从oracle中导出数据到access中，以mdb格式导出文件

@Override
public void exportMdbData(Invocation inv, Long taId, Paging page) throws Exception {

//设置表名
String tablename1="tb_09as0y4kyet2";

// 空白mdb文件路径. 直接保存在src/cn/iwoo/dataexport/common/下.
String blankMdbFilePath = "com/lzzj/prodma/controllers/archives/";
// 空白mdb文件名
String blankMdbFileName = "123.mdb";

// 新mdb文件路径
String defaultSavedMdbFilePath = "com/lzzj/prodma/controllers/archives/";
// 新mdb文件名
String defaultSavedMdbFileName = "data.mdb";
// mdb文件后缀
String defaultSavedMdbFileExtension = ".mdb";

// 需要保存到的新的mdb文件路径和名
String savedMdbFilePathAndName = defaultSavedMdbFilePath + defaultSavedMdbFileName;

//将空白mdb文件拷贝到特定目录
InputStream is = this.getClass().getClassLoader().getResourceAsStream(blankMdbFilePath + blankMdbFileName);
savedMdbFilePathAndName=getClass().getClassLoader().getResource("/").getPath()+savedMdbFilePathAndName;
OutputStream out = new FileOutputStream(savedMdbFilePathAndName);
byte[] buffer = new byte[1024];
int numRead;
while ((numRead = is.read(buffer)) != -1) {
out.write(buffer, 0, numRead);
}
is.close();
out.close();

//开始从oracle取数据
Connection conn =null;
PreparedStatement ps=null;
ResultSet rs =null;
String createTableSql1="";//一个建表语句
Map map1=new HashMap();//一个map存一个表的字段
List<Map> list1 = new ArrayList<Map>();//一个list存一个表的记录
int mapSize1=0;//一个表的字段个数
String value="";//用于拼接sql
try{

Class.forName("oracle.jdbc.driver.OracleDriver");
conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.3.157:1521:ORCL", "pde", "pde");
map1=getCols(conn,ps,rs,tablename1);//map中存有该表中的所有字段
mapSize1=map1.size();
//拼接access中的建表sql语句
createTableSql1=createTableSql(tablename1,map1);//建表sql

String sql2="select * from "+tablename1;//提取ORACLE表数据的sql
ps = conn.prepareStatement(sql2);
rs = ps.executeQuery();
String aa="";
String bb="";
while (rs.next()) {
Map dateMap=new HashMap();//一条记录一个dateMap
for(int z=1;z<=mapSize1;z++){
aa=String.valueOf(map1.get(z+""));
bb=rs.getString(z)==null?"":rs.getString(z);
dateMap.put(aa, bb);
}
list1.add(dateMap);
}
//结束从oracle取数据
}catch(Exception e){
e.printStackTrace();
}finally{
// 关闭记录集
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
e.printStackTrace();
}
}

// 关闭声明
if (ps != null) {
try {
ps.close();
} catch (SQLException e) {
e.printStackTrace();
}
}

// 关闭链接对象
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}

//打开对mdb文件的jdbc-odbc连接
Connection connection=null;
Statement statement=null;
try{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ="+ savedMdbFilePathAndName.substring(1).trim(); //, *.accdb
connection = DriverManager.getConnection(database);
statement = connection.createStatement();

statement.execute(createTableSql1);   //创建ACCESS表sql
String insertSql="";
int listSize=list1.size();
//拼接access中的insert语句
for(int x=0;x<listSize;x++){
insertSql="insert into "+tablename1+" values(";
for(int k=1;k<=mapSize1;k++){
value=String.valueOf(list1.get(x).get(map1.get(k+"")));
if(k==mapSize1){

4000
insertSql+="'"+value+"');";
}else{
insertSql+="'"+value+"',";
}

}
statement.execute(insertSql);
}
//1.设置文件ContentType类型，这样设置，会自动判断下载文件类型
inv.getResponse().setContentType("multipart/form-data");
//2.设置文件头：最后一个参数是设置下载文件名(假如我们叫data.mdb)
inv.getResponse().setHeader("Content-Disposition", "attachment;fileName="+"data.mdb");
File file = new File(savedMdbFilePathAndName);
OutputStream out1;
FileInputStream inputStream = new FileInputStream(file);
//3.通过response获取ServletOutputStream对象(out)
out1 = inv.getResponse().getOutputStream();
try {

int b = 0;
byte[] buffer1 = new byte[8192];
while (b != -1){
b = inputStream.read(buffer1);
//4.写到输出流(out)中
out1.write(buffer1,0,b);
}

} catch (IOException e) {
e.printStackTrace();
}finally{
out1.flush();
inputStream.close();
out1.close();
file.delete();
}
}catch(Exception e){
e.printStackTrace();
}finally{
// 关闭声明
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {
e.printStackTrace();
}
}

//关闭连接
if (connection != null) {
try {
connection.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}

}

public Map getCols(Connection conn,PreparedStatement ps,ResultSet rs,String tableNmae) throws SQLException{//获取某张表中的所有字段
Map map=new HashMap();

String sql1="select  COLUMN_NAME from user_tab_cols where table_name=upper('"+tableNmae+"') order by column_id";//获取该表中的所有字段
ps = conn.prepareStatement(sql1);
rs = ps.executeQuery();

int j=0;

while (rs.next()) {
j++;
map.put(j+"", rs.getString(1));//存表中的所有字段
}

return map;
}

public String createTableSql(String tableNmae,Map map){
String createTableSql="CREATE TABLE "+tableNmae+" ( ";
int mapSize=map.size();//字段个数
String value="";
for(int k=1;k<=mapSize;k++){
value=String.valueOf(map.get(k+""));
if(k==mapSize){
createTableSql+=value+" Memo );";
}else{
createTableSql+=value+" Memo ,";
}

}
return createTableSql;
}

封装的方法比较笨，待优化