OkHttp的使用

最近使用了第三方包OkHttp来进行网络请求，感觉挺好用，响应速度也很快。

jar包（点击下载）

github源码（点击下载）

官网介绍（点击下载）

而我用Android Studio，可以直接在gradle里面加上依赖：

compile 'com.squareup.okhttp:okhttp:2.4.0'
compile 'com.squareup.okio:okio:1.5.0'

对了，jar包是有两个，添加的话要两个都要添加才行。

基本使用

1.同步get请求：

final String Url = "http://vip.stock.finance.sina.com.cn/quotes_service/view/vMS_tradehistory.php?symbol=sh601988&date=2016-07-26&page=41";
OkHttpClient mOkHttpClient = new OkHttpClient();
Request request = new Request.Builder()
.url(Url)
.build();
try {
Response response = mOkHttpClient.newCall(request).execute();
if (response.isSuccessful()) {
String data = new String(response.body().bytes(),"GBK");
//请求成功以后的操作
} else {
}
} catch (IOException e) {
e.printStackTrace();
}

Response对象里面就是请求返回的数据了。

2.同步post请求：

final S<pre name="code" class="java">final String Url1 = "http://vip.stock.finance.sina.com.cn/quotes_service/view/vMS_tradehistory.php";
RequestBody body = new FormEncodingBuilder()
.add("symbol","sh601988")
.add("date","2016-07-26")
.add("page","41")
.build();

OkHttpClient mOkHttpClient = new OkHttpClient();
Request request = new Request.Builder()
.url(Url1)
.post(body)
.build();
Call call = mOkHttpClient.newCall(request);
call.enqueue(new Callback()
{
@Override
public void onFailure(Request request, IOException e)
{
//失败的回调
}

@Override
public void onResponse(final Response response) throws IOException
{
String data = new String(response.body().bytes(),"GBK");
//成功的回调
}
});

当然了，这是参数为键值对的post请求，new一个RequestBody的对象，把参数封装起来。

3.异步get请求：

String url = "http://vip.stock.finance.sina.com.cn/quotes_service/view/vMS_tradehistory.php?symbol=sh601988&date=2016-07-26&page=41";
//创建okHttpClient对象
OkHttpClient mOkHttpClient = new OkHttpClient();
//创建一个Request
final Request request = new Request.Builder()
.url(url)
.build();
//new call
Call call = mOkHttpClient.newCall(request);
//请求加入调度
call.enqueue(new Callback()
{
@Override
public void onFailure(Request request, IOException e)
{
//失败的回调
}

@Override
public void onResponse(final Response response) throws IOException
{
String data = new String(response.body().bytes(),"GBK");
//成功的回调
}
});

这里要加入请求队列，还要实现回调方法。

4.异步post请求

final String Url1 = "http://vip.stock.finance.sina.com.cn/quotes_service/view/vMS_tradehistory.php";
RequestBody body = new FormEncodingBuilder()
.add("symbol","sh601988")
.add("date","2016-07-26")
.add("page","41")
.build();

OkHttpClient mOkHttpClient = new OkHttpClient();
Request request = new Request.Builder()
.url(Url1)
.post(body)
.build();
Call call = mOkHttpClient.newCall(request);
call.enqueue(new Callback()
{
@Override
public void onFailure(Request request, IOException e)
{
//失败的回调
}

@Override
public void onResponse(final Response response) throws IOException
{
String data = new String(response.body().bytes(),"GBK");
//成功的回调
}
});

post方法类似这么做。

最后，这里只是说一下简单的用法，详情以官网为准。