Codeigniter(CI)结合PHPExcel类完成数据导入
1. 安装PHPExcel到Codeigniter
1) 解压压缩包里的Classes文件夹中的内容到application\libraries\目录下,目录结构如下:
– application\libraries\PHPExcel.php
– application\libraries\PHPExcel (文件夹)
2)修改application\libraries\PHPExcel\IOFactory.php 文件
– 将其类名从PHPExcel_IOFactory改为IOFactory,遵从CI类命名规则。
– 将其构造函数改为public(__construct)
2. 安装完毕,写一个导出excel的控制器(Controller)
public function index(){
//判断上传文件存在值
if(!empty($_FILES)){
$filename = $_FILES['file']['name'];//被上传文件的名称
$filetype = $_FILES["file"]["type"];//被上传文件的类型
$filesize = $_FILES["file"]["size"];// 被上传文件的大小,以字节计
$filetmp = $_FILES["file"]["tmp_name"];//存储在服务器的文件的临时副本的名称
$fileerror = $_FILES["file"]["error"];//由文件上传导致的错误代码
//判断是否上传成功
if($fileerror==0){
//判断是否是excel表格
if($filetype=="application/vnd.ms-excel" || $filetype=="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"){
/*设置保存路径*/
$filePath = 'uploads/excel/';
$str = "";
/*加载PHPExcel*/
$this->load->library('PHPExcel.php');
$this->load->library('PHPExcel/IOFactory.php');
//$this->load->library('PHPExcel/Reader/Excel5.php');
//注意设置时区
$time=date("YmdHis");//去当前上传的时间
//获取上传文件的扩展名
$extend=strrchr ($filename,'.');
//上传后的文件名
$name=$time.$extend;
//上传后的文件名地址
$uploadfile=$filePath.$name;//上传后的文件名地址
//move_uploaded_file() 函数将上传的文件移动到新位置。若成功,则返回 true,否则返回 false。
$result=move_uploaded_file($filetmp,$uploadfile);//假如上传到当前目录下
//echo $result;
//如果上传文件成功,就执行导入excel操作
if($result){
$inputFileType = IOFactory::identify($uploadfile);//确定输入文件的格式
$objReader = IOFactory::createReader($inputFileType);//穿件相对应的阅读器
$objPHPExcel = $objReader->load($uploadfile); //加载要读取的文件
$sheet = $objPHPExcel->getSheet(); //得到当前活动sheet
$highestRow = $sheet->getHighestRow(); //取得总行数
$highestColumn = $sheet->getHighestColumn(); //取得总列数
// print_r($highestRow);
//print_r($highestColumn);
/* 第一种方法
//循环读取excel文件,读取一条,插入一条
for($j=1;$j {
for($k='A';$k {
//
//这种方法简单,但有不妥,以'\\'合并为数组,再分割\\为字段值插入到数据库
//实测在excel中,如果某单元格的值包含了\\导入的数据会为空
//
$str .=$objPHPExcel->getActiveSheet()->getCell("$k$j")->getValue().'\\';//读取单元格
}
//echo $str; die();
//explode:函数把字符串分割为数组。
$strs = explode("\\",$str);
print_r($strs);
$sql = "INSERT INTO te(`id`, `name`) VALUES (
'{$strs[0]}',
'{$strs[1]}')";
//die($sql);
if(!mysql_query($sql))
{
return false;
echo 'sql语句有误';
}
mysql_query($sql);
$str = "";
}
unlink($uploadfile); //删除上传的excel文件
$msg = "导入成功!";
*/
/* 第二种方法*/
$objWorksheet = $objPHPExcel->getActiveSheet();
$highestRow = $objWorksheet->getHighestRow();
$highestColumn = $objWorksheet->getHighestColumn();
$highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn);//总列数
$headtitle=array();
for ($row = 2;$row
$arr=array();
//注意highestColumnIndex的列数索引从0开始
for ($col = 0;$col
$arr[$col] =$objWorksheet->getCellByColumnAndRow($col, $row)->getValue();
}
// $sql = "INSERT INTO admins(`account`, `pwd`, `username`, `power`, `tel`,`sex`,`work_numjob`,`job`,`sector`) VALUES (
// '{$strs[0]}',
// '{$strs[1]}',
// '{$strs[2]}',
// '{$strs[3]}',
// '{$strs[4]}',
// '{$strs[5]}',
// '{$strs[6]}',
// '{$strs[7]}',
// '{$strs[8]}',)";
$data=array(
'account'=>$arr['0'],
'pwd'=>$arr['1'],
'username'=>$arr['2'],
'power'=>$arr['3'],
'tel'=>$arr['4'],
'sex'=>$arr['5'],
'work_num'=>$arr['6'],
'job'=>$arr['7'],
'sector'=>$arr['8'],
);
$this->db->insert("admins",$data);
}
unlink($uploadfile);
show_msg("导入成功",site_url("链接地址"));//跳转地址
//删除上传的excel文件
}
}else{
