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我在Spring 3上創建驗證表單，我的問題是，我看到很多帶驗證表單的例子。我甚至創建了一個。但我的表單傳遞「result.hasErrors（）」方法，即使存在錯誤。使用Spring 3的驗證表單
我的代碼是：
控制器：
package com.esb.sso;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import javax.servlet.http.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.validation.BindingResult;
import java.util.Map;
import javax.validation.Valid;
import com.esb.sso.form.LoginForm;
import javax.servlet.http.HttpServletRequest;
/**
* Handles requests for the application home page.
*/
@Controller
@RequestMapping(value = "/")
public class HomeController {
LoginForm loginForm = new LoginForm();
model.put("loginForm", loginForm);
return "home";
}
@RequestMapping(method = RequestMethod.POST)
public String validation(@Valid LoginForm loginForm, BindingResult result,
Map model) throws IOException {
logger.info("Login POST var");
logger.info(loginForm.getLogin());
logger.info(loginForm.getPassword());
if (result.hasErrors()) {
logger.info("error");
return "home";
}
model.put("loginForm", loginForm);
return "logged";
}
}
驗證：
包com.esb.sso.form;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
public class LoginForm {
@NotNull(message = "notNull")
@Size(min=1, max=50, message="mote charters")
private String login;
@NotNull(message = "notNull")
@Size(min=1, max=50, message="mote charters")
private String password;
public void setLogin(String login){
this.login = login;
}
public String getLogin(){
return login;
}
public void setPassword(String password){
this.password = password;
}
public String getPassword(){
return password;
}
}
查看：
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<html>
<head>
<title>Home</title>
</head>
<body>
Autoryzacja!!!
<form:form action="" commandName="loginForm">
<table>
<tr>
<td>User Name:<FONT color="red"><form:errors path="login" /></FONT></td>
</tr>
<tr>
<td><form:input path="login" /></td>
</tr>
<tr>
<td>Password:<FONT color="red"><form:errors path="password" /></FONT></td>
</tr>
<tr>
<td><form:password path="password" /></td>
</tr>
<tr>
<td><input type="submit" value="Submit" /></td>
</tr>
</table>
</form:form>
</body>
</html>
的web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Processes application requests -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
的servlet上下文：
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
<!-- Enables the Spring MVC @Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<context:component-scan base-package="com.esb.sso" />
<beans:bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
<beans:property name="basename" value="/WEB-INF/messages" />
</beans:bean>
</beans:beans>
和messages.properties：
NotNull.loginForm.login=must not be blank.
NotNull.loginForm.password=must not be blank.
Size.loginForm.login=Login size must be between 1 and 50 charters.
Size.loginForm.password=Password size must be between 1 and 50 charters.
我不知道問題出在哪裏
Coul'd enybody幫助我 ？
我已經添加@ModelAttribute，但什麼都沒有改變。我仍然沒有正確的驗證。 :( – Ilkar 2012-01-17 08:02:12
你可以嘗試'@NotEmpty'註釋從Hibernate驗證器（hibernate-validator-4.0.2.GA.jar）而不是'@NotNull'。實際上可能是因爲'form：input'標籤提交了一個空值字符串，當你沒有指定任何輸入，從而通過@NotNull驗證。 – 2012-01-18 07:14:09
這個改變什麼也沒做。我的項目是基於'http://www.roseindia.net/tutorial/spring/spring3/web/spring-3-mvc -validation-example.html'。當我下載該示例時，它的工作原理是正確的。但是當我嘗試用自己的方法構建它時，或者只是將文件從該示例複製到新項目時，表單無法驗證。驗證不起作用，每個表單都通過驗證，也許我應該嘗試其他示例？ – Ilkar 2012-01-18 08:28:32