我认为这个问题很普遍,但是由于某些原因,我无法解决此问题。
这是我得到的错误:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'reverseController' defined in ServletContext resource [/WEB-INF/app-servlet.xml]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: Validator [FormValidator@6b3ded0d] does not support command class [ReverseString]
这是我的FormValidator类中的supports方法:
public boolean supports(Class clazz) {
return ReverseController.class.isAssignableFrom(clazz);
}
这是我的app-servlet.xml中的bean定义:
<bean id="reverseController" class="ReverseController">
<property name="commandName"><value>reverseString</value></property>
<property name="commandClass"><value>ReverseString</value></property>
<property name="formView"><value>reverse</value></property>
<property name="successView"><value>reverseResult</value></property>
<property name="validator"><bean class="FormValidator" /></property>
最后,这是我的ReverseController的主要部分:
@Service
public class ReverseController extends SimpleFormController {
public ReverseController() {
//setCommandClass(ReverseString.class);
//setCommandName("reverseString");
}
private ReverseString reverseStringMaster;
@Autowired
public void setWriter(ReverseString reverseStringMaster) {
this.reverseStringMaster = reverseStringMaster;
}
protected ModelAndView onSubmit(HttpServletRequest request,
HttpServletResponse response, Object command, BindException errors) {
ReverseString revString = (ReverseString) command;
return new ModelAndView(getSuccessView(),"reversedString", revString);
}
public void init() {
System.out.println("Done");
}
}
任何想法可能导致该问题吗?
最佳答案
它是命令类的一个实例,该类在每次请求时均得到验证-因为该类中填充了表单数据。控制器本身未经验证。
因此,您的supports()
中的FormValidator
方法应实际显示为:
public boolean supports(Class clazz) {
return ReverseString.class.isAssignableFrom(clazz);
}
关于java - Spring Validator不支持命令类,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/16665988/