jdbc 连接 mysql

package com.ssh.util;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;


public final class JDBCUtils {
    private JDBCUtils(){}
    
    private static String url="jdbc:mysql://localhost:3306/zinc";
    private static String user="root";
    private static String password="p";
    
    static{
        try {
            Class.forName("com.mysql.jdbc.Driver");
        } catch (ClassNotFoundException e) {
            throw new ExceptionInInitializerError(e);
        }
    }
    
    public static Connection getConnection() throws SQLException
    {
        return DriverManager.getConnection(url, user, password);        
    }
    
    public static void free(ResultSet rs,Statement st,Connection conn)
    {
        try{
            if(rs!=null)
                rs.close();
        }catch(SQLException e){
            e.printStackTrace();
        }finally{
            try{
                if(st!=null)
                    st.close();
            }catch(SQLException e){
                e.printStackTrace();
            }finally{
                try{
                    if(conn!=null)
                        conn.close();
                }catch(SQLException e){
                    e.printStackTrace();
                }        
            }
        }
    }
}

package com.ssh.util;

import java.sql.ResultSet;

import com.mysql.jdbc.Connection;
import com.mysql.jdbc.Statement;

public class WordCensorImport {
    public static void main(String[] args) {
        try {
            WordCensorImport.JDBCUtilsTest();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    
    public static void JDBCUtilsTest() throws Exception
        {
            Connection conn=null;
            Statement st=null;
            ResultSet rs=null;
            
            try{
                conn=(Connection) JDBCUtils.getConnection();
                String [] wordCensor = textUtil.parser("E://keywords.txt");
                String sql="";
                for(int i=0; i < wordCensor.length; i++){
                    //INSERT INTO wordcensor (keyword) values ("aa")
                    sql = "INSERT INTO wordcensor (keyword) values ('" + wordCensor[i] +"')";
                    System.out.println(sql);
                    st=(Statement) conn.createStatement();
                    st.execute(sql);
                    st=null;
                    rs=null;
                }
                
                
//              st=(Statement) conn.createStatement();
//              rs=st.executeQuery("select * from test1");
//              while(rs.next())
//              {
//                  System.out.println(rs.getObject(1)+"/t"+rs.getObject(2));
//              }
            }finally{
                JDBCUtils.free(rs, st, conn);
            }    
            
       }

}