分页的一种思路是:从数据表中取出所有数据,然后根据分页的要求取出对应的数据。
package thejavabean; import java.io.IOException; import java.io.PrintWriter; import java.sql.SQLException; import java.util.ArrayList; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sf.json.JSONArray; public class Table_info extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { response.setContentType("text/html"); response.setCharacterEncoding("UTF-8"); PrintWriter out = response.getWriter(); String page = request.getParameter("page"); // 当前页数 String rows = request.getParameter("rows"); // 每页显示行数 List<Student> allList=selectAll(); //获取所有数据 int p=Integer.parseInt(page); int r=Integer.parseInt(rows); int begin=(p-1)*r; //当前页开始项 int num=begin; int count=r; List<Student> list=new ArrayList(); System.out.println(); while(count>0&&num<allList.size()){ list.add(allList.get(num)); num++; count--; } int total=selectAll().size(); String json = "{\"total\":"+total+" , \"rows\":"+JSONArray.fromObject(list).toString()+"}"; response.getWriter().write(json.toString()); out.flush(); out.close(); } catch (SQLException e) { e.printStackTrace(); } } public List<Student> selectAll() throws SQLException{ StudentManage sm=new StudentManage(); return sm.selectAll(""); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doGet(request, response); } }
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原文:http://blog.csdn.net/u012116457/article/details/21882515