我想通过一个简单的登录用例实现在Spring 3.0的JSR 303 Bean验证。 !问题是,如果我提交表单未经验证是不会发生任何值(即BindingResult方法hasErrors()总返回“假”,并打印我很酷,以下是代码片段:
@Controller
public class AnnotatedController {
@RequestMapping(value = "login")
public String validateLogin(@Valid LoginForm loginForm, BindingResult result, HttpServletRequest request) {
if(result.hasErrors())
System.out.println("Got Errors !");
else
System.out.println("I'm cool !");
return "login";
}
}
豆子看起来是这样的:
public class LoginForm {
@NotEmpty
private String userName;
@Size(min=2, max=3)
private String password;
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
最后的观点:
<table>
<form:form action="login.htm" modelAttribute="loginForm">
<tr>
<td>User :</td>
<td><form:input path="userName" /></td>
</tr>
<tr>
<td>Password :</td>
<td><form:input path="password" /></td>
</tr>
<tr><td><input type="submit" value="Ok"> </tr>
</form:form>
</table>
我在想什么?