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用javabean分页显示从数据库中查找的信

发布时间: 2012-01-26 19:40:46 作者: rapoo

用javabean分页显示从数据库中查找的信息报错
page_sep.jsp:

<%@ page contentType="text/html; charset=gb2312"%>
<%@ page import="java.util.Vector" %>
<%@ page import="java.lang.*" %>
<%@ page import="wu.bean.BeanArticlePage" %>
<%@ page import="wu.bean.article" %>
<jsp:useBean id="page_sep" class=wu.bean.BeanArticlePage scope="session"></jsp:useBean>
<%
int intPageSize=4;//每页显示的记录数
int currPageBegin=0;//起始记录的索引
int intPageConut=0;//总页数
int intPage=0;//待显示页码
String strPage=null;//用户请求页码
%>

<%
article art=new article();

Vector<article> vector=new Vector<article>();

vector=page_sep.getResultSet();

strPage=request.getParameter("pagenumber");//pagenumber

if(strPage==null){

intPage=1;

}else{

intPage=Integer.parseInt(strPage);

if(intPage<1)

intPage=1;
}

//
intPageConut=(vector.size()+intPageSize-1)/intPageSize;

//调整带显示的页码
if(intPage>intPageConut)

intPage=intPageConut;

//计算每一页的起始记录索引

currPageBegin=intPage*intPageSize-intPageSize;

%>
<table align=center border=1 cellspacing=0 width=90%>

<tr>
<td align=center>作者</td>
<td align=center>标题</td>
<td align=center>类容</td>
</tr>
<%
for(int i=currPageBegin;i<intPage*intPageSize&&i<vector.size();i++)
{

art=(article)vector.elementAt(i);
%>
<tr bgcolor="#f0ffff">
<td align=center><font size=2><%=art.getUsername() %></font></td>
<td align=center><font size=2><%=art.getTitle() %></font></td>
<td align=center><font size=2><%=art.getContent() %></font></td>
</tr>
<%
}
%>
</table>

BeanArticlePage.java
:
package wu.bean;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;

import wu.JDBC.ContantFinal;
import wu.JDBC.LoginAccess;
import wu.JDBC.SqlServerConn;

public class BeanArticlePage {

public Vector<article> getResultSet(){

LoginAccess la=new LoginAccess(new SqlServerConn());//SQLServer数据库的链接

try {

ResultSet rs=la.SetAll(new ContantFinal().artcle);//从表artcle中查找所有信息

Vector<article> vector=new Vector<article>();


while(rs.next()){

article ar=new article();

ar.setArticleID(rs.getInt("articleID"));

ar.setUsername(rs.getString("username"));

ar.setTitle(rs.getString("title"));

ar.setContent(rs.getString("content"));

vector.addElement(ar);

System.out.println("success");
}

System.out.println("success");

return vector;


} catch (SQLException e) {

e.printStackTrace();

la.Close();
}

return null;

}

}

article.java

package wu.bean;

public class article {

public int articleID=0;

public String username=null;

public String title=null;

public String content=null;





public int getArticleID() {
return articleID;
}

public void setArticleID(int articleID) {
this.articleID = articleID;
}

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}

public String getTitle() {
return title;
}

public void setTitle(String title) {
this.title = title;
}

public String getContent() {
return content;
}

public void setContent(String content) {
this.content = content;
}



}




[解决办法]
test.jsp(6,34),这个jsp的第六行第34列需要引号,你的没有引号所以报这个错误了,仔细检查检查。

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