Java分页功能实现

最新推荐文章于 2024-01-11 15:53:54 发布

原创最新推荐文章于 2024-01-11 15:53:54 发布 · 491 阅读

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代码是用Maven管理的

Controller代码

package cn.masterYi.controller;

import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import cn.masterYi.util.JsonResult;

public abstract  class BaseController {
	@ExceptionHandler(Exception.class)
    @ResponseBody
    public JsonResult exceptionHandle(Exception e) {
        //参数e就是被捕获到的异常对�?
        e.printStackTrace();
        System.out.println("exceptionHandle");
        return new JsonResult(e);
    }
}

package cn.masterYi.controller;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.annotation.Resource;

import cn.masterYi.entity.pageList;
import cn.masterYi.service.pagesList;
import cn.masterYi.util.JsonResult;

@Controller
@RequestMapping("/page")
public class pagingController extends BaseController {
	@Resource
    private pagesList pageslist;
    @ResponseBody
	@RequestMapping(value = "/actions.do")
	public Object paging(int pagenum) {
		List<pageList> list = pageslist.listpage(pagenum);
		int nums = pageslist.pagenum();
		Map<Object, Object> map = new HashMap<Object, Object>();
		map.put("list", (Object) list);
		map.put("num", nums);
		return new JsonResult(map);
	}
}

Java实体类代码

package cn.masterYi.entity;

public class pageList {
	private String spdh;
	private String yspdh;
	private String cglx;
	private String spzt;
	private String dqspr;
	private String date;
	
	
	
	public pageList(String spdh, String yspdh, String cglx, String spzt, String dqspr, String date) {
		this.spdh = spdh;
		this.yspdh = yspdh;
		this.cglx = cglx;
		this.spzt = spzt;
		this.dqspr = dqspr;
		this.date = date;
	}
	public pageList() {
	}
	public String getSpdh() {
		return spdh;
	}
	public void setSpdh(String spdh) {
		this.spdh = spdh;
	}
	public String getYspdh() {
		return yspdh;
	}
	public void setYspdh(String yspdh) {
		this.yspdh = yspdh;
	}
	public String getCglx() {
		return cglx;
	}
	public void setCglx(String cglx) {
		this.cglx = cglx;
	}
	public String getSpzt() {
		return spzt;
	}
	public void setSpzt(String spzt) {
		this.spzt = spzt;
	}
	public String getDqspr() {
		return dqspr;
	}
	public void setDqspr(String dqspr) {
		this.dqspr = dqspr;
	}
	public String getDate() {
		return date;
	}
	public void setDate(String date) {
		this.date = date;
	}
	@Override
	public String toString() {
		return "pageList [spdh=" + spdh + ", yspdh=" + yspdh + ", cglx=" + cglx + ", spzt=" + spzt + ", dqspr=" + dqspr
				+ ", date=" + date + "]";
	}
	
}

package cn.masterYi.util;
import java.io.Serializable;

public class JsonResult implements Serializable{

	private static final long serialVersionUID = 812376774103405857L;
	private int state;
	private Object data;
	private String message;
	
	public static final int SUCCESS=0;
	public static final int ERROR=1;
	
	
	public JsonResult(){}
	
	public JsonResult(int state,Throwable e){
		this.state=state;
		data=null;
		message=e.getMessage();
	}
	
	public JsonResult(int state, Object data, String message) {
		this.state = state;
		this.data = data;
		this.message = message;
	}
	public JsonResult(Throwable e){
		state=ERROR;
		data=null;
		message=e.getMessage();
	}
	public JsonResult(Object data){
		state=SUCCESS;
		this.data=data;
		message="";
	}

	public int getState() {
		return state;
	}

	public void setState(int state) {
		this.state = state;
	}

	public Object getData() {
		return data;
	}

	public void setData(Object data) {
		this.data = data;
	}

	public String getMessage() {
		return message;
	}

	public void setMessage(String message) {
		this.message = message;
	}

	@Override
	public String toString() {
		return "JsonResult [state=" + state + ", data=" + data + ", message=" + message + "]";
	}
}

