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POHow do I could add additional header on Response Body
 

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  1. POHow do I could add additional header on Response Body
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    <p>Just see the code snippet of <code>SpringMVC-3.2.x</code> controller action method. Its quite easy to generate <code>JSON</code> but unable to add addtional custom header only for this action/specific action method for specific controller. not common for all <code>JSON</code> <code>@ResponseBody</code> action method .</p> <pre><code>@RequestMapping(value="ajaxDenied", method = RequestMethod.GET) public @ResponseBody Map&lt;String, Object&gt; ajaxDenied(ModelMap model) { Map&lt;String, Object&gt; message = new HashMap&lt;String, Object&gt;(); message.put("severity", "error"); message.put("summary", "Restricted access only"); message.put("code", 200); Map&lt;String, Object&gt; json = new HashMap&lt;String, Object&gt;(); json.put("success", false); json.put("message", message); return json; } </code></pre> <p>In the different way I could add additional headers as my demand but here is some problem in generating pure <code>JSON</code>. Its generate buggy <code>JSON</code> and able to parse few browser.</p> <pre><code>@RequestMapping(value="ajaxSuccess", method = RequestMethod.GET) public ResponseEntity&lt;String&gt; ajaxSuccess(){ Map&lt;String, Object&gt; message = new HashMap&lt;String, Object&gt;(); message.put("severity", "info"); message.put("location", "/"); message.put("summary", "Authenticated successfully."); message.put("code", 200); Map&lt;String, Object&gt; json = new HashMap&lt;String, Object&gt;(); json.put("success", true); json.put("message", message); String data = ""; try { ObjectMapper mapper = new ObjectMapper(); data = mapper.writeValueAsString(json); } catch (Exception e) { //TODO } HttpHeaders headers = new HttpHeaders(); headers.add("Content-Type", "application/json; charset=UTF-8"); headers.add("X-Fsl-Location", "/"); headers.add("X-Fsl-Response-Code", "302"); return (new ResponseEntity&lt;String&gt;(data, headers, HttpStatus.OK)); } </code></pre> <p>this action method could generate <code>JSON</code> String with escape character rather than pure <code>JSON</code> so depend on browser how it will be parse, Its cause failure for chrome. The output just look like</p> <pre><code>"{\"message\":{\"summary\":\"Authenticated successfully.\",\"location\":\"/\",\"severity\":\"info\",\"code\":\"200\"},\"success\":true}" </code></pre> <p>but our desired output</p> <pre><code>{ "message":{ "summary": "Authenticated successfully.", "location":"/", "severity":"info", "code":"200" }, "success":true } </code></pre> <p>I want to generate pure <code>JSON</code> with additional headers based on conditions for specific action of specific controller.</p>
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    1. USMd Shahed Hossain
    1. USMd Shahed Hossain
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      1. POHow do I could add additional header on Response Body
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    1. COWhy are you converting yourself? Let Spring handle that for you... Just return a `ResponseEntity<Map<String, Object>>` instead of `ResponseEntity<String>`, remove the mapper and let spring do the heavy lifting.
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      1. POHow do I could add additional header on Response Body
      1. USM. Deinum
    2. COYes you are right. I was stupid enough that unable to buildup such type of logic. Thanks a lots for your suggestion.
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      1. POHow do I could add additional header on Response Body
      1. USMd Shahed Hossain
    3. CODid you find a solution to this? I have the same problem after a dependency upgrade. The body of my ResponseEntity<String> and the quotes are getting escaped with \.
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