[Spring] Neither BindingResult nor plain target object for bean name ''

Error Message

RequestContextAwareTag.java org.sprin
rk.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:86) ERROR - Neither BindingResult nor plain target object fo
ame 'loginForm' available as request attribute
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'loginForm' available as request attribute
at org.springframework.web.servlet.support.BindStatus.(BindStatus.java:141)
............
............
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Solution

因為沒有指定 jsp form modelAttribute 所對應的物件

ex:

// Controller
public String login(Map model) {
model.put("login", new new LoginForm());
}


// JSP
<form:form method="POST" modelattribute="login">


* Reference
- Neither BindingResult nor plain target object for bean name available as request attribute
- Spring MVC – Neither BindingResult Nor Plain Target Object For Bean Name ‘Xxx’ Available As Request Attribute.