作者：乔山办公网日期：
返回目录：excel表格制作
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.sql.*;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import jxl.*;
public class SimUpdate {
private String fileName;
public ZfzSimUpdate(String fileName){
this.fileName = fileName;
}
static Map tNames;
static{
tNames = new HashMap();
}
/**
* 用于产生 数据库的 ID 值，组成 [年月日时分秒(100-999)] 总共 17 位数.
* 根据不同的表名，可保证同一秒内产生的 ID 号不重复
*/
private static String getDtime() {
String rid;
Date nd = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
rid = sdf.format(nd);
return rid;
}
public String getSeqNumber(String tableName) {
if(tableName == null || "".equals(tableName))
tableName = "GENERY";
Integer it;
// noinspection SynchronizeOnNonFinalField
synchronized(tNames){
it = (Integer)tNames.get(tableName);
if(it == null){
it = new Integer(100);
tNames.put(tableName, it);
}else{
if(it.intValue() > 998)
it = new Integer(100);
else
it = new Integer(1 + it.intValue());
tNames.put(tableName, it);
}
}
return getDtime() + String.valueOf(it);
}
private void updateDb(){
try{
Connection conn = DbPool.connectDB();
if(conn != null){
Statement stmt = conn.createStatement();
/**********************************************/
jxl.Workbook rwb = null;
try{
//构建e68a847a64363Workbook对象 只读Workbook对象
//直接从本地文件创建Workbook
//从输入流创建Workbook
InputStream is = new FileInputStream(fileName);
rwb = Workbook.getWorkbook(is);
//Sheet(术语：工作表)就是Excel表格左下角的Sheet1,Sheet2,Sheet3但在程序中
//Sheet的下标是从0开始的
//获取第一张Sheet表
Sheet rs = rwb.getSheet(0);
//获取Sheet表中所包含的总列数
int rsColumns = rs.getColumns();
//获取Sheet表中所包含的总行数
int rsRows = rs.getRows();
//获取指这下单元格的对象引用
String simNumber = "",termSeqId = "";
//指定SIM卡号及序列号
for(int i=0;i<rsRows;i++){
for(int j=0;j<rsColumns;j++){
Cell cell = rs.getCell(j,i);
if(j==0){
simNumber = cell.getContents();
}
termSeqId = "633"+simNumber;
}
String sql = "查询SQL";
int isOk = stmt.executeUpdate(sql);
if(isOk == 0 && !simNumber.equals("")){
String termId = getSeqNumber("termInf");
String insertSql = "自定义INSERT";
int isAdd = stmt.executeUpdate(insertSql);
if(isAdd > 0){
System.out.println("成功插入第"+i+"条数据");
}
}
//System.out.println("SIM卡号:"+simNumber+",序列号:"+termSeqId);
}
//以下代码为写入新的EXCEL,这里不使用,所以注释
/*
//利用已经创建的Excel工作薄创建新的可写入的Excel工作薄
jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(new File("D://Book2.xls"),rwb);
//读取第一张工作表
jxl.write.WritableSheet ws = wwb.getSheet(0);
//获取第一个单元格对象
jxl.write.WritableCell wc = ws.getWritableCell(0, 0);
//决断单元格的类型，做出相应的转化
if (wc.getType() == CellType.LABEL) {
Label l = (Label) wc;
l.setString("The value has been modified.");
}
//写入Excel对象
wwb.write();
wwb.close();
*/
}catch(Exception e){
e.printStackTrace();
}
finally{
//操作完成时，关闭对象，翻译占用的内存空间
rwb.close();
}
/*********************************************/
}
}catch(Exception e){
e.printStackTrace();
}
}
public static void main(String args[]){
DbPool dbPool = new DbPool("dbConn.cfg");//连接数据库
SimUpdate simUpdate = new SimUpdate("zfz_sim.xls");
simUpdate.updateDb();
}
}
我只用了读取XLS,写入没试,应该没问题吧,你把注释了的拿 来试一下吧
1、加入依赖的jar文件：
引用：
*mysql的jar文件
*Spring_HOME/lib/poi/*.jar
2、编写数据库链接类
package com.zzg.db;
import java.sql.Connection;
import java.sql.DriverManager;
public class DbUtils {
private static Connection conn;
static {
try {
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection("jdbc:mysql://localhost/test","root","123456");
} catch (Exception e) {
e.printStackTrace();
}
}
public static Connection getConn() {
return conn;
}
public static void setConn(Connection conn) {
DbUtils.conn = conn;
}
}
3、编写数据库操作类
package com.zzg.db;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class ExcuteData {
private PreparedStatement pstmt;
public boolean ExcuData(String sql) {
Connection conn = DbUtils.getConn();
boolean flag=false;
try {
pstmt = conn.prepareStatement(sql);
flag=pstmt.execute();
} catch (SQLException e) {
e.printStackTrace();
}
return flag;
}
}
4、编写Excel表格实体类
package com.zzg.model;
public class TableCell {
private String _name;
private String _value;
public String get_name() {
return _name;
}
public void set_name(String _name) {
this._name = _name;
}
public String get_value() {
return _value;
}
public void set_value(String _value) {
this._value = _value;
}
}
5、编写主键生成方法
package com.zzg.util;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Random;
public class GenericUtil {
public static String getPrimaryKey()
{
String primaryKey;
primaryKey = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());
Random r = new Random();
