增加了值的写入方法

yzg-util-base/src/main/java/com/yanzuoguang/util/base/ObjectHelper.java

@@ -396,21 +396,29 @@ public class ObjectHelper {
     /**
      * 对象转换（一般将map转为javabean）
      *
-     * @param to   转换后的对象
-     * @param from 要转换的对象
+     * @param to         转换后的对象
+     * @param from       要转换的对象
      * @return 转换后的值 to
      */
     public static Object writeWithToClass(Object to, Object from) {
-        if (to == null) {
-            return null;
+        return writeWithToClass(false, to, from);
+    }
+
+
+    /**
+     * 对象转换（一般将map转为javabean）
+     *
+     * @param emptyWrite 为空时是否写入
+     * @param to         转换后的对象
+     * @param from       要转换的对象
+     * @return 转换后的值 to
+     */
+    public static Object writeWithToClass(boolean emptyWrite, Object to, Object from) {
+        if (from == null || to == null) {
+            return to;
         }
         HashMap<String, MethodField> mapField = getInitTypeField(to.getClass());
-        for (Map.Entry<String, MethodField> field : mapField.entrySet()) {
-            String name = field.getValue().name;
-            Object fromValue = ObjectHelper.get(from, name);
-            ObjectHelper.set(to, name, fromValue);
-        }
-        return to;
+        return writeWithClass(emptyWrite, to, from, mapField);
     }
 
     /**
@@ -420,33 +428,91 @@ public class ObjectHelper {
      * @param froms 来源对象
      */
     public static void writeWithFrom(Object to, Object... froms) {
-        for (Object model : froms) {
-            if (model instanceof Map) {
-                Map map = (Map) model;
-                for (Object key : map.keySet()) {
-                    ObjectHelper.set(to, StringHelper.toString(key), map.get(key));
-                }
+        for (Object from : froms) {
+            if (from instanceof Map) {
+                writeWithFromMap(to, (Map) from);
             } else {
-                ObjectHelper.writeWithFromClass(to, model);
+                ObjectHelper.writeWithFromClass(to, from);
             }
         }
     }
 
     /**
-     * 根据来源类型的字段，将数据写入目标类型的数据
+     * 将值吸入到到目标数据
+     *
+     * @param to   目标类型的数据
+     * @param from 来源类型的数据
+     * @return 写入之后的值
+     */
+    public static Object writeWithFromMap(Object to, Map from) {
+        return writeWithFromMap(false, to, from);
+    }
+
+    /**
+     * 将值吸入到到目标数据
+     *
+     * @param emptyWrite 为空时是否写入
+     * @param to         目标类型的数据
+     * @param from       来源类型的数据
+     * @return 写入之后的值
+     */
+    public static Object writeWithFromMap(boolean emptyWrite, Object to, Map from) {
+        for (Object key : from.keySet()) {
+            Object fromValue = from.get(key);
+            if (StringHelper.isEmpty(fromValue)) {
+                continue;
+            }
+            ObjectHelper.set(to, StringHelper.toString(key), fromValue);
+        }
+        return to;
+    }
+
+    /**
+     * 根据来源类型的字段，将数据写入目标类型的数据,为空时不写入
      *
      * @param to   目标类型的数据
      * @param from 来源类型的数据
      * @return 写入之后的值
      */
     public static Object writeWithFromClass(Object to, Object from) {
-        if (from == null) {
+        return writeWithFromClass(false, to, from);
+    }
+
+    /**
+     * 根据来源类型的字段，将数据写入目标类型的数据
+     *
+     * @param emptyWrite 为空时是否写入
+     * @param to         目标类型的数据
+     * @param from       来源类型的数据
+     * @return 写入之后的值
+     */
+    public static Object writeWithFromClass(boolean emptyWrite, Object to, Object from) {
+        if (from == null || to == null) {
             return to;
         }
         HashMap<String, MethodField> mapField = getInitTypeField(from.getClass());
+        return writeWithClass(emptyWrite, to, from, mapField);
+    }
+
+    /**
+     * 根据字段类型写入值
+     *
+     * @param emptyWrite 为空时是否写入
+     * @param to         目标类型的数据
+     * @param from       来源类型的数据
+     * @param mapField   需要写入的字段
+     * @return 写入之后的值
+     */
+    private static Object writeWithClass(boolean emptyWrite, Object to, Object from, HashMap<String, MethodField> mapField) {
+        if (from == null || to == null) {
+            return to;
+        }
         for (Map.Entry<String, MethodField> field : mapField.entrySet()) {
             String name = field.getValue().name;
             Object fromValue = ObjectHelper.get(from, name);
+            if (StringHelper.isEmpty(fromValue)) {
+                continue;
+            }
             ObjectHelper.set(to, name, fromValue);
         }
         return to;