按位长度进行字符串的分割输出，长度不足补0

  1 import java.util.ArrayList;
  2 import java.util.List;
  3 public class NiukeTest {
  4 public static void main(String[] args) {
  5 List<String> strList=getSpilitStrList("1847519751890554548999");
  6 System.out.println(strList);
  7 }
  8 /**
  9 * 按8位长度进行字符串的分割输出，长度不足补0
 10 * @param srcStr
 11 * @return
 12 */
 13 public static String getSpilitStr(String srcStr){
 14 if ("".equals(srcStr.trim())){
 15 return null;
 16 }
 17 if (srcStr.length()>100){
 18 System.out.println("输入字符串过长！超过长度100");
 19 return null;
 20 }
 21 // helloworldiamwanzhongliao
 22 StringBuilder stringBuilder = new StringBuilder();
 23 boolean flag=false;
 24 String srcStrCopy=srcStr;
 25 int count=1;
 26 for (int i = 0; i < srcStr.length(); i++) {
 27 char charAt = srcStr.charAt(i);
 28 stringBuilder.append(charAt);
 29 if (flag){
 30 if (stringBuilder.toString().contains(" ")){
 31 String[] strings = stringBuilder.toString().trim().split("\\s");
 32 StringBuilder stringBuilder1 = new StringBuilder();
 33 for (int k = 0; k < strings.length; k++) {
 34 stringBuilder1.append(strings[k]);
 35 }
 36 int length = stringBuilder1.length();
 37 if (length%8==0){
 38 String substring = srcStrCopy.substring(count*8);
 39 srcStr=substring;
 40 i=-1;
 41 stringBuilder.append(" ");
 42 count++;
 43 if (srcStr.length()/8<1){
 44 StringBuilder stringBuilder4 = new StringBuilder();
 45 stringBuilder4.append(srcStr);
 46 for (int j = 0; j < 8-srcStr.length(); j++) {
 47 stringBuilder4.append("0");
 48 }
 49 stringBuilder.delete(stringBuilder.toString().lastIndexOf("
 50 "),stringBuilder.toString().length());
 51 stringBuilder.append(" ");
 52 stringBuilder.append(stringBuilder4.toString());
 53 break;
 54 }
 55 continue;
 56 }else {
 57 if (srcStr.length()/8<1){
 58 StringBuilder stringBuilder3 = new StringBuilder();
 59 stringBuilder3.append(srcStr);
 60 for (int j = 0; j < 8-srcStr.length(); j++) {
 61 stringBuilder3.append("0");
 62 }
 63 stringBuilder.delete(stringBuilder.toString().lastIndexOf("
 64 "),stringBuilder.toString().length());
 65 stringBuilder.append(" ");
 66 stringBuilder.append(stringBuilder3.toString());
 67 break;
 68 }
 69 }
 70 }
 71 }else {
 72 if (stringBuilder.toString().length()%8==0){
 73 String substring = srcStrCopy.substring(count*8);
 74 srcStr=substring;
 75 i=-1;
 76 stringBuilder.append(" ");
 77 count++;
 78 flag=true;
 79 continue;
 80 }else if (srcStrCopy.length()/8<1){
 81 StringBuilder stringBuilder2 = new StringBuilder();
 82 stringBuilder2.append(srcStrCopy);
 83 for (int j = 0; j < 8-srcStrCopy.length(); j++) {
 84 stringBuilder2.append("0");
 85 }
 86 return stringBuilder2.toString();
 87 }
 88 }
 89 }
 90 return stringBuilder.toString();
 91 }
 92 /**
 93 * 获取分割字符串集合
 94 * @return
 95 */
 96 public static List<String> getSpilitStrList(String srcStr){
 97 String spilitStr = getSpilitStr(srcStr);
 98 String[] splitStrArr = spilitStr.split("\\s");
 99 int length = splitStrArr.length;
100 ArrayList<String> stringArrayList = new ArrayList<>();
101 if (length>1){
102 for (int i = 0; i < splitStrArr.length; i++) {
103 if (i==splitStrArr.length-1){
104 if (splitStrArr[splitStrArr.length-1].startsWith("0")){
105 continue;
106 }
107 }
108 stringArrayList.add(splitStrArr[i]);
109 }
110 }else {
111 stringArrayList.add(spilitStr);
112 }
113 return stringArrayList;
114 }
115 }