我正在尝试使用 hibernate 对 servlet 内的表的行进行分页。但是一旦我单击页面的所需索引,它总是只给我表的第一组行。
我的servlet代码:
int pageIndex = 0;
int totalNumberOfRecords = 0;
int numberOfRecordsPerPage = 5;
String sPageIndex = request.getParameter("pageIndex");
if (sPageIndex == null) {
pageIndex = 1;
} else {
pageIndex = Integer.parseInt(sPageIndex);
}
int s = (pageIndex * numberOfRecordsPerPage) - numberOfRecordsPerPage;
List<ProductHasSize> phs = ses.createCriteria(ProductHasSize.class)
.setFirstResult(s)
.setMaxResults(numberOfRecordsPerPage)
.list();
for (ProductHasSize pro : phs) {... some html content here...}
List<ProductHasSize> phs1 = ses.createCriteria(ProductHasSize.class)
.setProjection(Projections.rowCount()).list();
Iterator i = phs1.iterator();
if (i.hasNext()) {
Object o = i.next();
totalNumberOfRecords = Integer.parseInt(o.toString());
}
int noOfPages = totalNumberOfRecords / numberOfRecordsPerPage;
if (totalNumberOfRecords > (noOfPages * numberOfRecordsPerPage)) {
noOfPages = noOfPages + 1;
}
for (int j = 1; j <= noOfPages; j++) {
String myurl = "products.jsp?pageIndex=" + j;
String active = j == pageIndex ? "active" : "";
pagination = pagination + "<li class='" + active + "'><a href=" + myurl + ">" + j + "</a></li>";
}
提前致谢。
最佳答案
尝试替换:
if (i.hasNext()) {
与:
while(i.hasNext()) {
并像这样编写 while 循环:
while(i.hasNext()) {
Object o = i.next();
totalNumberOfRecords += Integer.parseInt(o.toString());
int noOfPages = totalNumberOfRecords / numberOfRecordsPerPage;
if (totalNumberOfRecords > (noOfPages * numberOfRecordsPerPage)) {
noOfPages = noOfPages + 1;
}
}
关于java - 分页点击页面索引始终仅加载第一页,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34784621/