uploadstudphoto.java

servlet做控制层示例

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   UploadStudPhoto.java

package com.saintbo.servlet.student;

import com.jspsmart.upload.Files;
import com.jspsmart.upload.Request;
import com.jspsmart.upload.SmartUpload;
import com.saintbo.entity.student.TblStudent;
import com.saintbo.javabean.sys.SysResource;
import com.saintbo.javabean.sys.UserInfo;
import com.saintbo.servlet.MyExtendedServlet;
import com.saintbo.session.student.StudentSessionLocal;
import com.saintbo.session.student.StudentSessionLocalHome;
import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import javax.naming.InitialContext;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpSession;

public class UploadStudPhoto extends MyExtendedServlet
{

    private static ServletConfig config;

    public UploadStudPhoto()
    {
    }

    public void init(ServletConfig config)
        throws ServletException
    {
        super.init(config);
        UploadStudPhoto _tmp = this;
        config = config;
    }

    public ServletConfig getServletConfig()
    {
        return config;
    }

    public void handle()
        throws IOException, ServletException
    {
        UserInfo userInfo = (UserInfo)session.getAttribute("USERINFO");
        int userAuthority = super.checkAuthority(userInfo, 1, 0);
        if(userAuthority != 1)
            return;
        String studentID = "";
        String errorMessage = "";
        boolean result = false;
        if(SysResource.getSysParamValByParamID(new Integer(128)) != null || "1".equals(SysResource.getSysParamValByParamID(new Integer(128))))
        {
            System.out.println(1);
            SmartUpload smartUpload = new SmartUpload();
            System.out.println(2);
            smartUpload.initialize(config, req, res);
            System.out.println(3);
            try
            {
                smartUpload.upload();
                Request smartRequest = smartUpload.getRequest();
                studentID = smartRequest.getParameter("StudentID");
                System.out.println("StudentID:" + studentID);
                String photoName = "";
                String photoFile = "";
                TblStudent student = null;
                if(studentID != null && !studentID.trim().equals(""))
                {
                    InitialContext jndiContext = new InitialContext();
                    StudentSessionLocalHome home = (StudentSessionLocalHome)jndiContext.lookup("StudentSessionLocal");
                    StudentSessionLocal local = home.create();
                    System.out.println("get ejb");
                    student = local.getStudentByStudentID(studentID);
                    System.out.println("ejb end");
                    com.jspsmart.upload.File photo = smartUpload.getFiles().getFile(0);
                    photoName = photo.getFileName();
                    int index = photoName.indexOf(".");
                    photoName = photoName.substring(1, index);
                    photoFile = photo.getFileName();
                    String photoPath = "/upload/student/photo/";
                    photoFile = photoPath + photoFile;
                    String path = getServletContext().getRealPath("/") + photoPath;
                    File pathDir = new File(path);
                    if(!pathDir.exists())
                        pathDir.mkdirs();
                    System.out.println(path);
                    System.out.println(photoName);
                    System.out.println(photoFile);
                    File file = null;
                    if(!photo.isMissing())
                    {
                        System.out.println("save file");
                        com.jspsmart.upload.File _tmp = photo;
                        photo.saveAs(photoFile, 1);
                        System.out.println("save file end");
                        student.setPhotoName(photoName);
                        student.setPhotoFile(photoFile);
                    }
                    if(file != null)
                        file.delete();
                    local.remove();
                    jndiContext.close();
                    result = true;
                } else
                {
                    errorMessage = "传进来的学生学号不能为空.";
                }
            }
            catch(Exception e)
            {
                errorMessage = "当上传学生照片时出现错误.";
                System.out.println(errorMessage);
                result = false;
                e.printStackTrace();
            }
        } else
        {
            errorMessage = "您没有权利上传照片.";
        }
        if(result)
        {
            System.out.println(result);
            getServletContext().getRequestDispatcher("/student/studentdetail.jsp?StudentID=" + studentID).forward(req, res);
        } else
        {
            System.out.println("result:" + result);
            session.setAttribute("ERRORMESSAGE", errorMessage);
            getServletContext().getRequestDispatcher("/error/error.jsp").forward(req, res);
        }
    }
}