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异常java.lang.NoSuchMethodError

[英]Exception java.lang.NoSuchMethodError

I'm trying to upload pdf files in the server. 我正在尝试在服务器上传pdf文件。 And i;m using the following block of code into the controller: 我在控制器中使用以下代码块:

 @RequestMapping(value = /submit, method = RequestMethod.POST)
 public String upload(UploadItem uploadItem, BindingResult result, HttpServletRequest request, HttpSession session) {

   //some code here

   String name = request.getServletContext().getRealPath("/pdf/" + filename);
   File dest = new File(name);
   try {
        file.transferTo(dest);
   }catch(Exception e){
        System.err.println(e);
   }

   return "redirect:/details";

I'm doing this in order to store the pdf's into the pdf file. 我这样做是为了将pdf存储到pdf文件中。 In my localhost works fine but when i'm executing this on the server i'm taking the following exception: 在我的localhost工作正常,但当我在服务器上执行此操作时,我采取以下异常:

exception

org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.getServletContext()Ljavax/servlet/ServletContext;
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:839)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

root cause

java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.getServletContext()Ljavax/servlet/ServletContext;
frontend.controller.EsteemRatingsController.handleFormUpload(EsteemRatingsController.java:113)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:601)
org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

If i remove the lines that provide above in the controller class is working(ofcource without uploading the pdf's). 如果我删除控制器类中上面提供的行正在工作(ofcource没有上传pdf)。 Can anyone help me with this? 谁能帮我这个?

That method request.getServletContext() was introduced in servlet 3.0. 该方法request.getServletContext()是在servlet 3.0中引入的。 Make sure your container/library support that version. 确保您的容器/库支持该版本。

edit: tomcat 6 only have servlet 2.5, see http://tomcat.apache.org/whichversion.html 编辑:tomcat 6只有servlet 2.5,请参阅http://tomcat.apache.org/whichversion.html

it can be autowired: ServletContext and Spring MVC 它可以自动装配: ServletContext和Spring MVC

public class Xxxx{
    @Autowired
    ServletContext context;

    @RequestMapping(value = "/submit", method = RequestMethod.POST)
    public String upload(UploadItem uploadItem, BindingResult result, HttpServletRequest request, HttpSession session) {

       //some code here

       String name = context.getRealPath("/pdf/" + filename);
...

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