struts2 分頁查詢例項
阿新 • • 發佈:2019-02-14
public class PageUtil {
public static Page createPage(int everyPage,int totalCount,int currentPage) {
everyPage = getEveryPage(everyPage);
currentPage = getCurrentPage(currentPage);
int totalPage = getTotalPage(everyPage, totalCount);
int beginIndex = getBeginIndex(everyPage, currentPage);
boolean hasPrePage = getHasPrePage(currentPage);
boolean hasNextPage = getHasNextPage(totalPage, currentPage);
return new Page(everyPage, totalCount, totalPage, currentPage,
beginIndex, hasPrePage, hasNextPage);
}
public static Page createPage(Page page,int totalCount) {
int everyPage = getEveryPage(page.getEveryPage());
int currentPage = getCurrentPage(page.getCurrentPage());
int totalPage = getTotalPage(everyPage, totalCount);
int beginIndex = getBeginIndex(everyPage, currentPage);
boolean hasPrePage = getHasPrePage(currentPage);
boolean hasNextPage = getHasNextPage(totalPage, currentPage);
return new Page(everyPage, totalCount, totalPage, currentPage,
beginIndex, hasPrePage, hasNextPage);
}
//設定每頁顯示記錄數
public static int getEveryPage(int everyPage) {
return everyPage == 0 ? 10 : everyPage;
}
//設定當前頁
public static int getCurrentPage(int currentPage) {
return currentPage == 0 ? 1 : currentPage;
}
//設定總頁數,需要總記錄數,每頁顯示多少
public static int getTotalPage(int everyPage,int totalCount) {
int totalPage = 0;
if(totalCount % everyPage == 0) {
totalPage = totalCount / everyPage;
} else {
totalPage = totalCount / everyPage + 1;
}
return totalPage;
}
//設定起始點,需要每頁顯示多少,當前頁
public static int getBeginIndex(int everyPage,int currentPage) {
return (currentPage - 1) * everyPage;
}
//設定是否有上一頁,需要當前頁
public static boolean getHasPrePage(int currentPage) {
return currentPage == 1 ? false : true;
}
//設定是否有下一個,需要總頁數和當前頁
public static boolean getHasNextPage(int totalPage, int currentPage) {
return currentPage == totalPage || totalPage == 0 ? false : true;
}
public static Page createPage(int everyPage,int totalCount,int currentPage) {
everyPage = getEveryPage(everyPage);
currentPage = getCurrentPage(currentPage);
int totalPage = getTotalPage(everyPage, totalCount);
int beginIndex = getBeginIndex(everyPage, currentPage);
boolean hasPrePage = getHasPrePage(currentPage);
boolean hasNextPage = getHasNextPage(totalPage, currentPage);
return new Page(everyPage, totalCount, totalPage, currentPage,
beginIndex, hasPrePage, hasNextPage);
}
public static Page createPage(Page page,int totalCount) {
int everyPage = getEveryPage(page.getEveryPage());
int currentPage = getCurrentPage(page.getCurrentPage());
int totalPage = getTotalPage(everyPage, totalCount);
int beginIndex = getBeginIndex(everyPage, currentPage);
boolean hasPrePage = getHasPrePage(currentPage);
boolean hasNextPage = getHasNextPage(totalPage, currentPage);
return new Page(everyPage, totalCount, totalPage, currentPage,
beginIndex, hasPrePage, hasNextPage);
}
//設定每頁顯示記錄數
public static int getEveryPage(int everyPage) {
return everyPage == 0 ? 10 : everyPage;
}
//設定當前頁
public static int getCurrentPage(int currentPage) {
return currentPage == 0 ? 1 : currentPage;
}
//設定總頁數,需要總記錄數,每頁顯示多少
public static int getTotalPage(int everyPage,int totalCount) {
int totalPage = 0;
if(totalCount % everyPage == 0) {
totalPage = totalCount / everyPage;
} else {
totalPage = totalCount / everyPage + 1;
}
return totalPage;
}
//設定起始點,需要每頁顯示多少,當前頁
public static int getBeginIndex(int everyPage,int currentPage) {
return (currentPage - 1) * everyPage;
}
//設定是否有上一頁,需要當前頁
public static boolean getHasPrePage(int currentPage) {
return currentPage == 1 ? false : true;
}
//設定是否有下一個,需要總頁數和當前頁
public static boolean getHasNextPage(int totalPage, int currentPage) {
return currentPage == totalPage || totalPage == 0 ? false : true;
}