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Http工具包，封装 OkHttp，链式用法、支持异步同步、响应JSON自动解析，回调线程切换、配置灵活、支持URL占位符、支持BaseUrl、外部依赖少、适用 JavaWeb 和 Android，教程全面、简单易用

There is a newer version: 2.3.0

package com.ejlchina.http.internal;

import java.io.IOException;

import com.ejlchina.http.HttpResult;
import com.ejlchina.http.HttpResult.State;
import com.ejlchina.http.HttpTask;

import okhttp3.Call;
import okhttp3.Response;


/**
 * 同步 Http 请求任务
 *  
 * @author Troy.Zhou
 * 
 */
public class SyncHttpTask extends HttpTask {

	public SyncHttpTask(HttpClient client, String urlPath) {
		super(client, urlPath);
	}
	
    /**
     * 发起 GET 请求
     * @return 请求结果  
     */
    public HttpResult get() {
        return request("GET");
    }

    /**
     * 发起 POST 请求
     * @return 请求结果  
     */
    public HttpResult post() {
        return request("POST");
    }

    /**
     * 发起 PUT 请求
     * @return 请求结果  
     */
    public HttpResult put() {
        return request("PUT");
    }
    
    /**
     * 发起 DELETE 请求
     * @return 请求结果  
     */
    public HttpResult delete() {
        return request("DELETE");
    }
    
    private HttpResult request(String method) {
    	RealHttpResult result = new RealHttpResult();
    	httpClient.preprocess(this, () -> {
        	Call call = prepareCall(method);
            try {
                Response response = call.execute();
                synchronized (SyncHttpTask.this) {
                	result.response(response);
                	SyncHttpTask.this.notify();
                }
            } catch (IOException e) {
            	State state = toState(e);
            	synchronized (SyncHttpTask.this) {
					result.exception(state, e);
					SyncHttpTask.this.notify();
                }
            }
    	});
    	synchronized (this) {
    		if (result.getState() == null) {
        		try {
        			SyncHttpTask.this.wait();
    			} catch (InterruptedException e) {
    				throw new HttpException("等待异常", e);
    			}
        	}
    	}
    	Exception e = result.getError();
    	if (e != null && result.getState() != State.CANCELED 
    			&& !nothrow) {
    		throw new HttpException("请求执行异常", e);
    	}
        return result;
    }

}