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<!--#include virtual="/inc/odbc.asp"-->
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<head>
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<meta charset="UTF-8">
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<title>微信API开发文档</title>
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<h2 id="firstHeading" class="">微信支付统一下单接口</h2>
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<div class="info">
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<p>用微信OPENID,订单ID生成微信统一下单。</p>
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<p><b>发送API请求</b>
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</p>
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<pre>http请求方式: GET
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<a href="http://api.v.com.cn/weixin/weixin_pay.asp?order_no=2016721398&openid=&Sign=019d45e7677e2038bc871770503a7f1f" class="external free" rel="nofollow" target="_blank">http://api.v.com.cn/weixin/weixin_pay.asp?order_no=order_no&openid=openid&Sign=Sign</a>
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GET数据例子：
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order_no=2016721398
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openid=oc7O8weCFGr6f62e9zuRRG00g85k
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type=1
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trade_type=JSAPI
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GET请求格式：http://api.v.com.cn/weixin/weixin_pay.asp?order_no=2016721398&openid=oc7O8weCFGr6f62e9zuRRG00g85k&type=1&trade_type=JSAPI&Sign=Sign
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</pre>
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<p><b>参数说明</b>
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</p>
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<table border="1" cellspacing="0" cellpadding="4" align="center" width="80%">
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<tbody><tr>
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<th style="width:100px">参数</th>
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<th style="width:100px">是否必须</th>
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<th style="width:300px">说明</th>
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<th style="width:300px">例子</th>
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</tr>
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<tr>
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<td> mch_id</td>
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<td> 是</td>
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<td> 商户号</td>
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<td> 微信支付的商户号</td>
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</tr>
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<tr>
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<td> order_no</td>
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<td> 是</td>
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<td> 订单号</td>
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<td> 后台生成的订单号</td>
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</tr>
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<tr>
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<td> openid</td>
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<td> 是</td>
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<td> 微信客户OPENID</td>
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<td> </td>
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</tr>
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<tr>
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<td> Total_fee</td>
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<td> 否</td>
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<td> 支付金额</td>
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<td> 如不填写,就按订单未支付金额生成</td>
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</tr>
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<tr>
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<td> trade_type</td>
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<td> 是</td>
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<td> 交易类型</td>
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<td> 取值如下：JSAPI，NATIVE，APP，MWEB等，说明详见微信支付<a href="https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=4_2">参数规定</a></td>
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</tr>
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<tr>
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<td> spbill_create_ip</td>
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<td> 否</td>
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<td> 用户端IP地址</td>
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<td> </td>
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</tr>
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<tr>
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<td> attach</td>
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<td> 否</td>
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<td> 附加数据</td>
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<td> </td>
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</tr>
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<tr>
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<td> Sign</td>
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<td> 是</td>
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<td> 签名</td>
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<td> </td>
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</tr>
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</tbody></table>
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<p><b>返回说明</b>
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正常情况下，系统会返回下述JSON数据包:
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</p>
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<pre>
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{
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"return_code":"SUCCESS",
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"return_msg":"OK",
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"appid":"wx8dffc05a6ada87ed",
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"mch_id":"1380453402",
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"nonce_str":"2HELXAfp97wm3ipQ",
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"sign":"66F6EDA7C1A270C92AE4F16A7B5A624E",
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"result_code":"SUCCESS",
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"prepay_id":"wx201704051158002c0898d6190817154997",
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"trade_type":"JSAPI"
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}
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</pre>
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<p><b>返回参数说明</b>
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</p>
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<table border="1" cellspacing="0" cellpadding="4" align="center" width="80%">
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<tbody><tr>
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<th style="width:100px">参数</th>
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<th style="width:100px">是否必须</th>
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<th style="width:100px">参数类型</th>
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<th style="width:300px">说明</th>
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<th style="width:300px">例子</th>
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</tr>
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<tr>
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<td> return_code</td>
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<td> 是</td>
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<td> String</td>
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<td> 是否成功</td>
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<td> SUCCESS</td>
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</tr>
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<tr>
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<td> return_msg</td>
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<td> 是</td>
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<td> String</td>
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<td> 处理结果：OK-成功</td>
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<td> </td>
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</tr>
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<tr>
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<td> weixin_Name</td>
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<td> 是</td>
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<td> String</td>
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<td> 微信号名称。</td>
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<td> </td>
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</tr>
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<tr>
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<td> appid</td>
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<td> 是</td>
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<td> String</td>
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<td> 微信应用ID</td>
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<td> </td>
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</tr>
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<tr>
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<td> mch_id</td>
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<td> 是</td>
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<td> String</td>
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<td> 微信应用mch_id</td>
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<td> </td>
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</tr>
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<tr>
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<td> nonce_str</td>
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<td> 是</td>
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<td> String</td>
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<td> 随机字符串</td>
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<td> </td>
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</tr>
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<tr>
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<td> sign</td>
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<td> 是</td>
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<td> String</td>
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<td> 微信签名</td>
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<td> </td>
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</tr>
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<tr>
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<td> result_code</td>
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<td> 是</td>
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<td> String</td>
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<td> 返回状态</td>
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<td> </td>
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</tr>
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<tr>
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<td> prepay_id</td>
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<td> 是</td>
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<td> String</td>
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<td> 微信统一下单号</td>
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<td> wx201704051158002c0898d6190817154997</td>
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</tr>
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<tr>
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<td> trade_type</td>
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<td> 是</td>
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<td> String</td>
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<td> 微信支付模式</td>
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<td> </td>
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</tr>
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</tbody></table>
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