将图片存入数据库【java实现】

import java.io.FileInputStream;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCTest {

public static void main(String[] args) throws IOException  {

String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://127.0.0.1:3306/tuzi?characterEncoding=UTF-8";
String user = "root";
String pass = "";
try
{
Class.forName(driver);    //加载驱动
//连接数据库
Connection conn = DriverManager.getConnection(url,user,pass);
if(!conn.isClosed())
{
System.out.println("Connection Success!");
//statement 用来执行sql语句
Statement statement = conn.createStatement();
//要执行的sql
String sql = "select * from BST";
//结果集
ResultSet rs = statement.executeQuery(sql);
String tuzi = null;
String luobo = null;
while(rs.next())
{
tuzi = rs.getString("tuzi");        //tuzi是个int型 主键
luobo = rs.getString("luobo");        //这个是blob 型
System.out.println(tuzi +" " +luobo);
}
/*        这个不行....
FileInputStream fis = new FileInputStream("C:\\6140\\mysql\\src\\tuzi.jpeg");
byte[] rtt = new byte[fis.available()];
fis.read(rtt);
fis.close();
*/
String sqlxx = "insert into BST(tuzi,luobo) values (?,?)";
PreparedStatement pstmt=conn.prepareStatement(sqlxx);
FileInputStream fi=new FileInputStream("C:\\6140\\mysql\\src\\tuzi.jpeg");
pstmt.setInt(1, 521521);
//pstmt.setBinaryStream(2,fi,fi.available());    也行
pstmt.setBlob(2,fi,fi.available());               //也行
pstmt.execute();
conn.close();
}
}catch(ClassNotFoundException e)
{
} catch (SQLException e) {
e.printStackTrace();
}
}
}