405错误

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="<%request.getContextPath(); %>Img_Servlet" method="post" enctype="multipart/form-data">
用户名:<input name="user-name" id="username" type="text"/>
</br>
密码:   <input name="user-pass" type="password" id="pass">
<img alt="" src="${pageContext.request.contextPath }/Img_Servlet">
</br><input name="file" id="file" type="file" style="border:1px solid black;" ></br>
<input name="btu" id="btu" type="submit">
</form>
</body>
</html>

package com.imooc.ures;

public class Ures {
         private String   ures_name;
         private String    ures_pass;
         private String   path;

         public Ures() {
   // TODO Auto-generated constructor stub
  }

  public Ures(String ures_name, String ures_pass, String path) {
   super();
   this.ures_name = ures_name;
   this.ures_pass = ures_pass;
   this.path = path;
  }

  public String getUres_name() {
   return ures_name;
  }

  public void setUres_name(String ures_name) {
   this.ures_name = ures_name;
  }

  public String getUres_pass() {
   return ures_pass;
  }

  public void setUres_pass(String ures_pass) {
   this.ures_pass = ures_pass;
  }

  public String getPath() {
   return path;
  }

  public void setPath(String path) {
   this.path = path;
  }

  @Override
  public String toString() {
   return "Ures [ures_name=" + ures_name + ", ures_pass=" + ures_pass + ", path=" + path + "]";
  }


}

package com.imooc.coll;

import java.util.HashMap;
import java.util.Map;

import com.imooc.ures.Ures;

public interface Coll {
abstract public Map<String, Object> reg(HashMap<String, Object> hashmap,Ures ures);

}

package com.imooc.coll;

import java.util.HashMap;
import java.util.Map;

import com.imooc.ures.Ures;

public class Coll_Uers implements Coll {

@Override
public Map<String, Object> reg(HashMap<String, Object> hashmap,Ures ures) {
  hashmap.put(ures.getUres_name(), ures);
  return hashmap;
  // TODO Auto-generated method stub

}

}

package com.imooc.img;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

import com.imooc.ures.Ures;

/**
* Servlet implementation class Img_Servlet
*/
@WebServlet("/Img_Servlet")
public class Img_Servlet extends HttpServlet {
private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public Img_Servlet() {
        super();
        // TODO Auto-generated constructor stub
    }

/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    org.apache.commons.fileupload.disk.DiskFileItemFactory   diskFileItemFactory=new org.apache.commons.fileupload.disk.DiskFileItemFactory();
     //创建核心类
   System.out.println( request.getMethod());
    ServletFileUpload sUpload=new ServletFileUpload(diskFileItemFactory);
      Map<String, String> ha=new HashMap<>();
     try {
   List<FileItem> list= sUpload.parseRequest(request);
       for (FileItem fileItem : list) {
    if (fileItem.isFormField()) {
    String name =fileItem.getFieldName();
    String value=fileItem.getString("UTF-8");
     ha.put("name",name);
     ha.put("pass", value);
    }else {
    String path= fileItem.getName();
    InputStream is= fileItem.getInputStream();
    String absPath="D:/";
    String sPath="D:/"+"/"+path;
    OutputStream os=new FileOutputStream(sPath);
    ha.put("path", sPath);
    int len=0;
    byte[] b=new byte[1024];
    while ((len=is.read(b, 0, len))!=-1) {
      os.write(b, 0, len);
    }
    is.close();
    os.close();
    }

   }
       Ures ures=new Ures();
       ures.setPath(ha.get("path"));
       ures.setUres_name(ha.get("name"));
       ures.setUres_pass(ha.get("pass"));
       System.out.println(ures);
    } catch (FileUploadException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
}