JAVA paging tool class and its usage, java paging tool class

JAVA paging tool class and its usage, java paging tool class

Pager. java

1 package pers. kangxu. datautils. common; 2 3 import java. io. serializable; 4 import java. util. list; 5 6/** 7*8 * <B> generic paging class </B> 9*10 * @ author kangxu 11 * @ param <T> 12*13 */14 public class Pager <T> implements Serializable {15 16/** 17*18 */19 private static final long serialVersionUID = 4542617637761955078L; 20 21/** 22 * currentPage current page 23 */24 private int currentPage = 1; 25/** 26 * PageSize 27 */28 private int pageSize = 10; 29/** 30 * Total pageTotal pages 31 */32 private int pageTotal; 33/** 34 * Total recordTotal number of items 35 */36 private int recordTotal = 0; 37/** 38 * previousPage Previous Page 39 */40 private int previousPage; 41/** 42 * nextPage next page 43 */44 private int nextPage; 45/** 46 * firstPage first page 47 */48 private int firstPage = 1; 49/** 50 * lastPage last page 51 */52 private Int lastPage; 53/** 54 * content 55 */56 private List per page <T> content; 57 58 // The following set method is the 59/** 60 * value to be assigned to set the current page <br> 61*62 * @ author kangxu 63*64 * @ param currentPage 65 */ 66 public void setCurrentPage (int currentPage) {67 this. currentPage = currentPage; 68} 69 70/** 71 * sets the size of each page, or you do not need to assign a value, the default size is 10 <br> 72*73 * @ author kangxu 74*75 * @ param pageSize 76 */77 public void setPageSize (in T pageSize) {78 this. pageSize = pageSize; 79} 80 81/** 82 * set the total number of entries, the default value is 0 <br> 83*84 * @ author kangxu 85*86 * @ param recordTotal 87 */88 public void setRecordTotal (int recordTotal) {89 this. recordTotal = recordTotal; 90 otherAttr (); 91} 92 93/** 94 * set the page content <br> 95*96 * @ author kangxu 97*98 * @ param content 99 */100 public void setContent (List <T> content) {101 this. content = content; 10 2} 103 104/** 105 * set other parameters 106*107 * @ author kangxu108 * 109 */110 public void otherAttr () {111 // total page number 112 this. pageTotal = this. recordTotal % this. pageSize> 0? This. recordTotal/this. pageSize + 1: this. recordTotal/this. pageSize; 113 // page 1 114 this. firstPage = 1; 115 // The last page 116 this. lastPage = this. pageTotal; 117 // the first page of 118 if (this. currentPage> 1) {119 this. previousPage = this. currentPage-1; 120} else {121 this. previousPage = this. firstPage; 122} 123 // next page 124 if (this. currentPage <this. lastPage) {125 this. nextPage = this. currentPage + 1; 126} else {127 this. nextPage = this. lastPage; 128} 129} 130 131 // release the private property 132 public int getCurrentPage () {133 return currentPage; 134} 135 136 public int getPageSize () {137 return pageSize; 138} 139 140 public int getPageTotal () {141 return pageTotal; 142} 143 144 public int getRecordTotal () {145 return recordTotal; 146} 147 148 public int getPreviousPage () {149 return previousPage; 150} 151 152 public int getNextPage () {153 return nextPage; 154} 155 156 public int getFirstPage () {157 return firstPage; 158} 159 160 public int getLastPage () {161 return lastPage; 162} 163 164 public List <T> getContent () {165 return content; 166} 167 168 @ Override169 public String toString () {170 return "Pager [currentPage =" + currentPage + ", pageSize =" + pageSize171 + ", pageTotal = "+ pageTotal +", recordTotal = "+ response +", previousPage = "+ previousPage +", nextPage = "+ nextPage173 +", firstPage = "+ firstPage + ", lastPage = "+ lastPage174 +", content = "+ content +"] "; 175} 176 177 178}

Use PagerTester. java

1 package pers. kangxu. datautils. utils; 2 3 import java. util. arrayList; 4 import java. util. list; 5 6 import pers. kangxu. datautils. common. pager; 7 8/** 9 * Paging data test 10 * <B> 11*12 * </B> 13 * @ author kangxu14 * 15 */16 public class PagerTester {17 18 public static void main (String [] args) {19 20 Pager <String> pager = new Pager <String> (); 21 22 List <String> content = new ArrayList <String> (); 23 content. add ("str1"); 24 content. add ("str2"); 25 content. add ("str3"); 26 content. add ("str4"); 27 content. add ("str5"); 28 content. add ("str6"); 29 content. add ("str7"); 30 content. add ("str8"); 31 content. add ("str9"); 32 content. add ("str10"); 33 34 pager. setCurrentPage (1); 35 pager. setPageSize (10); 36 pager. setRecordTotal (62); 37 pager. setContent (content); 38 39 System. out. println (pager); 40 41} 42 43}