文章目錄

• 1 OKHttpUtil
• • 1.1 引言
  • 1.2 OKHttpUtil功能
  • 1.3 OKHttpUtil使用
  • • 1.3.1 maven引入
    • 1.3.2 GET
    • 1.3.3 POST
    • 1.3.4 文件上傳與下載
    • 1.3.5 HttpRequest 鏈式請求
    • 1.3.6 post form日志
  • 1.4 在 Springboot 中使用
  • • 1.4.1 maven引入
    • 1.4.2 配置
    • 1.4.3 快速封裝外部接口

1 OKHttpUtil

1.1 引言

在Java的世界中，Http客戶端之前一直是Apache家的HttpClient占據主導，但是由于此包較為龐大，API又比較難用，因此并不使用很多場景。而新興的OkHttp、Jodd-http固然好用，但是面對一些場景時，學習成本還是有一些的。

很多時候，我們想追求輕量級的Http客戶端，并且追求簡單易用。而OKHttp是一套處理 HTTP 網絡請求的依賴庫，由 Square 公司設計研發并開源，目前可以在 Java 和 Kotlin 中使用。

對于 Android App來說，OkHttp 現在幾乎已經占據了所有的網絡請求操作，對于服務器端請求外部接口也是必備的選擇 。針對OKHttp，OkHttpUtil做了一層封裝，使Http請求變得無比簡單

1.2 OKHttpUtil功能

OKHttpUtil功能：

• 根據URL自動判斷是請求HTTP還是HTTPS，不需要單獨寫多余的代碼。
• 默認情況下Cookie自動記錄，比如可以實現模擬登錄，即第一次訪問登錄 URL后后續請求就是登錄狀態。
• 自動識別304跳轉并二次請求
• 支持代理配置
• 支持referer配置
• 支持User-Agent配置
• 自動識別并解壓Gzip格式返回內容
• 支持springboot 配置文件
• 極簡的封裝調用

1.3 OKHttpUtil使用

1.3.1 maven引入

<dependency><groupId>io.github.admin4j</groupId><artifactId>http</artifactId><version>0.4.0</version> </dependency>

最新版查詢：https://search.maven.org/artifact/io.github.admin4j/http

1.3.2 GET

最簡單的使用莫過于用HttpUtil工具類快速請求某個接口：

Response response = HttpUtil.get(https://github.com/search, Pair.of(q, okhttp)); System.out.println(response = + response);

1.3.3 POST

一行代碼即可搞定，當然Post請求也很簡單：
JSON 格式的body

Response post = HttpUtil.post(https://oapi.dingtalk.com/robot/send?access_token=27f5954ab60ea8b2e431ae9101b1289c138e85aa6eb6e3940c35ee13ff8b6335, {\msgtype\: \text\,\text\: {\content\:\【反饋提醒】我就是我, 是不一樣的煙火\}}); System.out.println("post = "+ post);

form 請求

Map<String, Object> formParams = new HashMap<>(16); formParams.put(username, admin); formParams.put(password, admin123); Response response = HttpUtil.postForm(http://192.168.1.13:9100/auth/login,formParams); System.out.println("response = "+ response);

返回格式為JSON的，可以使用 HttpJsonUtil 自動返回JsonObject

JSONObject object=HttpJsonUtil.get(https://github.com/search, Pair.of(q,http), Pair.of(username,agonie201218)); System.out.println("object = "+object);

1.3.4 文件上傳與下載

文件上傳

File file=new File(C:\\Users\\andanyang\\Downloads\\Sql.txt); Map<String, Object> formParams=new HashMap<>(); formParams.put(key,test); formParams.put(file,file); formParams.put(token,WXyUseb-D4sCum-EvTIDYL-mEehwDtrSBg-Zca7t:qgOcR2gUoKmxt-VnsNb657Oatzo=:eyJzY29wZSI6InpoYW56aGkiLCJkZWFkbGluZSI6MTY2NTMwNzUxNH0=); Response response=HttpUtil.upload(https://upload.qiniup.com/,formParams); System.out.println(response);

文件下載

HttpUtil.down(https://gitee.com/admin4j/common-http,path/);

1.3.5 HttpRequest 鏈式請求

get

Response response = HttpRequest.get(https://search.gitee.com/?skin=rec&type=repository).queryMap(q,admin4j).header(HttpHeaderKey.USER_AGENT,admin4j).execute(); System.out.println("response = "+ response);

post form

Response response = HttpRequest.get(http://192.168.1.13:9100/auth/login).queryMap(q,admin4j).header(HttpHeaderKey.USER_AGENT,admin4j).form(username,admin).form(password,admin123).execute(); System.out.println("response = "+response);

