Json 如何在响应主体上添加额外的标题
只需查看Json 如何在响应主体上添加额外的标题,json,spring,spring-mvc,Json,Spring,Spring Mvc,只需查看SpringMVC-3.2.xcontrolleraction方法的代码片段。生成JSON非常容易,但无法仅为特定控制器的此操作/特定操作方法添加附加自定义头。并非所有的JSON@ResponseBody操作方法都通用 @RequestMapping(value="ajaxDenied", method = RequestMethod.GET) public @ResponseBody Map<String, Object> ajaxDenied(ModelMap model
SpringMVC-3.2.x
controlleraction方法的代码片段。生成JSON
非常容易,但无法仅为特定控制器的此操作/特定操作方法添加附加自定义头。并非所有的JSON
@ResponseBody
操作方法都通用
@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;
}
此操作方法可以生成带有转义字符的JSON
字符串,而不是纯的JSON
,因此取决于浏览器如何解析它,这会导致chrome失败。输出就像
"{\"message\":{\"summary\":\"Authenticated successfully.\",\"location\":\"/\",\"severity\":\"info\",\"code\":\"200\"},\"success\":true}"
但是我们期望的产出
{
"message":{
"summary": "Authenticated successfully.",
"location":"/",
"severity":"info",
"code":"200"
},
"success":true
}
我想根据特定控制器的特定操作条件,生成带有附加标题的纯
JSON
。以下是根据M.Deinum
@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));
}
@RequestMapping(value=“ajaxSuccess”,method=RequestMethod.GET)
公共响应ajaxSuccess(){
Map message=newhashmap();
message.put(“严重性”、“信息”);
message.put(“位置”、“/”);
message.put(“摘要”,“已成功验证”);
电文("电码",200),;
Map json=newhashmap();
json.put(“success”,true);
put(“message”,message);
HttpHeaders=新的HttpHeaders();
添加(“内容类型”、“应用程序/json;字符集=UTF-8”);
标题。添加(“X-Fsl-Location”、“/”;
标题。添加(“X-Fsl-Response-Code”、“302”);
返回(新的ResponseEntity(json,headers,HttpStatus.OK));
}
您还可以使用HttpServletResponse
以更简单的方式添加状态和标题:
@RequestMapping(value="ajaxSuccess", method = RequestMethod.GET)
@ResponseBody
public String ajaxSuccess(HttpServletResponse response) {
response.addHeader("header-name", "value");
response.setStatus(200);
return "Body";
}
因此,您需要按照提供的添加以下maven依赖项:
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-servlet-api</artifactId>
<version>7.0.53</version>
<scope>provided</scope>
</dependency>
org.apache.tomcat
TomcatServletAPI
7.0.53
假如
您可以向ResponseEntity builder添加标题。我认为这样比较干净
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
// ...
@GetMapping("/my/endpoint")
public ResponseEntity myEndpointMethod() {
HttpHeaders headers = new HttpHeaders();
headers.add(HttpHeaders.CONTENT_TYPE, "application/json; charset=UTF-8");
return ResponseEntity.ok()
.headers(headers)
.body(data);
}
你为什么要改变自己?让Spring为您处理这个问题。。。只需返回一个
ResponseEntity
而不是ResponseEntity
,取下映射器,让spring来完成繁重的工作。是的,你是对的。我太笨了,无法建立这样的逻辑。非常感谢你的建议。你找到解决办法了吗?在依赖项升级之后,我也有同样的问题。我的响应主体和引用将以\进行转义。只需按照答案进行操作,我希望您将获得类似的解决方案HttpHeaders=new HttpHeaders();添加(“授权令牌”,令牌);返回新的响应属性(“身份验证成功”,标题,HttpStatus.OK);较新版本的Spring返回只读HttpHeader,使用此示例将抛出UnsupportedOperationException。
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
// ...
@GetMapping("/my/endpoint")
public ResponseEntity myEndpointMethod() {
HttpHeaders headers = new HttpHeaders();
headers.add(HttpHeaders.CONTENT_TYPE, "application/json; charset=UTF-8");
return ResponseEntity.ok()
.headers(headers)
.body(data);
}