将Flipper中的page页号换成start记录号，将影响到HttpServlet中findFlipper的实现

src/org/redkale/source/DataDefaultSource.java

@@ -19,6 +19,7 @@ import javax.sql.ConnectionPoolDataSource;
 import javax.xml.stream.*;
 import static org.redkale.source.FilterNode.formatToString;
 import org.redkale.util.*;
+import static org.redkale.source.FilterNode.formatToString;
 
 /**
  *
@@ -1697,10 +1698,10 @@ public final class DataDefaultSource implements DataSource, Function<Class, Enti
             final String sql = "SELECT a.* FROM " + info.getTable() + " a" + (join == null ? "" : join)
                 + ((where == null || where.length() == 0) ? "" : (" WHERE " + where)) + info.createSQLOrderby(flipper);
             if (debug.get() && info.isLoggable(Level.FINEST))
-                logger.finest(clazz.getSimpleName() + " query sql=" + sql + (flipper == null ? "" : (" LIMIT " + flipper.index() + "," + flipper.getSize())));
+                logger.finest(clazz.getSimpleName() + " query sql=" + sql + (flipper == null ? "" : (" LIMIT " + flipper.getStart() + "," + flipper.getSize())));
             final PreparedStatement ps = conn.prepareStatement(sql, ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
             final ResultSet set = ps.executeQuery();
-            if (flipper != null && flipper.index() > 0) set.absolute(flipper.index());
+            if (flipper != null && flipper.getStart() > 0) set.absolute(flipper.getStart());
             final int limit = flipper == null ? Integer.MAX_VALUE : flipper.getSize();
             int i = 0;
             while (set.next()) {

src/org/redkale/source/EntityCache.java

@@ -302,7 +302,7 @@ public final class EntityCache<T> {
         Stream<T> stream = this.list.stream();
         if (filter != null) stream = stream.filter(filter);
         if (comparator != null) stream = stream.sorted(comparator);
-        if (flipper != null) stream = stream.skip(flipper.index()).limit(flipper.getSize());
+        if (flipper != null) stream = stream.skip(flipper.getStart()).limit(flipper.getSize());
         final List<T> rs = new ArrayList<>();
         if (selects == null) {
             Consumer<? super T> action = x -> rs.add(needcopy ? newReproduce.copy(creator.create(), x) : x);

src/org/redkale/source/Flipper.java

@@ -20,7 +20,7 @@ public final class Flipper implements Serializable, Cloneable {
 
     private int size = DEFAULT_PAGESIZE;
 
-    private int page = 1;
+    private int start = 0;
 
     private String sort = "";
 
@@ -35,49 +35,49 @@ public final class Flipper implements Serializable, Cloneable {
         this.sort = sortColumn;
     }
 
-    public Flipper(int pageSize, int pageNo) {
+    public Flipper(int pageSize, int startIndex) {
         this.size = pageSize > 0 ? pageSize : DEFAULT_PAGESIZE;
-        this.page = pageNo > 0 ? pageNo : 1;
+        this.start = startIndex < 0 ? 0 : startIndex;
     }
 
-    public Flipper(int pageSize, int pageNo, String sortColumn) {
+    public Flipper(int pageSize, int startIndex, String sortColumn) {
         this.size = pageSize > 0 ? pageSize : DEFAULT_PAGESIZE;
-        this.page = pageNo > 0 ? pageNo : 1;
+        this.start = startIndex < 0 ? 0 : startIndex;
         this.sort = sortColumn;
     }
 
     public void copyTo(Flipper copy) {
         if (copy == null) return;
-        copy.page = this.page;
+        copy.start = this.start;
         copy.size = this.size;
         copy.sort = this.sort;
     }
 
     public void copyFrom(Flipper copy) {
         if (copy == null) return;
-        this.page = copy.page;
+        this.start = copy.start;
         this.size = copy.size;
         this.sort = copy.sort;
     }
 
     public Flipper next() {
-        this.page++;
+        this.start = getStart() + this.size;
         return this;
     }
 
     @Override
     @SuppressWarnings("CloneDoesntCallSuperClone")
     public Flipper clone() {
-        return new Flipper(this.size, this.page, this.sort);
+        return new Flipper(this.size, this.start, this.sort);
     }
 
-    public int index() {
-        return (getPage() - 1) * getSize();
+    public int getStart() {
+        return start;
     }
 
     @Override
     public String toString() {
-        return this.getClass().getSimpleName() + "{page:" + this.page + ", size=" + this.size + ", sort=" + this.sort + "}";
+        return this.getClass().getSimpleName() + "{start:" + this.start + ", size=" + this.size + ", sort=" + this.sort + "}";
     }
 
     public int getSize() {
@@ -90,14 +90,8 @@ public final class Flipper implements Serializable, Cloneable {
         }
     }
 
-    public int getPage() {
-        return page;
-    }
-
-    public void setPage(int page) {
-        if (page >= 0) {
-            this.page = page;
-        }
+    public void setStart(int start) {
+        this.start = start < 0 ? 0 : start;
     }
 
     public String getSort() {