如何在AJAX POST请求中发送@RequestParam

huangapple
go评论129阅读模式
英文:

How to send @RequestParam in AJAX POST request

问题

以下是您的代码的翻译部分：

  1. 我有一个接受请求参数的 API：
  3. @PostMapping(value = "/export")
  4. @ResponseBody
  5. public ResponseEntity<String> bulkExport(
  6.     @RequestParam(value = "managedObjects", required = false) List<String> managedObjects) {
  7.     // 数据
  8. }
  1. 我想发送 AJAX POST 请求：
  3. $.ajax({
  4.     type: "POST",
  5.     //url: "policy/js_policy",
  6.     url: "/export/",
  7.     async: false,
  8.     data: { "managedObjects": ["Audit","Logs"] },
  9.     contentType: "application/json; charset=utf-8",
  10.     dataType: "json",
  11.     complete: function (XMLHttpRequest, textStatus) {
  12.         // 文件处理
  13.     }
  14. });

我尝试在URL中发送managedObjects，在数据中也发送了相同的参数，但我的API没有工作。如何确切地从AJAX POST请求中发送@RequestParam 参数？

英文:

I have my API which accepts Request Param:

  1.     @PostMapping(value = &quot;/export&quot;)
  2.     @ResponseBody   
  3. 	public ResponseEntity&lt;String&gt; bulkExport(
  4. 		@RequestParam(value = &quot;managedObjects&quot;, required = false) List&lt;String&gt; managedObjects) {
  5.         //data
  6.         }
  7.    );

I want to send AJAX POST request.

  1. $.ajax({
  2.       type: &quot;POST&quot;,
  3.       //url: &quot;policy/js_policy&quot;,
  4.       url: &quot;/export/ ,
  5.       async: false,
  6.       data: { &quot;managedObjects&quot;: [&quot;Audit&quot;,&quot;Logs&quot;]},
  7.       contentType: &quot;application/json; charset=utf-8&quot;,
  8.       dataType: &quot;json&quot;,
  9.       complete: function (XMLHttpRequest, textStatus) {
  10.         //File Handling
  11.       }
  12.     });

I tried to send managedObjects in URL. In data also I am sending the same.But my API is not working. How to send the @RequestParam from AJAX POST request exactly?

答案1

得分: 3

在"Query Param"中传递一个列表

  1. $.ajax({
  2.       ...
  3.       url: "/export?managedObjects=Audit,Logs" ,
  4.       ...
  5.     });

在"Request Body"中传递一个列表

  1. $.ajax({
  2.   type: "POST",
  3.   url: "/export/",
  4.   ...
  5.   data: {managedObjects[0]: "Audit",
  6.          managedObjects[1]: "Logs"}
  7.   ...
  8. });
英文:

pass a list in Query Param

  1. $.ajax({
  2.       ...
  3.       url: &quot;/export?managedObjects=Audit,Logs&quot; ,
  4.       ...
  5.     });

pass a list in Request Body

  1. $.ajax({
  2.   type: &quot;POST&quot;,
  3.   url: &quot;/export/&quot;,
  4.   ...
  5.   data: {managedObjects[0]: &quot;Audit&quot;,
  6.          managedObjects[1]: &quot;Logs&quot;}
  7.   ...
  8. });

答案2

得分: 0

Here's the translated code portion:

尝试将您的数据转化为字符串：

  1. var data = {
  2.    managedObjects: ["Audit", "Logs"]
  3. }
  4. $.ajax({
  5.   type: "POST",
  6.   url: "/export/",
  7.   async: false,
  8.   data: JSON.stringify(data),
  9.   contentType: "application/json; charset=utf-8",
  10.   dataType: "json",
  11.   complete: function (XMLHttpRequest, textStatus) {
  12.     
  13.   }
  14. });

此外，您应该在@RequestParam中使用"name"而不是"value"：

  1. @PostMapping(value = "/export")
  2. @ResponseBody   
  3. public ResponseEntity<String> bulkExport(
  4.     @RequestParam(name = "managedObjects", required = false) List<String> managedObjects) {
  5.     //data
  6. }

请注意，我只翻译了您提供的代码部分，没有其他内容。

英文:

Try stringifying your data:

  1. var data = {
  2.    managedObjects: [&quot;Audit&quot;, &quot;Logs&quot;]
  3. }
  4. $.ajax({
  5.   type: &quot;POST&quot;,
  6.   url: &quot;/export/&quot;,
  7.   async: false,
  8.   data: JSON.Stringify(data),
  9.   contentType: &quot;application/json; charset=utf-8&quot;,
  10.   dataType: &quot;json&quot;,
  11.   complete: function (XMLHttpRequest, textStatus) {
  12.     
  13.   }
  14. });

Additionally you should use "name" instead "value" in @RequestParam:

  1. @PostMapping(value = &quot;/export&quot;)
  2. @ResponseBody   
  3. public ResponseEntity&lt;String&gt; bulkExport(
  4.     @RequestParam(name = &quot;managedObjects&quot;, required = false) List&lt;String&gt; managedObjects) {
  5.     //data
  6.     }

);

答案3

得分: 0

I think the problem is just with the list that you want to send in your request.

  1. var dataToSend = {
  2.     list: [{ fieldname: 'ABC' }, { fieldname: 'DEF' }]; // your list should be something like this.
  3.     $.ajax({
  4.         type: "POST",
  5.         //url: "policy/js_policy",
  6.         url: "/export/?managedObjects=" + Mos,
  7.         async: false,
  8.         data: JSON.stringify(dataToSend),
  9.         contentType: "application/json; charset=utf-8",
  10.         dataType: "json",
  11.         complete: function (XMLHttpRequest, textStatus) {
  13.         }
  14.     });

(Note: The code you provided contains some syntax issues. You may need to fix those to make it work correctly.)

英文:

I think the problem is just with list that you want to send in your request.

  1. var dataToSend = {
  2.           list: [{ fieldname: &#39;ABC&#39; }, { fieldname: &#39;DEF&#39; }]; // your list should something like this.
  3.     $.ajax({
  4.       type: &quot;POST&quot;,
  5.       //url: &quot;policy/js_policy&quot;,
  6.       url: &quot;/export/?managedObjects=&quot; + Mos ,
  7.       async: false,
  8.       data: JSON.stringify(dataToSend),
  9.       contentType: &quot;application/json; charset=utf-8&quot;,
  10.       dataType: &quot;json&quot;,
  11.       complete: function (XMLHttpRequest, textStatus) {
  12.         
  13.       }
  14.     });

huangapple
  • 本文由 发表于 2020年7月31日 16:32:09
  • 转载请务必保留本文链接：https://go.coder-hub.com/63188401.html
  • ajax
  • api
  • java
  • javascript
  • spring-restcontroller
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