Ajax 演示程序---企业注册

其中register.html的ajax部分可以做为一般的AJAX开发框架应用。

==========register.html==========

  
  
  

  

   
    
     
    
    
    
   

 

Ajax 演示程序

    ------ 企业注册 By Alpha

   

---

   
    
     
     
     
    
    
     
     
     
    
    
     
     
     
    
    
     
     
     
    
   

*	用户帐号:
*	企业名称:
*	用户密码:
*	确认密码:

   

      
    
   

  

==========EComBaseInfo.java==========

package ajax;

public class EComBaseInfo {
String user;
String com;
public String getCom() {
   return com;
}
public void setCom(String com) {
   this.com = com;
}
public String getUser() {
   return user;
}
public void setUser(String user) {
   this.user = user;
}
public boolean findUser(String Ruser){
   if(Ruser.equals("ghost")){
    return true;
   }else{
    return false;
   }
}
public boolean findCom(String Rcom){
   if(Rcom.equals("guoguo")){
    return true;
   }else{
    return false;
   }
}
}

==========CheckUserAndCom.java==========

package ajax;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import ajax.EComBaseInfo;

public class CheckUserAndCom extends HttpServlet {
private String msgStr = "";
String url = "";
protected void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException {

   EComBaseInfo info = new EComBaseInfo();
   String oprate = request.getParameter("oprate").trim();
   String userName = request.getParameter("userName");
   String passWord = request.getParameter("password");
   String comName = request.getParameter("comName");
   try {
    if (oprate.equals("chkUser")) {
     response.setContentType("text/html;charset=utf-8");
     if (userName.length() < 5 || userName.length() > 20) {
      msgStr = "对不起,用户名必须为字母、数字或下划线，长度为5-20个字符!";
     } else {
      boolean bTmp = info.findUser(userName); // 找查数据库中有无该用户名
      if (bTmp)
       msgStr = "对不起,此用户名已经存在,请更换用户名注册!";
      else
       msgStr = "";
     }
     response.getWriter().write(msgStr);
    } else if (oprate.equals("chkCom")){
     response.setContentType("text/html;charset=utf-8");
     if (comName.length() < 6 || comName.length() > 100) {
      msgStr = "对不起,公司名称长度为6-100个字符(不包括字符内的空格)!";
     } else {
      boolean bTmp = info.findCom(comName); // 找查数据库中有无该企业名
      if (bTmp)
       msgStr = "对不起,此企业名称已经存在,请更换企业名称注册!";
      else
       msgStr = "";
     }
     response.getWriter().write(msgStr);
    }
   } catch (Exception ex) {
   } finally {
    request.setAttribute("url", url);
   }
}
protected void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException {
   doGet(request, response);
}
}