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

I我努力學習Spring MVC和時嘗試了從互聯網上一個樣品，我收到以下錯誤：<％@ taglib uri =「www.springframework.org/tags/form」prefix =「form」％><form：errors path =「student1。*」/>導致「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)

這是我的JSP頁面：

<%@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>

我控制器類包含S中的下面的代碼：

@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頁面中添加的一切在控制BindingResult和<form:errors>工作正常。當你們看，這可能是代碼中的一個小問題，但我一直試圖找出最近3-4天的問題。請建議。

來源

2015-12-02 Sh-a-i

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

uri在上面的行中不正確。 http在uri中不見了。下面試試

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

來源

2015-12-02 08:00:41

哇！非常感謝。我花了很多時間在這個http： - / –

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

回答

相關問題