HTML5+Canvas手机拍摄,本地压缩上传图片

最近在折腾移动站的开发,涉及到了一个手机里面上传图片。于是经过N久的折腾,找到一个插件,用法如下:

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<!DOCTYPE HTML>
< html lang = "zh-CN" >
< meta name = "viewport" content = "initial-scale=1.0, maximum-scale=1.0,user-scalable=no" /> 
< head >
     < meta charset = "UTF-8" >
     < title >LocalResizeIMG</ title >
</ head >
< style >
     body {
         margin: 20px 20%;
         color:#777;
         text-align: center;
     }
</ style >
< body >
     < h1 class = "text-center" >LocalResizeIMG-本地压缩 1.0</ h1 >
     < hr />
     < input type = "file" />
     < hr />
 
     <!-- javascript
         ================================================== -->
     < script src = "/api/localResizeIMG-gh-pages/patch/jquery-2.1.1.min.js" type = "text/javascript" ></ script >
     < script src = "/api/localResizeIMG-gh-pages/LocalResizeIMG.js" type = "text/javascript" ></ script >
     
     <!-- mobileBUGFix.js 兼容修复移动设备 -->
     < script src = "/api/localResizeIMG-gh-pages/patch/mobileBUGFix.mini.js" type = "text/javascript" ></ script >
     < script type = "text/javascript" >
         $('input:file').localResizeIMG({
              width: 500,
              quality: 0.8,
              success: function (result) {
                  var img = new Image();
                  img.src = result.base64;
     
                  $('body').append(img);
                  //console.log(result);
                 $.ajax({
                      url: './uploads.php',
                      type: 'POST',
                      data:{formFile:result.clearBase64},
                      dataType: 'HTML',
                      timeout: 1000,
                      error: function(){
                          alert('Error loading PHP document');
                     },
                      success: function(result){
                          //console.log(result);
                         alert("Uploads success~")
                     }
                  });
              }
          });
     </ script >
</ body >
</ html >

PHP代码:

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<?php
     $base64 = $_POST [ 'formFile' ];
     $IMG = base64_decode ( $base64 );
     $path = './' ;
     file_put_contents ( $path .time(). '.jpg' , $IMG );
?>

 

在前端把图片压缩,然后转换成为Base64的编码,再把Base64的编码使用AJAX来POST到服务器,然后在PHP解开Base64,写入到一个文件去。

原插件地址:http://github.com/think2011/LocalResizeIMG

然后发现我朋友也写有一篇这个插件的使用的文章,地址在这里:http://a3147972.blog.51cto.com/2366547/1551066

最后,欢迎加Q群: 252799167

2015年04月11日12:23:10 Update:

这插件的作者已经对插件进行了升级,推荐使用新的插件:https://github.com/think2011/localResizeIMG3/

 

其他链接:

http://blog.csdn.net/renfufei/article/details/9836317

http://www.thinksaas.cn/group/topic/351088/

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