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Struts2 + MySQL 實現分頁

 

程式碼結構:

 

package com.action;
 
import java.util.List;
import java.util.Map;
 
import com.bean.Pager;
import com.bean.UserInfo;
import com.dao.LendDao;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

 
public class LendAction extends
ActionSupport{ private int pageNow=1; //初始頁為第一頁 private int pageSize=3; //每頁資料為4條,可調節 public String execute() throws Exception{ LendDao dao = new LendDao(); List list = dao.selectLend(pageNow, pageSize); Pager page
= new Pager(pageNow, dao.selectLendSize()); Map session = ActionContext.getContext().getSession(); session.put("userinfo", list); session.put("pageinfo", page); return SUCCESS; } public int getPageNow() {
return pageNow; } public void setPageNow(int pageNow) { this.pageNow = pageNow; } public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } }

 

package com.action;
 
import java.util.List;
import java.util.Map;
 
import com.bean.Pager;
import com.bean.UserInfo;
import com.dao.LendDao;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

 
public class LendAction extends ActionSupport{
        private int pageNow=1;           //初始頁為第一頁
        private int pageSize=3;             //每頁資料為4條,可調節
        
        public String execute() throws Exception{
            LendDao dao = new LendDao();
            
            List list = dao.selectLend(pageNow, pageSize);
            Pager page = new Pager(pageNow, dao.selectLendSize());
            
            Map session = ActionContext.getContext().getSession();
            session.put("userinfo", list);
            session.put("pageinfo", page);
            return SUCCESS;
        }
 
        public int getPageNow() {
            return pageNow;
        }
 
        public void setPageNow(int pageNow) {
            this.pageNow = pageNow;
        }
 
        public int getPageSize() {
            return pageSize;
        }
 
        public void setPageSize(int pageSize) {
            this.pageSize = pageSize;
        }
        
}

 

package com.action;
 
import java.util.List;
import java.util.Map;
 
import com.bean.Pager;
import com.bean.UserInfo;
import com.dao.LendDao;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

 
public class LendAction extends ActionSupport{
        private int pageNow=1;           //初始頁為第一頁
        private int pageSize=3;             //每頁資料為4條,可調節
        
        public String execute() throws Exception{
            LendDao dao = new LendDao();
            
            List list = dao.selectLend(pageNow, pageSize);
            Pager page = new Pager(pageNow, dao.selectLendSize());
            
            Map session = ActionContext.getContext().getSession();
            session.put("userinfo", list);
            session.put("pageinfo", page);
            return SUCCESS;
        }
 
        public int getPageNow() {
            return pageNow;
        }
 
        public void setPageNow(int pageNow) {
            this.pageNow = pageNow;
        }
 
        public int getPageSize() {
            return pageSize;
        }
 
        public void setPageSize(int pageSize) {
            this.pageSize = pageSize;
        }
        
}

 

package com.action;
 
import java.util.List;
import java.util.Map;
 
import com.bean.Pager;
import com.bean.UserInfo;
import com.dao.LendDao;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

 
public class LendAction extends ActionSupport{
        private int pageNow=1;           //初始頁為第一頁
        private int pageSize=3;             //每頁資料為4條,可調節
        
        public String execute() throws Exception{
            LendDao dao = new LendDao();
            
            List list = dao.selectLend(pageNow, pageSize);
            Pager page = new Pager(pageNow, dao.selectLendSize());
            
            Map session = ActionContext.getContext().getSession();
            session.put("userinfo", list);
            session.put("pageinfo", page);
            return SUCCESS;
        }
 
        public int getPageNow() {
            return pageNow;
        }
 
        public void setPageNow(int pageNow) {
            this.pageNow = pageNow;
        }
 
        public int getPageSize() {
            return pageSize;
        }
 
        public void setPageSize(int pageSize) {
            this.pageSize = pageSize;
        }
        
}
package com.action;
 
import java.util.List;
import java.util.Map;
 
import com.bean.Pager;
import com.bean.UserInfo;
import com.dao.LendDao;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

 
public class LendAction extends ActionSupport{
        private int pageNow=1;           //初始頁為第一頁
        private int pageSize=3;             //每頁資料為4條,可調節
        
        public String execute() throws Exception{
            LendDao dao = new LendDao();
            
            List list = dao.selectLend(pageNow, pageSize);
            Pager page = new Pager(pageNow, dao.selectLendSize());
            
            Map session = ActionContext.getContext().getSession();
            session.put("userinfo", list);
            session.put("pageinfo", page);
            return SUCCESS;
        }
 
        public int getPageNow() {
            return pageNow;
        }
 
        public void setPageNow(int pageNow) {
            this.pageNow = pageNow;
        }
 
        public int getPageSize() {
            return pageSize;
        }
 
        public void setPageSize(int pageSize) {
            this.pageSize = pageSize;
        }
        
}

 

package com.action;
 
import java.util.List;
import java.util.Map;
 
import com.bean.Pager;
import com.bean.UserInfo;
import com.dao.LendDao;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

 
public class LendAction extends ActionSupport{
        private int pageNow=1;           //初始頁為第一頁
        private int pageSize=3;             //每頁資料為4條,可調節
        
        public String execute() throws Exception{
            LendDao dao = new LendDao();
            
            List list = dao.selectLend(pageNow, pageSize);
            Pager page = new Pager(pageNow, dao.selectLendSize());
            
            Map session = ActionContext.getContext().getSession();
            session.put("userinfo", list);
            session.put("pageinfo", page);
            return SUCCESS;
        }
 
        public int getPageNow() {
            return pageNow;
        }
 
        public void setPageNow(int pageNow) {
            this.pageNow = pageNow;
        }
 
        public int getPageSize() {
            return pageSize;
        }
 
        public void setPageSize(int pageSize) {
            this.pageSize = pageSize;
        }
        
}

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@taglib prefix="s" uri="/struts-tags"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
  </head>
<body>
    <table border="1" width="599">
        <tr>
            <td valign="top"><jsp:include page="lenduserinfo.jsp"></jsp:include></td>
        </tr>
    
        <tr bgcolor="#E9EDF5" class="font1">
            <td align="right">
                <s:set name="page" value="#session.pageinfo"/>
                    <a href="lendaction?pageNow=1">首頁</a>
                    
                    <s:if test="#page.hasPre">
                        <a href="lendaction?pageNow=<s:property value="#page.pageNow-1"/>">上一頁</a>
                    </s:if>
                    <s:else>
                        <a href="lendaction?pageNow=1">上一頁</a>
                    </s:else>
                    
                    <s:if test="#page.hasNext">
                        <a href="lendaction?pageNow=<s:property value="#page.pageNow+1"/>">下一頁</a>
                    </s:if>
                    <s:else>
                        <a href="lendaction?pageNow=<s:property value="#page.totalPage"/>">下一頁</a>
                    </s:else>
                    
                    <a href="lendaction?pageNow=<s:property value="#page.totalPage"/>">尾頁</a>
            </td>
        </tr>
    </table>
  </body>

</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'success.jsp' starting page</title>
  </head>
  
<body>
    <table border="2">
        <tr>
            <td>userId</td>   
            <td>userName</td>        
            <td>userPassword</td>
        </tr>
           <s:iterator value="#session.userinfo" id="lend">
               <tr>
                   <td><s:property value="#lend.userId" /></td>
                   <td><s:property value="#lend.userName" /></td>
                   <td><s:property value="#lend.userPassword" /></td>
               </tr>
           </s:iterator>
    </table>
  </body>


</html>