2. 状态码说明
<p><strong>返回参数：</strong></p>
<table>
<thead>
<tr>
<th>参数</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>code</td>
<td>状态码</td>
</tr>
<tr>
<td>data</td>
<td>返回数据集</td>
</tr>
<tr>
<td>msg</td>
<td>状态消息</td>
</tr>
</tbody>
</table>
<p><strong>返回示例：</strong></p>
<pre><code class="language-json">{
"code": 101,
"data": "数据集",
"msg": "成功"
}</code></pre>
<p><strong>状态码说明：</strong></p>
<table>
<thead>
<tr>
<th>错误码</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>101</td>
<td>成功</td>
</tr>
<tr>
<td>102</td>
<td>缺少参数</td>
</tr>
<tr>
<td>103</td>
<td>参数值为空</td>
</tr>
<tr>
<td>104</td>
<td>签名错误</td>
</tr>
<tr>
<td>105</td>
<td>超过有效期</td>
</tr>
<tr>
<td>106</td>
<td>商户号错误</td>
</tr>
<tr>
<td>107</td>
<td>渠道错误</td>
</tr>
<tr>
<td>108</td>
<td>订单号为空</td>
</tr>
<tr>
<td>109</td>
<td>订单号重复</td>
</tr>
<tr>
<td>110</td>
<td>订单不存在</td>
</tr>
<tr>
<td>111</td>
<td>请求超时</td>
</tr>
<tr>
<td>112</td>
<td>交易处理中请稍后查询</td>
</tr>
<tr>
<td>113</td>
<td>订单退回</td>
</tr>
<tr>
<td>114</td>
<td>支付失败</td>
</tr>
<tr>
<td>115</td>
<td>版本号错误</td>
</tr>
<tr>
<td>116</td>
<td>支付金额错误</td>
</tr>
<tr>
<td>117</td>
<td>IP错误</td>
</tr>
<tr>
<td>118</td>
<td>支付系统繁忙,请稍后再试</td>
</tr>
<tr>
<td>119</td>
<td>支付密码错误</td>
</tr>
<tr>
<td>120</td>
<td>余额不足</td>
</tr>
<tr>
<td>121</td>
<td>下发维护中</td>
</tr>
<tr>
<td>122</td>
<td>渠道维护中</td>
</tr>
</tbody>
</table>