1、用datagrid 做分页显示, 依据API样例,最终解决。废话不说,datagrid分页 有一个附加的分页控件 通过在datagrid中设置pagination:true 就会显示分页 当请求是 后台会通过 获取page 获取当前页 依据rows每页显示条数
返回格式 {"total":486,"rows":[{"age":10,"email":"lqi@sina.com","id":1,"name":"张三","sex":"男"}]}
total 总条数不能改 rows 数据 查询出来的list
2、数据库数据
3、看效果如图:
4、html代码
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> <link rel="stylesheet" type="text/css" href="css/themes/default/easyui.css"> <link rel="stylesheet" type="text/css" href="css/demo.css"> <link rel="stylesheet" type="text/css" href="css/themes/icon.css"> <script type="text/javascript" src="js/jquery.min.js"></script> <script type="text/javascript" src="js/jquery.easyui.min.js"></script> <script type="text/javascript" src="js/easyui-lang-zh_CN.js"></script> </head> <body> <table id="dg" class="easyui-datagrid" style="100%;"> </table> <script type="text/javascript"> $('#dg').datagrid({ url:'http://localhost:8080/easyui/TestData',//数据请求地址 toolbar:'#toolbar',// 数据网格工具栏 比方加入 改动 pagination:true,//分页显示 fitColumns:true,//自己主动适应宽度 autoRowHeight:true,//自己主动行高度 loadMsg:'正在载入数据请稍后...', nowrap:true,//设置为true 有利于提高性能 idField:'id',//字段标识 rownumbers:true,//显示行号 singleSelect:true,//仅仅同意选择一行 //pageNumber:1,//初始化页面数量 pageSize:20,//初始化显示条数 pageList:[20,40,60],//分页列表 columns:[[ {field:'id',title:'id',100}, {field:'name',title:'name',100}, {field:'email',title:'email',100,align:'center'} ]] }); /* 这里多多两句通过例如以下參数可获取一些分页数据 var opts=$('#dg').datagrid('options'); //获取当前页 var page_Number = opts.pageNumber; //pageNumber为datagrid的当前页码 //获取每页显示的条数 var page_Size = opts.pageSize; */ </script> </body> </html>
import java.io.IOException; import java.io.Writer; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sf.json.JSONArray; import net.sf.json.JSONObject; /** * Servlet implementation class TestData */ public class TestData extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public TestData() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse * response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doPost(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse * response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("application/json"); response.setCharacterEncoding("UTF-8"); response.setHeader("Cache-Control", "no-cache"); // 获取前台页数 int page = Integer.parseInt(request.getParameter("page")); // 获取前台每页显示条数 int row = Integer.parseInt(request.getParameter("rows")); List<Userinfo> list = JDBCUtil.query(page, row); Map<String, Object> jsonMap = new HashMap<String, Object>();// 定义map jsonMap.put("total", JDBCUtil.queryCount());// total键 存放总记录数。必须的 jsonMap.put("rows", list);// rows键 存放每页记录 list // 格式化result 一定要是JSONObject String result = JSONObject.fromObject(jsonMap).toString(); System.out.println(result); Writer out = response.getWriter(); out.write(result); } }
源代码下载地址:http://download.csdn.net/download/itlqi/8868529