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Reading header in spring boot using @RequestHeader annotation
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4 files changed

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-76
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4 files changed

+199
-76
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‎pom.xml‎

Lines changed: 7 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -23,17 +23,20 @@
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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<exclusions>
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<!-- Exclude tomcat -->
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<!-- <exclusions>
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<exclusion>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-tomcat</artifactId>
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</exclusion>
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</exclusions>
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</exclusions> -->
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</dependency>
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<dependency>
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<!-- Unblock to enable jetty server -->
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<!-- <dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-jetty</artifactId>
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</dependency>
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</dependency> -->
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<dependency>
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<groupId>org.projectlombok</groupId>

‎src/main/java/com/javaprogram/api/RequestHeadersAPI.java‎

Lines changed: 130 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,130 @@
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package com.javaprogram.api;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.stream.Collectors;
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import java.util.Set;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.util.MultiValueMap;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestHeader;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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@RequestMapping("request/headers")
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public class RequestHeadersAPI {
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Logger logger = LoggerFactory.getLogger(RequestHeadersAPI.class);
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// individual headers.
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@GetMapping("individual/country")
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public ResponseEntity<String> getHeaderFromLocale(@RequestHeader(value = "locale") String locale) {
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logger.info("getmapping for request hreaders : " + locale);
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String country = "USA is leading country in the world.";
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if (locale.equals("IN")) {
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country = "India";
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} else if (locale.equals("UK")) {
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country = "United Kingdom";
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} else if (locale.equals("AUS")) {
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country = "Australia";
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} else if (locale.equals("IT")) {
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country = "Italiy";
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}
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String response = "Country for the given locale " + locale + " is " + country;
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if (locale.trim().length() == 0) {
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response = country;
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}
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return new ResponseEntity<String>(response, HttpStatus.OK);
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}
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@GetMapping("individual/phonenumnber")
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public ResponseEntity<String> getHeaderNumberValue(@RequestHeader(value = "phone-number") long phoneNumber) {
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logger.info("getmapping for request hreaders : " + phoneNumber);
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boolean isValidNumber = false;
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if (String.valueOf(phoneNumber).length() == 10) {
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isValidNumber = true;
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}
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String response = "Given phone number " + phoneNumber + " is " + (isValidNumber ? "valid" : "invalid");
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return new ResponseEntity<String>(response, HttpStatus.OK);
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}
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// All headers once
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@GetMapping("allheaders/map")
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public ResponseEntity<String> getAllHeadersAsMap(@RequestHeader Map<String, String> allHeaders) {
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logger.info("All headers are");
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Set<Entry<String, String>> entrySet = allHeaders.entrySet();
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StringBuffer buffer = new StringBuffer();
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buffer.append("header count " + allHeaders.size() + " \n");
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for (Entry<String, String> e : entrySet) {
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logger.info("Header " + e.getKey() + "= " + e.getValue());
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buffer.append("Header " + e.getKey() + "= " + e.getValue() + " \n");
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}
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return new ResponseEntity<String>(buffer.toString(), HttpStatus.OK);
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}
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@GetMapping("allheaders/multimap")
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public ResponseEntity<String> getAllHeadersAsMultiMap(@RequestHeader MultiValueMap<String, String> allHeaders) {
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logger.info("All headers with MultiValueMap");
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// StringBuffer
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StringBuffer localeBuffer = new StringBuffer();
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allHeaders.forEach((k, v) -> {
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logger.info(k + " = value = " + v.stream().collect(Collectors.toList()));
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if (k.equals("locale")) {
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localeBuffer.append(v);
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}
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});
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return new ResponseEntity<String>("Repeated header : " + localeBuffer.toString(), HttpStatus.OK);
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}
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@GetMapping("allheaders/httpheaders")
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public ResponseEntity<String> getAllHeadersAsHttpHeaders(@RequestHeader HttpHeaders allHttpHeaders) {
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logger.info("All headers with MultiValueMap");
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StringBuffer httpBuffer = new StringBuffer();
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String firstValue = allHttpHeaders.getFirst("locale");
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String hostName = allHttpHeaders.getHost().getHostName();
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int port = allHttpHeaders.getHost().getPort();
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httpBuffer.append(" first value of locale : " + firstValue).append("\nhost name : " + hostName)
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.append("\nport : " + port);
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return new ResponseEntity<String>("HttpHeaders response: " + httpBuffer.toString(), HttpStatus.OK);
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}
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@GetMapping("individual/requried")
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public ResponseEntity<String> mandateHeader(@RequestHeader(value = "locale", required = true) String locale) {
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return new ResponseEntity<String>(locale, HttpStatus.OK);
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}
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@GetMapping("individual/default")
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public ResponseEntity<String> Header(@RequestHeader(value = "locale", defaultValue = "USA") String locale) {
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return new ResponseEntity<String>(locale, HttpStatus.OK);
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}
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}

