我有一个问题，我不明白为什么这部分代码(注册在哪里)即使我写了一个url，Spring也找不到。但是另一部分中的相同代码(例如，添加一本新书或添加该书的新作者)工作正常，它将所有内容添加到数据库中并将我发送到另一个页面。但是，如果我注册此人并单击“提交”，它总是显示 400 - 错误请求错误。请帮我。我写错了什么？
这是我的 Controller (不适用于注册簿的注册部分(不重定向到注册簿并且不将数据添加到数据库中)):
@Controller
public class HelloController {
private static final Logger logger = Logger.getLogger(HelloController.class.getName());
@Autowired
@Qualifier("author")
private AuthorzDAO authorzDAO;
@Autowired
@Qualifier("book")
private BooksDAO booksDAO;
@Autowired
@Qualifier("borrow")
private BorrowsDAO borrowsDAO;
@Autowired
@Qualifier("person")
private PersonDAO personDAO;
@RequestMapping(value = "/",method = RequestMethod.GET)
public ModelAndView printHello() {
return new ModelAndView("hello", "command", new LoginPerson());
}
@RequestMapping(value = "/",method = RequestMethod.POST)
public String login(@ModelAttribute("SpringWeb")LoginPerson person, ModelMap model, HttpServletRequest request) {
model.addAttribute("info", personDAO.getInfromStudent(person.getEmail(), person.getPassword()));
model.addAttribute("takenbook", person.getEmail());
if (person.getEmail().equals("admin@admin.com") && person.getPassword().equals("admin")) {
logger.warning("AAAAA");
logger.warning(person.getEmail());
return "admin";
} else if(personDAO.checkPerson(person.getEmail(), person.getPassword()) == true){
logger.warning(personDAO.checkPerson(person.getEmail(), person.getPassword()).toString());
logger.warning("BBBBB");
logger.warning(person.getPassword());
return "personinfo";
} else {
return new ResponseStatusException().error();
}
}
@RequestMapping(value = "/registration", method = RequestMethod.GET)
public ModelAndView registration() {
return new ModelAndView("registration", "person", new Person());
}
@RequestMapping(value = "/registration", method = RequestMethod.POST)
public String register(@ModelAttribute("person") Person person) {
logger.warning("Hello");
logger.warning(person.toString());
personDAO.connectPerson(person);
return "redirect:/registerbook";
}
@RequestMapping(value = "/registerbook", method = RequestMethod.GET)
public ModelAndView registerbook() {
//model.addAttribute("newborrow", new Borrows());
return new ModelAndView("registerbook", "newborrow", new Borrows());
}
@RequestMapping(value = "/registerbook", method = RequestMethod.POST)
public String regbook(@ModelAttribute("newborrow") Borrows borrows, ModelMap model) {
logger.warning(String.valueOf(borrows.getId()));
model.addAttribute("borrowid", borrows.getId());
model.addAttribute("personid", borrows.getStudentid());
model.addAttribute("bookid", borrows.getBookid());
Date today = new Date();
Calendar cal = new GregorianCalendar();
cal.setTime(today);
cal.add(Calendar.DAY_OF_MONTH, -30);
Date today30 = cal.getTime();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
Timestamp todays30 = Timestamp.valueOf(dateFormat.format(today30));
Timestamp todayy = Timestamp.valueOf(dateFormat.format(today));
borrows.setTakendate(todayy);
borrows.setBroughtdate(todays30);
borrowsDAO.insertBorrow(borrows);
return "hello";
}
@RequestMapping(value = "/addauth", method = RequestMethod.GET)
public ModelAndView addauth() {
return new ModelAndView("addauthbooks", "adding", new Authorz());
}
@RequestMapping(value = "/example", method = RequestMethod.POST)
public String addingauthor(@ModelAttribute Authorz authorz, ModelMap model) {
model.addAttribute("id_author", authorz.getAuthorid());
model.addAttribute("fname_author", authorz.getName());
model.addAttribute("lname_author", authorz.getSurname());
logger.warning(String.valueOf(authorz.getAuthorid()));
