在layui中，新的页面怎么获取另一个页面传过来的数据,并可以对数据进行判断，layui中的后台分页（table）。

例如：打开一个新页面的同时，传数据。

layer.open({
    type: 2,
    title: '新增项目',
    shadeClose: false,
    shade: [0.3],
    maxmin: true, //开启最大化最小化按钮
    area: ['900px', '90%'],
    scrollbar: false, //屏蔽滚动条
    content: 'operate.html?type=add&buildingId=' + buildingId + '&businessId=' + businessId
});


=======================================


// 在新的页面： 操作类型：add新增，edit修改，view查看
var operateType = QueryUtils.GetQueryString("type");

switch (operateType) {
    case "add":
        break;
　　case "edit":
        break;
　　case "view":
        break;
}


=======================================

这个是layui中的table分页

table.render({
    elem: '#roomTable',
    url: '/room/json/',
    page: true,
    limit: 20,
    height: 'full-150',
    where: data,
    cols: [[
        {field: 'ROWNUM', fixed: true}
        /*, {field: 'ROOM_NAME', title: '名称',  84}*/
        , {field: 'ROOM_NUM', title: '编号',  100}
        , {field: 'NAME', title: '项目类型',  100}
        , {field: 'ROOM_AREA', title: '面积(㎡)',  100}
        , {field: 'UNIT_NAME', title: '单元',  80}
        , {field: 'FLOOR_NAME', title: '楼层',  80}
        , {field: 'PROPERTY_RIGHT_TYPE', title: '产权所属', templet: '#prorigTpl',  120}
        , {field: 'ROOM_INFO', title: '备注',  100}
        , {field: 'CREATE_NAME', title: '创建人',  120}
        , {field: 'CREATE_DATE', title: '创建时间',  180, align: 'center'}
        , {field: 'IS_OPEN', title: '是否开启', templet: '#statusTpl',  100, align: 'center'}
        , {fixed: 'right', title: '操作',  360, align: 'center', toolbar: '#barDemo'}
    ]]
});



controller层：


 /**
  * 返回list 列表
  */
  @RequestMapping(value = "/json")
  @ResponseBody
  public Object json(Page page) {
  PageData pd = new PageData();
  Map<String, Object> map = new HashMap<String, Object>();
  List<PageData> varList;
      String datalayui = null;
//获取当前登录用户
Subject currentUser = SecurityUtils.getSubject();
Session session = currentUser.getSession();
User user = (User) session.getAttribute(Const.SESSION_USER);
      try {
       //测试分页 导出为layui的json数据
       pd = this.getPageData();
   pd.put("USER_ID", user.getUSER_ID());
       getPData(page, pd);//必填 2参
       varList = roomService.list(page);    //列出Building列表
       datalayui = getLData(page, varList);//必填 3参
      } catch (Exception e) {
       logger.error(e.toString(), e);
      } finally {
       logAfter(logger);
      }
          return datalayui;
}



这个是page包装类：



package com.fh.entity;

import com.fh.util.Const;
import com.fh.util.PageData;
import com.fh.util.Tools;

public class Page {
   
   private int showCount; //每页显示记录数
   private int totalPage;    //总页数
   private int totalResult;   //总记录数
   private int currentPage;   //当前页
   private int currentResult; //当前记录起始索引
   private boolean entityOrField; //true:需要分页的地方，传入的参数就是Page实体；false:需要分页的地方，传入的参数所代表的实体拥有Page属性
   private String pageStr;       //最终页面显示的底部翻页导航，详细见：getPageStr();
   private PageData pd = new PageData();
   

   
   public Page(){
      try {
         this.showCount = Integer.parseInt(Tools.readTxtFile(Const.PAGE));
      } catch (Exception e) {
         this.showCount = 15;
      }
   }
   
   public int getTotalPage() {
      if(totalResult%showCount==0)
         totalPage = totalResult/showCount;
      else
         totalPage = totalResult/showCount+1;
      return totalPage;
   }
   
   public void setTotalPage(int totalPage) {
      this.totalPage = totalPage;
   }
   
   public int getTotalResult() {
      return totalResult;
   }
   
   public void setTotalResult(int totalResult) {
      this.totalResult = totalResult;
   }
   
