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。

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

OKHttpUtil使用

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

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);

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);

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);

下載文件

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

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);

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}

在 Springboot 中使用

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

配置詳見

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;} }

如何快速封裝外部接口

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<>();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，是不是很清晰

源碼位置：https://github.com/admin4j/common-http

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