HttpUtils

package com.rs.zero.crc.common.http;

import com.rs.zero.crc.modulars.common.constants.SysConstantConf;
import com.xiaoleilu.hutool.util.ObjectUtil;
import okhttp3.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.concurrent.TimeUnit;

/**
 * HTTP 请求utils
 *
 * @author RS.LSY Created by IntelliJ IDEA.
 * @since 2017/05/02 20:11
 */
public class HttpUtils {


    private static Log log = LogFactory.getLog(HttpUtils.class);
    private static final MediaType JSON = MediaType.parse("application/mode; charset=utf-8");

    /**
     * get 请求.
     * <p>连接10s超时,写10s,读30s</p>
     *
     * @param url 请求URL
     * @return 请求结果
     * @throws IOException 异常
     */
    public static String okHttpGet(String url) throws IOException {
        log.info("okHttpPost 请求url:" + url);

        OkHttpClient client = new OkHttpClient().newBuilder()
                .connectTimeout(SysConstantConf.okHttp().getInteger("connectTimeout"), TimeUnit.SECONDS)
                .writeTimeout(SysConstantConf.okHttp().getInteger("writeTimeout"), TimeUnit.SECONDS)
                .readTimeout(SysConstantConf.okHttp().getInteger("readTimeout"), TimeUnit.SECONDS)
                .build();
        Request request = new Request.Builder().url(url).build();
        Response response = client.newCall(request).execute();
        if (response.isSuccessful()) {
            return response.body().string();
        } else {
            throw new IOException("Unexpected code " + response);
        }
    }


    /**
     * OKHttP POST 请求.
     * <p>连接10s超时,写10s,读30s</p>
     *
     * @param url  请求URL
     * @param json 请求参数
     * @return 请求结果
     * @throws IOException IO异常
     */
    public static String okHttpPost(String url, String json) throws IOException, InterruptedException {

        int maxTimes = SysConstantConf.okHttp().getInteger("maxTimes");
        int sleepTime = SysConstantConf.okHttp().getInteger("sleepTime");
        int initTimes = 0;

        Response response = ssss(url, json);

        while (!response.isSuccessful() && maxTimes >= initTimes) {
            initTimes++;
            response = ssss(url, json);
            Thread.sleep(sleepTime);
            log.info("正在进行第" + initTimes + "次重试");
            log.info("Unexpected code:" + response);
        }

        if (response.isSuccessful()) {
            return response.body().string();
        } else {
            throw new IOException("Unexpected code " + response);
        }

    }

    private static Response ssss(String url, String json) throws IOException {


        log.info("okHttpPost 请求url:" + url);
        log.info("okHttpPost 请求json:" + json);
        OkHttpClient client = new OkHttpClient().newBuilder()
                .connectTimeout(SysConstantConf.okHttp().getInteger("connectTimeout"), TimeUnit.SECONDS)
                .writeTimeout(SysConstantConf.okHttp().getInteger("writeTimeout"), TimeUnit.SECONDS)
                .readTimeout(SysConstantConf.okHttp().getInteger("readTimeout"), TimeUnit.SECONDS)
                .retryOnConnectionFailure(true)
                .build();
        RequestBody body = RequestBody.create(JSON, json);
        Request request = new Request.Builder()
                .url(url)
                .post(body)
                .build();

        return client.newCall(request).execute();

    }


    /**
     * 获取body数据.
     *
     * @param request HttpServletRequest
     * @return body数据
     * @throws IOException IOException
     */
    public static String getPostBody(HttpServletRequest request) throws IOException {

        StringBuilder sb = new StringBuilder();
        InputStream is = request.getInputStream();
        InputStreamReader isr = new InputStreamReader(is, "UTF-8");
        BufferedReader br = new BufferedReader(isr);
        String s;
        while ((s = br.readLine()) != null) {
            sb.append(s);
        }
        if (ObjectUtil.isNotNull(is)) {
            is.close();
        }
        if (ObjectUtil.isNotNull(isr)) {
            isr.close();
        }
        if (ObjectUtil.isNotNull(br)) {
            br.close();
        }
        return sb.toString();
    }

}