Question

我有一个图片上传按钮。我想将图像保存到我的解决方案中的文件夹中并保存到数据库的路径。我使用 FileUpload1.SaveAs（Server.MapPath（imgPath））;

但是我得到了错误

无法找到路径'C：\ Users \ indian ....... \ ImageStorage \ DSC01420.JPG'的一部分。

如何将图像保存到文件夹和数据库的路径并检索它。

Answer 1

       **LINK EACH PROGRAMS**
    -------------------------------------------------------------------------------------- 
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!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>
<div>
            <h3> Choose File to Upload in Server </h3>          
           <form action="Recent" method="post" enctype="multipart/form-data">

            <input type="file" name="file" />
            <input type="submit" value="upload" />
            </form>          
        </div>


</body>
</html>
-------------------------------------------------------------------------------------------    
    import java.sql.*;
    import java.io.*;

    import javax.servlet.ServletException;
    import javax.servlet.annotation.MultipartConfig;
    import javax.servlet.annotation.WebServlet;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.Part;
    import javax.servlet.annotation.MultipartConfig;
    import javax.servlet.annotation.WebServlet;
    import java.util.Hashtable;
    import java.util.List;

    import org.apache.commons.fileupload.FileItem;
    import org.apache.commons.fileupload.ParameterParser;
    import org.apache.commons.fileupload.disk.DiskFileItemFactory;
    import org.apache.commons.fileupload.servlet.ServletFileUpload;


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

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

        /**
         * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
         */
        protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

            // TODO Auto-generated method stub
             Sample  s1=new Sample();
             final String UPLOAD_DIRECTORY = "/home/pradeep/Documents/pradeep/WebContent/Images";
             if(ServletFileUpload.isMultipartContent(request)){
                    try {
             List<FileItem> multiparts = new 
                                ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);

                        for(FileItem item : multiparts){
                            if(!item.isFormField())
                            {
                                String name = new File(item.getName()).getName();
                                item.write( new File(UPLOAD_DIRECTORY + File.separator + name));
                                String Path= "/home/pradeep/Documents/pradeep/WebContent/Images/" +name;


                              s1.connecting(Path);


                            }
                        }

                            request.setAttribute("message", "File Uploaded Successfully");
                    } catch (Exception ex) {
                       request.setAttribute("message", "File Upload Failed due to " + ex);
                    }          

                }else{
                    request.setAttribute("message",
                                         "Sorry this Servlet only handles file upload request");
                }



                    request.getRequestDispatcher("/Result.jsp").forward(request, response);




        }

    }


    ---------------------------------------------------------------------------------------
     import java.sql.Connection;
        import java.sql.DriverManager;
        import java.sql.PreparedStatement;
        import java.sql.ResultSet;
        import java.sql.SQLException;

        import dbconnections.Connections;



        public class Sample {
            Connections con=new Connections();

            public void connecting(String Path)
            {
                Connection conn=con.Connect();

                PreparedStatement pst;
                String query="INSERT INTO Student1 (Path) values (?)";
               try {

                    pst=conn.prepareStatement(query);
                    pst.setString(1,Path);
                    pst.executeUpdate();

                } catch (SQLException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

                // TODO Auto-generated method stub
            }


        }

图像路径保存到数据库

1 个答案: