接一篇文章，今天上午实现了增加数据。下面是Jsp，里面主要是看newUser()和saveUser().注意这函数里的url，newUser()里面去掉url属性。还要注意的一个问题
<div id="toolbar"> <a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="newUser()">New User</a> <a href="#" class="easyui-linkbutton" iconCls="icon-edit" plain="true" onclick="editUser()">Edit User</a> <a href="#" class="easyui-linkbutton" iconCls="icon-remove" plain="true" onclick="removeUser()">Remove User</a> </div>
这里面,<a href="#" >的#要改为javvascript:void(0); 这样才不会出现新建用户时找不到页面的情况。
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<base href="<%=basePath%>">
<meta name="description" content="easyui help you build your web page easily!">
<title>jQuery EasyUI CRUD Demo</title>
<link rel="stylesheet" type="text/css" href="css/easyui/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="css/easyui/themes/icon.css">
<link rel="stylesheet" type="text/css" href="css/easyui/demo.css">
<script type="text/javascript" src="js/jquery-easyui-1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery-easyui-1.4.2/jquery.easyui.min.js"></script>
<style type="text/css">
#fm{
margin:0;
padding:10px 30px;
}
.ftitle{
font-size:14px;
font-weight:bold;
color:#666;
padding:5px 0;
margin-bottom:10px;
border-bottom:1px solid #ccc;
}
.fitem{
margin-bottom:5px;
}
.fitem label{
display:inline-block;
width:80px;
}
</style>
<script type="text/javascript">
var url;
function newUser(){
$('#dlg').dialog('open').dialog('setTitle','New User');
$('#fm').form('clear');
//url = 'user/addUser';
}
function editUser(){
var row = $('#dg').datagrid('getSelected');
if (row){
$('#dlg').dialog('open').dialog('setTitle','Edit User');
$('#fm').form('load',row);
url = 'update_user.php?id='+row.id;
}
}
function saveUser(){
$('#fm').form('submit',{
url:'user/addUser',
onSubmit: function(){
return $(this).form('validate');
},
success: function(result){
var result = eval('('+result+')');
if (result.success){
$.messager.show({
title:'Info',
msg:result.msg,
showType:'fade',
style:{
right:'',
bottom:''
}
});
$('#dlg').dialog('close'); // close the dialog
$('#dg').datagrid('reload'); // reload the user data
} else {
$.messager.show({
title: 'Error',
msg: result.msg
});
}
}
});
}
function removeUser(){
var row = $('#dg').datagrid('getSelected');
if (row){
$.messager.confirm('Confirm','Are you sure you want to remove this user?',function(r){
if (r){
$.post('remove_user.php',{id:row.id},function(result){
if (result.success){
$('#dg').datagrid('reload'); // reload the user data
} else {
$.messager.show({ // show error message
title: 'Error',
msg: result.msg
});
}
},'json');
}
});
}
}
</script>
</head>
<body>
<h2>Basic CRUD Application</h2>
<div class="demo-info" style="margin-bottom:10px">
<div class="demo-tip icon-tip"> </div>
<div>Click the buttons on datagrid toolbar to do crud actions.</div>
</div>
<table id="dg" title="My Users" class="easyui-datagrid" style="width:700px;height:250px"
url="user/listUsers"
toolbar="#toolbar" pagination="true"
rownumbers="true" fitColumns="true" singleSelect="true">
<thead>
<tr>
<th field="userId" width="50">UserId</th>
<th field="userName" width="50">UserName</th>
<th field=passWord width="50">PassWord</th>
<th field="enable" width="50">Enable</th>
</tr>
</thead>
</table>
<div id="toolbar">
<a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="newUser()">New User</a>
<a href="#" class="easyui-linkbutton" iconCls="icon-edit" plain="true" onclick="editUser()">Edit User</a>
<a href="#" class="easyui-linkbutton" iconCls="icon-remove" plain="true" onclick="removeUser()">Remove User</a>
</div>
<div id="dlg" class="easyui-dialog" style="width:400px;height:280px;padding:10px 20px"
closed="true" buttons="#dlg-buttons">
<div class="ftitle">User Information</div>
<form id="fm" method="post" novalidate>
<div class="fitem">
<label>UserId:</label>
<input name="UserId" class="easyui-validatebox" required="true">
</div>
<div class="fitem">
<label>UserName:</label>
<input name="UserName" class="easyui-validatebox" required="true">
</div>
<div class="fitem">
<label>PassWord:</label>
<input name="PassWord">
</div>
<div class="fitem">
<label>Enable:</label>
<input name="Enable" class="easyui-validatebox" >
</div>
</form>
</div>
<div id="dlg-buttons">
<a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-ok" onclick="saveUser()">Save</a>
<a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-cancel" onclick="javascript:$('#dlg').dialog('close')">Cancel</a>
</div>
</body>
</html>
UserController：
package com.yang.bishe.controller;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import com.yang.bishe.entity.Json;
import com.yang.bishe.entity.User;
import com.yang.bishe.service.interfaces.IUserService;
@Controller
@RequestMapping("/user")
public class UserController extends BaseController {
@Autowired
private IUserService userService;
@RequestMapping("/list")
public ModelAndView goList(){
return new ModelAndView("user/list");
}
@RequestMapping("/listUsers")
public String listUser(HttpServletRequest request,
HttpServletResponse response) throws Exception {
// return "/views/index";
String hql="from User";
List<User>users=userService.find(hql);
// String result=userService.find(hql);
writeJson(users,response);
return null;
}
@RequestMapping("/addUser")
public String addUser(User user,HttpServletRequest request,
HttpServletResponse response) throws Exception{
Json json = new Json();//用于向前端发送消息
if(userService.getById(user.getUserId())!=null){
json.setMsg("新建用户失败，用户已存在！");
}else{
userService.save(user);
json.setMsg("新建用户成功！");
json.setSuccess(true);
}
writeJson(json,response);
return null;
}
}
writeJson(json,response)
这里是把消息传给前端页面，在script里面的函数里success:funciont(result);的result就存有controller里的json消息。
时间： 2024-08-15 20:17:38