尝试将MVC Spring Validation应用于我的Web项目。我认为我已经正确配置了所有内容，但我的表单未经过验证。
我没有使用Maven或Gradle。相反，我在构建路径中包含了我的教程所需的jar文件。
jar文件是：validation-api-1.1.0.Final.jar hibernate-validator-5.0.1.Final.jar
我的config.xml文件：
<?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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-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/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<mvc:annotation-driven />
</beans>
我的型号：
package bl;
import javax.validation.constraints.Size;
import org.hibernate.validator.constraints.NotEmpty;
public class VendorValidation {
@NotEmpty
@Size(min = 1, message = "Field requires an entry")
private String vname;
@NotEmpty
private String vphone;
@NotEmpty
private String vemail;
@NotEmpty
private String vcity;
@NotEmpty
private String vstate;
@NotEmpty
private String vcountry;
@NotEmpty
private String vzipcode;
@NotEmpty
private String vtimezone;
public String getVname() {
return vname;
}
public void setVname(String vname) {
this.vname = vname;
}
public String getVphone() {
return vphone;
}
public void setVphone(String vphone) {
this.vphone = vphone;
}
public String getVemail() {
return vemail;
}
public void setVemail(String vemail) {
this.vemail = vemail;
}
public String getVcity() {
return vcity;
}
public void setVcity(String vcity) {
this.vcity = vcity;
}
public String getVstate() {
return vstate;
}
public void setVstate(String vstate) {
this.vstate = vstate;
}
public String getVcountry() {
return vcountry;
}
public void setVcountry(String vcountry) {
this.vcountry = vcountry;
}
public String getVzipcode() {
return vzipcode;
}
public void setVzipcode(String vzipcode) {
this.vzipcode = vzipcode;
}
public String getVtimezone() {
return vtimezone;
}
public void setVtimezone(String vtimezone) {
this.vtimezone = vtimezone;
}
}
我的看法：
<form:form method="post" id="va-form" action="insertVendor" modelAttribute="vendorValidation">
<div class="form-group">
<label>Vendor Name</label> <form:input type="text" path="vname" class="form-control"
id="nameForm" />
</div>
...
</form:form>
我的控制器：
@RequestMapping(value = "vendorForm", method = RequestMethod.GET)
public String formView(ModelMap map, HttpServletRequest request) {
VendorValidation vendorValidation = new VendorValidation();
map.put("vendorValidation", vendorValidation);
return "vendorForm";
}
RequestMapping(value = "/insertVendor", method = RequestMethod.POST)
public String insertVendor(@Valid @ModelAttribute("vendorValidation") VendorValidation vendorValidation, BindingResult result,
HttpServletRequest request, ModelMap model) {
System.out.println("Found form errors: " + result.hasErrors());
if (result.hasErrors())
{
return "vendorForm";
}
else
{
// database logic
return "vendormanagement";
}
}
尝试提交表单时，BindingResult对象不包含任何错误，当我将字段留空时应该包含任何错误。因此，if（result.hasErrors（））不会触发，并且我尝试插入空值时会收到数据库异常。
Download the Spring framework "-dist.zip" from here - https://repo.spring.io/release/org/springframework/spring/
Download hibernate ORM zip - https://sourceforge.net/projects/hibernate/files/hibernate-orm/5.4.2.Final/hibernate-release-5.4.2.Final.zip/download
从目录中添加jar - hibernate-release-5.4.2.Final\lib\required
下载hibernate验证器 - https://sourceforge.net/projects/hibernate/files/hibernate-validator/6.0.16.Final/hibernate-validator-6.0.16.Final-dist.zip/download
添加外面的罐子：hibernate-validator-6.0.16.Final\dist
记住：将所有jar添加到类路径中。
现在，我将提供一个示例代码来演示：
spring.xml或application-context.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan
base-package="com.demo" />
<mvc:annotation-driven />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
<!-- Add custom message resources -->
<bean id="messageSource"
class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="basenames" value="resources/message"></property>
</bean>
</beans>
veb.hml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>project</display-name>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
我认为这将解决您的问题。