我正在开发一个应用程序,其中LoginForm.jsp并UserRegistration.jsp会导致UserAccount jsp网页上的特定action.In LoginForm当用户按下"登录"按钮- > UserAccount形式是当输入并提交信息displayed.In放在userRegistration表- >显示UserAccount形式.以下是请求时的控制器代码UserAccount.html
@RequestMapping(value="/UserAccount.html", method = RequestMethod.POST)
public ModelAndView userAccountForm(@Valid @ModelAttribute("user") UserDetails user,BindingResult result) {
if(result.hasErrors())
{ System.out.println(result.getAllErrors());
ModelAndView model1=new ModelAndView("UserRegistration");
return model1;
}
// User validation
System.out.println(user.getAccountType());
userDAO.create(user);
ModelAndView model1 = new ModelAndView("UserAccount");
return model1;
}
loginForm.jsp中
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<html>
<body>
<h1
style="background-color: green; color: Yellow; padding: 10px; text-align: center;">Mybank
Online Login</h1>
<form:errors path="user.*" />
<form action="/MyBankProject/UserAccount.html" method="post">
<div
style="background-color: yellow; color: black; padding: 10px; text-align: center;"
align="center">
<p>
User ID <input type="text" name="userName" />
</p>
<p>
Password <input type="password" name="password" />
</p>
<input type="submit" value="Login" /> <a
href="/MyBankProject/userRegistration.html">New User?</a>
</div>
<input type="hidden" name="page" value="LoginForm"/>
</form>
</body>
</html>
UserRegistration.jsp
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<html>
<body>
<h1>${headerMessage}</h1>
<h3>USER REGISTRATION</h3>
<form:errors path="user.*" />
<form action="/MyBankProject/UserAccount.html" method="post">
<table border="1" style="width:100%" >
<tr>
<td>FirstName :</td>
<td><input type="text" name="firstName" /></td>
</tr>
<tr>
<td>LastName :</td>
<td><input type="text" name="lastName" /></td>
</tr>
<tr>
<td>User's EmailId :</td>
<td><input type="text" name="emailId" /></td>
</tr>
<tr>
<td>user's gender :</td>
<td><select name="gender" multiple>
<option value="M">Male</option>
<option value="F">Female</option>
</select></td>
</tr>
<tr>
<td>user's age :</td>
<td><input type="text" name="age" /></td>
</tr>
<tr>
<td>user's DOB :</td>
<td><input type="text" name="dOB" /></td>
</tr>
<tr>
<td>Account Type :</td>
<td><select name="accountType" multiple>
<option value="Savings">Savings</option>
<option value="Current">Current</option>
<option value="FixedDeposit">Fixed Deposit</option>
</select>
<td>
</tr>
<tr>
<td>Amount :</td>
<td><input type="text" name="amount" /></td>
</tr>
</table>
<table>
<tr>
<td>UserName</td>
<td><input type="text" name="userName" /></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="password" /></td>
</tr>
</table>
<table>
<tr>
<td>User's Address :</td>
</tr>
<tr>
<td>country: <input type="text" name="address.country" /></td>
<td>city: <input type="text" name="address.city" /></td>
<td>street: <input type="text" name="address.street" /></td>
<td>pincode:<input type="text" name="address.pincode" /></td>
</tr>
<tr>
<td><button type="submit">Submit</button></td>
<td><input type="button" onclick="history.back();"
value="Cancel"></td>
</tr>
</table>
<input type="hidden" name="page" value="UserRegistration"/>
</form>
</body>
</html>
现在对我来说,我需要知道UserAccount调用的jsp页面,以便根据它执行不同的操作.我是Spring MVC的新手,并在互联网上搜索解决方案.
HTTP是无状态协议.这意味着您无法对先前的状态做出假设.
我认为你有两种方法可以获得有关上一页的信息.
在表单中添加隐藏字段,并使用请求发送页面名称.
HTML:
<form>
<input type="hidden" name="page" value="[the name of the current page]"/>
</form>
控制器:
@RequestMapping(value="/UserAccount.html", method = RequestMethod.POST)
public ModelAndView userAccountForm(@RequestParam(value="page", required=false) String page) {
[...]
}
现在您可以检查page值.
使用会话.将当前页面存储在呈现表单的控制器方法中:
@RequestMapping("/login")
public String login(HttpServletRequest request) {
request.getSession().setAttribute("lastPage", "login");
return "redirect:/UserAccount.html";
}
@RequestMapping("/register")
public String register(HttpServletRequest request) {
request.getSession().setAttribute("lastPage", "register");
return "redirect:/UserAccount.html";
}
检查以下lastPage值userAccountForm():
@RequestMapping(value="/UserAccount.html", method = RequestMethod.POST)
public ModelAndView userAccountForm(HttpServletRequest request) {
HttpSession session = request.getSession();
String lastPage = (String) session.getAttribute("lastPage");
session.removeAttribute("lastPage");
[...]
}
检查请求标头的referer字段.
@RequestMapping(value="/UserAccount.html", method = RequestMethod.POST)
public ModelAndView userAccountForm(@RequestHeader(value = "referer", required = false) String referer) {
[...]
}
如果有的话,这会将referer作为方法参数.小心.可能没有引用者或者该字段是由客户操纵的.
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