jquery file upload 后台收到的文件名中文乱码, filename中文乱码

在jQuery File Upload.js文件里,在以下这个js中有个成员叫做 _initXHRData, 是一个function, 在这个function的最后部分有一个if-else分支,如下:

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" alt="" />

很显然最后一个if里面没有进行UTF-8编码处理

所以,发送出去确实容易导致编码的问题。因此,就在这里用encodeURI()方法做一下处理:

 encodeURI(file.name)

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" 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推荐参考文章:http://blog.csdn.net/zhouyingge1104/article/details/38322403

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