logger.warning(authorz.getName());
logger.warning(authorz.getSurname());
authorzDAO.insertAuthorz(authorz);
return "example";
}
@RequestMapping(value = "/addbooks", method = RequestMethod.GET)
public ModelAndView addbook() {
return new ModelAndView("addbook", "addingbook", new Books());
}
@RequestMapping(value = "/admin", method = RequestMethod.POST)
public String addingbook(@ModelAttribute Books books, ModelMap model) {
model.addAttribute("id", books.getId());
model.addAttribute("name", books.getName());
model.addAttribute("pagecount", books.getPagecount());
model.addAttribute("point", books.getPoint());
model.addAttribute("authorid", books.getAuthorid());
model.addAttribute("typeid", books.getTypeid());
model.addAttribute("fragment", books.getFragment());
logger.warning(String.valueOf(books.getId()));
logger.warning(books.getName());
logger.warning(String.valueOf(books.getPagecount()));
booksDAO.insertBook(books);
return "admin";
}
@RequestMapping(value = "/deleteauth", method = RequestMethod.GET)
public ModelAndView deleteauthbooks() {
return new ModelAndView("deleteauthbooks", "deletingauthor", new Authorz());
}
@RequestMapping(value = "/admins", method = RequestMethod.POST)
public String deleteresult(@ModelAttribute Authorz authorz, ModelMap model) {
model.addAttribute("id", authorz.getAuthorid());
model.addAttribute("name", authorz.getName());
model.addAttribute("surname", authorz.getSurname());
authorzDAO.delete_book(authorz.getSurname());
return "admin";
}
@RequestMapping(value = "/deletebooks", method = RequestMethod.GET)
public ModelAndView deletebook() {
return new ModelAndView("deletebooks", "deletingbook", new Books());
}
@RequestMapping(value = "/nadmin", method = RequestMethod.POST)
public String deletebookresult(@ModelAttribute Books books, ModelMap model) {
model.addAttribute("id", books.getId());
model.addAttribute("name", books.getName());
model.addAttribute("pagecount", books.getPagecount());
model.addAttribute("point", books.getPoint());
model.addAttribute("authid", books.getAuthorid());
model.addAttribute("typeid", books.getTypeid());
booksDAO.delete_book(books.getName());
return "admin";
}
@RequestMapping(value = "/borrow", method = RequestMethod.GET)
public ModelAndView borrows() {
return new ModelAndView("borrow", "borrowing", new LoginPerson());
}
@RequestMapping(value = "/res", method = RequestMethod.POST)
public String borrow(@ModelAttribute LoginPerson borrows, ModelMap model) {
logger.warning(borrows.getEmail());
List list_borrows = personDAO.searchStudent(borrows.getEmail());
logger.warning(list_borrows.toString());
model.addAttribute("borrow", list_borrows);
return "result";
}
@RequestMapping(value = "/changebook", method = RequestMethod.GET)
public ModelAndView change() {
return new ModelAndView("changebook", "changing", new Person());
}
@RequestMapping(value = "/changebook", method = RequestMethod.POST)
public String changebook(@ModelAttribute("changebook") Person point, ModelMap model, HttpServletRequest request) {
model.addAttribute("point", point.getPoint());
model.addAttribute("email", point.getEmail());
logger.warning("Upper");
logger.warning(String.valueOf(point.getPoint()));
logger.warning(point.getEmail());
logger.warning(request.getParameter("email"));
if(point.getPoint() != null && request.getParameter("email") != null) {
logger.warning("It works!!!");
personDAO.changeBook(point.getPoint(), request.getParameter("email"));
}
logger.warning("Down");
return "changebook";
}
}
这是我的注册jsp:
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%--
Created by IntelliJ IDEA.
