modifystudstatuschange.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:   ModifyStudStatusChange.java

package com.saintbo.servlet.student;

import com.saintbo.entity.student.TblStudStatusChange;
import com.saintbo.javabean.sys.UserInfo;
import com.saintbo.servlet.MyExtendedServlet;
import com.saintbo.session.student.StudentSessionLocal;
import com.saintbo.session.student.StudentSessionLocalHome;
import com.saintbo.util.upload.RequestHashtable;
import com.saintbo.util.upload.UploadRequest;
import java.io.IOException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.naming.InitialContext;
import javax.servlet.*;
import javax.servlet.http.HttpSession;

public class ModifyStudStatusChange extends MyExtendedServlet
{

    public ModifyStudStatusChange()
    {
    }

    public void handle()
        throws IOException, ServletException
    {
        UserInfo userInfo = (UserInfo)session.getAttribute("USERINFO");
        int userAuthority = super.checkAuthority(userInfo, 1, 0);
        if(userAuthority != 1)
            return;
        reqInfo = UploadRequest.upload(req);
        Long rowsID = new Long((String)reqInfo.get("RowsID"));
        String studentID = "";
        String strReplyDate = (new SimpleDateFormat("yyyy/MM/dd")).format(new Date());
        String status = null;
        Date replyDate = null;
        if(userInfo.getUserType().equals(new Integer(1)))
            studentID = userInfo.getUserID();
        else
        if(userInfo.getUserType().equals(new Integer(3)))
        {
            studentID = (String)reqInfo.get("StudentID");
            strReplyDate = (String)reqInfo.get("ReplyDate");
            status = (String)reqInfo.get("Status");
        }
        String years = (String)reqInfo.get("Years");
        String termID = (String)reqInfo.get("TermID");
        String strChangeDate = (String)reqInfo.get("ChangeDate");
        String changeType = (String)reqInfo.get("ChangeType");
        String changeComments = (String)reqInfo.get("ChangeComments");
        String processID = (String)reqInfo.get("ProcessID");
        String collegeBefChange = (String)reqInfo.get("CollegeBefChange");
        String deptBefChange = (String)reqInfo.get("DeptBefChange");
        String specBefChange = (String)reqInfo.get("SpecBefChange");
        String specDirBefChange = (String)reqInfo.get("SpecDirBefChange");
        String classBefChange = (String)reqInfo.get("ClassBefChange");
        String statusBefChange = (String)reqInfo.get("StatusBefChange");
        String collegeAftChange = (String)reqInfo.get("CollegeAftChange");
        String deptAftChange = (String)reqInfo.get("DeptAftChange");
        String specAftChange = (String)reqInfo.get("SpecAftChange");
        String specDirAftChange = (String)reqInfo.get("SpecDirAftChange");
        String classAftChange = (String)reqInfo.get("ClassAftChange");
        String statusAftChange = (String)reqInfo.get("StatusAftChange");
        String replier = (String)reqInfo.get("Replier");
        TblStudStatusChange studStatusChange = null;
        String errorMessage = "";
        boolean result = false;
        if(rowsID != null)
            try
            {
                InitialContext jndiContext = new InitialContext();
                StudentSessionLocalHome home = (StudentSessionLocalHome)jndiContext.lookup("StudentSessionLocal");
                StudentSessionLocal local = home.create();
                Date changeDate;
                if(strChangeDate == null || strChangeDate.trim().equals(""))
                    changeDate = new Date();
                else
                    changeDate = DateFormat.getDateInstance().parse(strChangeDate);
                studStatusChange = local.getStudStatusChangeByID(rowsID);
                if(studStatusChange != null)
                {
                    if(userInfo.getUserType().equals(new Integer(3)))
                    {
                        if(strReplyDate == null || strReplyDate.trim().equals(""))
                            replyDate = null;
                        else
                            replyDate = DateFormat.getDateInstance().parse(strReplyDate);
                        studStatusChange.setYears(years);
                        studStatusChange.setTermID(termID);
                        studStatusChange.setChangeType(changeType);
                        studStatusChange.setChangeDate(changeDate);
                        studStatusChange.setChangeComments(changeComments);
                        studStatusChange.setProcessID(processID);
                        studStatusChange.setCollegeBefChange(collegeAftChange);
                        studStatusChange.setDeptBefChange(deptBefChange);
                        studStatusChange.setSpecBefChange(specBefChange);
                        studStatusChange.setSpecDirBefChange(specDirBefChange);
                        studStatusChange.setClassBefChange(classBefChange);
                        studStatusChange.setStatusBefChange(statusBefChange);
                        studStatusChange.setCollegeAftChange(collegeAftChange);
                        studStatusChange.setDeptAftChange(deptAftChange);
                        studStatusChange.setSpecAftChange(specAftChange);
                        studStatusChange.setSpecDirAftChange(specDirAftChange);
                        studStatusChange.setClassAftChange(classAftChange);
                        studStatusChange.setStatusAftChange(statusAftChange);
                        studStatusChange.setStatus(status);
                        studStatusChange.setReplier(replier);
                        result = true;
                    } else
                    if(userInfo.getUserType().equals(new Integer(1)))
                    {
                        String changeStatus = studStatusChange.getStatus();
                        if(changeStatus == null || changeStatus.equals("0"))
                        {
                            studStatusChange.setYears(years);
                            studStatusChange.setTermID(termID);
                            studStatusChange.setChangeType(changeType);
                            studStatusChange.setChangeDate(changeDate);
                            studStatusChange.setChangeComments(changeComments);
                            studStatusChange.setProcessID(processID);
                            studStatusChange.setCollegeBefChange(collegeAftChange);
                            studStatusChange.setDeptBefChange(deptBefChange);
                            studStatusChange.setSpecBefChange(specBefChange);
                            studStatusChange.setSpecDirBefChange(specDirBefChange);
                            studStatusChange.setClassBefChange(classBefChange);
                            studStatusChange.setStatusBefChange(statusBefChange);
                            studStatusChange.setCollegeAftChange(collegeAftChange);
                            studStatusChange.setDeptAftChange(deptAftChange);
                            studStatusChange.setSpecAftChange(specAftChange);
                            studStatusChange.setSpecDirAftChange(specDirAftChange);
                            studStatusChange.setClassAftChange(classAftChange);
                            result = true;
                        } else
                        {
                            errorMessage = "本学籍异动已经回复，您不能再修改.";
                        }
                    } else
                    {
                        errorMessage = "您没有权限修改学生的学籍异动数据.";
                    }
                } else
                {
                    errorMessage = "在数据库中找不到该学籍异动情况.";
                }
                local.remove();
                jndiContext.close();
            }
            catch(Exception e)
            {
                errorMessage = "当修改学籍异动时出现错误.";
                result = false;
                e.printStackTrace();
            }
        else
            errorMessage = "传进来的学籍异动关键字不能为空.";
        if(result)
        {
            getServletContext().getRequestDispatcher("/student/studstatuschange.jsp?RowsID=" + rowsID).forward(req, res);
        } else
        {
            session.setAttribute("ERRORMESSAGE", errorMessage);
            getServletContext().getRequestDispatcher("/error/error.jsp").forward(req, res);
        }
    }
}