单元测试测试，

test/com/platform/test/FileRename.java

@@ -0,0 +1,94 @@
+package com.platform.test;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Scanner;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import com.platform.entities.CheckoutEntity;
+import com.platform.entities.PreDataInfo;
+import com.platform.utils.Configs;
+
+public class FileRename {
+	
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		int total = sc.nextInt();
+		int a = total/12;
+		System.out.println(a*12 == total);
+		System.out.println(total);
+		System.out.println(removeLastSeparator("/a/b///"));
+		List<PreDataInfo> li = new ArrayList<PreDataInfo>();
+		for (int i = 0; i < 89000; i++) {
+			PreDataInfo a1 = new CheckoutEntity();
+			a1.setId(i+1);
+			a1.setAreaCode("aaa");
+			li.add(a1);
+		}
+		Date a1= new Date();
+		System.err.println("-------------------");
+		List<ArrayList<PreDataInfo>> re = insertBatch(li);
+		Date a2= new Date();
+		System.err.println(re.size());
+		System.err.println(a2.getTime() - a1.getTime());
+		
+		List<PreDataInfo>[] res = insertBatch2(li);
+		Date a3= new Date();
+		System.err.println(res.length);
+		System.err.println(a3.getTime()-a2.getTime());
+	}
+	
+	public static String removeLastSeparator(String path){
+		// 递归去掉 所有 结尾 /
+		if (path.length() < 1) {
+			return path;
+		}
+		String sep = "\\"+File.separator;
+		Pattern pattern2 = Pattern.compile(sep+"$");
+		Matcher matcher2 = pattern2.matcher(path);
+		if (matcher2.find()) {
+			path = path.substring(0, path.length()-1);
+			path = removeLastSeparator(path);
+		}
+		return path;
+	}
+	
+	private static List<ArrayList<PreDataInfo>> insertBatch(List<PreDataInfo> allAreaInsert) {
+		int listSize = allAreaInsert.size();
+		int loopSize = listSize/3;
+		if (loopSize * 100 != listSize) {
+			loopSize++;
+		}
+		List<ArrayList<PreDataInfo>> list = new ArrayList<ArrayList<PreDataInfo>>();
+		for (int i = 0; i < loopSize; i++) {
+			list.add(new ArrayList<PreDataInfo>());
+		}
+		for (int i = 0; i < listSize; i++) {
+			list.get(i%loopSize).add(allAreaInsert.get(i));
+		}
+		return list;
+	}
+	
+	private static List<PreDataInfo>[] insertBatch2(List<PreDataInfo> allAreaInsert) {
+		int listSize = allAreaInsert.size();
+		int loopSize = listSize/3;
+		if (loopSize * 100 != listSize) {
+			loopSize++;
+		}
+		List<PreDataInfo>[] list = new ArrayList[loopSize];
+		for (int i = 0; i < loopSize; i++) {
+			list[i] = new ArrayList<PreDataInfo>();
+		}
+		for (int i = 0; i < listSize; i++) {
+			list[i%loopSize].add(allAreaInsert.get(i));
+		}
+//		for (List<PreDataInfo> list2 : list) {
+//			System.err.println(list2.size());
+//		}
+		return list;
+	}
+
+}

test/com/platform/test/TestPattern.java

@@ -0,0 +1,26 @@
+package com.platform.test;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.junit.Test;
+
+public class TestPattern {
+	
+	@Test
+	public void test1Pattern() {
+		String s = "e/FTP_GFS_point/320404_49/321311_215/320100_4/1/";
+		
+		// 末尾 含有 /
+		Pattern pattern2 = Pattern.compile("\\d+\\/$");
+		Matcher matcher2 = pattern2.matcher(s);
+		//去掉 最后 的     数字 +/ 符合
+		if (matcher2.find()) {
+			String removeStr = matcher2.group();
+			s = s.replace(removeStr, "");
+		}
+		System.out.println(s);
+		
+	}
+
+}