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[英]How to get json response from inside the page from Webview(I get a response with user-agent)?
[英]How can I get a User-agent from user request?
我必須從用戶請求中獲取User-agent
並將自定義信息添加到該User-agent
並將其發回。 我有以下 controller:
@RequestMapping("/orders")
@Controller
public class MyController {
@GetMapping("/new_order")
public String newOrder(RedirectAttributes redirectAttributes, Model model) {
if (isUserNotAuthorized()) {
return getLoginRedirectPage(redirectAttributes, "/login");
}
model.addAttribute("order", new Order());
// How to retrieve User-agent and add some custom info and return it back to the user?
return "new_order";
}
}
謝謝你的幫助!
您可以通過以下方式從請求中獲取 header
@GetMapping("/new_order")
public String newOrder(@RequestHeader(value = "User-Agent") String userAgent, RedirectAttributes redirectAttributes, Model model) {
//...
}
要將標頭發送回客戶端,您可以使用 ResponseEntity
public ResponseEntity<String> newOrder() {
HttpHeaders responseHeaders = new HttpHeaders();
responseHeaders.set("User-Agent", "updated-Value");
return ResponseEntity.ok()
.headers(responseHeaders)
.body("New order created.");
}
在您的 controller 方法中注入HttpServletRequest
。 從那里使用HttpServletRequest#getHeader(...)
獲取您需要的 header。
@GetMapping("/new_order")
public String newOrder(RedirectAttributes redirectAttributes, HttpServletRequest request, Model model) {
String userAgent = request.getHeader("User-Agent");
if (isUserNotAuthorized()) {
return getLoginRedirectPage(redirectAttributes, "/login");
}
model.addAttribute("order", new Order());
// How to retrieve User-agent and add some custom info and return it back to the user?
return "new_order";
}
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