http协议接口调用工具

import com.google.gson.Gson;
import okhttp3.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
 * Created by dawn
 */
public class HttpHelper {
    private static Logger logger = LoggerFactory.getLogger(AnalysisHttpHelper.class);


    public static String httpGet(String url, Map params) throws Exception {
        try {
            OkHttpClient client = new OkHttpClient();
            List ps = new ArrayList<>();
            for (Map.Entry entry : params.entrySet()) {
                ps.add(String.format("%s=%s", entry.getKey(), entry.getValue()));
            }
            Request req = new Request.Builder()
                    .url(url +"?"+ String.join("&", ps))
                    .get()
                    .build();
            Response rep = client.newCall(req).execute();
            if (rep.isSuccessful()) {
                ResponseBody repBody = rep.body();
                if (repBody == null) {
                    return "";
                } else {
                    return repBody.string();
                }
            }
            throw new Exception(String.valueOf(rep.code()));
        } catch (Exception e) {
            logger.error(String.format("httpGet Error url(%s)params(%s)", url, new Gson().toJson(params)), e);
            throw e;
        }
    }

    public static String httpPost(String url, Map params) throws Exception {
        try {
            OkHttpClient client = new OkHttpClient();
            FormBody.Builder builder = new FormBody.Builder();
            for (Map.Entry entry : params.entrySet()) {
                builder.add(entry.getKey(), entry.getValue());
            }
            RequestBody body = builder.build();
            Request req = new Request.Builder()
                    .url(url)
                    .post(body)
                    .build();
            Response rep = client.newCall(req).execute();
            if (rep.isSuccessful()) {
                ResponseBody repBody = rep.body();
                if (repBody == null) {
                    return "";
                } else {
                    return repBody.string();
                }
            }
            throw new Exception(String.valueOf(rep.code()));
        } catch (Exception e) {
            logger.error(String.format("httpPost Error url(%s)params(%s)", url, new Gson().toJson(params)), e);
            throw e;
        }
    }
}