thinkphp5加layui实现图片上传功能（带图片预览）

这篇文章主要介绍了thinkphp5加layui实现图片上传功能（带图片预览）的相关资料,需要的朋友可以参考下

1、引入文件

首先，要引入jQuery文件，这是必须的

<link rel="stylesheet" type="text/css" href="__STATIC__/plugins/layui/css/layui.css" rel="external nofollow" ><script type="text/javascript" src="__STATIC__/plugins/layui/layui.js"></script>

2、HTML部分

<form class="layui-form"><div class="layui-input-inline"><button class="layui-btn layui-btn-sm" onclick="return false;" id="upload_img"><i class="layui-icon">&#xe67c;</i>上传图片</button><img id="pre_img" <?php if($data['item']['img']){echo 'src="'.$data['item']['img'].'"';}?> style="height: 30px;" /><input type="hidden" name="img" value="{$data.item.img}"></div><div class="layui-form-item"><div class="layui-input-block"><button class="layui-btn" onclick="save()">保存</button></div></div></form>

3、功能实现

<script type="text/javascript">layui.use(['form','layer','upload'],function(){$ = layui.jquery;var form = layui.form;layer = layui.layer;var upload = layui.upload;//执行实例var uploadInst = upload.render({elem: '#upload_img' //绑定元素,url: '/admins.php/admins/video/upload_img' //上传接口,accept:'images',done: function(res){//上传完毕回调$('#pre_img').attr('src',res.msg);$('input[name="img"]').val(res.msg);},error: function(){//请求异常回调}});});// 保存function save(){var title = $.trim($('input[name="title"]').val());var url = $.trim($('input[name="url"]').val());if(title == ''){layer.msg('请输入影片名称',{'icon':2,'anim':6});return;}if(url == ''){layer.msg('请输入影片地址',{'icon':2,'anim':6});return;}$.post('/admins.php/admins/video/save',$('form').serialize(),function(res){if(res.code>0){layer.msg(res.msg,{'icon':2,'anim':2});}else{layer.msg(res.msg,{'icon':1});setTimeout(function(){parent.window.location.reload();},1000);}},'json');}</script>

4、后台处理

图片上传

public function upload_img(){$file = request()->file('file');if($file==null){exit(json_encode(array('code'=>1,'msg'=>'没有文件上传')));}$info = $file->move(ROOT_PATH.'public'.DS.'uploads');$ext = ($info->getExtension());if(!in_array($ext,array('jpg','jpeg','gif','png'))){exit(json_encode(array('code'=>1,'msg'=>'文件格式不支持')));}$img = '/uploads/'.$info->getSaveName();exit(json_encode(array('code'=>0,'msg'=>$img)));}

保存内容

public function save(){$id = (int)input('post.id');$data['title'] = trim(input('post.title'));$data['channel_id'] = (int)input('post.channel_id');$data['charge_id'] = (int)input('post.charge_id');$data['area_id'] = (int)input('post.area_id');$data['img'] = trim(input('post.img'));$data['url'] = trim(input('post.url'));$data['keywords'] = trim(input('post.keywords'));$data['desc'] = trim(input('post.desc'));$data['status'] = (int)input('post.status');if($data['title'] == ''){exit(json_encode(array('code'=>1,'msg'=>'影片名称不能为空')));}if($data['url'] == ''){exit(json_encode(array('code'=>1,'msg'=>'影片地址不能为空')));}if($id){$this->db->table('video')->where(array('id'=>$id))->update($data);}else{$data['add_time'] = time();$this->db->table('video')->insert($data);}exit(json_encode(array('code'=>0,'msg'=>'保存成功')));}

到此这篇关于thinkphp5加layui实现图片上传功能（带图片预览）的文章就介绍到这了,更多相关thinkphp+layui图片上传内容请搜索一聚教程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持一聚教程网！