primaryKey +=r.nextInt(100000)+100000;
return primaryKey;
}
}
6、编写Excel操作类
package com.zzg.deployData;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import com.zzg.db.ExcuteData;
import com.zzg.model.TableCell;
import com.zzg.util.GenericUtil;
public class OperExcel<T extends Serializable> {
private HSSFWorkbook workbook;
private String tableName;
private Class<T> type;
private String sheetName;
public OperExcel(File excelFile, String tableName, Class<T> type,
String sheetName) throws FileNotFoundException,
IOException {
workbook = new HSSFWorkbook(new FileInputStream(excelFile));
this.tableName = tableName;
this.type = type;
this.sheetName = sheetName;
InsertData();
}
// 向表中写入数据
public void InsertData() {
System.out.println("yyy");
ExcuteData excuteData = new ExcuteData();
List<List> datas = getDatasInSheet(this.sheetName);
// 向表中添加数据之前先删除表中数据
String strSql = "delete from " + this.tableName;
excuteData.ExcuData(strSql);
// 拼接sql语句
for (int i = 1; i < datas.size(); i++) {
strSql = "insert into " + this.tableName + "(";
List row = datas.get(i);
for (short n = 0; n < row.size(); n++) {
TableCell excel = (TableCell) row.get(n);
if (n != row.size() - 1)
strSql += excel.get_name() + ",";
else
strSql += excel.get_name() + ")";
}
strSql += " values (";
for (short n = 0; n < row.size(); n++) {
TableCell excel = (TableCell) row.get(n);
try {
if (n != row.size() - 1) {
strSql += getTypeChangeValue(excel) + ",";
} else
strSql += getTypeChangeValue(excel) + ")";
} catch (RuntimeException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
//执行sql
excuteData.ExcuData(strSql);
}
}
/**
* 获得表中的数据
* @param sheetName 表格索引(EXCEL 是多表文档e5a48de588b6e799bee5baa6e997aee7ad94335,所以需要输入表索引号)
* @return 由LIST构成的行和表
*/
public List<List> getDatasInSheet(String sheetName) {
List<List> result = new ArrayList<List>();
// 获得指定的表
HSSFSheet sheet = workbook.getSheet(sheetName);
// 获得数据总行数
int rowCount = sheet.getLastRowNum();
if (rowCount < 1) {
return result;
}
// 逐行读取数据
for (int rowIndex = 0; rowIndex < rowCount; rowIndex++) {
// 获得行对象
HSSFRow row = sheet.getRow(rowIndex);
if (row != null) {
List<TableCell> rowData = new ArrayList<TableCell>();
// 获得本行中单元格的个数
int columnCount = sheet.getRow(0).getLastCellNum();
// 获得本行中各单元格中的数据
for (short columnIndex = 0; columnIndex < columnCount; columnIndex++) {
HSSFCell cell = row.getCell(columnIndex);
// 获得指定单元格中数据
Object cellStr = this.getCellString(cell);
TableCell TableCell = new TableCell();
TableCell.set_name(getCellString(
sheet.getRow(0).getCell(columnIndex)).toString());
TableCell.set_value(cellStr == null ? "" : cellStr
.toString());
rowData.add(TableCell);
}
result.add(rowData);
}
}
return result;
}
/**
* 获得单元格中的内容
*
* @param cell
* @return result
*/
protected Object getCellString(HSSFCell cell) {
Object result = null;
if (cell != null) {
int cellType = cell.getCellType();
switch (cellType) {
case HSSFCell.CELL_TYPE_STRING:
result = cell.getStringCellValue();
break;
case HSSFCell.CELL_TYPE_NUMERIC:
result = cell.getNumericCellValue();
break;
case HSSFCell.CELL_TYPE_FORMULA:
result = cell.getNumericCellValue();
break;
case HSSFCell.CELL_TYPE_ERROR:
result = null;
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
result = cell.getBooleanCellValue();
break;
case HSSFCell.CELL_TYPE_BLANK:
result = null;
break;
}
}
return result;
}
// 根据类型返回相应的值
@SuppressWarnings("unchecked")
public String getTypeChangeValue(TableCell excelElement)
throws RuntimeException, Exception {
String colName = excelElement.get_name();
String colValue = excelElement.get_value();
String retValue = "";
if (colName.equals("id")) {
retValue = "'" + GenericUtil.getPrimaryKey() + "'";
return retValue;
}
if (colName == null) {
retValue = null;
}
if (colName.equals("class_createuser")) {
retValue = "yaa101";
return "'" + retValue + "'";
}
retValue = "'" + colValue + "'";
return retValue;
}
}
7、编写调用操作Excel类的方法
package com.zzg.deployData;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
public class DeployData {
private File fileOut;
public void excute(String filepath) {
fileOut = new File(filepath);
this.deployUserInfoData();
}
public void deployUserInfoData() {
try {
new OperExcel(fileOut, "test", Object.class, "Sheet1");
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
8、编写客户端
package com.zzg.client;
import com.zzg.deployData.DeployData;
public class DeployClient {
public static void main(String[] args) {
DeployData deployData = new DeployData();
deployData.excute("D://test.xls");
}
}