2019独角兽企业重金招聘Python工程师标准>>> 
public final class HttpTest {
public static OkHttpClient httpClient = new OkHttpClient.Builder()
.readTimeout(2, TimeUnit.SECONDS)
.writeTimeout(2, TimeUnit.SECONDS)
.connectTimeout(3, TimeUnit.SECONDS)
.build();
private Map map = new ConcurrentHashMap();
private static String URL_FACTOR = FileUtil.readString(new File("D:\\WorkSpace\\url.txt"), "utf-8");
private final static String AUTH_VALULE = FileUtil.readString(new File("D:\\WorkSpace\\auth.txt"), "utf-8");
private final static List IMEIS = Files.linesOf(new File("D:\\WorkSpace\\param.txt"), "utf-8");
/**
* 先指定工作目录，不然会超时告警
* @throws IOException
*/
@Test
public void test01() throws IOException {
AtomicInteger atomicInteger = new AtomicInteger();
long stratTime = System.currentTimeMillis();
for(String imei : this.IMEIS){
// getResponseDataByWebClient(imei, this.map);
// getResponseDate(imei, this.map);
getResponseByRestTemplate(imei, this.map);
atomicInteger.getAndIncrement();
if (atomicInteger.get() == 20){
break;
}
}
System.out.println("查询耗时：" + (System.currentTimeMillis() - stratTime));
System.out.println("查得量: " + map.size());
}
// ========= okhttpclient test
public void getResponseDate(String imei, Map map) throws IOException {
String url = URL_FACTOR.replace("{imei}", URLEncoder.encode(imei, "UTF-8"));
Request request = new Request.Builder()
.url(url)
.addHeader("Authorization", AUTH_VALULE)
.get()
.build();
Response response = httpClient.newCall(request).execute();
String string = response.body().string();
Map data = JSON.parseObject(string).getObject("data", Map.class);
if(data != null){
map.putAll(data);
}
}
// ========= webclient test
private static WebClient webClient = WebClient.builder().baseUrl("http://host:port").build();
private static String requestPath = "uri{param}";
public void getResponseDataByWebClient(String imei, Map map) throws UnsupportedEncodingException {
String uri = requestPath.replace("{param}", URLEncoder.encode(imei, "UTF-8"));
String response = webClient
.get()
.uri(uri)
.header(HttpHeaders.AUTHORIZATION, AUTH_VALULE)
// .exchange()
// .block(Duration.ofSeconds(3)).bodyToFlux(String.class).blockFirst();
// .flatMap(clientResponse -> clientResponse.bodyToMono(String.class)).block();
.retrieve().bodyToMono(String.class).block();
//
Map data = JSON.parseObject(response).getObject("data", Map.class);
if (data != null){
map.putAll(data);
}
}
// ========= restTemplate test
private static RestTemplate restTemplate = new RestTemplate();
public void getResponseByRestTemplate(String imei, Map map) throws UnsupportedEncodingException {
String url = URL_FACTOR.replace("{param}", URLEncoder.encode(imei, "UTF-8"));
HttpHeaders httpHeaders = new HttpHeaders();
httpHeaders.add(HttpHeaders.AUTHORIZATION, AUTH_VALULE);
httpHeaders.setContentType(MediaType.APPLICATION_JSON_UTF8);
HttpEntity requestEntity = new HttpEntity<>(null, httpHeaders);
String resp = restTemplate.exchange(url, HttpMethod.GET, requestEntity, String.class).getBody();
Map data = JSON.parseObject(resp).getObject("data", Map.class);
if (data != null){
map.putAll(data);
}
}
@Test
public void test03() throws IOException {
String url = "www.baidu.com";
Request request = new Request.Builder()
.url(url)
.get()
.build();
Response response = httpClient.newCall(request).execute();
String data = response.body().string();
System.out.println(data);
}
static class FileUtil{
public static String readString(File file, String charsetName){
InputStream inputStream = null;
InputStreamReader inputStreamReader = null;
BufferedReader bufferedReader = null;
try {
inputStream = new FileInputStream(file);
inputStreamReader = new InputStreamReader(inputStream);
bufferedReader = new BufferedReader(inputStreamReader);
return bufferedReader.readLine();
} catch (Exception e) {
e.printStackTrace();
}finally {
try {
bufferedReader.close();
inputStreamReader.close();
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
}
}
总结：
1、单线程下效率比较 okhttpclient > restTemplate（不包含异步） > flux-webclient
2、异步比较未测试 预计 flux-webclient > okhttpclient > restTemplate (不包含异步)