package com.wzh.struts.action;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Timestamp;
import java.util.Date;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.wzh.dao.ManagerinfoDAO;
import com.wzh.dao.TeacherinfoDAO;
import com.wzh.po.Managerinfo;
import com.wzh.po.Teacherinfo;
import com.wzh.struts.form.*;
import com.wzh.util.MD5;
public class judge extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* Constructor of the object.
*/
public judge() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
if(request.getParameter("select1")!=null){
String str=new String();
if(((String)request.getParameter("select1")).equals("1")) str="t";
else if(((String)request.getParameter("select1")).equals("2")) str="m";
request.setAttribute("sign", str);
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/add.jsp");
dispatcher.forward(request, response);
}
else if(request.getParameter("select2")!=null){
String str=new String();
if(((String)request.getParameter("select2")).equals("1")) str="t";
else if(((String)request.getParameter("select2")).equals("2")) str="m";
request.setAttribute("sign", str);
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/update.jsp");
dispatcher.forward(request, response);
}
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
if(request.getParameter("name1")!=null){
String str=request.getParameter("name1");
StringBuffer strbuf=query(str);
request.setAttribute("result", strbuf.toString());
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/result_search.jsp");
dispatcher.forward(request, response);
}
else if(request.getParameter("name2")!=null){
Teacherinfo teacher=new Teacherinfo();
TeacherinfoDAO dao=new TeacherinfoDAO();
teacher.setName(request.getParameter("name2"));
Timestamp now=new Timestamp(new Date().getTime());
teacher.setRegistrationtime(now);
teacher.setUpdatetime(now);
boolean sign=dao.save(teacher);
if(sign==true){
StringBuffer strbuf=new StringBuffer();
strbuf.append("Store data successfully!<br><br><br><p align=right><a href=add.jsp>Back</a></p>");
request.setAttribute("result", strbuf.toString());
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/result_success.jsp");
dispatcher.forward(request, response);
}
else{
String str1="Database read error!";
request.setAttribute("errorinfo", str1);
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/dataError.jsp");
dispatcher.forward(request, response);
}
}
else if(request.getParameter("name3")!=null){
StringBuffer str=new StringBuffer();
str.append(request.getParameter("name3").trim());
boolean sign=false;
for(int i=0;i<str.length()&&sign==false;i++){
char c=str.charAt(i);
if(!Character.isDigit(c)) sign=true;
}
if(sign||request.getParameter("name3").trim().length()==0){
response.sendRedirect("dataError.jsp");
}
else{
Teacherinfo teacher=new Teacherinfo();
TeacherinfoDAO dao=new TeacherinfoDAO();
teacher.setId(new Integer(request.getParameter("name3").trim()));
teacher.setName(request.getParameter("name6"));
Timestamp now=new Timestamp(new Date().getTime());
teacher.setUpdatetime(now);
boolean sign1=dao.update(teacher);
if(sign1==true){
StringBuffer strbuf=new StringBuffer();
strbuf.append("Update teacher's information successfully!<br><br><br><p align=right><a href=update.jsp>Back</a></p>");
request.setAttribute("result", strbuf.toString());
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/result_success.jsp");
dispatcher.forward(request, response);
}
else{
String str1="Database read error!";
request.setAttribute("errorinfo", str1);
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/dataError.jsp");
dispatcher.forward(request, response);
}
}
}
else if(request.getParameter("name4")!=null){
StringBuffer str=new StringBuffer();
str.append(request.getParameter("name4").trim());
boolean sign=false;
for(int i=0;i<str.length()&&sign==false;i++){
char c=str.charAt(i);
if(!Character.isDigit(c)) sign=true;
}
if(sign||request.getParameter("name4").trim().length()==0){
response.sendRedirect("dataError.jsp");
}
else{
int id=Integer.parseInt(str.toString().trim());
String tm=(String)request.getParameter("select3");
if(tm.equals("1")){
TeacherinfoDAO td=new TeacherinfoDAO();
boolean sign1=td.delete(id);
if(sign1==true){
StringBuffer strbuf=new StringBuffer();
strbuf.append("Delete teacher successfully!<br><br><br><p align=right><a href=delete.jsp>Back</a></p>");
request.setAttribute("result", strbuf.toString());
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/result_success.jsp");
dispatcher.forward(request, response);
}
else{
String str1="Database read error!";
request.setAttribute("errorinfo", str1);
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/dataError.jsp");
dispatcher.forward(request, response);
}
}
else if(tm.equals("2")){
ManagerinfoDAO md=new ManagerinfoDAO();
boolean sign1=md.delete(id);
if
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温馨提示
从前的课程设计,由于当时编码没有统一,所以页面只能用英文的,望见谅。 利用servlet hibernate和struts做的web工程。使用的数据库SQL2000。 用法:首先打上SQL2000的SP4补丁包用来打开1433端口。在SQL2000中附加压缩包中的数据库。login.jsp为登录页面,可以用数据库中的用户登陆,也可以用wangzhenhua这个用户登录,密码是123。数据库中的密码是通过md5加密的,不是真实的密码,所以需要用上面的用户对数据库进行初始化。
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