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参考文档: 微信签名算法
签名生成的通用步骤如下: 第一步,设所有发送或者接收到的数据为集合M,将集合M内非空参数值的参数按照参数名ASCII码从小到大排序(字典序),使用URL键值对的格式(即key1=value1&key2=value2…)拼接成字符串stringA。 特别注意以下重要规则: ◆ 参数名ASCII码从小到大排序(字典序); ◆ 如果参数的值为空不参与签名; ◆ 参数名区分大小写; ◆ 验证调用返回或微信主动通知签名时,传送的sign参数不参与签名,将生成的签名与该sign值作校验。 ◆ 微信接口可能增加字段,验证签名时必须支持增加的扩展字段 第二步,在stringA最后拼接上key得到stringSignTemp字符串,并对stringSignTemp进行MD5运算,再将得到的字符串所有字符转换为大写,得到sign值signValue。
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谢谢了,确实需要对value值判空,有可能是空字符串
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在调用微信接口返回,如果有些int类型的节点值为0,那么在VerifyWeChatSign时这些节点会丢失,导致验签失败,这个怎么解决好点?把int节点换成*int怎样?
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参考文档:
微信签名算法
The text was updated successfully, but these errors were encountered: