java操作Excel示例

示例代码：

package com.is.dao;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;

import com.is.form.MoneyManageXlsVO;
import com.is.util.MoneyConstants;

/*
* operate account item data in excel
*/
public class MoneyManageXlsDAO {

/**
* insert a record with data from a list
*
* @param list
* @return
*/
public int insertDataBase(ArrayList<Object> list){
Connection conn = null;
PreparedStatement pstmt = null;
int iAccountId = 0;
int iResult = 0;

try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String strWebPath = MoneyConstants.getXlsPath();
String dburl = "jdbc:odbc:driver={Microsoft Excel Driver (*.xls)};DBQ=" + strWebPath +";ReadOnly=0;";
conn = DriverManager.getConnection(dburl,"","");

String vsql = "select max(cint(account_id))+1 from [account_manage$]";
pstmt = (PreparedStatement)conn.prepareStatement(vsql);
ResultSet rs = pstmt.executeQuery();
rs.next();
iAccountId = rs.getInt(1);
if(iAccountId == 0){
iAccountId = 1;
}
rs.close();
pstmt.close();
vsql = "insert into [account_manage$] ( ";
vsql += "account_id,account_name,account_type,account_parent_id";
vsql += ") values(?,?,?,?)";

pstmt = (PreparedStatement)conn.prepareStatement(vsql);
pstmt.setString(1, String.valueOf(iAccountId));
pstmt.setString(2, list.get(0).toString());
pstmt.setString(3, list.get(1).toString());
pstmt.setString(4, list.get(2).toString());

iResult = pstmt.executeUpdate();
conn.close();
} catch (ClassNotFoundException ex) {
ex.printStackTrace();
} catch (SQLException ex) {
ex.printStackTrace();
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
if (conn != null && (conn.isClosed())) {
conn.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
}
if(iResult == 0){
return 0;
}else{
return iAccountId;
}
}

/**
* query records by conditions
*
* @param strSQL
* @return
*/
public List<MoneyManageXlsVO> queryAccountList(String strSQL) {
Connection conn = null;
Statement stmt = null;
ResultSet result = null;
List<MoneyManageXlsVO> listMoneyManageVO = new ArrayList<MoneyManageXlsVO>();
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String strWebPath = MoneyConstants.getXlsPath();
String dburl = "jdbc:odbc:driver={Microsoft Excel Driver (*.xls)};DBQ=D:\\moneyrecord.xls";
conn = DriverManager.getConnection(dburl,"","");
stmt = conn.createStatement();
result = stmt.executeQuery(strSQL);
while(result.next()){
listMoneyManageVO.add(this.receiveVO(result));
}
result.close();
stmt.close();
conn.close();
} catch (ClassNotFoundException ex) {
ex.printStackTrace();
} catch (SQLException ex) {
ex.printStackTrace();
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
if (conn != null && (conn.isClosed())) {
conn.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
}
return listMoneyManageVO;
}

/**
* execute update sql
*
* @param strSQL
* @return influenced rows count
*/
public int operateDataBase(String strSQL){
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String strWebPath = MoneyConstants.getXlsPath();
String dburl = "jdbc:odbc:driver={Microsoft Excel Driver (*.xls)};DBQ=" + strWebPath +";ReadOnly=0;";
Connection conn = DriverManager.getConnection(dburl,"","");
Statement stmt = conn.createStatement();
int iResult = stmt.executeUpdate(strSQL);
stmt.close();
conn.close();
return iResult;
} catch(ClassNotFoundException ex){
ex.printStackTrace();
return 0;
} catch(SQLException ex){
ex.printStackTrace();
return 0;
}
}

private MoneyManageXlsVO receiveVO(ResultSet rs) throws SQLException {
MoneyManageXlsVO objMoneyManageVO = new MoneyManageXlsVO();
objMoneyManageVO.setAccountId(rs.getString("ACCOUNT_ID"));
objMoneyManageVO.setAccountName(rs.getString("ACCOUNT_NAME"));
objMoneyManageVO.setAccountType(rs.getString("ACCOUNT_TYPE"));
objMoneyManageVO.setAccountParentId(rs.getString("ACCOUNT_PARENT_ID"));
return objMoneyManageVO;
}

}

注：我使用的是1997-2003版Excel文件，测试通过；

对xls进行修改操作时，需在连接符中设置ReadOnly为0，详细原因可见mocrosoft帮助文档：http://smallbusiness.support.microsoft.com/zh-cn/kb/316475，若不加该参数会报错： [Microsoft]
[ODBC Excel 驱动程序] 操作必须使用一个可更新的查询；

odbc操作excle不支持delete命令，详细原因可见mocrosoft帮助文档介绍：http://office.microsoft.com/zh-cn/help/HA001173951.aspx（在文档末尾部分，建议在页面搜关键字ISAM），也可参考另一文章：/article/8901245.html；