addpollanswer.java

一个关于商业的网站

package com.everstar.poll;

/**
 * Title:        webstar
 * Description:  this is the webstar project
 * $ Modified Record:
 * $2003.4.6: Created.
 * Copyright (C) 2003 www.studyjava.com All rights reserved.
 * @version 1.0
 */
import java.util.*;
import java.sql.*;
import java.io.*;

import javax.servlet.*;
import javax.servlet.http.*;
import com.everstar.database.*;

public class AddPollAnswer {
  private int pollId = 0;
  private PollAnswer pollAnswer = null;
  private String error = null;
  private Database dbConn = null;
  private String nextURL = null;

  public int getPollId(){return pollId;}
  public void setPollId(int newPollId){ pollId = newPollId;}

  public PollAnswer getPollAnswer() { return pollAnswer;}
  public void setPollAnswer(PollAnswer newPollAnswer) { pollAnswer = newPollAnswer;}

  public void setError(String newError) { error = newError;}
  public String getError() { return error;}

  public Database getDbConn() { return(dbConn); }
  public void   setDbConn(Database newDbConn) { dbConn = newDbConn; }

  public String getNextURL() { return((nextURL != null) ? nextURL : ""); }
  public void setNextURL(String nextURL_) { nextURL = nextURL_; }

  public void init() throws ServletException {
    if (dbConn == null) error = "No Database Connection";
    if (pollAnswer == null) error = "No PollAnswer Information";
    if (pollId <= 0) error = "No Poll Id";
    int customerId = 0;
    try {
      String sqlstr = "select max(opinNo) + 1 from themeOpinion where themeNo = " + pollId;
      ResultSet rs = dbConn.select(sqlstr);
      if (rs.next()){
        customerId = rs.getInt(1) ;
        if(customerId <= 0){
            customerId = 1;
         }
      }
      rs.close();
      sqlstr = "insert into themeOpinion(themeNo,opinNo,opintext,selectcount) values( " +
        pollId + "," + customerId + ",'" + pollAnswer.getAnswerText() + "',0)";
      dbConn.insert(sqlstr);
    } catch (Exception e) {
      error = "SQL Error";
     }
  }

  public AddPollAnswer() {
  }
}