当我在春季3提交表单时，在其中一个表单参数中输入Int的字符串时输入不匹配

Question

我有一个jsp表格如下：

<form:form method="POST" commandName="command" action="RouteGradesGoals.html" >
<tr>
   <td class="style4" colspan="2">
    Goal</td>
    <td colspan="2">
        <form:input path="goal" type="text" id="goal" style="width:200px;" />
     </td>
     <td colspan="2">
         <form:errors path="goal" cssClass="error" />
     </td>
 </tr>
 <input type="submit" name="action" value="Delete" id="Button3" 
                        class="submitButton" />
</form:form>

如您所见，命令对象中只有一个参数目标，并且在命令对象中的类型为int。

但是当我提交表单时，我通过在目标参数中传递string for int来获取此错误：

{“detail”：“处理请求时出错：org.springframework.validation.BeanPropertyBindingResult：1个错误\ n字段'''''''''''''''''''''''''''''''''''''''''''''' typeMismatch.command.goal，typeMismatch.goal，typeMismatch.java.lang.Integer，typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable：codes [command.goal，goal]; arguments [];默认消息[goal ]];默认消息[无法将类型'java.lang.String'的属性值转换为所需类型'java.lang.Integer'以获取属性'goal';嵌套异常是java.lang.NumberFormatException：对于输入字符串：\ “sadfasd \”]“}

控制器有一个简单的方法来处理这个表格，如下所示：

@RequestMapping( value = "/RouteGradesGoals.html", method = RequestMethod.POST )
    public String addInventoryGoal(@ModelAttribute( "command" ) InventoryGoal goal, HttpServletRequest request,
            BindingResult result, SessionStatus status, ModelMap model, HttpSession session){
        inventoryGoalValidator.validate(goal, result);
        if (result.hasErrors()) {
            return "RouteGradesGoals";
        }

        // do processing of the command object 
        return "RouteGradesGoals";

    }

命令对象如下：

public class InventoryGoal {

private Integer goal;

public Integer getGoal() {
        return goal;
    }

    public void setGoal(Integer goal) {
        this.goal = goal;
    }

}

这就是我在上下文xml文件中添加消息解析器的方法：

<bean id="messageSource"
    class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <property name="basename" value="classpath:messages" />
        <property name="defaultEncoding" value="UTF-8"/>
    </bean>

<bean id="localeChangeInterceptor"
    class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
    <property name="paramName" value="lang" />
</bean>

<bean id="localeResolver"
    class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
    <property name="defaultLocale" value="en"/>
</bean>

<bean id="handlerMapping"
    class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
    <property name="interceptors">
        <ref bean="localeChangeInterceptor" />
    </property>
</bean>

我已在messages.properties

中添加了这些属性

typeMismatch.command.goal=invalid goal1
typeMismatch.goal=invalid goal2
typeMismatch.java.lang.Integer=invalid goal2
typeMismatch=invalid goal3

web.xml：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">

    <display-name>Forerunner Webservice</display-name>
    <context-param>
        <param-name>contextClass</param-name>
        <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
    </context-param>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>com.ids.forerunner.web.configuration.WebConfig</param-value>
    </context-param>
    <context-param>
        <param-name>spring.profiles.active</param-name>
        <param-value>mysql</param-value>
    </context-param>
    <servlet>
        <servlet-name>restService</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value></param-value>
        </init-param>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet>
        <servlet-name>webapp</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>webapp</servlet-name>
        <url-pattern>/webapp/*</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>restService</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <filter>
        <!-- The CORS filter with parameters -->
        <filter-name>CORS</filter-name>
        <filter-class>com.ids.cors.CORSFilter</filter-class>

        <!-- Note: All parameters are options, if ommitted CORS Filter
             will fall back to the respective default values.
          -->
        <init-param>
            <param-name>cors.allowGenericHttpRequests</param-name>
            <param-value>true</param-value>
        </init-param>

        <init-param>
            <param-name>cors.allowOrigin</param-name>
            <param-value>*</param-value>
        </init-param>

        <init-param>
            <param-name>cors.supportedMethods</param-name>
            <param-value>GET, HEAD, POST, OPTIONS</param-value>
        </init-param>

        <init-param>
            <param-name>cors.supportedHeaders</param-name>
            <param-value>Content-Type, X-Requested-With</param-value>
        </init-param>

        <init-param>
            <param-name>cors.exposedHeaders</param-name>
            <param-value>X-Test-1, X-Test-2</param-value>
        </init-param>

        <init-param>
            <param-name>cors.supportsCredentials</param-name>
            <param-value>true</param-value>
        </init-param>

        <init-param>
            <param-name>cors.maxAge</param-name>
            <param-value>3600</param-value>
        </init-param>

    </filter>


    <filter-mapping>
        <!-- CORS Filter mapping -->
        <filter-name>CORS</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <filter>
        <filter-name>APIProtectionFilter</filter-name>
        <filter-class>com.ids.forerunner.filter.APIProtectionFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>APIProtectionFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</web-app>

WebConfig.java中的

我正在导入资源，如下所示：

@ImportResource（{ “类路径：/META-INF/spring/forerunner-service.xml”， “/ WEB-INF / web应用-servlet.xml中”}）

webapp-servlet.xml：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:util="http://www.springframework.org/schema/util"
    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-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/util 
http://www.springframework.org/schema/util/spring-util-3.0.xsd">

