/
RequestHeaderController.java
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/
RequestHeaderController.java
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package com.ripjava.spring.mvc.model.controller;
import org.springframework.http.HttpHeaders;
import org.springframework.stereotype.Controller;
import org.springframework.util.MultiValueMap;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.ResponseBody;
import java.net.InetSocketAddress;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
@Controller
public class RequestHeaderController {
@GetMapping("/RequestHeader/AcceptEncoding")
@ResponseBody
public String handle(@RequestHeader("Accept-Encoding") String encoding){
return String.format("RequestHeader: Accept-Encoding - %s", encoding);
}
@GetMapping("/RequestHeader/NumberType")
@ResponseBody
public String handleNumber(@RequestHeader("Header-Number") int number){
return String.format("RequestHeader: Header-Number - %s", number);
}
@GetMapping("/RequestHeader/Map")
@ResponseBody
public String handleMap(@RequestHeader Map<String, String> headers){
StringBuilder sb = new StringBuilder();
headers.forEach((key, value) -> {
sb.append(String.format("RequestHeader: '%s' = %s", key, value))
.append(System.lineSeparator());
});
return sb.toString();
}
@GetMapping("/RequestHeader/MultiValueMap")
@ResponseBody
public String handleMap(@RequestHeader MultiValueMap<String, String> headers){
StringBuilder sb = new StringBuilder();
headers.forEach((key, value) -> {
sb.append(String.format("RequestHeader: '%s' = %s", key, value.stream().collect(Collectors.joining("|"))))
.append(System.lineSeparator());
});
return sb.toString();
}
@GetMapping("/RequestHeader/HttpHeaders")
@ResponseBody
public String handleMap(@RequestHeader HttpHeaders headers){
InetSocketAddress host = headers.getHost();
return "http://" + host.getHostName() + ":" + host.getPort();
}
@GetMapping("/RequestHeader/WithName")
@ResponseBody
public String handleWithName(@RequestHeader(name = "Accept-Encoding") String encoding){
return String.format("RequestHeader: Accept-Encoding - %s", encoding);
}
@GetMapping("/RequestHeader/WithValue")
@ResponseBody
public String handleWithValue(@RequestHeader(value = "Accept-Encoding") String encoding){
return String.format("RequestHeader: Accept-Encoding - %s", encoding);
}
@GetMapping("/RequestHeader/NonRequiredHeader")
public String handleNonRequiredHeader(
@RequestHeader(value = "optional-header", required = false) String optionalHeader) {
return String.format("RequestHeader: optional-header - %s", optionalHeader);
}
@GetMapping("/RequestHeader/OptionalRequiredHeader")
public String handleOptionalRequiredHeader(
@RequestHeader(value = "optional-header") Optional<String> optionalHeader) {
return String.format("RequestHeader: optional-header - %s", optionalHeader);
}
@GetMapping("/RequestHeader/DefaultHeader")
public String handleDefaultHeader(
@RequestHeader(value = "optional-header", defaultValue ="test") String optionalHeader) {
return String.format("RequestHeader: optional-header - %s", optionalHeader);
}
}