   public int getCurrentPage() {
      if(currentPage<=0)
         currentPage = 1;
      if(currentPage>getTotalPage())
         currentPage = getTotalPage();
      return currentPage;
   }
   
   public void setCurrentPage(int currentPage) {
      this.currentPage = currentPage;
   }
   
   public String getPageStr() {
      StringBuffer sb = new StringBuffer();
      if(totalResult>0){
         sb.append("    <ul>
");
         if(currentPage==1){
            sb.append("    <li><a>共<font color=red>"+totalResult+"</font>条</a></li>
");
            sb.append("    <li><input type="number" value="" id="toGoPage" style="50px;text-align:center;float:left" placeholder="页码"/></li>
");
            sb.append("    <li style="cursor:pointer;"><a onclick="toTZ();"  class="btn btn-mini btn-success">跳转</a></li>
");
            sb.append("    <li><a>首页</a></li>
");
            sb.append("    <li><a>上页</a></li>
");
         }else{
            sb.append("    <li><a>共<font color=red>"+totalResult+"</font>条</a></li>
");
            sb.append("    <li><input type="number" value="" id="toGoPage" style="50px;text-align:center;float:left" placeholder="页码"/></li>
");
            sb.append("    <li style="cursor:pointer;"><a onclick="toTZ();"  class="btn btn-mini btn-success">跳转</a></li>
");
            sb.append("    <li style="cursor:pointer;"><a onclick="nextPage(1)">首页</a></li>
");
            sb.append("    <li style="cursor:pointer;"><a onclick="nextPage("+(currentPage-1)+")">上页</a></li>
");
         }
         int showTag = 5;//分页标签显示数量
         int startTag = 1;
         if(currentPage>showTag){
            startTag = currentPage-1;
         }
         int endTag = startTag+showTag-1;
         for(int i=startTag; i<=totalPage && i<=endTag; i++){
            if(currentPage==i)
               sb.append("<li><a><font color='#808080'>"+i+"</font></a></li>
");
            else
               sb.append("    <li style="cursor:pointer;"><a onclick="nextPage("+i+")">"+i+"</a></li>
");
         }
         if(currentPage==totalPage){
            sb.append("    <li><a>下页</a></li>
");
            sb.append("    <li><a>尾页</a></li>
");
         }else{
            sb.append("    <li style="cursor:pointer;"><a onclick="nextPage("+(currentPage+1)+")">下页</a></li>
");
            sb.append("    <li style="cursor:pointer;"><a onclick="nextPage("+totalPage+")">尾页</a></li>
");
         }
         sb.append("    <li><a>第"+currentPage+"页</a></li>
");
         sb.append("    <li><a>共"+totalPage+"页</a></li>
");
         
         
         sb.append("    <li><select title='显示条数' style="55px;float:left;" onchange="changeCount(this.value)">
");
         sb.append("    <option value='"+showCount+"'>"+showCount+"</option>
");
         sb.append("    <option value='10'>10</option>
");
         sb.append("    <option value='20'>20</option>
");
         sb.append("    <option value='30'>30</option>
");
         sb.append("    <option value='40'>40</option>
");
         sb.append("    <option value='50'>50</option>
");
         sb.append("    <option value='60'>60</option>
");
         sb.append("    <option value='70'>70</option>
");
         sb.append("    <option value='80'>80</option>
");
         sb.append("    <option value='90'>90</option>
");
         sb.append("    <option value='99'>99</option>
");
         sb.append("    </select>
");
         sb.append("    </li>
");
         
         
         
         sb.append("</ul>
");
         sb.append("<script type="text/javascript">
");
         
