身份证识别

yzg-util-base/src/main/java/com/yanzuoguang/util/vo/MapRow.java

 package com.yanzuoguang.util.vo;
 
+import com.yanzuoguang.util.helper.StringHelper;
+
+import java.util.ArrayList;
 import java.util.LinkedHashMap;
+import java.util.List;
 
 /**
  * 行映射
@@ -8,4 +12,33 @@ import java.util.LinkedHashMap;
  * @author 颜佐光
  */
 public class MapRow extends LinkedHashMap<String, Object> {
+
+    /**
+     * 删除所有的值，当值等于默认值时
+     *
+     * @param rows          行信息
+     * @param columns       列信息
+     * @param defaultValues 默认值集合,默认包含空值和空字符串
+     */
+    public static <T> void removeRowColumnOrDefaultValue(List<MapRow> rows, List<String> columns, List<T> defaultValues) {
+        List<String> removeColumns = new ArrayList<>();
+        for (String column : columns) {
+            boolean isDefaultValue = true;
+            for (MapRow row : rows) {
+                Object value = row.get(column);
+                if (StringHelper.isEmpty(value) || defaultValues.contains(value)) {
+                } else {
+                    isDefaultValue = false;
+                }
+            }
+            if (isDefaultValue) {
+                removeColumns.add(column);
+            }
+        }
+        for (MapRow row : rows) {
+            for (String removeColumn : removeColumns) {
+                row.remove(removeColumn);
+            }
+        }
+    }
 }

yzg-util-base/src/test/java/base/TestMapRow.java

 package base;
 
+import com.yanzuoguang.util.helper.JsonHelper;
 import com.yanzuoguang.util.vo.MapRow;
 import org.junit.Assert;
 import org.junit.Test;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
 public class TestMapRow {
 
     @Test
@@ -17,8 +22,9 @@ public class TestMapRow {
         mapRow2.put("key1", "value1");
         mapRow2.put("key2", "value2");
 
-        Assert.assertEquals(mapRow,mapRow2);
+        Assert.assertEquals(mapRow, mapRow2);
     }
+
     @Test
     public void testMapRow2() {
         MapRow mapRow = new MapRow();
@@ -30,8 +36,9 @@ public class TestMapRow {
         mapRow2.put("key2", "value2");
         mapRow2.put("key1", "value1");
 
-        Assert.assertEquals(mapRow,mapRow2);
+        Assert.assertEquals(mapRow, mapRow2);
     }
+
     @Test
     public void testMapRow3() {
         MapRow mapRow = new MapRow();
@@ -44,8 +51,9 @@ public class TestMapRow {
         mapRow2.put("key2", "value2");
         mapRow2.put("key1", "value1");
 
-        Assert.assertNotEquals(mapRow,mapRow2);
+        Assert.assertNotEquals(mapRow, mapRow2);
     }
+
     @Test
     public void testMapRow4() {
         MapRow mapRow = new MapRow();
@@ -58,6 +66,55 @@ public class TestMapRow {
         mapRow2.put("key1", "value1");
         mapRow2.put("key3", "value3");
 
-        Assert.assertNotEquals(mapRow,mapRow2);
+        Assert.assertNotEquals(mapRow, mapRow2);
+    }
+
+    @Test
+    public void testMapRowRemove() {
+        List<MapRow> list = new ArrayList<>();
+
+        MapRow mapRow = new MapRow();
+        mapRow.put("key1", "value1");
+        mapRow.put("key2", "value2");
+        mapRow.put("key4", "");
+        mapRow.put("key5", null);
+        mapRow.put("key6", "");
+        mapRow.put("key7", null);
+        mapRow.put("key8", 0);
+        mapRow.put("key9", 0D);
+        list.add(mapRow);
+
+        MapRow mapRow2 = new MapRow();
+        mapRow2.put("key2", "value2");
+        mapRow2.put("key1", "value1");
+        mapRow2.put("key3", "value3");
+        mapRow2.put("key4", "");
+        mapRow2.put("key5", null);
+        mapRow2.put("key6", "");
+        mapRow2.put("key7", null);
+        mapRow2.put("key8", 0);
+        mapRow2.put("key9", 0D);
+        list.add(mapRow2);
+
+        MapRow mapRow3 = new MapRow();
+        mapRow3.put("key1", "value1");
+        mapRow3.put("key3", "value3");
+        mapRow3.put("key4", "");
+        mapRow3.put("key5", null);
+        mapRow3.put("key6", "");
+        mapRow3.put("key7", null);
+        mapRow3.put("key8", 0);
+        mapRow3.put("key9", 0D);
+        list.add(mapRow3);
+
+        MapRow.removeRowColumnOrDefaultValue(list,
+                Arrays.asList("key1", "key2", "key3", "key4", "key5", "key8", "key9"),
+                Arrays.asList(0, 0D)
+        );
+
+
+        Assert.assertEquals("[{\"key1\":\"value1\",\"key2\":\"value2\",\"key6\":\"\"},{\"key2\":\"value2\",\"key1\":\"value1\",\"key3\":\"value3\",\"key6\":\"\"},{\"key1\":\"value1\",\"key3\":\"value3\",\"key6\":\"\"}]",
+                JsonHelper.serialize(list));
+
     }
 }