<％@ taglib uri =“www.springframework.org/tags/form”prefix =“form”％><form：errors path =“student1。*”/>导致“Unable to compile JSP page”error

I我努力学习Spring MVC和时尝试了从互联网上一个样品，我收到以下错误：<％@ taglib uri =“www.springframework.org/tags/form”prefix =“form”％><form：errors path =“student1。*”/>导致“Unable to compile JSP page”error

HTTP Status 500 - Unable to compile class for JSP 

type Exception report 

message Unable to compile class for JSP 

description The server encountered an internal error that prevented it from fulfilling this request. 

exception 

org.apache.jasper.JasperException: Unable to compile class for JSP 
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:600) 
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:363) 
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) 
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
    org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168) 
    org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303) 
    org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1244) 
    org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027) 
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971) 
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) 
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) 
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622) 
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
root cause 

java.lang.NullPointerException 
    org.apache.tomcat.util.descriptor.tld.TldResourcePath.hashCode(TldResourcePath.java:164) 
    java.util.HashMap.hash(HashMap.java:338) 
    java.util.HashMap.get(HashMap.java:556)

这是我的JSP页面：

<%@taglib uri="www.springframework.org/tags/form" prefix="form" %> 
<html> 
<head> 
<title>Admission Form</title> 
</head> 
<body> 

<h1>${header_msg}</h1> 
<h3>Admission Form for Engineering Courses</h3> 

<form:errors path="student1.*" /> 
<form action="/Admissions/submitAdmissionForm.html" method="post"> 
    <table> 
    <tr><td> Student's Name : </td><td> <input type="text" name="studentName" /> </td></tr> 
    <tr><td> Student's Hobby : </td><td> <input type="text" name="studentHobby" /> </td></tr> 
    <tr><td> Date of Birth : </td><td> <input type="text" name="studentDOB" />  </td></tr> 
    <tr><td> Mobile No :  </td><td> <input type="text" name="studentMobile" /> </td></tr> 

    <tr><td> Skill set :  </td><td> <select name="studentSkills" multiple> 
              <option value="Core Java">Core Java</option> 
              <option value="Spring Core">Spring Core</option> 
              <option value="Spring MVC">Spring MVC</option> 
              </select> </td></tr> 
    </table> 

    <table> 
    <tr><td> Address : </td></tr> 
    <tr><td> Country: <input type="text" name="studentAddress.country" />  </td> 
     <td> City:  <input type="text" name="studentAddress.city" />  </td> 
     <td> Street: <input type="text" name="studentAddress.street" />  </td> 
     <td> Pin code: <input type="text" name="studentAddress.pincode" />  </td></tr> 

    <tr><td> </td><td> <input type="submit" value="Submit this form" />  </td></tr> 
    </table> 
</form> 

</body> 
</html>

我控制器类包含S中的下面的代码：

@ModelAttribute 
public void addingCommonObjects(ModelAndView model) { 

    model.addObject("header_msg", "College of Engineering, Adoor"); 
} 

@RequestMapping(value="/submitAdmissionForm.html", method=RequestMethod.POST) 
public ModelAndView submitAdmissionForm(@ModelAttribute("student1") Student student, BindingResult result) { 

    if(result.hasErrors()) { 
     ModelAndView model = new ModelAndView("AdmissionForm"); 
     return model; 
    } 
    ModelAndView model = new ModelAndView("AdmissionFormSuccess"); 
    return model; 
}

之前在JSP页面中添加的一切在控制BindingResult和<form:errors>工作正常。当你们看，这可能是代码中的一个小问题，但我一直试图找出最近3-4天的问题。请建议。

来源

2015-12-02 Sh-a-i

<%@taglib uri="www.springframework.org/tags/form" prefix="form" %>

uri在上面的行中不正确。 http在uri中不见了。下面试试

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form" %>

来源

2015-12-02 08:00:41

哇！非常感谢。我花了很多时间在这个http： - / –

<％@ taglib uri =“www.springframework.org/tags/form”prefix =“form”％><form：errors path =“student1。*”/>导致“Unable to compile JSP page”error

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