1.3.6 post form日志

16:49:14.092[main]DEBUG io.github.admin4j.http.core.HttpLogger- -->GET http://192.168.1.13:9100/auth/login?q=admin4j http/1.1 16:49:14.094[main]DEBUG io.github.admin4j.http.core.HttpLogger-User-Agent:admin4j 16:49:14.094[main]DEBUG io.github.admin4j.http.core.HttpLogger-Host:192.168.1.13:9100 16:49:14.094[main]DEBUG io.github.admin4j.http.core.HttpLogger-Connection:Keep-Alive 16:49:14.094[main]DEBUG io.github.admin4j.http.core.HttpLogger-Accept-Encoding:gzip 16:49:14.094[main]DEBUG io.github.admin4j.http.core.HttpLogger- -->END GET 16:49:14.670[main]DEBUG io.github.admin4j.http.core.HttpLogger-<--200OK http://192.168.1.13:9100/auth/login?q=admin4j (575ms) 16:49:14.670[main]DEBUG io.github.admin4j.http.core.HttpLogger-transfer-encoding:chunked 16:49:14.670[main]DEBUG io.github.admin4j.http.core.HttpLogger-Vary:Origin 16:49:14.670[main]DEBUG io.github.admin4j.http.core.HttpLogger-Vary:Access-Control-Request-Method 16:49:14.670[main]DEBUG io.github.admin4j.http.core.HttpLogger-Vary:Access-Control-Request-Headers 16:49:14.670[main]DEBUG io.github.admin4j.http.core.HttpLogger-Vary:Origin 16:49:14.670[main]DEBUG io.github.admin4j.http.core.HttpLogger-Vary:Access-Control-Request-Method 16:49:14.670[main]DEBUG io.github.admin4j.http.core.HttpLogger-Vary:Access-Control-Request-Headers 16:49:14.671[main]DEBUG io.github.admin4j.http.core.HttpLogger-Content-Type:application/json;charset=utf-8 16:49:14.671[main]DEBUG io.github.admin4j.http.core.HttpLogger-Date:Tue,08Nov 2022 08:49:14GMT 16:49:14.671[main]DEBUG io.github.admin4j.http.core.HttpLogger- 16:49:14.671[main]DEBUG io.github.admin4j.http.core.HttpLogger-{code:406,msg:Full authentication is required to access this resource} 16:49:14.671[main]DEBUG io.github.admin4j.http.core.HttpLogger-<--END HTTP(76-byte body) response=Response{protocol=http/1.1,code=200,message=OK,url=http://192.168.1.13:9100/auth/login?q=admin4j}

1.4 在 Springboot 中使用

1.4.1 maven引入

<dependency><groupId>io.github.admin4j</groupId><artifactId>common-http-starter</artifactId><version>0.4.0</version> </dependency>

最新版查詢 io.github.admin4j:common-http-starter
spring 版可以對 OkHttp進行個性化配置

1.4.2 配置

public class HttpConfig {/*** 日志等級*/private HttpLoggingInterceptor.Level loggLevel = HttpLoggingInterceptor.Level.BODY;/*** 讀取超時時間，秒*/private long readTimeout = 30;/*** 鏈接超時時間*/private long connectTimeout = 30;private boolean followRedirects = false;/*** 最大的連接數*/private int maxIdleConnections = 5;/*** 最大的kepAlive 時間 秒*/private long keepAliveDuration = 5;private String userAgent = OKHTTP;/*** 是否支持cookie*/private boolean cookie = false;private ProxyConfig proxy;@Datapublic static class ProxyConfig {private Proxy.Type type = Proxy.Type.HTTP;private String host;private Integer port = 80;private String userName;private String password;} }

1.4.3 快速封裝外部接口

以實體項目為例，封裝 ebay接口

public class EbayClient extends ApiJsonClient {/*** 店鋪配置** @param storeId*/public EbayClient(Long storeId) {//TODO 獲取店鋪相關配置Map<String, String> config = new HashMap<>();String basePath = "https://api.ebay.com";defaultHeaderMap.put(Authorization, Bearer + config.get(accessToken));defaultHeaderMap.put(X-EBAY-C-MARKETPLACE-ID, config.get(marketplaceId));} }

EbayClient 封裝ebay api請求 基礎類

/*** ebay 庫存相關api* @author andanyang*/ public class EbayInventoryClient extends EbayClient {/*** 店鋪配置** @param storeId*/public EbayInventoryClient(Long storeId) {super(storeId);}/*** 庫存列表** @param limit* @param offset* @return* @throws IOException*/public JSONObject inventoryItem(Integer limit, Integer offset) throws IOException {Map<String, Object> queryMap = new HashMap(2);queryMap.put(limit, limit);queryMap.put(offset, offset);return get(/sell/inventory/v1/inventory_item, queryMap);} }

EbayInventoryClient 封裝ebay 庫存 api請求

使用

EbayInventoryClient ebayInventoryClient=new EbayInventoryClient(1L); JSONObject jsonObject=ebayInventoryClient.inventoryItem(0,10); /*** 訂單相關api* @author andanyang*/ public class EbayOrderClient extends EbayClient {/*** 店鋪配置** @param storeId*/public EbayOrderClient(Long storeId) {super(storeId);}/*** 訂單列表** @param beginTime* @param endTime* @param limit* @param offset* @return*/public JSONObject orders(String beginTime, String endTime, int limit, int offset) {final String path = /sell/fulfillment/v1/order;String filter = MessageFormat.format(lastmodifieddate:[{0}..{1}], beginTime, endTime);//Map<String, Object> queryMap = new HashMap<>(8);queryMap.put(filter, filter);queryMap.put(limit, limit);queryMap.put(offset, offset);return get(/sell/inventory/v1/inventory_item, queryMap);} }

庫存相關的使用EbayInventoryClient，訂單相關的使用EbayOrderClient

轉載于：https://mp.weixin.qq.com/s/FxnAJrIw7eXeDkhxK2S9zA

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