registration_jsp.java

JSP网上书店系统 采用ACCESS数据库

  String getOptionsLOV( String sLOV, boolean isSearch, boolean isRequired, String selectedValue ) {
    String sSel = "";
    String slOptions = "";
    String sOptions = "";
    String id = "";
    String val = "";
    java.util.StringTokenizer LOV = new java.util.StringTokenizer( sLOV, ";", true);
    int i = 0;
    String old = ";";
    while ( LOV.hasMoreTokens() ) {
      id = LOV.nextToken();
      if ( ! old.equals(";") && ( id.equals(";") ) ) {
        id = LOV.nextToken();
      }
      else {
        if ( old.equals(";") && ( id.equals(";") ) ) {
          id = "";
        }
      }
      if ( ! id.equals("") )  { old = id; }

      i++;

      if (LOV.hasMoreTokens()) {
        val = LOV.nextToken();
        if ( ! old.equals(";") && (val.equals(";") ) ) {
          val = LOV.nextToken();
        }
        else {
          if (old.equals(";") && (val.equals(";"))) {
            val = "";
          }
        }
        if ( val.equals(";") ) { val = ""; }
        if ( ! val.equals("")) { old = val; }
        i++;
      }

      if ( id.compareTo( selectedValue ) == 0 ) {
        sSel = "SELECTED";
      }
      else {
        sSel = "";
      }
      slOptions += "<option value=\""+id+"\" "+sSel+">"+val+"</option>";
    }
    if (  ( i % 2 ) == 0 ) sOptions += slOptions;
    return sOptions;
  }

  String getValFromLOV( String selectedValue , String sLOV) {
    String sRes = "";
    String id = "";
    String val = "";
    java.util.StringTokenizer LOV = new java.util.StringTokenizer( sLOV, ";", true);
    int i = 0;
    String old = ";";
    while ( LOV.hasMoreTokens() ) {
      id = LOV.nextToken();
      if ( ! old.equals(";") && ( id.equals(";") ) ) {
        id = LOV.nextToken();
      }
      else {
        if ( old.equals(";") && ( id.equals(";") ) ) {
          id = "";
        }
      }
      if ( ! id.equals("") )  { old = id; }

      i++;

      if (LOV.hasMoreTokens()) {
        val = LOV.nextToken();
        if ( ! old.equals(";") && (val.equals(";") ) ) {
          val = LOV.nextToken();
        }
        else {
          if (old.equals(";") && (val.equals(";"))) {
            val = "";
          }
        }
        if ( val.equals(";") ) { val = ""; }
        if ( ! val.equals("")) { old = val; }
        i++;
      }

      if ( id.compareTo( selectedValue ) == 0 ) {
        sRes = val;
      }
    }
    return sRes;
  }


  String checkSecurity(int iLevel, javax.servlet.http.HttpSession session, javax.servlet.http.HttpServletResponse response, javax.servlet.http.HttpServletRequest request){
    try {
      Object o1 = session.getAttribute("UserID");
      Object o2 = session.getAttribute("UserRights");
      boolean bRedirect = false;
      if ( o1 == null || o2 == null ) { bRedirect = true; }
      if ( ! bRedirect ) {
        if ( (o1.toString()).equals("")) { bRedirect = true; }
        else if ( (new Integer(o2.toString())).intValue() < iLevel) { bRedirect = true; }
      }

      if ( bRedirect ) {
        response.sendRedirect("Login.jsp?querystring=" + toURL(request.getQueryString()) + "&ret_page=" + toURL(request.getRequestURI()));
        return "sendRedirect";
      }
    }
    catch(Exception e){};
    return "";
  }




static final String sFileName = "Registration.jsp";
              




  String RegAction(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, javax.servlet.http.HttpSession session, javax.servlet.jsp.JspWriter out, String sAction, String sForm, java.sql.Connection conn, java.sql.Statement stat) throws java.io.IOException {
  
    String sRegErr ="";
    try {

      if (sAction.equals("")) return "";

      String sSQL="";
      String transitParams = "";
      String primaryKeyParams = "";
      String sQueryString = "";
      String sPage = "";
      String sParams = "";
      String sActionFileName = "Default.jsp";
      String sWhere = " ";
      boolean bErr = false;
      long iCount = 0;

