📄 getmoney.java
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package pp;
import java.text.SimpleDateFormat;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.ResultSet;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class GetMoney extends HttpServlet {
/**
* Constructor of the object.
*/
public GetMoney() {
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 {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
response.setContentType("text/html;charset=gb2312");
PrintWriter out = response.getWriter();
String accountNo=request.getParameter("AccountID");
double money=Double.parseDouble(request.getParameter("money"));
String type=new String(request.getParameter("select").getBytes("ISO8859_1"));
String password=request.getParameter("password");
dbconn conn=new dbconn();
ResultSet rs=null;
String sql="select BALANCE from savingsAccount where ACCOUNTNUMBER='"+accountNo+"'";
double balance=0;
try{
rs=conn.executeQuery("select ACCOUNT_DISCRIM,PASSWORD from ACCOUNT where ACCOUNTNUMBER='"+accountNo+"'");
if(rs.next()==true){
if(rs.getString("PASSWORD").equals(password)){
if(rs.getString("ACCOUNT_DISCRIM").equals(type)){
rs=conn.executeQuery(sql);
rs.next();
balance=rs.getDouble("BALANCE");
if(balance>=money){
if(type.equals("定期帐户")){
String fd="insert into FDACCOUNT (ID,ACCOUNTNUMBER,AMOUNT,ENDINGTIME)values('"+new Date().getTime()+"','"+accountNo+"',"+-money+",'"+df.format(new Date())+"')";
conn.executeUpdate(fd);
System.out.println(fd);
}else if(type.equals("活期帐户")){
String rd="insert into RDACCOUNT (ID,ACCOUNTNUMBER,AMOUNT15,TIME)values('"+new Date().getTime()+"','"+accountNo+"',"+-money+",'"+df.format(new Date())+"')";
System.out.println(rd);
conn.executeUpdate(rd);
}
balance=balance-money;
conn.executeUpdate("update savingsAccount set balance="+balance+" where ACCOUNTNUMBER='"+accountNo+"'");
conn.executeUpdate("insert into TRANSACTION (TRANSACTIONID,DATEOFTRANSACTION,AMOUNT,TYPEOFTRANSACTION,OWNEDTRANSACTIONS_ACCOUNTNUM19)values('"+new Date().getTime()+"','"+df.format(new Date())+"',"+money+",'支出','"+accountNo+"')");
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE>");
out.println("</HEAD>");
out.println(" <BODY>");
out.println("操作已成功!<BR>");
out.println(" </BODY>");
out.println("</HTML>");
}else{
conn.conn.rollback();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE>");
out.println("</HEAD>");
out.println(" <BODY>");
out.println("余额不足!<BR>");
out.println(" </BODY>");
out.println("</HTML>");
}
}else{
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE>");
out.println("</HEAD>");
out.println(" <BODY>");
out.println("帐户类型与账号不匹配！<BR>");
out.println(" </BODY>");
out.println("</HTML>");
}
}else{
conn.conn.rollback();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE>");
out.println("</HEAD>");
out.println(" <BODY>");
out.println("密码错误!<BR>");
out.println(" </BODY>");
out.println("</HTML>");
}
}else{
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE>");
out.println("</HEAD>");
out.println(" <BODY>");
out.println("该账户不存在！<BR>");
out.println(" </BODY>");
out.println("</HTML>");
}
conn.closeConn();
}catch(Exception e){
e.printStackTrace();
}
}
/**
* 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 {
doGet(request,response);
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
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