mysql 较为高效的分页

直接上代码

DaoImpl:

/**

* 开发转让页面展示 ，查询搜索数据，而且分页展示

* @param zrdp 搜索条件封装对象

* @return

*/

@SuppressWarnings("unchecked")

public List<Zrdpxx>  showAllZrdpxxPageindex(Zrdpxx zrdp,int pageindex,String keys) {

String
sql ="select * from zrdpxx where dpxx_htaiztai = 2";

if(zrdp!=null){

if(zrdp.getDpxxId()!=null&&!zrdp.getDpxxId().equals("")){

sql+=" and dpxx_id =" +zrdp.getDpxxId();

}

if(zrdp.getDpxxQyu()!=null&&!zrdp.getDpxxQyu().equals("-选择区域-")){

sql+=" and dpxx_qyu = '"+zrdp.getDpxxQyu()+"'";

}

if(zrdp.getDpxxPyetai()!=null&&!zrdp.getDpxxPyetai().equals("")){

sql+=" and dpxx_pyetai = '"+zrdp.getDpxxPyetai()+"'";

}

if(zrdp.getDpxxZyetai()!=null&&!zrdp.getDpxxZyetai().equals("0")&&!zrdp.getDpxxZyetai().equals("null")){

sql+=" and dpxx_zyetai = '"+zrdp.getDpxxZyetai()+"'";

}



if(zrdp.getBigmji()!=0&&zrdp.getSmlmj()!=-1){

sql += " and dpxx_mji between "+zrdp.getSmlmj()+" and " +zrdp.getBigmji();

}



//開始时间和结束时间均有值

if(zrdp.getBeginTime()!=null&&!zrdp.getBeginTime().equals("")&&zrdp.getEndTimes()!=null&&!zrdp.getEndTimes().equals("null")){

sql +=" and dpxx_fbusjian  between '"+zrdp.getBeginTime()+"' and '"+zrdp.getEndTimes()+"'";

}

//仅仅有開始时间

if(zrdp.getBeginTime()!=null&&!zrdp.getBeginTime().equals("")&&zrdp.getEndTimes()==null){

sql +=" and dpxx_fbusjian  between '"+zrdp.getBeginTime()+"' and now()";

}

if(!("标题 地址 电话").equals(keys)){

sql +=" and (dpxx_bti like '%"+keys+"%' or tel like '%"+keys+"%' or dpxx_jtidzhi like '%"+keys+"%')";

}

sql +=" order by dpxx_fbusjian desc";

}

return getSession().createSQLQuery(sql).addEntity(Zrdpxx.class).setFirstResult((pageindex-1)*20).setMaxResults(20).list();

}





// public int getallzrdpcounts() {

// Object oo = getSession().createSQLQuery("select count(dpxx_id) from zrdpxx where dpxx_htaiztai =2").uniqueResult();

// return Integer.parseInt(oo.toString());

// }

//







/**

* 开发转让页面展示 ，查询满足条件的开发转让店铺信息

* @param zrdp 搜索条件封装对象

* @return

*/

@SuppressWarnings("unchecked")

public int showAllZrdpxx(Zrdpxx zrdp,String keys) {

String
sql ="select count(dpxx_id) from zrdpxx where dpxx_htaiztai = 2";

if(zrdp!=null){

if(zrdp.getDpxxId()!=null&&!zrdp.getDpxxId().equals("")){

sql+=" and dpxx_id =" +zrdp.getDpxxId();

}

if(zrdp.getDpxxQyu()!=null&&!zrdp.getDpxxQyu().equals("-选择区域-")){

sql+=" and dpxx_qyu = '"+zrdp.getDpxxQyu()+"'";

}

if(zrdp.getDpxxPyetai()!=null&&!zrdp.getDpxxPyetai().equals("")){

sql+=" and dpxx_pyetai = '"+zrdp.getDpxxPyetai()+"'";

}

if(zrdp.getDpxxZyetai()!=null&&!zrdp.getDpxxZyetai().equals("0")&&!zrdp.getDpxxZyetai().equals("null")){

sql+=" and dpxx_zyetai = '"+zrdp.getDpxxZyetai()+"'";

}



if(zrdp.getBigmji()!=0&&zrdp.getSmlmj()!=-1){

sql += " and dpxx_mji between "+zrdp.getSmlmj()+" and " +zrdp.getBigmji();

}



//開始时间和结束时间均有值

if(zrdp.getBeginTime()!=null&&!zrdp.getBeginTime().equals("")&&zrdp.getEndTimes()!=null&&!zrdp.getEndTimes().equals("null")){

sql +=" and dpxx_fbusjian  between '"+zrdp.getBeginTime()+"' and '"+zrdp.getEndTimes()+"'";

}

//仅仅有開始时间

if(zrdp.getBeginTime()!=null&&!zrdp.getBeginTime().equals("")&&zrdp.getEndTimes()==null){

sql +=" and dpxx_fbusjian  between '"+zrdp.getBeginTime()+"' and now()";

}

if(!("标题 地址 电话").equals(keys)){

sql +=" and (dpxx_bti like '%"+keys+"%' or tel like '%"+keys+"%' or dpxx_jtidzhi like '%"+keys+"%')";

}

}



Object oo =  getSession().createSQLQuery(sql).uniqueResult();

return Integer.parseInt(oo.toString());

 

}

Action:

/**

* 开发转让展示 ,追加对象搜索

* @return 集合

*/

public String getZrdpxxByzr(){

if(pid==1){

allcounts = zrDao.showAllZrdpxx(zrdpxx,keys);

