package taotoa.montao.dao;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
import taotao.montao.dbcon.DBCon;
import taotao.montao.vo.DeptVO;
import taotao.montao.vo.PageVO;
public class TestDAO {
private DBCon db = null;
private PageVO page = new PageVO();
//获取总的信息数
public int getInfoCount()
{
int infoCount = 0;
//获取Connection连接
db = new DBCon();
Connection conn = db.getConnection();
//创建SQL语句
String strSql = "select * from dept";
//执行方法
Statement stmt = null;
ResultSet rs = null;
try
{
stmt = conn.createStatement();
rs = stmt.executeQuery(strSql);
while(rs.next())
{
infoCount++;
}
}catch(Exception ex)
{
ex.printStackTrace();
}finally
{
try {
rs.close();
stmt.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
return infoCount;
}
@SuppressWarnings("unchecked")
public List goupInfo(int nowpager,int pageContent,int pageSizeSize)
{
this.defaultInfo();
page.setNowPage(nowpager);
page.setPageSize(pageSizeSize);
page.setPageCount(pageContent);
List mmm = new ArrayList();
if(nowpager<=0)
{
page.setNowPage(1);
}
int startLine = (page.getNowPage()*page.getPageSize())-page.getPageSize(); //设置起始行
System.out.println("开始的数据: "+startLine);
//返回的结果集对象
List<DeptVO> list = new ArrayList<DeptVO>();
//获取Connection连接
db = new DBCon();
Connection conn = db.getConnection();
//创建SQL语句
String strSql = "select * from dept limit "+startLine+","+page.getPageSize();
System.out.println(strSql);
//执行方法
Statement stmt = null;
ResultSet rs = null;
try
{
stmt = conn.createStatement();
rs = stmt.executeQuery(strSql);
while(rs.next())
{
DeptVO dept = new DeptVO();
dept.setId(rs.getInt("id"));
dept.setName(rs.getString("name"));
dept.setEmail(rs.getString("email"));
dept.setTel(rs.getString("tel"));
dept.setAddress(rs.getString("address"));
list.add(dept);
}
}catch(Exception ex)
{
ex.printStackTrace();
}finally
{
try {
rs.close();
stmt.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
mmm.add(0,list);
mmm.add(1,page);
return mmm;
}
@SuppressWarnings("unchecked")
public List setSize(int pagePageSize)
{
this.defaultInfo();
page.setPageSize(pagePageSize);
if(pagePageSize>=page.getInfoCount())
{
page.setPageCount(page.getInfoCount()/page.getPageSize());
}else
{
page.setPageCount(page.getInfoCount()/page.getPageSize()+1);
}
System.out.println("总的页数: "+page.getPageCount());
List mmm = new ArrayList();
//返回的结果集对象
List<DeptVO> list = new ArrayList<DeptVO>();
//获取Connection连接
db = new DBCon();
Connection conn = db.getConnection();
System.out.println(page.getPageSize());
//创建SQL语句
String strSql = "select * from dept limit 0,"+(page.getPageSize());
System.out.println(strSql);
//执行方法
Statement stmt = null;
ResultSet rs = null;
try
{
stmt = conn.createStatement();
rs = stmt.executeQuery(strSql);
while(rs.next())
{
DeptVO dept = new DeptVO();
dept.setId(rs.getInt("id"));
dept.setName(rs.getString("name"));
dept.setEmail(rs.getString("email"));
dept.setTel(rs.getString("tel"));
dept.setAddress(rs.getString("address"));
list.add(dept);
}
}catch(Exception ex)
{
ex.printStackTrace();
}finally
{
try {
rs.close();
stmt.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
mmm.add(0,list);
mmm.add(1,page);
return mmm;
}
@SuppressWarnings("unchecked")
public List gotoPage(int nowpager,int pageContent,int pageSizeSize)
{
this.defaultInfo();
page.setNowPage(nowpager);
page.setPageSize(pageSizeSize);
page.setPageCount(pageContent);
List mmm = new ArrayList();
if(nowpager>page.getPageCount())
{
page.setNowPage(page.getPageCount()); //如果请求的页面大于总页数
}
int startLine = page.getNowPage()*page.getPageSize()-page.getPageSize(); //设置起始行
//返回的结果集对象
List<DeptVO> list = new ArrayList<DeptVO>();
//获取Connection连接
db = new DBCon();
Connection conn = db.getConnection();
//创建SQL语句
String strSql = "select * from dept limit "+startLine+","+page.getPageSize();
System.out.println(strSql);
//执行方法
Statement stmt = null;
ResultSet rs = null;
try
{
stmt = conn.createStatement();
