代碼

我們以Request類為例，以下是部分代碼：

public final class Request {
  private final HttpUrl url;
  private final String method;
  private final Headers headers;
  private final RequestBody body;
  private final Object tag;

  private volatile CacheControl cacheControl; // Lazily initialized.

  private Request(Builder builder) {
    this.url = builder.url;
    this.method = builder.method;
    this.headers = builder.headers.build();
    this.body = builder.body;
    this.tag = builder.tag != null ? builder.tag : this;
  }

  public static class Builder {
    private HttpUrl url;
    private String method;
    private Headers.Builder headers;
    private RequestBody body;
    private Object tag;

    public Builder() {
      this.method = "GET";
      this.headers = new Headers.Builder();
    }

    public Builder url(String url) {
      if (url == null) throw new NullPointerException("url == null");

      // Silently replace websocket URLs with HTTP URLs.
      if (url.regionMatches(true, 0, "ws:", 0, 3)) {
        url = "http:" + url.substring(3);
      } else if (url.regionMatches(true, 0, "wss:", 0, 4)) {
        url = "https:" + url.substring(4);
      }

      HttpUrl parsed = HttpUrl.parse(url);
      if (parsed == null) throw new IllegalArgumentException("unexpected url: " + url);
      return url(parsed);
    }

    public Builder get() {
      return method("GET", null);
    }

    public Builder method(String method, RequestBody body) {
      if (method == null) throw new NullPointerException("method == null");
      if (method.length() == 0) throw new IllegalArgumentException("method.length() == 0");
      if (body != null && !HttpMethod.permitsRequestBody(method)) {
        throw new IllegalArgumentException("method " + method + " must not have a request body.");
      }
      if (body == null && HttpMethod.requiresRequestBody(method)) {
        throw new IllegalArgumentException("method " + method + " must have a request body.");
      }
      this.method = method;
      this.body = body;
      return this;
    }

    public Request build() {
      if (url == null) throw new IllegalStateException("url == null");
      return new Request(this);
    }
  }
}

source:https://github.com/square/okhttp/blob/parent-3.3.1/okhttp/src/main/java/okhttp3/Request.java

成都創(chuàng)新互聯(lián)網(wǎng)站建設(shè)提供從項目策劃、軟件開發(fā)，軟件安全維護(hù)、網(wǎng)站優(yōu)化(SEO)、網(wǎng)站分析、效果評估等整套的建站服務(wù)，主營業(yè)務(wù)為成都做網(wǎng)站、成都網(wǎng)站建設(shè)，重慶App定制開發(fā)以傳統(tǒng)方式定制建設(shè)網(wǎng)站，并提供域名空間備案等一條龍服務(wù)，秉承以專業(yè)、用心的態(tài)度為用戶提供真誠的服務(wù)。成都創(chuàng)新互聯(lián)深信只要達(dá)到每一位用戶的要求，就會得到認(rèn)可，從而選擇與我們長期合作。這樣，我們也可以走得更遠(yuǎn)！

說明

Request類兩個明顯特點：

1. 構(gòu)造函數(shù)是私有的，只能通過類的內(nèi)部調(diào)用，我們看到是Build方法調(diào)用
2. 有個靜態(tài)的內(nèi)部類Builder，構(gòu)建Request實例只能通過Builder

使用

Request request = new Request.Builder()
                .get()
                .url("https:www.baidu.com")
                .build();

新聞名稱：okhttp中的Builder模式-創(chuàng)新互聯(lián)
當(dāng)前URL：http://www.chinadenli.net/article22/gsijc.html

成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供品牌網(wǎng)站建設(shè)、響應(yīng)式網(wǎng)站、全網(wǎng)營銷推廣、網(wǎng)站排名、微信公眾號、網(wǎng)站策劃

廣告

聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請盡快告知，我們將會在第一時間刪除。文章觀點不代表本網(wǎng)站立場，如需處理請聯(lián)系客服。電話：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時需注明來源： 創(chuàng)新互聯(lián)