📄 registerservlet.java
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package ebookshop.servlet;
import javax.servlet.ServletException;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class RegisterServlet extends HttpServlet
{
public void doPost(HttpServletRequest req,HttpServletResponse resp)
throws ServletException,IOException
{
req.setCharacterEncoding("gb2312");
String userName=req.getParameter("userName");
String passWord=req.getParameter("passWord1");
System.out.println(passWord);
String passWordTow=req.getParameter("passWord2");
String realName=req.getParameter("realName");
System.out.println(realName);
String sex=req.getParameter("sex");
String email=req.getParameter("email");
String response="";
if(!passWord.equals("") && passWord.equals(passWordTow) && !userName.equals(""))
{
RegisterDB rdb=new RegisterDB();
response=rdb.InsertData(userName, passWord, realName, sex, email);
//System.out.println(response);
if(response.equals("error"))
{
resp.setContentType("text/html;charset=gb2312");
PrintWriter out = resp.getWriter();
out.println("<html><head><title>Sorry!</title></head>");
out.println("<body><div align='center'><h4>很抱歉!"+userName+"此用户名已存在了."+"</h4>"+
"<a href='/ebookShop/register.jsp'><h2><b> 重新注册</b></h2></a>");
}
else
{
resp.setContentType("text/html;charset=gb2312");
PrintWriter out = resp.getWriter();
out.println("<html><head><title>Succeed</title></head>");
out.println("<body><div align='center'><h4>"+userName+"用户注册成功,你的ID是:"+response+"</h4>"+
"<a href='/ebookShop/login.jsp'><h2><b>请登陆.</b></h2></a>");
}
}
else
{
resp.setContentType("text/html;charset=gb2312");
PrintWriter out = resp.getWriter();
out.println("<html><head><title>Sorry!</title></head>");
out.println("<body><div align='center'><h4>很抱歉!您两次输入的密码不一致!或者密码没有输入!"+"</h4>"+
"<a href='/ebookShop/register.jsp'><h2><b> 重新注册</b></h2></a>");
}
}
public void doGet(HttpServletRequest req,HttpServletResponse resp)
throws ServletException,IOException
{
doPost(req,resp);
}
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