接口类

package cn.masterYi.service;

import java.util.List;

import cn.masterYi.entity.pageList;

public interface pagesList {

    List<pageList> listpage(int pagenum);
    int pagenum();
}

业务实现类

package cn.masterYi.service;

import java.util.ArrayList;
import java.util.List;
import org.springframework.stereotype.Service;

import cn.masterYi.entity.pageList;

@Service("pageList")
public class pagesListImpl implements pagesList {
	List<pageList> pageing;
	public List<pageList> listpage(int pagenum) {
		pageing = new ArrayList<pageList>();
		List<pageList> pageings = new ArrayList<pageList>();
		System.out.println("123eerr");
		for (int i = 1; i <60; i++) {
			pageing.add(new pageList("A000"+i,"A0000"+i,"采购付款","待审批","高**","2017-07-20"));
		}
		if((pageing.size()-pagenum*3)>0){
		for(int i=(pagenum-1)*3;i<pagenum*3;i++){
			pageings.add(pageing.get(i));
		}
		return pageings;
		}else{
			for(int i=(pagenum-1)*3;i<pageing.size();i++){
				pageings.add(pageing.get(i));
			}	
		}
	
		return pageings;
	}

	public int pagenum() {
		
		return pageing.size();
	}
	
}

前端代码

js代码

 window.onload = function (){
            var pagenum=1;
            $.ajax({
                url:'notebook/actions.do?pagenum=1',
                type:'get',
                dataType: 'json',
                success: function(ary){
                    var datas = ary.data;
                    for(var k=1;k<=(datas.num+1)/3;k++){               //通过循环增加按钮
                         $('#map-result').append(
                          '<button class="btn btn-success" id="page_'+k+'">'+k+'</button>'//
                          )
                     }
                      for(var i=0; i<datas.list.length; i++){                //第一次进入需要加载3条数据
                        var obj = datas.list[i];
                        $('#map2').append(
                            '<div id=style="margin-bottom:40px;margin-top: 80px; ">'+'<p>'+'审批单号:  <span><a href="http://www.baidu.com">'+obj.spdh+'</a></span></p>'+'<br>'+'<p>'+'原始单据号: '+obj.yspdh+'<br><br>'+'单据类型: '+
                            obj.cglx+'</p>'+'<br>'+'<p>'+'审批状态:  '+obj.spzt+'   当前审批人: '+obj.dqspr+'</p>'+'<br>'+'<p>'+
                            '提交时间:  '+obj.date+'</p>'+'</div>'+'<hr>');  
                    }
            }
        })
             document.body.onclick = function(event){    //利用事件冒泡处理找出被点击按钮的id
                        var id = event.target.id;
                        var strs = id.split("_");
                        if(strs[0]=="page"){
                            pagenum=strs[1];
                    $.ajax({
                        url:'notebook/actions.do?pagenum='+pagenum,
                            type:'get',
                            dataType: 'json',
                            success: function(ary){
                                var datas = ary.data;
                                document.getElementById('map2').innerHTML = ""; //清空当前页面的内容
                                for(var j=0; j<datas.list.length; j++){                                  //为当前页面添加新的内容
                                    var obj = datas.list[j];
                                    $('#map2').append(
                                        '<div id=style="margin-bottom:40px;margin-top: 80px; ">'+'<p>'+'审批单号:  <span><a href="http://www.baidu.com">'+obj.spdh+'</a></span></p>'+'<br>'+'<p>'+'原始单据号: '+obj.yspdh+'<br><br>'+'单据类型: '+
                                        obj.cglx+'</p>'+'<br>'+'<p>'+'审批状态:  '+obj.spzt+'   当前审批人: '+obj.dqspr+'</p>'+'<br>'+'<p>'+
                                        '提交时间:  '+obj.date+'</p>'+'</div>'+'<hr>');  
                                }
                            }
                        })  
            		}  
                }
        }

css代码

a{
            color: #000;
        }
        #map2-result{
            margin-top: 60px; 
            margin-left: 40px; 
            margin-bottom:40px; 
            line-height:15px;
            font-family:"等线";
            margin-bottom: 
            style="text-decoration:none; color:#000;"
        }

html代码

<body>
    <div id="map2" style=" font-size: 19px;">
    </div>
    <div  id="map-result" class="" style="text-align:center;">
    </div>
</body>

Java分页功能实现

github项目地址：https://github.com/YiPan007/Netty/tree/master/paging