余额查询
<h3>接口描述</h3>
<ul>
<li>查询用户当前余额。</li>
</ul>
<h3>请求地址</h3>
<p><code>https://api.jumdata.com/assistant/balance</code></p>
<h3>请求方式</h3>
<ul>
<li>GET</li>
</ul>
<h3>请求格式</h3>
<ul>
<li>x-www-form-urlencoded</li>
</ul>
<h3>请求参数</h3>
<table>
<thead>
<tr>
<th>名称</th>
<th>类型</th>
<th>是否必填</th>
<th><div style="width:420px">说明</div></th>
</tr>
</thead>
<tbody>
<tr>
<td>appId</td>
<td>String</td>
<td>是</td>
<td>服务商分配的唯一标识</td>
</tr>
<tr>
<td>timestamp</td>
<td>Long</td>
<td>是</td>
<td>当前时间的毫秒数</td>
</tr>
<tr>
<td>sign</td>
<td>String</td>
<td>是</td>
<td>签名，见签名算法说明</td>
</tr>
</tbody>
</table>
<h3>签名算法</h3>
<pre><code>sign = sha256(appId + appSecret + timestamp)</code></pre>
<p>用服务商分配的 <strong>appId</strong>、服务商分配的 <strong>appSecret</strong>，当前时间毫秒数 <strong>timestamp</strong>，按上述顺序拼接成字符串，再进行 <strong>sha256</strong> 哈希得到。如下：</p>
<pre><code class="language-java">String appId = &quot;xyzxy2121zxyz&quot;；
String timestamp = &quot;1555378976238&quot;；
String appSecret = &quot;efcefcef1121cefcefc1212121&quot;；
String str = appId + appSecret + timestamp；
String sign = sha256(str)；</code></pre>
<h3>正确返回</h3>
<pre><code>{
&quot;code&quot;: 200,
&quot;msg&quot;: &quot;成功&quot;,
&quot;data&quot;: 810.75,
&quot;taskNo&quot;: &quot;852010111165127142217632&quot;
}</code></pre>
<h3>返回字段说明</h3>
<table>
<thead>
<tr>
<th>字段名</th>
<th><div style="width:420px">说明</div></th>
</tr>
</thead>
<tbody>
<tr>
<td>code</td>
<td>返回码，详见返回码说明</td>
</tr>
<tr>
<td>msg</td>
<td>code对应的描述</td>
</tr>
<tr>
<td>taskNo</td>
<td>本次请求号</td>
</tr>
<tr>
<td>data</td>
<td>余额</td>
</tr>
</tbody>
</table>