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java - Spring 验证异常 : BindException

转载 作者:塔克拉玛干 更新时间:2023-11-03 02:51:17 25 4
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addUser Controller 提交表单时发生异常

SEVERE: Servlet.service() for servlet dispatcherServlet threw exception org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 1 errors Field error in object 'userBean' on field 'email': rejected value [hello]; codes [Email.userBean.email,Email.email,Email.java.lang.String,Email]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [userBean.email,email]; arguments []; default message [email]]; default message [Not a vaild Email Address] at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:111) at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:75) at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:156) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:117) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:744)

获取表单的 Controller

    @RequestMapping(method = RequestMethod.GET, value = "register")
public String addUser(Model model) {
if (!model.containsAttribute("wrongLink")) {
System.out.println("not wrong Link");
model.addAttribute(new UserBean());
} else {
System.out.println("wrong Link");
}
return "user/register";
}

Controller 发布表单

@RequestMapping(method = RequestMethod.POST, value = "register")
public String addUser(@Valid UserBean userBean, Model model,
RedirectAttributes redirectAttrs, BindingResult bindingResult) {
System.out.println("in addUser form");
if (bindingResult.hasErrors()) {
System.out.println("ERROR in user Form");
return "user/edit";
}
return "redirect:/users/" + user.getDisplayName();
}

UserBean 类

import org.hibernate.validator.constraints.Email;
public class UserBean {

private Integer id;

@Email(message = "Not a vaild Email Address")
private String email;
//getter and setter
}

表格

<div id="container">
<sf:form method="POST" modelAttribute="userBean">
<div class="form">
<sf:input path="email" type="text" id="email"
placeholder="email address" />
<sf:errors path="email" cssClass="error" />
<input class="send submit" type="submit" name="submit_first"
id="submit_first" value="" />
</div>
</sf:form>
</div>

Spring .xml

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"
xmlns:tx="http://www.springframework.org/schema/tx">

<context:component-scan base-package="com.example" />

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${smtp.host}" />
<property name="port" value="${smtp.port}" />
<property name="username" value="${smtp.username}" />
<property name="password" value="${smtp.password}" />
<property name="javaMailProperties">
<props>
<!-- Use SMTP transport protocol -->
<prop key="mail.transport.protocol">smtp</prop>
<!-- Use SMTP-AUTH to authenticate to SMTP server -->
<prop key="mail.smtp.auth">true</prop>
<!-- Use TLS to encrypt communication with SMTP server -->
<prop key="mail.smtp.starttls.enable">true</prop>
<prop key="mail.debug">true</prop>
</props>
</property>
</bean>

<bean id="alertMailMessage" class="org.springframework.mail.SimpleMailMessage">
<property name="from" value="${alertMailMessage.from}" />
<property name="to" value="${alertMailMessage.to}" />
<property name="subject" value="${alertMailMessage.subject}" />
</bean>

<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- one of the properties available; the maximum file size in bytes -->
<property name="maxUploadSize" value="1000000" />
</bean>


<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>

<mvc:resources mapping="/**" location="/resources/" />

<mvc:annotation-driven />

<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>/WEB-INF/properties/database.properties</value>
<value>/WEB-INF/properties/smtp.properties</value>
</list>
</property>
</bean>

<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.password}" />
</bean>

<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.example.model" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
</props>

</property>
</bean>


<tx:annotation-driven transaction-manager="transactionManager" />

<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

为什么在输入无效电子邮件时会出现此异常,而不是必须执行验证。

最佳答案

在 Controller 的 addUser 方法中,您的 BindingResult 需要紧跟在 bean 之后:

public String addUser(@Valid UserBean userBean, BindingResult bindingResult,
Model model, RedirectAttributes redirectAttrs) {
...
}

关于java - Spring 验证异常 : BindException,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29075047/

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