rs = stmt.executeQuery(strSql);
while(rs.next())
{
DeptVO dept = new DeptVO();
dept.setId(rs.getInt("id"));
dept.setName(rs.getString("name"));
dept.setEmail(rs.getString("email"));
dept.setTel(rs.getString("tel"));
dept.setAddress(rs.getString("address"));
list.add(dept);
}
}catch(Exception ex)
{
ex.printStackTrace();
}finally
{
try {
rs.close();
stmt.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
mmm.add(0,list);
mmm.add(1,page);
return mmm;
}
@SuppressWarnings("unchecked")
public List nextInfo(int nowpager,int pageContent,int pageSizeSize)
{
this.defaultInfo();
page.setNowPage(nowpager);
page.setPageSize(pageSizeSize);
page.setPageCount(pageContent);
List mmm = new ArrayList();
if(nowpager>page.getPageCount())
{
page.setNowPage(page.getPageCount()); //如果请求的页面大于总页数
}
int startLine = (page.getNowPage()-1)*page.getPageSize(); //设置起始行
//返回的结果集对象
List<DeptVO> list = new ArrayList<DeptVO>();
//获取Connection连接
db = new DBCon();
Connection conn = db.getConnection();
//创建SQL语句
String strSql = "select * from dept limit "+startLine+","+page.getPageSize();
System.out.println(strSql);
//执行方法
Statement stmt = null;
ResultSet rs = null;
try
{
stmt = conn.createStatement();
rs = stmt.executeQuery(strSql);
while(rs.next())
{
DeptVO dept = new DeptVO();
dept.setId(rs.getInt("id"));
dept.setName(rs.getString("name"));
dept.setEmail(rs.getString("email"));
dept.setTel(rs.getString("tel"));
dept.setAddress(rs.getString("address"));
list.add(dept);
}
}catch(Exception ex)
{
ex.printStackTrace();
}finally
{
try {
rs.close();
stmt.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
mmm.add(0,list);
mmm.add(1,page);
return mmm;
}
//默认页面显示的数据
@SuppressWarnings("unchecked")
public List defaultInfo()
{
int nowPage = 1;
if (nowPage < 1)
{
nowPage =1;
}
//返回的结果集对象
List<DeptVO> list = new ArrayList<DeptVO>();
//设置页对象
page.setInfoCount(this.getInfoCount()); //设置记录总数
page.setNowPage(nowPage); //设置当前页数
page.setPageSize(5); //设置每页显示数
page.setPageCount(page.getInfoCount()/page.getPageSize()+1); //设置总页数
//获取Connection连接
db = new DBCon();
Connection conn = db.getConnection();
//创建SQL语句
String strSql = "select * from dept limit 0,"+(page.getPageSize());
//执行方法
Statement stmt = null;
ResultSet rs = null;
try
{
stmt = conn.createStatement();
rs = stmt.executeQuery(strSql);
while(rs.next())
{
DeptVO dept = new DeptVO();
dept.setId(rs.getInt("id"));
dept.setName(rs.getString("name"));
dept.setEmail(rs.getString("email"));
dept.setTel(rs.getString("tel"));
dept.setAddress(rs.getString("address"));
list.add(dept);
}
}catch(Exception ex)
{
没有合适的资源?快使用搜索试试~ 我知道了~
Struts2.0+dwr无刷新分页
共27个文件
class:6个
java:6个
sql:2个
4星 · 超过85%的资源 需积分: 0 126 下载量 65 浏览量
2008-06-15
13:36:55
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收藏 453KB RAR 举报
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Struts2.0+dwr无刷新分页
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收起资源包目录
Dwr无刷新分页示例.rar (27个子文件)
Dwr无刷新分页示例
emp.sql 478B
pageDemo
.project 1KB
.settings
org.eclipse.core.resources.prefs 86B
.mymetadata 294B
.myeclipse
src
dbcon.properties 161B
taotao
montao
test
Test.java 222B
vo
PageVO.java 723B
DeptVO.java 727B
dbcon
DBCon.java 934B
service
ServiceMethod.java 992B
taotoa
montao
dao
TestDAO.java 8KB
.classpath 494B
demo
WEB-INF
dwr.xml 878B
web.xml 781B
dwr20.dtd 5KB
lib
dwr2.jar 478KB
classes
dbcon.properties 161B
taotao
montao
test
Test.class 708B
vo
DeptVO.class 1KB
PageVO.class 1KB
dbcon
DBCon.class 1KB
service
ServiceMethod.class 1KB
taotoa
montao
dao
TestDAO.class 7KB
META-INF
MANIFEST.MF 39B
MyJsp.jsp 6KB
main.css 336B
dept.sql 2KB
共 27 条
- 1
资源评论
- zhuojun20122013-11-22谢谢,很好用
- 悟叶随风2014-03-30这个项目和struts2有任何关系吗?明明只有dwr根本没有struts
- flyinsea20082012-04-13确实是无刷新分页,但是只能用于总数据不多的情况下
- celia151175472012-10-25总有错误。。可能是我不会改。。。我是新手- -
- Bin08811030572012-03-18又是用table实现的,惨啦~
lgc2848
- 粉丝: 1
- 资源: 8
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