counter.java

来自「用最近的dojo1.2.1制作前端的ajax购书网站」· Java 代码 · 共 40 行

package server.counter;
import java.util.*;
import server.database.Operation;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
 * @author user
 *
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public class Counter {
	
	Date today=new Date();
	Operation op=new Operation();
	ResultSet rs=null;
	void readDate()
	throws SQLException,InstantiationException,IllegalAccessException,ClassNotFoundException
	
	{
		String sql="select * from Counter where date="+today;
		rs=op.select(sql);
		if(rs==null)
		{String sqlI="Insert into Counter(date,times) values("+today+','+'1';
		op.IDU(sqlI);
		}
			
		
	}
		
		
		
	
	
	

}