         //换页函数
         sb.append("function nextPage(page){");
         sb.append(" top.jzts();");
         sb.append("    if(true && document.forms[0]){
");
         sb.append("       var url = document.forms[0].getAttribute("action");
");
         sb.append("       if(url.indexOf('?')>-1){url += "&"+(entityOrField?"currentPage":"page.currentPage")+"=";}
");
         sb.append("       else{url += "?"+(entityOrField?"currentPage":"page.currentPage")+"=";}
");
         sb.append("       url = url + page + "&" +(entityOrField?"showCount":"page.showCount")+"="+showCount+"";
");
         sb.append("       document.forms[0].action = url;
");
         sb.append("       document.forms[0].submit();
");
         sb.append("    }else{
");
         sb.append("       var url = document.location+'';
");
         sb.append("       if(url.indexOf('?')>-1){
");
         sb.append("          if(url.indexOf('currentPage')>-1){
");
         sb.append("             var reg = /currentPage=\d*/g;
");
         sb.append("             url = url.replace(reg,'currentPage=');
");
         sb.append("          }else{
");
         sb.append("             url += "&"+(entityOrField?"currentPage":"page.currentPage")+"=";
");
         sb.append("          }
");
         sb.append("       }else{url += "?"+(entityOrField?"currentPage":"page.currentPage")+"=";}
");
         sb.append("       url = url + page + "&" +(entityOrField?"showCount":"page.showCount")+"="+showCount+"";
");
         sb.append("       document.location = url;
");
         sb.append("    }
");
         sb.append("}
");
         
         //调整每页显示条数
         sb.append("function changeCount(value){");
         sb.append(" top.jzts();");
         sb.append("    if(true && document.forms[0]){
");
         sb.append("       var url = document.forms[0].getAttribute("action");
");
         sb.append("       if(url.indexOf('?')>-1){url += "&"+(entityOrField?"currentPage":"page.currentPage")+"=";}
");
         sb.append("       else{url += "?"+(entityOrField?"currentPage":"page.currentPage")+"=";}
");
         sb.append("       url = url + "1&" +(entityOrField?"showCount":"page.showCount")+"="+value;
");
         sb.append("       document.forms[0].action = url;
");
         sb.append("       document.forms[0].submit();
");
         sb.append("    }else{
");
         sb.append("       var url = document.location+'';
");
         sb.append("       if(url.indexOf('?')>-1){
");
         sb.append("          if(url.indexOf('currentPage')>-1){
");
         sb.append("             var reg = /currentPage=\d*/g;
");
         sb.append("             url = url.replace(reg,'currentPage=');
");
         sb.append("          }else{
");
         sb.append("             url += "1&"+(entityOrField?"currentPage":"page.currentPage")+"=";
");
         sb.append("          }
");
         sb.append("       }else{url += "?"+(entityOrField?"currentPage":"page.currentPage")+"=";}
");
         sb.append("       url = url + "&" +(entityOrField?"showCount":"page.showCount")+"="+value;
");
         sb.append("       document.location = url;
");
         sb.append("    }
");
         sb.append("}
");
         
         //跳转函数 
         sb.append("function toTZ(){");
         sb.append("var toPaggeVlue = document.getElementById("toGoPage").value;");
         sb.append("if(toPaggeVlue == ''){document.getElementById("toGoPage").value=1;return;}");
         sb.append("if(isNaN(Number(toPaggeVlue))){document.getElementById("toGoPage").value=1;return;}");
         sb.append("nextPage(toPaggeVlue);");
         sb.append("}
");
         sb.append("</script>
");
      }
      pageStr = sb.toString();
      return pageStr;
   }
   
   public void setPageStr(String pageStr) {
      this.pageStr = pageStr;
   }
   
   public int getShowCount() {
      return showCount;
   }
   
   public void setShowCount(int showCount) {
      
      this.showCount = showCount;
   }
   
   public int getCurrentResult() {
      currentResult = (getCurrentPage()-1)*getShowCount();
      if(currentResult<0)
         currentResult = 0;
      return currentResult;
   }
   
   public void setCurrentResult(int currentResult) {
      this.currentResult = currentResult;
   }
   
   public boolean isEntityOrField() {
      return entityOrField;
   }
   
   public void setEntityOrField(boolean entityOrField) {
      this.entityOrField = entityOrField;
   }
   
   public PageData getPd() {
      return pd;
   }

   public void setPd(PageData pd) {
      this.pd = pd;
   }



这个是：PageData类：



import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;

public class PageData extends HashMap implements Map{
   
   private static final long serialVersionUID = 1L;
   
