<form:error> 不打印消息

Question

这是我的代码。有人可以帮忙吗？我已经尝试了互联网上的所有内容。我已经参考许多网站更改了我的代码，但徒劳无功。我一直在寻找答案很长一段时间，但没有找到任何东西。请帮忙

豆子class

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private int userId;

    @Column
    @NotEmpty (message="First Name cannot be blank")
    private String firstName;

    @Column
    private String lastName;

    @Column
    @Email(message="Email Id is not valid")
    private String email;

    @Column
    private int age;

    @Column
    private String phoneNumber;

    @Column
    private boolean isAdmin = true;

    @Column
    @Size(min=3 , max = 10,message="Username should be between 3 to 10 characters long")
    private String userName;

    @Column
    private String password;

    @Column
    private String dob;

    @Column
    private boolean isActive;

    public int getUserId() {
        return userId;
    }

    public void setUserId(int userId) {
        this.userId = userId;
    }

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getPhoneNumber() {
        return phoneNumber;
    }

    public void setPhoneNumber(String phoneNumber) {
        this.phoneNumber = phoneNumber;
    }

    public boolean isAdmin() {
        return isAdmin;
    }

    public void setAdmin(boolean isAdmin) {
        this.isAdmin = isAdmin;
    }

    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;
    }

    public String getDob() {
        return dob;
    }

    public void setDob(String dob) {
        this.dob = dob;
    }

    public boolean isActive() {
        return isActive;
    }

    public void setActive(boolean isActive) {
        this.isActive = isActive;
    }

    @Override
    public String toString() {
        return "UserVo [userId=" + userId + ", firstName=" + firstName + ", lastName=" + lastName + ", email=" + email
                + ", age=" + age + ", phoneNumber=" + phoneNumber + ", isAdmin=" + isAdmin + ", userName=" + userName
                + ", password=" + password + ", dob=" + dob + ", isActive=" + isActive + "]";
    }
}

Spring-servlet.xml

<mvc:annotation-driven />
<context:component-scan base-package="com.ism"></context:component-scan>
<bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/views/"></property>
    <property name="suffix" value=".jsp"></property>

</bean>
    <bean id="messageSource"
    class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
    <property name="basename" value="/WEB-INF/messages" />
</bean>

<!-- DataSource -->
<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"
    destroy-method="close">
    <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
    <property name="url" value="jdbc:sqlserver://EHRRCMDEV:2433" />
    <property name="username" value="OMDTrainee" />
    <property name="password" value="Pass@OMDTrainee" />
</bean>
<!-- Hibernate SessionFactory -->

<bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">

    <property name="dataSource" ref="dataSource" />
    <property name="annotatedClasses">
        <list>
            <value>com.ism.vo.UserVo</value>
            <value>com.ism.vo.CategoryVo</value>
            <value>com.ism.vo.ItemVo</value>
        </list>
    </property>

    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
        </props>
    </property>
</bean>

web.xml

<servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>*.html</url-pattern>
</servlet-mapping>

Jsp 文件

<tr>
<td>Email:</td>
<td><form:input path="email"/><font color="red"><form:errors path="email"></form:errors></font></td>
</tr>

Message.properties

NotEmpty.userVo.firstName=First Name is required
Email.userVo.email= Email addesss is not valid

Answer 1

我复制了您的代码段并添加了以下代码来满足您的要求。它正在显示验证消息。

@RequestMapping(value = "/test", method = RequestMethod.POST) public String testMethodPost(HttpServletRequest request, @Valid @ModelAttribute("Bean") Bean bean, BindingResult result, ModelMap model) { model.addAttribute("org.springframework.validation.BindingResult.bean", result); model.addAttribute("bean", bean); return "MyJsp"; }

Answer 2

你能包括你的控制器和 jsp 吗？ bean定义一定有错误。我需要的片段是：@Requestmethod.Get returns 你的表格，< form:form>[=15= 的声明] 标签，以及处理传入请求的方法 @Requestmethod.Post

<form:error> 不打印消息

<form:error> not printing message

validation

spring

annotations

spring-mvc

spring-validator