SSM框架整合参考:http://blog.csdn.net/x_iya/article/details/74377566
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>用户管理系统</title>
<link rel="stylesheet" type="text/css" href="static/jquery-easyui-1.5.2/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="static/jquery-easyui-1.5.2/themes/icon.css">
<link rel="stylesheet" type="text/css" href="static/jquery-easyui-1.5.2/demo.css">
<script type="text/javascript" src="static/jquery-easyui-1.5.2/jquery.min.js"></script>
<script type="text/javascript" src="static/jquery-easyui-1.5.2/jquery.easyui.min.js"></script>
<script type="text/javascript" src="static/jquery-easyui-1.5.2/locale/easyui-lang-zh_CN.js"></script>
<script>
var url;
function deletePerson() {
var row = $('#dg').datagrid('getSelected');
if (row) {
$.messager.confirm("系统提示", "您确定要删除这条记录吗?", function (r) {
if (r) {
$.post('deletePerson', {delId: row.id}, function (result) {
if (result.success) {
$.messager.alert("系统提示", "已成功删除这条记录!");
$("#dg").datagrid("reload");
} else {
$.messager.alert("系统提示", result.errorMsg);
}
}, 'json');
}
});
}
}
function newPerson() {
$("#dlg").dialog('open').dialog('setTitle', '添加用户');
$('#fm').form('clear');
url = 'newPerson';
}
function editPerson() {
var row = $('#dg').datagrid('getSelected');
if (row) {
$("#dlg").dialog('open').dialog('setTitle', '编辑用户');
$('#fm').form('load', row);
url = 'updatePerson?id=' + row.id;
}
}
function savePerson() {
$('#fm').form('submit', {
url: url,
onSubmit: function () {
return $(this).form('validate');
},
success: function (result) {
var result = eval('(' + result + ')');
if (result.errorMsg) {
$.messager.alert("系统提示", result.errorMsg);
return;
} else {
$.messager.alert("系统提示", "保存成功");
$('#dlg').dialog('close');
$("#dg").datagrid("reload");
}
}
});
}
</script>
</head>
<body>
<table id="dg" title="用户管理" class="easyui-datagrid" style="width:700px;height:350px"
url="listPersons"
toolbar="#toolbar" pagination="true"
rownumbers="true" fitColumns="true" singleSelect="true">
<thead>
<tr>
<th field="id" width="50" hidden="true">编号</th>
<th field="name" width="50">姓名</th>
<th field="age" width="50">年龄</th>
<!--<th field="birth" width="50">出生日期</th>-->
<th field="email" width="50">email</th>
</tr>
</thead>
</table>
<div id="toolbar">
<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="newPerson()">添加用户</a>
<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-edit" plain="true" onclick="editPerson()">编辑用户</a>
<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-remove" plain="true" onclick="deletePerson()">删除用户</a>
</div>
<div id="dlg" class="easyui-dialog" style="width:400px;height:250px;padding:10px 20px"
closed="true" buttons="#dlg-buttons">
<div class="ftitle">用户信息</div>
<form id="fm" method="post">
<table cellspacing="10px;">
<div class="fiteam">
<label>姓 名:</label>
<input name="name" class="easyui-validatebox" required="true" />
</div>
<div class="fiteam">
<label>年 龄:</label>
<input name="age" class="easyui-validatebox" />
</div>
<!--<div class="fiteam">
<label>生 日:</label>
<input name="birth" class="easyui-validatebox" validType="date" />
</div>-->
<div class="fiteam">
<label>email:</label>
<input name="email" class="easyui-validatebox" validType="email" />
</div>
</table>
</form>
</div>
<div id="dlg-buttons">
<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-ok" onclick="savePerson()">保存</a>
<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-cancel" onclick="$('#dlg').dialog('close')">关闭</a>
</div>
</body>
</html>
以上基本都是参照官方网站文档
http://www.jeasyui.com/tutorial/app/crud.php
接下来将上面的页面与SSM进行整合。
首先来看最关键的一个功能:用户以列表形式输出以及分页。
pagination="true"
即为打开分页主键。
我们定义数据网格(datagrid)列,并设置 'pagination' 属性为 true,它将在数据网格(datagrid)的底部生成一个分页(pagination)工具栏。pagination将发送两个参数到服务器:page:页码,起始值 1。rows:每页显示行。
观察实例代码:
$page = isset($_POST['page']) ? intval($_POST['page']) : 1;
$rows = isset($_POST['rows']) ? intval($_POST['rows']) : 10;
// ...
$rs = mysql_query("select count(*) from item");
$row = mysql_fetch_row($rs);
$result["total"] = $row[0];
$rs = mysql_query("select * from item limit $offset,$rows");
$items = array();
while($row = mysql_fetch_object($rs)){
array_push($items, $row);
}
$result["rows"] = $items;
echo json_encode($result);
服务器将会读取page和rows参数来进行分页操作。我们可以直接使用PageHelper插件来实现分页。
PageHelper.startPage(page, rows);
由实例代码也可得到,数据已json格式返回,为了实现分页操作,还需要在返回的json数据中添加total
参数,即返回数据库记录的条数。事实上,增删改也都是返回json数据,用来标识增删改成功与否。
实现:
@ResponseBody
@RequestMapping(value = "/listPersons", method = RequestMethod.POST)
public Map<String, Object> getPersons(@RequestParam("page")Integer page, @RequestParam("rows")Integer rows) {
System.out.println("page = " + page);
System.out.println("rows = " + rows);
Map<String, Object> map = new HashMap<>();
map.put("total", personService.getCount());
map.put("rows", personService.getAllPersons(page, rows));
return map;
}
分页实现:
@Override
public List<Person> getAllPersons(int page, int rows) {
PageHelper.startPage(page, rows);
return personMapper.selectAllPersons();
}
其他增删改的代码也都是大同小异了。