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## Alipay 国内支付宝支付说明 ##
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> update : 2017.09.26 LYT <lyt@hainatravel.com>
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国内支付宝仅支持人民币支付
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#### 支付链接示例 ####
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`https://www.chinahighlights.com/securealipay/?b3JkZXJfaWQ9MTUwNDE0NzIwMyZzdWJqZWN0PUlwaG9uZTYmdG90YWxfYW1vdW50PTAuMDEmYm9keT1UcmFja2luZyBDb2RlOjE1MDQxNDcyMDMgVHJhdmVsIEFkdmlzb3I6TGlseSBDb250ZW50OlBheSBmb3IgdG91cg`
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##### 链接说明 #####
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链接最后一段为base64加密后的订单数据字符串
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如上示例链接的
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b3JkZXJfaWQ9MTUwNDE0NzIwMyZzdWJqZWN0PUlwaG9uZTYmdG90YWxfYW1vdW50PTAuMDEmYm9keT1UcmFja2luZyBDb2RlOjE1MDQxNDcyMDMgVHJhdmVsIEFkdmlzb3I6TGlseSBDb250ZW50OlBheSBmb3IgdG91cg
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加密前为:
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order_id=1504147203&subject=Iphone6&total_amount=0.01&body=Tracking Code:1504147203 Travel Advisor:Lily Content:Pay for tour
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##### 参数说明 #####
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参数 | 类型 | 是否必填 | 最大长度 | 描述 | 示例值
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--- | --- | -- | ---- | --- | ---
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order_id| String| 是| 64| 商户订单号，64个字符以内、可包含字母、数字、下划线；<br><b style="color:red;">需保证在商户端不重复</b> | 20150320010101001
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total_amount | Price | 是 | 11 | 订单总金额，单位为元，精确到小数点后两位 | 88.88
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subject | String | 是 | 256 | 订单标题 | Iphone6
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body | String | 否 | 128 | 订单描述 | Iphone6
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return_url | String | 否 | 256 | 同步跳转地址，**HTTP/HTTPS开头**字符串<br>默认为CH首页 | https://www.chinahighlights.com
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notify_url | String | 否 | 256 | 支付宝服务器主动通知商户服务器里指定的页面**HTTP/HTTPS开头**的路径。 | https://api.xx.com/receive_notify.htm
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##### 支付选项logo
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https://data.chinahighlights.com/pic/alipay_logo_228_80.png
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