‎src/main/java/com/javaprogram/springbootapp/SpringBootAppApplication.java‎

Lines changed: 17 additions & 27 deletions
Original file line numberDiff line numberDiff line change
@@ -2,40 +2,30 @@
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.web.embedded.jetty.JettyServletWebServerFactory;
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import org.springframework.boot.web.server.ErrorPage;
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import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
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import org.springframework.context.annotation.Bean;
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import org.springframework.http.HttpStatus;
10-
5+
import org.springframework.context.annotation.ComponentScan;
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7+
@ComponentScan("com")
128
@SpringBootApplication
139
public class SpringBootAppApplication {
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1511
public static void main(String[] args) {
1612
SpringApplication.run(SpringBootAppApplication.class, args);
1713
}
18-
14+
1915
/*
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21-
public JettyEmbeddedServletContainerFactory jettyEmbeddedServletContainerFactory() {
22-
JettyEmbeddedServletContainerFactory jettyContainer =
23-
new JettyEmbeddedServletContainerFactory();
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25-
jettyContainer.setPort(9000);
26-
jettyContainer.setContextPath("/home");
27-
return jettyContainer;
28-
}
16+
*
17+
* public JettyEmbeddedServletContainerFactory
18+
* jettyEmbeddedServletContainerFactory() { JettyEmbeddedServletContainerFactory
19+
* jettyContainer = new JettyEmbeddedServletContainerFactory();
20+
*
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* jettyContainer.setPort(9000); jettyContainer.setContextPath("/home"); return
22+
* jettyContainer; }
23+
*
24+
*/
2925

30-
*/
31-
32-
@Bean
33-
public ConfigurableServletWebServerFactory webServerFactory()
34-
{
35-
JettyServletWebServerFactory factory = new JettyServletWebServerFactory();
36-
factory.setPort(9000);
37-
factory.setContextPath("/myapp");
38-
factory.addErrorPages(new ErrorPage(HttpStatus.NOT_FOUND, "/notfound.html"));
39-
return factory;
40-
}
26+
// @Bean public ConfigurableServletWebServerFactory webServerFactory() {
27+
// JettyServletWebServerFactory factory = new JettyServletWebServerFactory();
28+
// factory.setPort(9000); factory.setContextPath("/myapp");
29+
// factory.addErrorPages(new ErrorPage(HttpStatus.NOT_FOUND, "/notfound.html"));
30+
// return factory; }
4131
}

‎src/main/resources/application.properties‎

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Original file line numberDiff line numberDiff line change
@@ -1,45 +1,45 @@
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#Jetty Configurations
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server.port=8082
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server.servlet.context-path=/home
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server.jetty.acceptors=1
6-
#Number of acceptor threads to use. When the value is -1.
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server.jetty.accesslog.append=false
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# Append to log.
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server.jetty.accesslog.date-format=dd/MMM/yyyy:HH:mm:ss Z
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# Timestamp format of the request log.
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server.jetty.accesslog.enabled=false
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# Enable access log.
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server.jetty.accesslog.extended-format=false
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# Enable extended NCSA format.
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server.jetty.accesslog.file-date-format=dd/MMM/yyyy
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# Date format to place in a log filename.
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server.jetty.accesslog.filename= app.log
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# Log filename. If not specified, logs redirect to "System.err".
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server.jetty.accesslog.locale=IN
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# Locale of the request log.
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server.jetty.accesslog.log-cookies=false
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# Enable logging of the request cookies.
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server.jetty.accesslog.log-latency=false
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# Enable logging of request processing time.
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server.jetty.accesslog.log-server=false
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# Enable logging of the request hostname.
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server.jetty.accesslog.retention-period=31
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server.jetty.accesslog.time-zone=GMT
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# Timezone of the request log.
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#server.jetty.max-http-post-size=200000B # Maximum size of the HTTP post or put content.
43-
# Number of selector threads to use. When the value is -1.
44-
server.jetty.selectors=2
45-
1+
##Jetty Configurations
2+
#
3+
#server.port=8082
4+
#server.servlet.context-path=/home
5+
#server.jetty.acceptors=1
6+
##Number of acceptor threads to use. When the value is -1.
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#
8+
#server.jetty.accesslog.append=false
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# # Append to log.
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#
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#server.jetty.accesslog.date-format=dd/MMM/yyyy:HH:mm:ss Z
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## Timestamp format of the request log.
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#
14+
#server.jetty.accesslog.enabled=false
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## Enable access log.
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#
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#server.jetty.accesslog.extended-format=false
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# # Enable extended NCSA format.
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#
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#server.jetty.accesslog.file-date-format=dd/MMM/yyyy
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## Date format to place in a log filename.
22+
#
23+
#server.jetty.accesslog.filename= app.log
24+
## Log filename. If not specified, logs redirect to "System.err".
25+
#
26+
#server.jetty.accesslog.locale=IN
27+
## Locale of the request log.
28+
#
29+
#server.jetty.accesslog.log-cookies=false
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## Enable logging of the request cookies.
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#
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#server.jetty.accesslog.log-latency=false
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## Enable logging of request processing time.
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#
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#server.jetty.accesslog.log-server=false
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## Enable logging of the request hostname.
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#
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#server.jetty.accesslog.retention-period=31
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#server.jetty.accesslog.time-zone=GMT
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## Timezone of the request log.
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#
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##server.jetty.max-http-post-size=200000B # Maximum size of the HTTP post or put content.
43+
## Number of selector threads to use. When the value is -1.
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#server.jetty.selectors=2
45+
#

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