show_msg("上传文件非cvs格式,请重新上传");
}
}else{
switch ($fileerror){
case 1:
show_msg("上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值.");
break;
case 2:
show_msg("上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值");
break;
case 3:
show_msg("文件只有部分被上传");
break;
case 4:
show_msg("没有文件被上传");
break;
}
}
}
}
注意事项:阅读方式excel方式不能指定死,让他自动识别文件来自动读取。
3. 读取excel详细资料
1. 导入一个Excel最简单的方法是使用PHPExel的IO Factory,调用PHPExcel_IOFactory类的静态法load,它可以自动识别文档格式,包括Excel2007、 Excel2003XML、OOCalcSYLK、Gnumeric、CSV。返回一个PHPExcel的实例。
//加载工厂类
include'PHPExcel/IOFactory.php';
//要读取的xls文件路径
$inputFileName = './sampleData/example1.xls';
/** 用PHPExcel_IOFactory的load方法得到excel操作对象 **/
$objPHPExcel = PHPExcel_IOFactory::load($inputFileName);
//得到当前活动表格,调用toArray方法,得到表格的二维数组
$sheetData =$objPHPExcel->getActiveSheet()->toArray(null,true,true,true);
var_dump($sheetData);
1. 创建一个ExcelReader去加载一个Excel文档
如果你知道这个Excel文档的格式,可以建立一个相应的Reader去加载要读取的Excel文档。但是如果你加载了错误的文档类型,可会产生不可预知的错误。
$inputFileName = './sampleData/example1.xls';
/** Create a new Excel5 Reader **/
$objReader = new PHPExcel_Reader_Excel5();
// $objReader = new PHPExcel_Reader_Excel2007();
// $objReader = new PHPExcel_Reader_Excel2003XML();
// $objReader = new PHPExcel_Reader_OOCalc();
// $objReader = new PHPExcel_Reader_SYLK();
// $objReader = new PHPExcel_Reader_Gnumeric();
// $objReader = new PHPExcel_Reader_CSV();
/** Load $inputFileName to a PHPExcel Object **/
$objPHPExcel = $objReader->load($inputFileName);
//得到当前活动sheet
$curSheet =$objPHPExcel->getActiveSheet();
//以二维数组形式返回该表格的数据
$sheetData = $curSheet->toArray(null,true,true,true);
var_dump($sheetData);
也可以用PHPExcel_IOFactory的createReader方法去得到一个Reader对象,无需知道要读取文件的格式。
$inputFileType = 'Excel5';
// $inputFileType = 'Excel2007';
// $inputFileType = 'Excel2003XML';
// $inputFileType = 'OOCalc';
// $inputFileType = 'SYLK';
// $inputFileType = 'Gnumeric';
// $inputFileType = 'CSV';
$inputFileName = './sampleData/example1.xls';
/** Create a new Reader of the type defined in $inputFileType **/
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
/** Load $inputFileName to a PHPExcel Object **/
$objPHPExcel = $objReader->load($inputFileName);
//得到当前活动sheet
$curSheet = $objPHPExcel->getActiveSheet();
//以二维数组形式返回该表格的数据
$sheetData = $curSheet->toArray(null,true,true,true);
var_dump($sheetData);
如果在读取文件之前,文件格式未知,你可以通过IOFactory 的 identify()方法得到文件类型,然后通过createReader()方法去穿件阅读器。
$inputFileName = './sampleData/example1.xls';
/** 确定输入文件的格式 **/
$inputFileType = PHPExcel_IOFactory::identify($inputFileName);
/** 穿件相对应的阅读器 **/
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
/** 加载要读取的文件 **/
$objPHPExcel = $objReader->load($inputFileName);
在使用load()方法加载文件之前,可以设置读取选项来控制load的行为.
2.1.ReadingOnly Data from a Spreadsheet File
setReadDataOnly()方法,配置阅读器不关注表格数据的数据类型,都以string格式返回
$inputFileType = 'Excel5';
$inputFileName = './sampleData/example1.xls';
/** Create a new Reader of the type defined in $inputFileType **/
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
/** 配置单元格数据都以字符串返回 **/
$objReader->setReadDataOnly(true);
/** Load $inputFileName to a PHPExcel Object **/
$objPHPExcel = $objReader->load($inputFileName);
$sheetData =$objPHPExcel->getActiveSheet()->toArray(null,true,true,true);
var_dump($sheetData);
详细资料:http://blog.csdn.net/andy1219111/article/details/7673796;

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