User: lado
Date: 2019-05-19
Time: 17:48
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Registration</title>
<link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<center><h2>Person Information</h2></center>
<%--<form:form method = "post" action = "/springlab_war_exploded/admin" modelAttribute="person">--%>
<form:form method ="post" modelAttribute="person">
<fieldset>
<center>
<div id="legend">
<legend class="">Registration</legend>
</div>
</center>
<center>
<div class="control-group">
<!-- id -->
<label class="control-label" for="id">Id:</label>
<div class="controls">
<input type="number" id="id" name="id" placeholder="" class="input-xlarge">
<p class="help-block">Id can contain only numbers</p>
</div>
</div>
<div class="control-group">
<!-- name -->
<label class="control-label" for="name">First name:</label>
<div class="controls">
<input type="text" id="name" name="name" placeholder="" class="input-xlarge">
<p class="help-block">First name can contain any letters or numbers, without spaces</p>
</div>
</div>
<div class="control-group">
<!-- surname -->
<label class="control-label" for="surname">Last name:</label>
<div class="controls">
<input type="text" id="surname" name="surname" placeholder="" class="input-xlarge">
<p class="help-block">Last name can contain any letters or numbers, without spaces</p>
</div>
</div>
<div class="control-group">
<!-- E-mail -->
<label class="control-label" for="email">Email:</label>
<div class="controls">
<input type="email" id="email" name="email" placeholder="" class="input-xlarge">
<p class="help-block">Please provide your Email</p>
</div>
</div>
<div class="control-group">
<!-- Password-->
<label class="control-label" for="pass">Password:</label>
<div class="controls">
<input type="password" id="pass" name="pass" placeholder="" class="input-xlarge">
<p class="help-block">Password should be at least 4 characters</p>
</div>
</div>
<div class="control-group">
<!-- Date -->
<label class="control-label" for="birthdate">Date:</label>
<div class="controls">
<input type="datetime" id="birthdate" name="birthdate" placeholder="" class="input-xlarge">
<p class="help-block">Please enter your birthdate</p>
</div>
</div>
<div class="control-group">
<!-- Sex -->
<label class="control-label" for="gender">Sex:</label>
<div class="controls">
<input type="text" id="gender" name="gender" placeholder="" class="input-xlarge">
<p class="help-block">Please enter your gender only M or F</p>
</div>
</div>
<div class="control-group">
<!-- Class -->
<label class="control-label" for="job">Job:</label>
<div class="controls">
<input type="text" id="job" name="job" placeholder="" class="input-xlarge">
<p class="help-block">Job can contain any letters or numbers, without spaces</p>
</div>
</div>
<div class="control-group">
<!-- Point -->
<label class="control-label" for="point">Point:</label>
<div class="controls">
<input type="number" id="point" name="point" placeholder="" class="input-xlarge">
<p class="help-block">Point can contain only numbers</p>
</div>
</div>
<div class="control-group">
<!-- Phone number -->
<label class="control-label" for="phonenumber">Phone number:</label>
<div class="controls">
<input type="tel" id="phonenumber" name="phonenumber" placeholder="" class="input-xlarge">
<p class="help-block">Please enter your phone number</p>
</div>
</div>
<div class="control-group">
<!-- Button -->
<div class="controls">
<button class="btn btn-success" name="submit" value="submit">Next</button>
</div>
</div>
</center>
</fieldset>
</form:form>
</body>
</html>
还有我的jsp注册簿
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%--
Created by IntelliJ IDEA.
User: lado
Date: 2019-06-02
Time: 12:51
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Register Book</title>
<link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<%--<form:form class="form-horizontal" action='/springlab_war_exploded/login' method="post">--%>
<form:form class="form-horizontal" action="/springlab_war_exploded/login" method="post" modelAttribute="newborrow">
<fieldset>
<div id="legend">
<legend class="">Register Book</legend>
</div>
<div class="control-group">
<!-- id -->
<%--<label class="control-label" for="borrowid">Borrow Id:</label>--%>
<div class="controls">
<form:label path="id">Borrow Id:</form:label>
<form:input path="id"/>
<%--<input type="number" id="borrowid" name="borrowid" placeholder="" class="input-xlarge">--%>
<p class="help-block">Enter borrow id(it is your id)</p>
</div>
</div>
<div class="control-group">
<!-- name -->
<%--<label class="control-label" for="personid">Person Id:</label>--%>
<div class="controls">
<form:label path="studentid">Person Id:</form:label>
<form:input path="studentid"/>
<%--<input type="number" id="personid" name="personid" placeholder="" class="input-xlarge">--%>
<p class="help-block">Eneter person id(it is your id)</p>
</div>
</div>
<div class="control-group">
<!-- surname -->
<%--<label class="control-label" for="bookid">Book Id:</label>--%>
<div class="controls">
<form:label path="bookid">Book Id:</form:label>
<form:input path="bookid"/>
<%--<input type="number" id="bookid" name="bookid" placeholder="" class="input-xlarge">--%>
<p class="help-block">Enter book id</p>
</div>
</div>
<div class="control-group">
<!-- Button -->
<div class="controls">
<button class="btn btn-success" name="submit" value="submit">Submit</button>
</div>
</div>
</fieldset>
</form:form>
</body>
</html>
最佳答案
重定向或转发请求时不需要“/”。 你可以尝试“redirect:registerbook”;
关于java - Spring MVC 页面，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56498021/