a_dishadd.jsp

酒店前台的JAVA

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%@ include file="Connections/conn.jsp" %>
<%
// *** Edit Operations: declare variables

// set the form action variable
String MM_editAction = request.getRequestURI();
if (request.getQueryString() != null && request.getQueryString().length() > 0) {
  String queryString = request.getQueryString();
  String tempStr = "";
  for (int i=0; i < queryString.length(); i++) {
    if (queryString.charAt(i) == '<') tempStr = tempStr + "&lt;";
    else if (queryString.charAt(i) == '>') tempStr = tempStr + "&gt;";
    else if (queryString.charAt(i) == '"') tempStr = tempStr +  "&quot;";
    else tempStr = tempStr + queryString.charAt(i);
  }
  MM_editAction += "?" + tempStr;
}

// connection information
String MM_editDriver = null, MM_editConnection = null, MM_editUserName = null, MM_editPassword = null;

// redirect information
String MM_editRedirectUrl = null;

// query string to execute
StringBuffer MM_editQuery = null;

// boolean to abort record edit
boolean MM_abortEdit = false;

// table information
String MM_editTable = null, MM_editColumn = null, MM_recordId = null;

// form field information
String[] MM_fields = null, MM_columns = null;
%>
<%
// *** Insert Record: set variables

if (request.getParameter("MM_insert") != null && request.getParameter("MM_insert").toString().equals("form1")) {

  MM_editDriver     = MM_conn_DRIVER;
  MM_editConnection = MM_conn_STRING;
  MM_editUserName   = MM_conn_USERNAME;
  MM_editPassword   = MM_conn_PASSWORD;
  MM_editTable  = "dbo.dish";
  MM_editRedirectUrl = "dishShow.jsp";
  String MM_fieldsStr = "textfield|value|textfield2|value|textfield3|value|textfield4|value";
  String MM_columnsStr = "dish_NO|',none,''|dish_name|',none,''|price|',none,''|trait|',none,''";

  // create the MM_fields and MM_columns arrays
  java.util.StringTokenizer tokens = new java.util.StringTokenizer(MM_fieldsStr,"|");
  MM_fields = new String[tokens.countTokens()];
  for (int i=0; tokens.hasMoreTokens(); i++) MM_fields[i] = tokens.nextToken();

  tokens = new java.util.StringTokenizer(MM_columnsStr,"|");
  MM_columns = new String[tokens.countTokens()];
  for (int i=0; tokens.hasMoreTokens(); i++) MM_columns[i] = tokens.nextToken();

  // set the form values
  for (int i=0; i+1 < MM_fields.length; i+=2) {
    MM_fields[i+1] = ((request.getParameter(MM_fields[i])!=null)?(String)request.getParameter(MM_fields[i]):"");
  }
 
  // append the query string to the redirect URL
  if (MM_editRedirectUrl.length() != 0 && request.getQueryString() != null) {
    MM_editRedirectUrl += ((MM_editRedirectUrl.indexOf('?') == -1)?"?":"&") + request.getQueryString();
  }
}
%>
<%
// *** Insert Record: construct a sql insert statement and execute it

if (request.getParameter("MM_insert") != null) {

  // create the insert sql statement
  StringBuffer MM_tableValues = new StringBuffer(), MM_dbValues = new StringBuffer();
  for (int i=0; i+1 < MM_fields.length; i+=2) {
    String formVal = MM_fields[i+1];
    String elem;
    java.util.StringTokenizer tokens = new java.util.StringTokenizer(MM_columns[i+1],",");
    String delim    = ((elem = (String)tokens.nextToken()) != null && elem.compareTo("none")!=0)?elem:"";
    String altVal   = ((elem = (String)tokens.nextToken()) != null && elem.compareTo("none")!=0)?elem:"";
    String emptyVal = ((elem = (String)tokens.nextToken()) != null && elem.compareTo("none")!=0)?elem:"";
    if (formVal.length() == 0) {
      formVal = emptyVal;
    } else {
      if (altVal.length() != 0) {
        formVal = altVal;
      } else if (delim.compareTo("'") == 0) {  // escape quotes
        StringBuffer escQuotes = new StringBuffer(formVal);
        for (int j=0; j < escQuotes.length(); j++)
          if (escQuotes.charAt(j) == '\'') escQuotes.insert(j++,'\'');
        formVal = "'" + escQuotes + "'";
      } else {
        formVal = delim + formVal + delim;
      }
    }
    MM_tableValues.append((i!=0)?",":"").append(MM_columns[i]);
    MM_dbValues.append((i!=0)?",":"").append(formVal);
  }
  MM_editQuery = new StringBuffer("insert into " + MM_editTable);
  MM_editQuery.append(" (").append(MM_tableValues.toString()).append(") values (");
  MM_editQuery.append(MM_dbValues.toString()).append(")");
  
  if (!MM_abortEdit) {
    // finish the sql and execute it
    Driver MM_driver = (Driver)Class.forName(MM_editDriver).newInstance();
    Connection MM_connection = DriverManager.getConnection(MM_editConnection,MM_editUserName,MM_editPassword);
    PreparedStatement MM_editStatement = MM_connection.prepareStatement(MM_editQuery.toString());
    MM_editStatement.executeUpdate();
    MM_connection.close();

    // redirect with URL parameters
    if (MM_editRedirectUrl.length() != 0) {
      response.sendRedirect(response.encodeRedirectURL(MM_editRedirectUrl));
      return;
    }
  }
}
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>后台添加菜单页面</title>
<STYLE>
    #Layer1 {
        Z-INDEX: 1;
        WIDTH: 118px;
        POSITION: absolute;
        HEIGHT: 28px
    }
    body {
	
    }
</STYLE>
</head>

<body>
<table width="100%" border="1" cellpadding="0" cellspacing="0" bordercolor="#B98631" style="FONT-SIZE: 14px; COLOR: #323229">
  <tr>
    <th align="left" bgcolor="#B98631" scope="col">&nbsp;后台 添加菜单</th>
  </tr>
  <tr>
    <td><form id="form1" name="form1" method="POST" action="<%=MM_editAction%>">
      <table width="100%" border="0" cellspacing="0" cellpadding="0">
        <tr>
          <td>&nbsp;菜肴编号</td>
          <td><label>
            <input type="text" name="textfield" />
          </label></td>
        </tr>
        <tr>
          <td>&nbsp;菜肴名称</td>
          <td><label>
            <input type="text" name="textfield2" />
          </label></td>
        </tr>
        <tr>
          <td>&nbsp;菜肴价格</td>
          <td><label>
            <input type="text" name="textfield3" />
          </label></td>
        </tr>
        <tr>
          <td>&nbsp;菜肴特色</td>
          <td><label>
            <input type="text" name="textfield4" />
          </label></td>
        </tr>
        <tr>
          <td><label>&nbsp;
            <input type="submit" name="Submit" value="提交" />
          </label></td>
          <td><label>
            <input type="reset" name="Submit2" value="重置" />
          </label></td>
        </tr>
      </table>
        
      <input type="hidden" name="MM_insert" value="form1">
</form>
    </td>
  </tr>
</table>
</body>
</html>