 public class BeanUtil {
 
+    static Logger logger = LoggerFactory.getLogger(BeanUtil.class);
+
     public static String getBean() {
         return "232";
     }
+
+    /**
+     * 忽略大小写的bean copy方法
+     *
+     * @author liuyang
+     */
+    public static <T> T copyProperties(Object source, Object target) {
+        Map<String, Field> sourceMap = CacheFieldMap.getFieldMap(source.getClass());
+        CacheFieldMap.getFieldMap(target.getClass()).values().forEach((it) -> {
+            logger.info(it.getName());
+            Field field = sourceMap.get(it.getName().toLowerCase().replace("_", ""));
+            if (field != null) {
+                it.setAccessible(true);
+                field.setAccessible(true);
+                try {
+                    //忽略null
+                    if (field.get(source) != null) {
+                        if ("java.lang.Long".equals(it.getType().getName())) {
+                            it.set(target, Long.valueOf(field.get(source) + ""));
+                        } else {
+                            it.set(target, field.get(source));
+                        }
+                    }
+                } catch (IllegalAccessException e) {
+                    e.printStackTrace();
+                }
+            }
+        });
+        return (T) target;
+    }
+
+    /**
+     * 忽略大小写的 bean copy 方法，可获取父类字段
+     *
+     * @author liuyang
+     */
+    public static <T> T copyPropertiesV2(Object source, Object target) {
+        // 获取 target 及其父类的所有字段映射
+        Map<String, Field> targetFieldMap = new HashMap<>();
+        Class<?> currentClass = target.getClass();
+        while (currentClass != null) {
+            Map<String, Field> currentClassMap = CacheFieldMap.getFieldMap(currentClass);
+            currentClassMap.forEach((key, value) -> targetFieldMap.put(key, value));
+            currentClass = currentClass.getSuperclass();
+        }
+
+        Map<String, Field> sourceMap = CacheFieldMap.getFieldMap(source.getClass());
+
+        targetFieldMap.values().forEach((it) -> {
+            logger.info(it.getName());
+            Field field = sourceMap.get(it.getName().toLowerCase().replace("_", ""));
+            if (field != null) {
+                it.setAccessible(true);
+                field.setAccessible(true);
+                try {
+                    // 忽略 null
+                    if (field.get(source) != null) {
+                        if ("java.lang.Long".equals(it.getType().getName())) {
+                            it.set(target, Long.valueOf(field.get(source) + ""));
+                        } else {
+                            it.set(target, field.get(source));
+                        }
+                    }
+                } catch (IllegalAccessException e) {
+                    e.printStackTrace();
+                }
+            }
+        });
+        return (T) target;
+    }
+
+    private static class CacheFieldMap {
+        private static Map<String, Map<String, Field>> cacheMap = new HashMap<>();
+
+        private static Map<String, Field> getFieldMap(Class clazz) {
+            Map<String, Field> result = cacheMap.get(clazz.getName());
+            if (result == null) {
+                synchronized (CacheFieldMap.class) {
+                    if (result == null) {
+                        Map<String, Field> fieldMap = new HashMap<>();
+                        for (Field field : clazz.getDeclaredFields()) {
+                            fieldMap.put(field.getName().toLowerCase().replace("_", ""), field);
+                        }
+                        cacheMap.put(clazz.getName(), fieldMap);
+                        result = cacheMap.get(clazz.getName());
+                    }
+                }
+            }
+            return result;
+        }
+    }
 }

common/src/main/java/com/hzya/frame/split/SplitListByCountUtil.java

@@ -0,0 +1,38 @@
+package com.hzya.frame.split;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @Author：liuyang
+ * @Package：com.hzya.frame.split
+ * @Project：kangarooDataCenterV3
+ * @name：SplitListByCountUtil
+ * @Date：2024/8/2 14:20
+ * @Filename：SplitListByCountUtil
+ */
+public class SplitListByCountUtil {
+    /**
+     * List集合拆分
+     *
+     * @param list  原始数据   6000
+     * @param count 每个list的元素数量 1000
+     * @return 拆分得到的list集合
+     */
+    public static <T> List<List<T>> splitListByCount(List<T> list, int count) {
+        List<List<T>> listAll = new ArrayList<>();
+        int size = list.size();
+        if (size > count) { //*size:6000  > count: 1000
+            int absInt = Math.abs(size / count); //6
+            if (size - absInt * count > 0) {
+                listAll.add(list.subList(absInt * count, size));
+            }
+            for (int i = 1; i < absInt + 1; i++) {
+                listAll.add(list.subList((i - 1) * count, i * count));
+            }
+        } else {
+            listAll.add(list);
+        }
+        return listAll;
+    }
+}