java大对象存取的简单实现的代码

将开发过程中经常用的一些内容片段做个珍藏，下面资料是关于java大对象存取的简单实现的内容。

package info.itlanguageexpress.LargeObject;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class MySqlLargeObjectAccess {

public static String DRIVER = "org.gjt.mm.mysql.Driver";public static String USER = "root";public static String PASSWORD = "your password";public static void main(String[] args) throws Exception {    Connection conn = null;    try {        Class.forName(DRIVER);        conn = DriverManager.getConnection(URL, USER, PASSWORD);        insertWordFileToMySql(conn);        fetchWordFileFromMySql(conn);    } catch (Exception ex) {        ex.printStackTrace(System.out);    } finally {        try {            conn.close();        } catch (Exception ex) {        }    }}public static void insertWordFileToMySql(Connection conn)        throws SQLException, IOException {    PreparedStatement pstm = conn            .prepareStatement("insert into wordInputTest values (?,?)");    pstm.setString(1, "docx1");    InputStream in = new FileInputStream("F:" + File.separator            + "test1.docx");    pstm.setBinaryStream(2, in, in.available());    pstm.executeUpdate();    pstm.close();}public static void fetchWordFileFromMySql(Connection conn)        throws SQLException, IOException {    PreparedStatement pstm = conn    pstm.setString(1, "docx1");    ResultSet rs = pstm.executeQuery();    int count = 1;    while(rs.next()) {        InputStream in = rs.getBinaryStream("file");        FileOutputStream out = new FileOutputStream("F:" + File.separator + "testcopy" + count + ".docx");        byte[] b = new byte[1024];        int len = 0;        while ((len = in.read(b)) != -1) {            out.write(b, 0, len);            out.flush();        }        out.close();        in.close();        count++;    }    rs.close();    pstm.close();}

}