使用Blob类型将图片插入MySQL数据库，出现MySQLSyntaxErrorException异常。请问如何解决？谢谢！

我用的是MySQL Server5.0
使用的驱动是mysql-connect-java-5.0.8-bin.jar.
开发工具：eclipse j2ee 3.4

图片是index.jpg在jdbc项目根目录下，即
jdbc/index.jpg (其中index.jpg < 64KB)
jdbc/src/com/yakoo5/jdbc/JdbcUtils.java
jdbc/src/com/yakoo5/jdbc/BlobTest.java

数据库jdbc的blob_test表创建语句如下：
CREATE TABLE `jdbc`.`blob_test` (
`id` INTEGER NOT NULL AUTO_INCREMENT,
`big_bit` BLOB NOT NULL,
PRIMARY KEY (`id`)
)
ENGINE = InnoDB;

BlobTest.java源代码如下：

package com.yakoo5.jdbc;



import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;



/**

 * 2009-7-14

 * 

 * @author <a href="mailto:yakoo5@163.com">yakoo5</a>

 *

 */

public class BlogTest {



	/**

	 * @param args

	 * @throws IOException 

	 * @throws SQLException 

	 */

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

		create();



	}

	

	static void create() throws SQLException, IOException{

		Connection conn = null;

		PreparedStatement ps = null;

		ResultSet rs = null;

		

		try {

			//2.建立连接

			conn = JdbcUtils.getConnection();

			//3.创建语句

			String sql = "insert into blob_test(big_bit) values(?)";

			ps = conn.prepareStatement(sql);

			File file = new File("index.jpg");

			InputStream in = new BufferedInputStream(new FileInputStream(file));

			ps.setBinaryStream(1, in, (int)file.length());

			

			//4.执行语句

			int i = ps.executeUpdate();

			

			in.close();

			

			System.out.println("i="+i);			

		} finally {

			JdbcUtils.free(rs, ps, conn);

		}

	}



}

其中使用到的JdbcUtils.java类源代码如下：

package com.yakoo5.jdbc;



import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;



/**

 * 2009-7-12

 * 

 * @author <a href="mailto:yakoo5@163.com">yakoo5</a>

 *

 */

public final class JdbcUtils {	

	private static String url = "jdbc:mysql://localhost:3306/jdbc";

	private static String user ="root";

	private static String password = "mysql";

	

	private JdbcUtils(){		

	}

	

	/*

	 * 转载类时，加载数据库驱动

	 */

	static{

		try {

			Class.forName("com.mysql.jdbc.Driver");

		} catch (ClassNotFoundException e) {

			throw new ExceptionInInitializerError(e);

		}

	}

	

	/*

	 * 获得数据库连接

	 */

	public static Connection getConnection() throws SQLException{

		return DriverManager.getConnection(url, user, password);

	}

	

	/*

	 * 释放数据库连接

	 */

	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{

				if(conn!=null)

					try {

						conn.close();

					} catch (Exception e2) {

						e2.printStackTrace();

					}					

			}				

		}

	}

}

异常信息如下：
Exception in thread "main" com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '??<G?o?Y?ú?\'x????f?t±?ü{?G>S·,?êcê?4???÷?–?=O?è?D???\0e?~?^\'????_??ú???;' at line 1
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3283)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1604)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1519)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1504)
at com.yakoo5.jdbc.BlogTest.create(BlogTest.java:47)
at com.yakoo5.jdbc.BlogTest.main(BlogTest.java:27)

请各位帮小弟看下，多谢！