   Map map = null;
   HttpServletRequest request;
   
   public PageData(HttpServletRequest request){
      this.request = request;
      Map properties = request.getParameterMap();
      Map returnMap = new HashMap(); 
      Iterator entries = properties.entrySet().iterator(); 
      Entry entry;
      String name = "";  
      String value = "";  
      while (entries.hasNext()) {
         entry = (Entry) entries.next();
         name = (String) entry.getKey(); 
         Object valueObj = entry.getValue(); 
         if(null == valueObj){ 
            value = ""; 
         }else if(valueObj instanceof String[]){ 
            String[] values = (String[])valueObj;
            for(int i=0;i<values.length;i++){ 
                value = values[i] + ",";
            }
            value = value.substring(0, value.length()-1); 
         }else{
            value = valueObj.toString(); 
         }
         returnMap.put(name, value); 
      }
      map = returnMap;
   }
   
   public PageData() {
      map = new HashMap();
   }
   
   @Override
   public Object get(Object key) {
      Object obj = null;
      if(map.get(key) instanceof Object[]) {
         Object[] arr = (Object[])map.get(key);
         obj = request == null ? arr:(request.getParameter((String)key) == null ? arr:arr[0]);
      } else {
         obj = map.get(key);
      }
      return obj;
   }
   
   public String getString(Object key) {
      return (String)get(key);
   }
   
   @SuppressWarnings("unchecked")
   @Override
   public Object put(Object key, Object value) {
      return map.put(key, value);
   }
   
   @Override
   public Object remove(Object key) {
      return map.remove(key);
   }

   public void clear() {
      map.clear();
   }

   public boolean containsKey(Object key) {
      // TODO Auto-generated method stub
      return map.containsKey(key);
   }

   public boolean containsValue(Object value) {
      // TODO Auto-generated method stub
      return map.containsValue(value);
   }

   public Set entrySet() {
      // TODO Auto-generated method stub
      return map.entrySet();
   }

   public boolean isEmpty() {
      // TODO Auto-generated method stub
      return map.isEmpty();
   }

   public Set keySet() {
      // TODO Auto-generated method stub
      return map.keySet();
   }

   @SuppressWarnings("unchecked")
   public void putAll(Map t) {
      // TODO Auto-generated method stub
      map.putAll(t);
   }

   public int size() {
      // TODO Auto-generated method stub
      return map.size();
   }

   public Collection values() {
      // TODO Auto-generated method stub
      return map.values();
   }
   
}



这个是：组装：getPData(page, pd);//必填 2参


import com.fh.entity.Page;
import com.fh.entity.system.User;
import com.fh.util.*;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import javax.xml.crypto.Data;
import java.util.List;

public class GetDatalayui {
    protected static Logger logger = Logger.getLogger(GetDatalayui.class);
    public static void getPData(Page page, PageData pd) {
        //分页暂时设置状态
        page.setShowCount(Integer.parseInt(pd.get("limit").toString()));
        page.setCurrentPage(Integer.parseInt(pd.get("page").toString()));
        page.setPd(pd);
    }

    public static String getLData(Page page, List<PageData> varList) {
        String start="{"code":0,"msg":"","count":" +page.getTotalResult()+","data":";
        String end="}";
        //返回layui table接收的json数据
        String datalayui = null;
        if (varList != null && varList.size() > 0) {
            for (int i = 0; i < varList.size(); i++) {
                varList.get(i).put("ROWNUM", (page.getCurrentPage() - 1) * 10 + i + 1);
            }
        }
        datalayui= JSONHelper.array2json(varList);
        datalayui=start+datalayui+end;
        return datalayui;
    }
    public static String getusername(){
        //获取当前登录用户
        Subject currentUser = SecurityUtils.getSubject();
        Session session = currentUser.getSession();
        User user = (User) session.getAttribute(Const.SESSION_USER);
        return user.getUSERNAME();
    }

    public static int getPageTotal(int num,int pageCount,Page page){
        page.setTotalResult(num+pageCount);
        return num+pageCount;
    }
}









   














        

	      

	    

	  

	  

	    
      
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          原文地址：https://www.cnblogs.com/songyinan/p/8574035.html