标签:fse private exception datagrid -- seda template rip nat
1. 修改页面中datagrid的URL地址,访问action
// 取派员信息表格 $(‘#grid‘).datagrid( { iconCls : ‘icon-forward‘, fit : true, border : false, rownumbers : true,//显示行号 striped : true, pageList: [3,5,10], pagination : true, toolbar : toolbar,//工具栏 url : "${pageContext.request.contextPath}/staffAction_pageQuery.action", //这里修改url idField : ‘id‘, columns : columns, onDblClickRow : doDblClickRow//指定数据表格的双击行事件 });
项目路径src\com\zang\bos\web\action下staffAction.java中的StaffAction类
/** * 取派员管理 * @author zhaoqx * */ @Controller @Scope("prototype") public class StaffAction extends BaseAction<Staff>{ //注入Service @Autowired private IStaffService staffService; private int page;//页码 private int rows;//每页显示的记录数 public void setRows(int rows) { this.rows = rows; } public void setPage(int page) { this.page = page; }
2. 创建PageBean类,封装分页信息
/** * 封装分页信息 * @author zhaoqx * */ public class PageBean { private int currentPage;//当前页码 private int pageSize;//每页显示记录数 private DetachedCriteria detachedCriteria;//离线条件查询对象,包装查询条件 private int total;//总记录数 private List rows;//当前页需要展示的数据集合
public int getCurrentPage() { return currentPage; } public void setCurrentPage(int currentPage) { this.currentPage = currentPage; } public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public int getTotal() { return total; } public void setTotal(int total) { this.total = total; } public DetachedCriteria getDetachedCriteria() { return detachedCriteria; } public void setDetachedCriteria(DetachedCriteria detachedCriteria) { this.detachedCriteria = detachedCriteria; } public List getRows() { return rows; } public void setRows(List rows) { this.rows = rows; } }
3. 在StaffAction中提供pageQuery方法,提供两个setPage和setRows方法,接收页面提交参数
private int page;//页码 private int rows;//每页显示的记录数 public void setRows(int rows) { this.rows = rows; } public void setPage(int page) { this.page = page; }
/** * 分页查询方法 * @throws IOException */ public String pageQuery() throws IOException{ PageBean pageBean = new PageBean(); pageBean.setCurrentPage(page); pageBean.setPageSize(rows); DetachedCriteria detachedCriteria = DetachedCriteria.forClass(Staff.class); pageBean.setDetachedCriteria(detachedCriteria); staffService.pageQuery(pageBean); //将PageBean对象转为json返回 JSONObject jsonObject = JSONObject.fromObject(pageBean); String json = jsonObject.toString(); ServletActionContext.getResponse().setContentType("text/json;charset=UTF-8"); ServletActionContext.getResponse().getWriter().print(json); return NONE; }
4. 在src\com\zang\bos\dao路径下BaseDao中提供通用分页查询方法
/** * 通用分页查询方法 */ public void pageQuery(PageBean pageBean) { int currentPage = pageBean.getCurrentPage(); int pageSize = pageBean.getPageSize(); DetachedCriteria detachedCriteria = pageBean.getDetachedCriteria(); //总数据量----select count(*) from bc_staff //改变Hibernate框架发出的sql形式 detachedCriteria.setProjection(Projections.rowCount());//select count(*) from bc_staff List<Long> list = this.getHibernateTemplate().findByCriteria(detachedCriteria); Long total = list.get(0); pageBean.setTotal(total.intValue());//设置总数据量 detachedCriteria.setProjection(null);//修改sql的形式为select * from .... //重置表和类的映射关系 detachedCriteria.setResultTransformer(DetachedCriteria.ROOT_ENTITY); //当前页展示的数据集合 int firstResult = (currentPage - 1) * pageSize; int maxResults = pageSize; List rows = this.getHibernateTemplate().findByCriteria(detachedCriteria, firstResult, maxResults); pageBean.setRows(rows); }
效果:
标签:fse private exception datagrid -- seda template rip nat
原文地址:http://www.cnblogs.com/zjfjava/p/7031020.html