}

forkaifazrlist = zrDao.showAllZrdpxxPageindex(zrdpxx, pid, keys);

kfmap.put("allkaifazr",allcounts);

kfmap.put("allkaifazrPageindex", forkaifazrlist);


if(forkaifazrlist!=null){

return "showallsuc";

}

return "fail";

}

js：

function showws(){

zrshopids =$.trim($("#txt_infoid").val());

var isnums = isNaN(zrshopids);

var yanzhengs = /^\s*$/;

var isspaces =yanzhengs.test(zrshopids);

if(isnums){

zrshopids=-1;

}

if(isspaces){

zrshopids = "";

}

if($("#txt_infoid").val().indexOf(".")!=-1){

alert("亲。请输入正确的店铺ID！");

}

else{

$("#showtable tr:not(:first)").remove();

$("#bottompage").html("");

$.post("zrAction!getallDpxx.action",{"pid":pageindex,"zrdpxx.dpxxPyetai":$("#ddl_yetaicate").val().substring(3,7),"zrdpxx.dpxxHtaiztai":$("#ddl_after").val(),"zrdpxx.dpxxZyetai":$("#ddl_yetai").val(),"zrdpxx.dpxxQtaiztai":$("#ddl_before").val(),"zrdpxx.dpxxHtaiztai":$("#ddl_after").val(),"zrdpxx.dpxxSfouzdin":$("#istopno").val(),"tel":$.trim($("#txt_key").val()),"dpidsss":zrshopids,"showwhotel":$("#showwhotel").val()},

function(data){

if(data["zrdxpxxPageindexCount"].length<=0){

alert("没有符合当前条件的数据！");

}

else{

$.each(data["zrdxpxxPageindexCount"],function(i,list){

$tr=$("<tr></tr>");

$td12 =$(" <td align='center' valign='top' style='border-right:0;'><input type='checkbox' name ='row_checkbox' id ='checkDo' value='"+list.dpxxId+"'/></td>");

$td1=$("<td align='center' valign='top'><a href='TransferManager24.1.jsp?dpidsss="+list.dpxxId+"' target='_blank'>"+list.dpxxId+"</a></td>");

$td2 =$("<td align='center' valign='top'>"+list.dpxxFbusjian.substring(0,10)+"</td>");

switch(list.dpxxXxilyuan){

case 1:

$td3 =$("<td align='center' valign='top'>客户</td>");                                                                                                                                                                        
                                                                                                              

break;

case 4:

$td3 =$("<td align='center' valign='top'>外网</td>");

break;

case 2:

$td3 =$("<td align='center' valign='top'>报纸</td>");

break;

case 3:

$td3 =$("<td align='center' valign='top'>扫街</td>");

break;

case 5:

$td3 =$("<td align='center' valign='top'>其它</td>");

break;

}

$td4 =$("<td align='center' valign='top'>"+list.dpxxZyetai+"</td>");

$td5 =$("<td align='center' valign='top'>"+list.dpxxQyu+"</td>");

$td7 =$("<td align='center' valign='top'>"+list.dpxxBti+"</td>");

$td8 =$("<td align='center' valign='top'>"+list.dpxxJtidzhi+"</td>");

$td13=$("<td align='center' valign='top'>"+list.mytel+"</td>");

if(list.dpxxSfouzdin==1){

$td9 =$("<td align='center' valign='top'>是</td>");

}

if(list.dpxxSfouzdin==2){

$td9 =$("<td align='center' valign='top'>否</td>");

}

if(list.dpxxQtaiztai==1){

$td10 =$("<td align='center' valign='top'>显示</td>");

}

if(list.dpxxQtaiztai==2){

$td10 =$("<td align='center' valign='top'>不显示</td>");

}

switch(list.dpxxHtaiztai){

case 1:

$td11 =$("<td align='center' valign='top'>屏蔽</td>");

break;

case 2:

$td11 =$("<td align='center' valign='top' style='color:green'>开发</td>");

break;

case 3:

$td11 =$("<td align='center' valign='top' style='color:blue'>重点</td>");

break;

case 4:

$td11 =$("<td align='center' valign='top' style ='color:red'>售后</td>");

break;

case 5:

$td11 =$("<td align='center' valign='top' style='color:#A757A8'>案例</td>");

break;

}



$tr.append($td1).append($td2).append($td3).append($td4).append($td5).append($td7).append($td8).append($td13).append($td9).append($td10).append($td11).append($td12);

$("#showtable").append($tr);

});

pagesize = data["zrdxpxxAllCount"]%maxresult==0?

parseInt(data["zrdxpxxAllCount"]/maxresult):parseInt(data["zrdxpxxAllCount"]/maxresult)+1;

var $uppage = $("<a href='javascript:go(true)'><<上一页&nbsp;&nbsp&nbsp;&nbsp</a>");

var $span =$("<span style='font-size:12px'>共"+data["zrdxpxxAllCount"]+"条&nbsp;&nbsp第"+pageindex+"页&nbsp;&nbsp总"+pagesize+"页</span>");

var $downpage =$("<a href='javascript:go(false)'>&nbsp;&nbsp&nbsp;&nbsp下一页>>&nbsp;&nbsp&nbsp;&nbsp</a>");

var $select = $("<select onchange='javascript:gotos()' id='gotosid'></select>");

for(var i = 1;i<=pagesize;i++){

$select.append("<option value="+i+">第"+i+"页</option>");

}



$("#bottompage").append($uppage).append($span).append($downpage).append($select);

$("#gotosid").find("option[value='"+pageindex+"']").attr("selected","selected");

}



});

}

}

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