如何在响应正文上添加其他标题

  • Z时代
  • 2024-01-10
  • 分类：问答

只需查看SpringMVC-3.2.x控制器操作方法的代码段即可。它非常容易生成，JSON但是无法仅针对特定控制器的此操作/特定操作方法添加其他自定义标头。并非所有JSON

@ResponseBody动作方法都通用。

@RequestMapping(value="ajaxDenied", method = RequestMethod.GET)
public @ResponseBody Map<String, Object> ajaxDenied(ModelMap model) {
    Map<String, Object> message = new HashMap<String, Object>();
    message.put("severity", "error");
    message.put("summary", "Restricted access only");
    message.put("code", 200);
    Map<String, Object> json = new HashMap<String, Object>();
    json.put("success", false);
    json.put("message", message);
    return json;
}

以不同的方式，我可以根据需要添加其他标头，但这在生成pure时存在一些问题JSON。它生成错误，JSON并能够解析少数浏览器。

@RequestMapping(value="ajaxSuccess", method = RequestMethod.GET)
public ResponseEntity<String> ajaxSuccess(){
    Map<String, Object> message = new HashMap<String, Object>();
    message.put("severity", "info");
    message.put("location", "/");
    message.put("summary", "Authenticated successfully.");
    message.put("code", 200);
    Map<String, Object> json = new HashMap<String, Object>();
    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<String>(data, headers, HttpStatus.OK));
}

此操作方法可能会生成JSON带有转义字符而不是纯字符的String，JSON因此取决于浏览器如何解析，这会导致chrome失败。输出看起来像

"{\"message\":{\"summary\":\"Authenticated successfully.\",\"location\":\"/\",\"severity\":\"info\",\"code\":\"200\"},\"success\":true}"

但是我们想要的输出

{
  "message":{
    "summary": "Authenticated successfully.",
    "location":"/",
    "severity":"info",
    "code":"200"
  },
  "success":true
}

我想JSON根据特定控制器的特定操作的条件生成带有其他标头的纯文本。

回答：

这是 *

@RequestMapping(value="ajaxSuccess", method = RequestMethod.GET)
public ResponseEntity<Map<String, Object>> ajaxSuccess(){
    Map<String, Object> message = new HashMap<String, Object>();
    message.put("severity", "info");
    message.put("location", "/");
    message.put("summary", "Authenticated successfully.");
    message.put("code", 200);
    Map<String, Object> json = new HashMap<String, Object>();
    json.put("success", true);
    json.put("message", message);
    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<Map<String, Object>>(json, headers, HttpStatus.OK));
}

以上是 如何在响应正文上添加其他标题 的全部内容， 来源链接： utcz.com/qa/418666.html

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