  
      String pPKmember_id = "";
      if (sAction.equalsIgnoreCase("cancel") ) {
        try {
          if ( stat != null ) stat.close();
          if ( conn != null ) conn.close();
        }
        catch ( java.sql.SQLException ignore ) {}
        response.sendRedirect (sActionFileName);
        return "sendRedirect";
      }

      final int iinsertAction = 1;
      final int iupdateAction = 2;
      final int ideleteAction = 3;
      int iAction = 0;

      if ( sAction.equalsIgnoreCase("insert") ) { iAction = iinsertAction; }
      if ( sAction.equalsIgnoreCase("update") ) { iAction = iupdateAction; }
      if ( sAction.equalsIgnoreCase("delete") ) { iAction = ideleteAction; }

      // Create WHERE statement


      String fldmember_login="";
      String fldmember_password="";
      String fldfirst_name="";
      String fldlast_name="";
      String fldemail="";
      String fldaddress="";
      String fldphone="";
      String fldcard_type_id="";
      String fldcard_number="";
      String fldmember_password2="";
      String fldmember_id="";

      // Load all form fields into variables
    
      fldmember_login = getParam(request, "member_login");
      fldmember_password = getParam(request, "member_password");
      fldmember_password2 = getParam(request, "member_password2");
      fldfirst_name = getParam(request, "first_name");
      fldlast_name = getParam(request, "last_name");
      fldemail = getParam(request, "email");
      fldaddress = getParam(request, "address");
      fldphone = getParam(request, "phone");
      fldcard_type_id = getParam(request, "card_type_id");
      fldcard_number = getParam(request, "card_number");
      // Validate fields
      if ( iAction == iinsertAction || iAction == iupdateAction ) {
        if ( isEmpty(fldmember_login) ) {
          sRegErr = sRegErr + "缺少用户名.<br>";
        }
        if ( isEmpty(fldmember_password) ) {
          sRegErr = sRegErr + "缺少密码.<br>";
        }
        if ( isEmpty(fldmember_password2) ) {
          sRegErr = sRegErr + "缺少验证密码.<br>";
        }
        if ( isEmpty(fldfirst_name) ) {
          sRegErr = sRegErr + "缺少姓.<br>";
        }
        if ( isEmpty(fldlast_name) ) {
          sRegErr = sRegErr + "缺少名.<br>";
        }
        if ( isEmpty(fldemail) ) {
          sRegErr = sRegErr + "缺少Email.<br>";
        }
        if ( ! isNumber(fldcard_type_id)) {
          sRegErr = sRegErr + "信用卡类型不对.<br>";
        }
        if ( ! isEmpty(fldmember_login)) {
          iCount = 0;
          if ( iAction == iinsertAction ) {
            iCount = dCountRec(stat, "members", "member_login=" + toSQL(fldmember_login, adText));
          }
          else {
            if ( iAction == iupdateAction ) {
              iCount = dCountRec( stat, "members", "member_login=" + toSQL(fldmember_login, adText) + " and not(" + sWhere + ")");
            }
          }
          if (iCount > 0) {
            sRegErr = sRegErr + "用户已存在.<br>";
          }
        }
if ( ! getParam( request, "member_password" ).equals(getParam( request,"member_password2"))) {
  sRegErr += "\n两个密码不同";
}
        if (sRegErr.length() > 0 ) {
          return (sRegErr);
        }
      }


      sSQL = "";
      // Create SQL statement

      switch (iAction) {
  
        case iinsertAction :
          
            sSQL = "insert into members (" + 
                "member_login," +
                "member_password," +
                "first_name," +
                "last_name," +
                "email," +
                "address," +
                "phone," +
                "card_type_id," +
                "card_number)" +

                " values (" + 
                toSQL(fldmember_login, adText) + "," +
                toSQL(fldmember_password, adText) + "," +
                toSQL(fldfirst_name, adText) + "," +
                toSQL(fldlast_name, adText) + "," +
                toSQL(fldemail, adText) + "," +
                toSQL(fldaddress, adText) + "," +
                toSQL(fldphone, adText) + "," +
                toSQL(fldcard_type_id, adNumber) + "," +
                toSQL(fldcard_number, adText) + ")";
          break;
  
      }

      if ( sRegErr.length() > 0 ) return sRegErr;
      try {
        // Execute SQL statement
        stat.executeUpdate(sSQL);
      }
      catch(java.sql.SQLException e) {
        sRegErr = e.toString(); return (sRegErr);
      }
  
      try {
        if ( stat != null ) stat.close();
        if ( conn != null ) conn.close();
      }
      catch ( java.sql.SQLException ignore ) {}
      response.sendRedirect (sActionFileName);

      return "sendRedirect";
    }
    catch (Exception e) {out.println(e.toString()); }
    return (sRegErr);
  }