package com.manage; import java.io.*; /** * @ProjectName: * @Description: * @Param 传输参数 * @Return * @Author: 曾文和 * @CreateDate: 2019/11/28 11:42 * @UpdateUser: 曾文和 * @UpdateDate: 2019/11/28 11:42 * @UpdateRemark: 更新说明 * @Version: 1.0 */ public class test { public static void main(String[] args) throws Exception{ System.out.println(); } public static String readfile(String filePath){ File file = new File(filePath); InputStream input = null; try { input = new FileInputStream(file); } catch (FileNotFoundException e) { e.printStackTrace(); } StringBuffer buffer = new StringBuffer(); byte[] bytes = new byte[1024]; try { for(int n ; (n = input.read(bytes))!=-1 ; ){ buffer.append(new String(bytes,0,n,"GBK")); } } catch (IOException e) { e.printStackTrace(); } int i = buffer.toString().lastIndexOf(""); String substring = buffer.substring(0, i); String substring1 = substring.substring(substring.length() - 4, substring.length()); Float f = Float.valueOf(substring1); Math.round(f); System.out.println(substring1); return buffer.toString(); } public String getBody(String val) { String start = ""; String end = ""; int s = val.indexOf(start) + start.length(); int e = val.indexOf(end); return val.substring(s, e); } }