jsp留言板源代码四: 给jsp初学者.

其中的opDb.java
============================================
package ymbean;

import java.sql.*;
import java.util.*;
import java.text.*;
import com.chinazjj.sql.dsql;
import com.chinazjj.util.dutil;

//其他的包dsql,dutil中的内容我就不再贴了,在本文件中用到的两个函数都很简

单
public class opDb {

private String inquire_value="",inquire_item="",disptype="",inqtyp

e="";
private String inquire_num="",inquire_addr="",inquire_name="";
private dutil ldutil=new dutil();
public opDb() {

}

public void setinquire_item(String name) { inquire_item= name

;}
public void setinquire_value( String name ) { inquire_value = ldut

il.chineseToUnicode(name);}
public void setdisptype(String name) { disptype=name;}
public void setinqtype(String name) { inqtype=name;}

public void setinquire_num( String name ) { inquire_num = ldutil.c

hineseToUnicode(name);}
public void setinquire_addr( String name ) { inquire_addr = ldutil

.chineseToUnicode(name);}
public void setinquire_name( String name ) { inquire_name = ldutil

.chineseToUnicode(name);}

public String getinquire_dndata()
{
return "";
}

public ResultSet executeQuery(String sql)
{
ResultSet rs = null;
Statement lstmt = null;
try {
lstmt = connectdb();
rs = lstmt.executeQuery(sql);
System.out.println("executeQuery: "+sql);
} catch(SQLException ex) { System.err.println("executeQuery: " +

ex.getMessage());}
return rs;
}

public Statement getStmt()
{
Statement lstmt = null;
lstmt = connectdb();
return lstmt;
}

public String executeUpdate(String sql)
{
ResultSet rs = null;
Statement lstmt = null;
try {
lstmt = connectdb();
lstmt.executeUpdate(sql);
System.out.println("executeUpdate: "+sql);
lstmt.executeUpdate("commit");
}
catch(SQLException ex) { System.err.println("executeQuery: " + e

x.getMessage());
return(ex.getMessage());
}
return("executeUpdate ok");
}

public Statement connectdb()
{

Statement lstmt=null;
Connection conn=null;

final String connect_string="jdbc:Oracle(大型网站数据库平台):thin:scott/tiger@192.168.

0.1:1521:clubdb";
final String driver_string="Oracle(大型网站数据库平台).jdbc.driver.Oracle(大型网站数据库平台)Driver";
dsql MySQL(和PHP搭配之最佳组合)=new dsql();
lstmt=MySQL(和PHP搭配之最佳组合).dconnectdb(driver_string,connect_string);
return lstmt;
}

public Statement connectdb(String connect_string)
{
Statement lstmt=null;
Connection conn=null;

final String driver_string="Oracle(大型网站数据库平台).jdbc.driver.Oracle(大型网站数据库平台)Driver";
dsql MySQL(和PHP搭配之最佳组合)=new dsql();
lstmt=MySQL(和PHP搭配之最佳组合).dconnectdb(driver_string,connect_string);
return lstmt;
}


//=========other function ===================================

public String getCurrentDate(String ldateform)
{
return(new SimpleDateFormat(ldateform).format(new java.util.Date(

)));
}

//========"/n" to "<br>" =====================================
//去掉奇怪的：
public String removeComment(String Content){
String makeContent=new String();
StringTokenizer strToken=new StringTokenizer(Content," ");
String tempToken=null;

while(strToken.hasMoreTokens()){
tempToken=strToken.nextToken();
if(tempToken.indexOf(":")!=0)
makeContent=makeContent+tempToken+" ";