    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/jsp/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>
    <context:component-scan base-package="com.ids.forerunner.webapp.controllers" />

    <mvc:resources mapping="/css/**" location="/css/" />
    <mvc:resources mapping="/images/**" location="/images/" />
    <mvc:resources mapping="/js/**" location="/js/" />
    <mvc:resources mapping="/forerunner_style.css" location="/forerunner_style.css" />

    <mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/**" />
            <bean class="com.ids.forerunner.webapp.interceptor.ForerunnerRequestInterceptor" />
        </mvc:interceptor>
    </mvc:interceptors>

    <bean id="messageSource" class=" org.springframework.context.support.ReloadableResourceBundleMessageSource">
    <property name="basename" value="classpath:message-webapp-error" />
</bean>

<!--    <util:properties id="tophireProperties" location="classpath:tophire.properties" /> --> 

</beans>

先导-service.xml中：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:c="http://www.springframework.org/schema/c" xmlns:cache="http://www.springframework.org/schema/cache"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:task="http://www.springframework.org/schema/task" xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

    <!-- Enables automatic mapping of fund objects to and from JSON -->
    <mvc:annotation-driven />

    <import resource="classpath:/META-INF/spring/applicationContext.xml" />
    <import resource="classpath:/META-INF/spring/applicationContext-jpa.xml" />

    <bean id="contactFormValidator" class="com.ids.forerunner.webapp.validator.ContactFormValidator" />
    <bean id="inventoryGoalValidator" class="com.ids.forerunner.webapp.validator.InventoryGoalValidator" />
    <bean id="anchorAreaValidator" class="com.ids.forerunner.webapp.validator.AnchorAreaValidator" />

    <bean class="com.ids.forerunner.util.ForerunnerInitializer"/>
    <bean class="org.dozer.spring.DozerBeanMapperFactoryBean">
        <property name="mappingFiles" value="classpath*:/dozer-bean-mappings.xml" />
    </bean>

    <!-- Setup spring to pull in @Controller, @RequestMapping, etc. Configuration 
        scans specified packages for classes configured as Spring managed beans and 
        automatically sets up objects annotated with @Controller, @Service etc. -->
    <context:component-scan base-package="com.ids.forerunner.web" />

    <bean
        class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"></bean>

    <!-- Configures view for returning JSON to the client -->
    <bean
        class="org.springframework.web.servlet.view.json.MappingJacksonJsonView"
        p:contentType="text/plain"></bean>

    <!-- maps handler methods based on HTTP paths -->
    <bean
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <util:list id="beanList">
                <ref bean="jsonMessageConverter" />
            </util:list>
        </property>
    </bean>
    <!-- Converts JSON to POJO and vice versa -->
    <bean id="jsonMessageConverter"
        class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />

    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver"
        p:prefix="/WEB-INF/pages/" p:suffix=".jsp">
    </bean>

    <bean id="messageSource"
    class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <property name="basename" value="classpath:messages" />
        <property name="defaultEncoding" value="UTF-8"/>
    </bean>

<bean id="localeChangeInterceptor"
    class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
    <property name="paramName" value="lang" />
</bean>

<bean id="localeResolver"
    class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
    <property name="defaultLocale" value="en"/>
</bean>

<bean id="handlerMapping"
    class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
    <property name="interceptors">
        <ref bean="localeChangeInterceptor" />
    </property>
</bean>

<bean id="taskList" class="com.forerunner.cronjobs.TaskList">
        <property name="taskList">
            <list>
                <bean name="sessionTask" class="com.forerunner.cronjobs.SessionCronTask"></bean>
            </list>
        </property>
    </bean>
    <bean name="jobDetail" class="org.springframework.scheduling.quartz.JobDetailBean">
        <property name="jobClass" value="com.forerunner.cronjobs.ForerunnerCronJob" />
        <property name="jobDataAsMap">
            <map>
                <entry key="taskList" value-ref="taskList" />
            </map>
        </property>
    </bean>

    <bean id="cronTrigger" class="com.forerunner.cronjobs.ForerunnerTrigger">
        <property name="jobDetail" ref="jobDetail" />
    </bean>
    <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="jobDetails">
            <list>
                <ref bean="jobDetail" />
            </list>
        </property>

        <property name="triggers">
            <list>
                <ref bean="cronTrigger" />
            </list>
        </property>
    </bean>
</beans>

在message-webapp-error.properties中我有如下属性：

typeMismatch.command.goal=invalid goal1
typeMismatch.goal=invalid goal2
typeMismatch.java.lang.Integer=invalid goal2
typeMismatch=invalid goal3

表单已发布到此网址http：///forerunner/webapp/RouteGradesGoals.html

有人可以告诉我如何防止此类错误，并在此类场景中返回有效的错误消息。

Answer 1

配置MessageSource并为其中一个显示的错误代码

提供消息

• typeMismatch.command.goal
• typeMismatch.goal
• typeMismatch.java.lang.Integer
• typeMismatch

提供从最具体到最不具体的消息。

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

此MessageSource将从类路径的根加载messages.properties（或特定于区域设置）。添加并相应填写

typeMismatch.command.goal=The goal needs to be a valid number.
typeMismatch.java.lang.Integer=The given input is not a valid number.

现在针对您的案例显示此内容，将显示第一条消息，对于typeMismatch字段上的其他Integer错误，将显示第二条消息。

有关MessageSource的详细信息，请参阅reference guide和javadoc。有关错误代码生成的更多信息here。