jgGrid参数说明文档
初始化JqGrid的方法：
function initJQGrid(){ $("#jqgridTable").jqGrid({multiselectWidth : 30,scrollOffset : 20,altRows : false,deepempty : true,sortable : true,hidegrid : false,height : '308',multiselect : true,multiboxonly : true,viewsortcols : [true,'horizontal',false],datatype : 'json',jsonReader : {repeatitems : false},mtype : 'post',url : "${ctx}/babyis/wcbj/txgl/searchTree.action?yunzStart=1&yunzEnd=40",colModel : [{name : 'mmxm',label : '姓名',width : 90,sortable : false},{name : 'zhm',label : '主号',width : 110,sortable : false},{name : 'chmstr',label : '从号',width : 145,sortable : false}],pager : '#jqgridDiv', //分页栏div的idrowNum : 10, //初始行数rowList : [10,15], //每页的行数viewrecords : true,subGrid : true, //子表subGridRowExpanded: function(subgrid_id, row_id) { //下拉，显示详细信息 $("#"+subgrid_id).css("height","190"); //设置下拉详细信息的高度 $("#"+subgrid_id).html("<iframe src='${ctx}/babyis/wcbj/txgl/showYhDetail.action?userId="+row_id+"' width='100%' height='190' frameborder='0'></iframe>"); //加载html},onSelectRow: function(id){ var ids = jQuery("#jqgridTable").jqGrid('getGridParam', 'selarrrow'); //获得所有选中的行 for (var i = 0; i < ids.length; i++) { var rowData = JQuery("#jqgridTable").jqGrid('getRowData',ids[i]); //获得每行的数据 var sjh = rowData.zhm; //行对象.列名 可获得该行该列的值 if(rowData.chmstr != "") { sjh = sjh+","+rowData.chmstr; } var value = rowData.mmxm+"("+sjh+")";window.sxrJson[ids[i]] = value;}var sxr = document.getElementById("sxr");setValueToSxr(sxrJson, sxr);$("#wcbj_txgl_sendAllTxdx").hide();}, onSelectAll: function(aRowids,status){ //checkbox复选框，全选事件 aRowids 所有选中的行id status 头上全选 true为选中 if(status){for (var i = 0; i < aRowids.length; i++) { var rowData = jQuery("#jqgridTable").jqGrid('getRowData',aRowids[i]); var sjh = rowData.zhm; if(rowData.chmstr != "") { sjh = sjh+","+rowData.chmstr; } var value = rowData.mmxm+"("+sjh+")"; window.sxrJson[aRowids[i]] = value;}var sxr = document.getElementById("sxr");setValueToSxr(sxrJson, sxr);$("#wcbj_txgl_sendAllTxdx").hide(); }}});}html页面：
<!--很简单的div--><table id="jqgridTable"></table><div id="jqgridDiv"></div>
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从前台改变jgrid加载时的url，传入相应的参数，后台传入JSon数据重新加载JqGrid
function searchTxYh(urlEn) { jQuery("#jqgridTable").jqGrid("setGridParam", { url: urlEn, //设置表格的url datatype: "json" //设置数据类型 }).trigger("reloadGrid"); }后台数据的组装：
public void searchTree() throws Exception {String mmxm = getParameter("mmxm");String mmdh = getParameter("mmdh");String mcyjStart = getParameter("mcyjStart");String mcyjEnd = getParameter("mcyjEnd");String yunzStart = getParameter("yunzStart");String yunzEnd = getParameter("yunzEnd");StringBuffer sb = new StringBuffer();if(StringUtils.isNotEmpty(mcyjStart)) {sb.append(" and wbda.mcyj >= "+mcyjStart.replaceAll("-", ""));}if(StringUtils.isNotEmpty(mcyjEnd)) {sb.append(" and wbda.mcyj <= "+mcyjEnd.replaceAll("-", ""));}if (StringUtils.isNotEmpty(yunzStart) && StringUtils.isNotEmpty(yunzEnd)) {sb.append(" and wbda.mcyj is not null ");Long d = CalendarUtil.getLongDate();// 得到当前时间String date = CalendarUtil.formatByChar(d, '/', '/');// 根据孕周计算mcyj范围，进行时间比较int bfDay = (Integer.parseInt(yunzStart)-1) * 7;int afDay = Integer.parseInt(yunzEnd)*7;String bfMcyj = CalendarUtil.getDateBefore(date, bfDay);String afMcyj = CalendarUtil.getDateBefore(date, afDay);sb.append(" and wbda.mcyj <= " + CalendarUtil.getLong(bfMcyj) + " and wbda.mcyj >= " + CalendarUtil.getLong(afMcyj));}if (StringUtils.isNotEmpty(mmxm)) {sb.append(" and yhjb.mmxm like '%" + mmxm + "%' ");}int pageNum = 1;if(StringUtils.isNotEmpty(this.getParameter("page")))pageNum = Integer.parseInt(this.getParameter("page"));int pageSize = 10;if(StringUtils.isNotEmpty(this.getParameter("rows")))pageSize = Integer.parseInt(this.getParameter("rows"));Pagination<?> results = this.txglManager.findFztxYhBySql(sb.toString(), mmdh, Integer.valueOf(pageNum), Integer.valueOf(pageSize));JSONArray js = new JSONArray();for (Iterator<?> iter = results.getResults().iterator(); iter.hasNext();) {Object[] result = (Object[]) iter.next();JSONObject objTmp = new JSONObject();String[] yhglsjhs = (result[2] != null) ? String.valueOf(result[2]).split("#") : null;String zhm = (yhglsjhs != null) ? yhglsjhs[0] : "";String chmstr = (yhglsjhs != null && yhglsjhs.length > 1) ? yhglsjhs[1].substring(1) : "";String sjh = (chmstr.equals("")) ? zhm : zhm+","+chmstr;sjh = sjh.replaceAll(",", "_");objTmp.put("id", result[1]+"_"+sjh); //yhjbid+","+sjhobjTmp.put("mmxm", (result[0] != null) ? String.valueOf(result[0]) : "");objTmp.put("zhm", zhm);objTmp.put("chmstr", chmstr);js.add(objTmp);}JSONObject obj = new JSONObject();obj.put("rows", js);obj.put("total", (results.getTotalCount() + pageSize - 1) / pageSize);obj.put("page", pageNum);obj.put("records", results.getTotalCount());obj.put("searchstr", sb.toString());getResponse().setContentType("text/plain");getResponse().setCharacterEncoding("UTF-8");getResponse().getWriter().write(obj.toString());getResponse().getWriter().flush();}由于时间问题，就不整理后台代码了，相信亲们能看懂的。?
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参数说明：
有个很全面的网址：http://blog.csdn.net/homez/archive/2010/07/29/5773675.aspx
给个链接，在这里就不复制粘贴了。