post

package soexample.umeng.com.okhttp_demo_day13.utils;

import android.os.Environment;

import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.logging.HttpLoggingInterceptor;

/**
 * 静态内部类单例模式
 * OKHttp的重点
 * 1：同步和异步的区别
 * 2：get和POST怎么使用
 * 3：怎么封装
 * 扩展有拦截器，上传图片，源码区看一看
 */
public class OkUtils {
    private OkHttpClient okHttpClient;

    private OkUtils() {
        //日志拦截器
        HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
        okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(20, TimeUnit.SECONDS)
                .readTimeout(20, TimeUnit.SECONDS)
                .callTimeout(20, TimeUnit.SECONDS)
                .addInterceptor(loggingInterceptor)
                .build();
    }

    public static OkUtils getInstance() {
        return OkHolder.okUtils;
    }

    static class OkHolder {
        private static final OkUtils okUtils = new OkUtils();
    }

    //这是同步的get和post
    public String getSync(String url) throws IOException {
        Request request = new Request.Builder().url(url).build();
        return okHttpClient.newCall(request).execute().body().string();
    }

    public String postSync(String url, String key, String value) throws IOException {
        RequestBody body = new FormBody.Builder().add(key, value).build();
        Request request = new Request.Builder().url(url).post(body).build();
        return okHttpClient.newCall(request).execute().body().string();
    }

    //异步的get和post

    public void getAsync(String url, Callback callback) {
        Request request = new Request.Builder().url(url).build();
        okHttpClient.newCall(request).enqueue(callback);
    }

    public void postAsync(String url, Callback callback) {
        RequestBody body = new FormBody.Builder().add("key", "value").build();
        Request request = new Request.Builder().url(url).post(body).build();
        okHttpClient.newCall(request).enqueue(callback);
    }

    //上传图片  必须是POST
    public void upLoadImage(String url, String uid, Callback callback) {
        File file = new File(Environment.getExternalStorageDirectory() + "/Pictures/test.jpg");
        //上传图片需要 MultipartBody
        MultipartBody.Builder body = new MultipartBody.Builder().setType(MultipartBody.FORM)
                .addFormDataPart("uid", uid)
                .addFormDataPart("file", "test.jpg", RequestBody.create(MediaType.parse("image/jpg"), file));
        RequestBody body1 = body.build();
        Request request = new Request.Builder().url(url).post(body1).build();
        okHttpClient.newCall(request).enqueue(callback);


    }

}

//截取字符
private void splitUrl(String imageUrl){
		if (!imageUrl.isEmpty()) {
			// \\是转义字符
			String[] split = imageUrl.split("\\|");
			if(split!=null){
				for (int i = 0; i < split.length; i++) {
					String replace = split[i].replace("https", "http");
					System.out.println(replace);
				}
			}
			
		}
	}
post请求头
 public void asyncPost2(String mUrl, HashMap<String, String> map, Callback callback) {

        FormBody.Builder body = new FormBody.Builder();
        for (String key : map.keySet()) {

            body.add(key, map.get(key));
        }
        Request request = new Request.Builder().url(mUrl).addHeader("userId", map.get("userId")).addHeader("sessionId", map.get("sessionId")).post(body.build()).build();
        okHttpClient.newCall(request).enqueue(callback);
}


总依赖：
 implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.google.code.gson:gson:2.8.5'
    implementation 'com.squareup.okhttp3:okhttp:3.12.1'
    
    implementation 'com.xw.repo:xedittext:2.1.0@aar'
    implementation 'com.jakewharton:butterknife:8.8.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
    implementation 'com.jcodecraeer:xrecyclerview:1.5.9'
    implementation 'com.recker.flybanner:flybanner:1.3'
    implementation 'com.android.support:cardview-v7:28.0.0'
    implementation 'com.github.xiaohaibin:XBanner:1.6.1'
    implementation 'org.greenrobot:eventbus:3.1.1'
    implementation 'com.github.bumptech.glide:glide:3.5.2'
    implementation  'com.github.mcxtzhang:SwipeDelMenuLayout:V1.3.0'
implementation 'liji.library.dev:citypickerview:0.1.0'


主项目
buildscript {
    
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.0'
        

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven { url 'https://jitpack.io' }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}