enhance the code

Author: automvc

src/main/java/org/teasoft/beex/android/SQLiteTransaction.java

@@ -48,7 +48,7 @@ public void begin() {
 
 	@Override
 	public void commit() {
-		Logger.info("[Bee] SQLiteTransaction(android) commit. ");
+		Logger.info("[Bee] SQLiteTransaction(android) commit.");
 		if (!isBegin) throw new BeeSQLException("The SQLiteTransaction did not to begin!");
 		try {
 			db.setTransactionSuccessful();

src/main/java/org/teasoft/beex/autogen/DdlViaExcel.java

@@ -43,8 +43,7 @@ public class DdlViaExcel {
 
 	private static final String CREATE_TABLE = "CREATE TABLE ";
 	private static String LINE_SEPARATOR = System.getProperty("line.separator"); // 换行符
-//	private static PreparedSql preparedSql = BeeFactoryHelper.getPreparedSql();
-	
+
 	/**
 	 * create table via sheet of excel.
 	 * @param excelFullPath excel FullPath

src/main/java/org/teasoft/beex/cache/redis/BeeExtRedisCache.java

@@ -17,7 +17,7 @@
 
 package org.teasoft.beex.cache.redis;
 
-import java.util.Random;
+import java.util.concurrent.ThreadLocalRandom;
 
 import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
 import org.teasoft.bee.osql.Serializer;
@@ -47,7 +47,7 @@ public class BeeExtRedisCache extends DefaultBeeExtCache {
 	private static final String FIELD = "Bee";
 	private static final byte[] FIELD_BYTES = FIELD.getBytes();
 
-	private final Random random=new Random();
+	private final ThreadLocalRandom random=ThreadLocalRandom.current();
 	private int max=0;
 	private int min=0;
 	private int baseNum=0;