title: Neither BindingResult nor plain target object for bean name 'zipbean' available as request attribute
body: <p><em>can someone help me about this error</em></p>
  
  <p><em>index.jsp</em></p>
  
  <pre><code>&lt;%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%&gt;
  &lt;html&gt;
  &lt;head&gt;
  &lt;body&gt;
  &lt;jsp:include page="links.jsp"/&gt; 
  &lt;script src="&lt;%=request.getContextPath()%&gt;/js/welcome.js"&gt;&lt;/script&gt;
  &lt;form:form action="${pageContext.request.contextPath}/Customer" method="POST" modelAttribute="zipbean"&gt;
  &lt;input type="text" id="zip" name="zip" class="form-control search ui-autocomplete" onkeypress=" return validate(event)" onkeydown="getData('${pageContext.request.contextPath}/ZipController/autoComplete');" /&gt;
  &lt;form:button path="zipone" class="btn btn-success"&gt;Get a Quote&lt;/form:button&gt;
  &lt;/center&gt;
  &lt;/form:form&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p><em>CustomerController</em></p>
  
  <pre><code>@Controller
  @RequestMapping("/Customer")
  public class CustomerController 
  {
      @Autowired
      ZipDao zipDao;
          @RequestMapping(method = RequestMethod.GET)
          public String init(HttpServletRequest request,HttpServletResponse responce,ModelMap model)
          {
              System.out.println("customer page started");
              ZipBean zipbean=new ZipBean();
              model.addAttribute("zipbean", zipbean);
              return "customer";
          }
  }
  </code></pre>
  
  <blockquote>
    <p>And i having customer page with some textboxes to display</p>
  </blockquote>