qs的arrayFormat与SpringBoot接收数组问题

旧城等待， 2021-07-26 16:49 257阅读 1赞

> qs.stringify(\{ids: \[1, 2, 3\]\}, \{arrayFormat: ‘indices‘\})
> 
> //形式： ids\[0\]=1&aids1\]=2&ids\[2\]=3

> qs.stringify(\{ids: \[1, 2, 3\]\}, \{arrayFormat: ‘brackets‘\})
> 
> //形式：ids\[\]=1&ids\[\]=2&ids\[\]=3

> qs.stringify(\{ids: \[1, 2, 3\]\}, \{arrayFormat: ‘repeat‘\})
> 
> //形式： ids=1&ids=2&id=3

<table> 
 <tbody> 
 <tr> 
 <td>前端arrayFormat</td> 
 <td>后台SpringBoot</td> 
 <td>接收结果</td> 
 </tr> 
 <tr> 
 <td>'indices'</td> 
 <td>@RequestParam&nbsp;List&lt;Long&gt;</td> 
 <td>失败</td> 
 </tr> 
 <tr> 
 <td>'brackets'</td> 
 <td>@RequestParam&nbsp;List&lt;Long&gt;</td> 
 <td>失败</td> 
 </tr> 
 <tr> 
 <td>'repeat'</td> 
 <td>@RequestParam List&lt;Long&gt;</td> 
 <td>成功</td> 
 </tr> 
 <tr> 
 <td>'indices'</td> 
 <td> <pre>@RequestParam Long[]</pre> </td> 
 <td>失败</td> 
 </tr> 
 <tr> 
 <td>'brackets'</td> 
 <td> <pre>@RequestParam Long[]</pre> </td> 
 <td>失败</td> 
 </tr> 
 <tr> 
 <td>'repeat'</td> 
 <td> <pre>@RequestParam Long[]</pre> </td> 
 <td>成功</td> 
 </tr> 
 <tr> 
 <td>'indices'</td> 
 <td> <pre>@RequestParam("tagIdList[]") Long[]</pre> </td> 
 <td>失败</td> 
 </tr> 
 <tr> 
 <td>'brackets'</td> 
 <td>@RequestParam("tagIdList[]") Long[]</td> 
 <td>成功</td> 
 </tr> 
 <tr> 
 <td>'repeat'</td> 
 <td>@RequestParam("tagIdList[]") Long[]</td> 
 <td>失败</td> 
 </tr> 
 <tr> 
 <td>'indices'</td> 
 <td>@RequestParam("tagIdList[]")&nbsp;List&lt;Long&gt;</td> 
 <td>失败</td> 
 </tr> 
 <tr> 
 <td>'brackets'</td> 
 <td>@RequestParam("tagIdList[]")&nbsp;List&lt;Long&gt;</td> 
 <td>成功</td> 
 </tr> 
 <tr> 
 <td>'repeat'</td> 
 <td>@RequestParam("tagIdList[]")&nbsp;List&lt;Long&gt;</td> 
 <td>失败</td> 
 </tr> 
 </tbody> 
</table>

> 总结：使用List<Long>和Long\[\]是没有区别的，区别在于@RequestParam中是否加\[\]
> 
> qs.stringify(\{ids: \[1, 2, 3\]\}, \{arrayFormat: ‘indices‘\})
> 
> //形式： ids\[0\]=1&aids\[1\]=2&ids\[2\]=3 @RequestParam无法接收
> 
> qs.stringify(\{ids: \[1, 2, 3\]\}, \{arrayFormat: ‘brackets‘\})
> 
> //形式：ids\[\]=1&ids\[\]=2&ids\[\]=3 要加\[\]
> 
> qs.stringify(\{ids: \[1, 2, 3\]\}, \{arrayFormat: ‘repeat‘\})
> 
> //形式： ids=1&ids=2&ids=3 不能加\[\] 
>