日期:2014-05-16 浏览次数:20649 次
/* * @param count 数据总条目数 * @param pageCount 每页显示数据数 * */ private static String RowSetToJson(RowSet rt,int count,int pageCount){ ResultSetMetaData rm=null; StringBuilder sb=new StringBuilder(); try { rm=rt.getMetaData(); sb.append("{\"pageCount\":\""+count+"\",\"pageData\":["); int columNum=rm.getColumnCount(); List<String> list=new ArrayList<String>(); for(int i=0;i<columNum;i++){ list.add(rm.getColumnName(i+1)); } for(int i=0;i<pageCount&&rt.next();i++){ sb.append("{"); for(int j=0;j<list.size();j++){ if(j!=list.size()-1){ sb.append("\""+list.get(j)+"\":\""+rt.getString(list.get(j))+"\","); }else{ sb.append("\""+list.get(j)+"\":\""+rt.getString(list.get(j))+"\""); } } if(i!=pageCount-1){ sb.append("},"); }else{ sb.append("}"); } } sb.append("]}"); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } return sb.toString(); }
public static String getJson(String tableName,String select,String where,String orderby,int pageIndex,int pageCount){ StringBuilder sb=new StringBuilder(); sb.append("select "+select+" from "+tableName); if(!"".equals(where)){ sb.append(" "); if(where.startsWith("where")){ sb.append(" "+where); }else{ sb.append(" where "+where); } } sb.append(" "+orderby+" "); int temp=(pageIndex-1)*pageCount; sb.append(" limit "+temp+","+pageCount); RowSet rt=DBop.search(sb.toString()); //求数据总条目数 int rowNum=0; rowNum=DBop.getNum(tableName,where); return RowSetToJson(rt,rowNum,pageCount); }
import com.jiang.DB.GetData; import com.opensymphony.xwork2.ActionSupport; public class GetPageData extends ActionSupport { private String p;//当前页 private String orderby;//排序规则 private String data; public String getData() { return data; } public void setData(String data) { this.data = data; } public String getP() { return p; } public void setP(String p) { this.p = p; } public String getOrderby() { return orderby; } public void setOrderby(String orderby) { this.orderby = orderby; } public String execute()throws Exception{ if("".equals(orderby)){ orderby="order by id_t"; } if("".equals(p)){ p=String.valueOf(1); } if(Integer.parseInt(p)==0){ p=String.valueOf(1); } data=GetData.getJson("pagetest", "*", "","order by id_t", Integer.parseInt(p), 10); // System.out.println(data); return SUCCESS; } }]
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>jquery-ajax分页</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description"