Koledzy i koleżanki potrzebuje pewnego wyjaśnienia działania @Controller w Spring MVC.
Ponizej przedstawiam kody mojego @Service , @Controller i strony jsp.
Podstawowe pytanie to w jaki sposób uruchomić odpowiednia metode z @Controlera w odpowiednim formularzu na stronie tj.
Chciałbym żeby w
<form:form commandName="user">
uruchamiała sie metoda
@RequestMapping(value="/user", method=RequestMethod.POST)
public String saveUser(User user)
{
userService.addUser(user);
return "redirect:/user";
}
natomiast w
<form:form commandName="userCreated">
metoda
@RequestMapping(value="/user", method=RequestMethod.POST)
public String deleteUser(int id)
{
userService.deleteUser(id);
return "redirect:/user";
}
Moje klasy:
@Service
public class UserService {
private User user;
public static List<User> listUser = new ArrayList<User>();
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public List<User> showAllUser() {
/*listUser.add(new User(1, "Konrad", "Dawydiuk","m",
"[email protected]","davyd", "password"));*/
return listUser;
}
public void addUser(User user) {
listUser.add(user);
}
public void deleteUser(int id)
{
User userRemove = listUser.get(id);
listUser.remove(userRemove);
}
}
@Controller
public class HomeController {
@Autowired
private UserService userService;
@RequestMapping(value = "/user", method = RequestMethod.GET)
public String home(Model model) {
model.addAttribute("showAllUser", userService.showAllUser() );
model.addAttribute("user",new User());
model.addAttribute("userCreated", userService.getUser());
return "user";
}
@RequestMapping(value="/user", method=RequestMethod.POST)
public String saveUser(User user)
{
userService.addUser(user);
return "redirect:/user";
}
@RequestMapping(value="/user", method=RequestMethod.POST)
public String deleteUser(int id)
{
userService.deleteUser(id);
return "redirect:/user";
}
}
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@ page session="false"%>
<html>
<head>
<title>Home</title>
</head>
<body>
<h1>USER</h1>
<table>
<c:forEach items="${showAllUser}" var="user">
<tr>
<td>"${user.id}""</td>
<td>"${user.firstName}""</td>
<td>"${user.login}""</td>
</tr>
</c:forEach>
</table>
<form:form commandName="user">
<table>
<tr>
<td>id</td>
<td><form:input path="id" /></td>
</tr>
<tr>
<td>firstName</td>
<td><form:input path="firstName" /></td>
</tr>
<tr>
<td>lastName</td>
<td><form:input path="lastName" /></td>
</tr>
<tr>
<td>sex</td>
<td><form:input path="sex" /></td>
</tr>
<tr>
<td>email</td>
<td><form:input path="email" /></td>
</tr>
<tr>
<td>login</td>
<td><form:input path="login" /></td>
</tr>
<tr>
<td>password</td>
<td><form:input path="password" /></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="Dodaj" /></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="Usun" /></td>
</tr>
</table>
</form:form>
<form:form commandName="userCreated">
<tr>
<td>id</td>
<td><form:input path="id" /></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="Usun" /></td>
</tr>
</form:form>
</body>
</html>