參考：http://blog.csdn.net/qq_40576686/article/details/78618846，只做了一些小的修改。
java把excel數據寫入Oracle數據庫，此處需要引入兩個文件：ojdbc14.jar，jxl-2.6.10.jar，,excel文件內容與數據庫內表字段對應,此處注意：(excel版本太高了 報錯：Exception in thread "main" jxl.read.biff.BiffException: Unable to recognize，把文件保存成excel 97-2003即可)
另外，excel中數據量有些多時，代碼循環體內，不能帶有數據庫連接的創建及關閉，否則會導致連接錯誤：
Listener refused the connection with the follow
ing error:
ORA-12519, TNS:no appropriate service handler found
The Connection descriptor used by the client was:
/**
* excel數據導入到oracle
* @author
*
*/
public class excelToOracle {
public static void main(String[] args) throws Exception {
excelToOracle in = new excelToOracle();
// excel文件路徑，數據庫表名
in.insert("D:/BM_SPFL_TEST.xls","BM_SPFL");
}
/**
*
* @param path
* 要解析的excel文件路徑
* @param dataTable
* 要寫入到數據庫中的表名
* @throws BiffException
* @throws IOException
* @throws SQLException
*/
public void insert(String path,String dataTable) throws Exception{
File file = new File(path);
// 創建新的Excel 工作簿
Workbook rwb = null;
rwb = Workbook.getWorkbook(file);
// 得到工作簿中的第一個表索引即為excel下的sheet1,sheet2,sheet3...
Sheet sheet = rwb.getSheets()[0];
int rsColumns = sheet.getColumns();// 列數
int rsRows = sheet.getRows();// 行數
String simNumber = "" ;//每個單元格中的數據
DBUtils jdbc=new DBUtils();
// 獲取數據庫連接,避免循環體內多次調用、關閉連接，導致報數據庫連接錯誤
jdbc.getConnection();
String str="";//拼接要插入的列
for (int j = 0; j <rsColumns; j++) {
Cell cell = sheet.getCell(j, 0);
simNumber = cell.getContents();
if(j==rsColumns-1){
str += simNumber ;
}else{
str += simNumber+",";
}
}
for (int i = 1; i < rsRows; i++) {
String sql = "insert into "+dataTable+"("+str+") values(";//拼接sql
System.out.println(str);
for (int j = 0; j < rsColumns; j++) {
Cell cell = sheet.getCell(j, i);
simNumber = cell.getContents();
if(j==rsColumns-1){
sql += "'"+ simNumber+"'" ;
}else{
sql +="'"+ simNumber+"',";
}
}
sql += " )";
jdbc.executeUpdate(sql);//執行sql
}
jdbc.closeStmt();
jdbc.closeConnection();
}
}
/**
* Oracle數據庫連接
*
* @author
*/
public class DBUtils {
private Connection conn = null;
private Statement stmt = null;
private ResultSet rs = null;
/** Oracle數據庫連接 URL */
private final static String DB_URL = "jdbc:oracle:thin:@192.168.201.106:1521:orcl";
/** Oracle數據庫連接驅動 */
private final static String DB_DRIVER = "oracle.jdbc.driver.OracleDriver";
/** 數據庫用戶名 */
private final static String DB_USERNAME = "xnw_dev";
/** 數據庫密碼 */
private final static String DB_PASSWORD = "xnw_dev";
/**
* 獲取數據庫連接
*
* @return
*/
public Connection getConnection() {
/** 聲明Connection連接對象 */
Connection conn = null;
try {
/** 使用 Class.forName()方法自動創建這個驅動程序的實例且自動調用DriverManager來注冊它 */
Class.forName(DB_DRIVER);
/** 通過 DriverManager的getConnection()方法獲取數據庫連接 */
conn = DriverManager
.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
stmt = conn.createStatement();
} catch (Exception ex) {
ex.printStackTrace();
}
return conn;
}
/**
* 查詢數據部分
*
* @return ResultSet
*/
public ResultSet executeQuery(String sqlStr) {
if (sqlStr == null || sqlStr.length() == 0)
return null;
try {
this.getConnection();
rs = stmt.executeQuery(sqlStr);
return rs;
} catch (SQLException ex) {
ex.printStackTrace();
return null;
}
}
/**
* 更新數據部分
*
* @return 更新是否成功
*/
public boolean executeUpdate(String sqlStr) {
if (sqlStr == null || sqlStr.length() == 0)
return false;
try {
// 此處及finally內，不進行建立數據庫連接及關閉，避免被循環調用時，多次創建占用數據庫連接導致報錯
//this.getConnection();
stmt.executeUpdate(sqlStr);
return true;
} catch (SQLException ex) {
ex.printStackTrace();
return false;
} finally {
/* try {
if (stmt != null) {
stmt.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
try {
if (conn != null) {
conn.close();
}
} catch (SQLException e) {
e.printStackTrace();
}*/
}
}
public void closeStmt() {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 關閉數據庫連接
*
* @param connect
*/
public void closeConnection() {
try {
if (conn != null) {
/** 判斷當前連接連接對象如果沒有被關閉就調用關閉方法 */
if (!conn.isClosed()) {
conn.close();
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
}