14jqGrid - 一次性加載數據

時間 2021-08-15

標籤 javascript html java json 服務器 ide url code htm blog 欄目 JavaScript 简体版

原文原文鏈接

這個例子告訴咱們如何從服務器上一次性的加載數據。
須要注意的是翻頁功能是禁用的。
javascript

HTML代碼舉例

<html>
  <head>
    <title>jqGrid 實例</title>
  </head>
  <body>
    ···代碼省略···
    <table id="list3"></table> 
    <div id="pager3"></div>
    ···代碼省略···
  </body>
</html>

javascript代碼舉例

$(function(){
  pageInit();
});
function pageInit(){
  jQuery("#list3").jqGrid(
      {
        url : ctx+'/JSONData',
        datatype : "json",
        colNames : [ 'Inv No', 'Date', 'Client', 'Amount', 'Tax','Total', 'Notes' ],
        colModel : [ 
                     {name : 'id',index : 'id',width : 60,sorttype : "int"}, 
                     {name : 'invdate',index : 'invdate',width : 90,sorttype : "date"}, 
                     {name : 'name',index : 'name',width : 100}, 
                     {name : 'amount',index : 'amount',width : 80,align : "right",sorttype : "float"}, 
                     {name : 'tax',index : 'tax',width : 80,align : "right",sorttype : "float"}, 
                     {name : 'total',index : 'total',width : 80,align : "right",sorttype : "float"}, 
                     {name : 'note',index : 'note',width : 150,sortable : false} 
                   ],
        rowNum : 20,
        rowList : [ 10, 20, 30 ],
        pager : '#pager3',
        sortname : 'id',
        viewrecords : true,
        sortorder : "desc",
        loadonce : true,
        caption : "Load Once Example"
      });
}

java servlet代碼舉例

public class JSONData extends HttpServlet {
  private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public JSONData() {
        super();
        // TODO Auto-generated constructor stub
    }

  @Override
  protected void doGet(HttpServletRequest req, HttpServletResponse resp)
      throws ServletException, IOException {
    // TODO Auto-generated method stub
    doPost(req,resp);
  }

  /**
   * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
   */
  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
    String jsondata = "{\"page\":\"1\"," +
        "      \"total\":2," +
        "      \"records\":\"13\"," +
        "      \"rows\":" +
        "          [" +
        "            {" +
        "              \"id\":\"13\"," +
        "              \"cell\":" +
        "                  [\"13\",\"2007-10-06\",\"Client 3\",\"1000.00\",\"0.00\",\"1000.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"12\"," +
        "              \"cell\":" +
        "                  [\"12\",\"2007-10-06\",\"Client 2\",\"700.00\",\"140.00\",\"840.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"11\"," +
        "              \"cell\":" +
        "                  [\"11\",\"2007-10-06\",\"Client 1\",\"600.00\",\"120.00\",\"720.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"10\"," +
        "              \"cell\":" +
        "                  [\"10\",\"2007-10-06\",\"Client 2\",\"100.00\",\"20.00\",\"120.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"9\"," +
        "              \"cell\":" +
        "                  [\"9\",\"2007-10-06\",\"Client 1\",\"200.00\",\"40.00\",\"240.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"8\"," +
        "              \"cell\":" +
        "                  [\"8\",\"2007-10-06\",\"Client 3\",\"200.00\",\"0.00\",\"200.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"7\"," +
        "              \"cell\":" +
        "                  [\"7\",\"2007-10-05\",\"Client 2\",\"120.00\",\"12.00\",\"134.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"6\"," +
        "              \"cell\":" +
        "                  [\"6\",\"2007-10-05\",\"Client 1\",\"50.00\",\"10.00\",\"60.00\",\"\"]" +
        "            }," +
        "            {" +
        "              \"id\":\"5\"," +
        "              \"cell\":" +
        "                  [\"5\",\"2007-10-05\",\"Client 3\",\"100.00\",\"0.00\",\"100.00\",\"no tax at all\"]" +
        "            }," +
        "            {" +
        "              \"id\":\"4\"," +
        "              \"cell\":" +
        "                  [\"4\",\"2007-10-04\",\"Client 3\",\"150.00\",\"0.00\",\"150.00\",\"no tax\"]" +
        "            }" +
        "          ]," +
        "      \"userdata\":{\"amount\":3220,\"tax\":342,\"total\":3564,\"name\":\"Totals:\"}" +
        "    }";
    response.getWriter().write(jsondata);
  }

}