Ofbiz 分页代码

Delegator delegator = (Delegator) request.getAttribute("delegator");

LocalDispatcher dispatcher = (LocalDispatcher) request

.getAttribute("dispatcher");

HttpSession session = request.getSession();

GenericValue userLogin = (GenericValue) session

.getAttribute("userLogin");

// 分页相关

String pageNumber = request.getParameter("pageNumber");

String pageSize = request.getParameter("pageSize");

// 当前页

int intPage = Integer.parseInt((pageNumber == null || pageNumber

.equals("0")) ? "1" : pageNumber);

// 每页显示条数

int number = Integer

.parseInt((pageSize == null || pageSize.equals("0")) ? defaultPageSize

: pageSize);

// 每页的开始记录 第一页为1 第二页为number +1

int lowIndex = (intPage - 1) * number + 1;

int highIndex = intPage * number;

EntityListIterator eli = null;

EntityFindOptions findOptions = new EntityFindOptions(true,

EntityFindOptions.TYPE_SCROLL_SENSITIVE,

EntityFindOptions.CONCUR_READ_ONLY, true);

// 根据用户loginId判断用户是否拥有系统管理员角色，如果有就任务是系统管理员，查询所有角色。

List<EntityCondition> connList = FastList.newInstance();

try {

TransactionUtil.begin();

eli = delegator.find("SecurityGroup",

EntityCondition.makeCondition(connList), null, null, null,

findOptions);

List<GenericValue> roleList = eli.getPartialList(lowIndex, number);

int totalPage = (eli.getResultsSizeAfterPartialList() + number - 1)

/ number;

request.setAttribute("pageSize", number);

request.setAttribute("totalPage", totalPage);

request.setAttribute("currentPage", intPage);

request.setAttribute("roleList", roleList);

TransactionUtil.commit();

} catch (GenericEntityException e) {

// TODO Auto-generated catch block

e.printStackTrace();

try {

TransactionUtil.rollback();

} catch (GenericTransactionException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

} finally {

try {

if (eli != null) {

eli.close();

}

} catch (GenericEntityException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}