grid.js
Ext.onReady(function() {
var gridStore = new Ext.data.Store({
proxy: new Ext.data.HttpProxy({
url: 'grid.asp'
}),
reader: new Ext.data.JsonReader({
root: 'data',
totalProperty: 'totalCount',
idProperty: 'id'
},[
{name: 'id',mapping:'id'},
{name: 'name',mapping: 'name'},
{name: 'email',mapping: 'email'},
{name: 'age',mapping: 'age'},
]),
baseParams:{
start:0,
limit:5
}
});
gridStore.load();
var colModel = new Ext.grid.ColumnModel([
{id: 'userid',header: '用户号',dataIndex: 'id',sortable: true,hidden:true},
{header: '姓名',dataIndex: 'name',sortable: true,width: 80},
{header: '邮箱',dataIndex: 'email',width: 150},
{header: '年龄',dataIndex: 'age',width: 60},
]);
var gridPanel = new Ext.grid.GridPanel({
id: 'oprPanel',
title: '用户信息',
frame: true,
//iconCls: 'T104',
border: true,
columnLines: true,
stripeRows: true,
autoHeight: true,
store: gridStore,
sm: new Ext.grid.RowSelectionModel({singleSelect: true}),
cm: colModel,
collapsible: true,
//plugins: oprRowExpander,
loadMask: {
msg: '正在加载用户信息列表......'
},
bbar: new Ext.PagingToolbar({
store: gridStore,
pageSize: 5,
displayInfo: true,
displayMsg: '显示第{0}-{1}条记录，共{2}条记录',
emptyMsg: '没有找到符合条件的记录'
})
});
var viewport = new Ext.Viewport({
layout: "fit",
items: gridPanel
});
});
grid.html
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> <link rel="stylesheet" type="text/css" href="ext/resources/css/ext-all.css" /> <script type="text/javascript" src="ext/ext-base.js"></script> <script type="text/javascript" src="ext/ext-all.js"></script> <script type="text/javascript" src="js/grid.js"></script> </head> <body> <div id="div"></div> </body> </html>
Data.java
package com.lin.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table
public class Data {
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Id
private int id;
@Column(length=20)
private String name;
@Column(length=30)
private String email;
@Column
private int age;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Data(int id, String name, String email, int age) {
super();
this.id = id;
this.name = name;
this.email = email;
this.age = age;
}
public Data() {
super();
}
}
DataDao.java
package com.lin.dao;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import com.lin.model.Data;
@Repository
public class DataDao {
private SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
@Autowired
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
@Transactional
public List<Data> getPageData(int start, int limit) {
Session session = sessionFactory.getCurrentSession();
Query query = session.createQuery("from Data");
query.setFirstResult(start);
query.setMaxResults(limit);
System.out.println("size ================ "+query.list().size());
return query.list();
}
@Transactional
public int getTotal(){
Session session = sessionFactory.getCurrentSession();
Query query = session.createQuery("from Data");
return query.list().size();
}
}
GridAction.java
package com.lin.action;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONObject;
import org.apache.struts2.ServletActionContext;
import org.springframework.beans.factory.annotation.Autowired;
import com.lin.dao.DataDao;
import com.lin.model.Data;
import com.opensymphony.xwork2.ActionSupport;
public class GridAction extends ActionSupport {
@Autowired
private DataDao dao;
private int start;
private int limit;
public int getStart() {
return start;
}
public void setStart(int start) {
this.start = start;
}
public int getLimit() {
return limit;
}
public void setLimit(int limit) {
this.limit = limit;
}
@Override
public String execute() throws Exception {
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/json; charset=utf-8");
PrintWriter pw = response.getWriter();
List list = dao.getPageData(start, limit);
Map<String,Object> map = new LinkedHashMap<String, Object>();
map.put("totalCount", dao.getTotal());
map.put("data",list);
JSONObject json = JSONObject.fromObject(map);
pw.append(json.toString());
pw.flush();
pw.close();
return NONE;
}
}
效果:
数据库：
ext GridPanel分页
时间： 2024-08-28 01:30:23