danci/www.hanlinyuanonline.com/Application/Api/Controller/UploadController.class.php

<?php
namespace Api\Controller;
use Common\Controller\ApiController;
class UploadController extends ApiController {
    public function __construct(){
        parent::__construct();
    }
    public function index(){
        $upload = new \Think\Upload();// 实例化上传类
        $upload->maxSize   =     3145728 ;// 设置附件上传大小
        $upload->exts      =     array('jpg', 'gif', 'png', 'jpeg');// 设置附件上传类型
        $upload->rootPath  =     C('IMG_PATH'); // 设置附件上传根目录
        $upload->saveName   =    array('uniqid','');
        $upload->autoSub = true;                      //是否使用子目录保存上传文件
        $upload->subName =  array('date', 'Y-m');                       //子目录创建方式，默认为hash，可以设置为hash或者date
        $info   =   $upload->upload($_FILES); // 上传文件
        if(!$info) {// 上传错误提示错误信息
            //$data = array('code'=>1,'msg'=>'文件上传错误');
            $data = array('code'=>1,'msg'=>$upload->getError(),'data'=>$_FILES['file_data']);
            $this->returnData($data);exit;
        }else{// 上传成功 获取上传文件信息
            $img_path = str_replace('.', '', C('IMG_PATH')).$info['file_data']['savepath'].$info['file_data']['savename'];
            $data = array(
                'img_path'=>C('DOMAIN').$img_path,
                'img_url'=>C('DOMAIN').$img_path,
            );
            $data = array('code'=>0,'msg'=>'','data'=>$data);
            $this->returnData($data);exit;
        }
    }
}