OKHttp基本使用

一.原生OKHttp的Get和Post请求

特点：1.回调仍然不在UI线程

[b]

1 public class MyStringCallback extends StringCallback {
2     @Override
3     public void onBefore(Request request, int id) {
4         setTitle("loading...");
5     }
6
7     @Override
8     public void onAfter(int id) {
9         setTitle("Sample-okHttp");
10     }
11
12     @Override
13     public void onError(Call call, Exception e, int id) {
14         e.printStackTrace();
15         tv_result.setText("onError:" + e.getMessage());
16     }
17
18     @Override
19     public void onResponse(String response, int id) {
20         Log.e(TAG, "onResponse：complete");
21         tv_result.setText("onResponse:" + response);
22
23         switch (id) {
24             case 100:
25                 Toast.makeText(OKHttpActivity.this, "http", Toast.LENGTH_SHORT).show();
26                 break;
27             case 101:
28                 Toast.makeText(OKHttpActivity.this, "https", Toast.LENGTH_SHORT).show();
29                 break;
30         }
31     }
32
33     @Override
34     public void inProgress(float progress, long total, int id) {
35         Log.e(TAG, "inProgress:" + progress);
36         mProgressBar.setProgress((int) (100 * progress));
37     }
38 }

MyStringCallback.java

2.使用okhttp-utils的post请求网络文本数据

url = "http://api.m.mtime.cn/PageSubArea/TrailerList.api";
OkHttpUtils
.post()
.url(url)
.id(100)
.build()
.execute(new MyStringCallback());

　　

3.使用okhttp-utils文件下载

String url = "http://vfx.mtime.cn/Video/2016/07/24/mp4/160724055620533327_480.mp4";
OkHttpUtils//
.get()//
.url(url)//
.build()//
.execute(new FileCallBack(Environment.getExternalStorageDirectory().getAbsolutePath(), "okhttp-utils-test.mp4")//
{

@Override
public void onBefore(Request request, int id)
{
}

@Override
public void inProgress(float progress, long total, int id)
{
mProgressBar.setProgress((int) (100 * progress));
Log.e(TAG, "inProgress :" + (int) (100 * progress));
}

@Override
public void onError(Call call, Exception e, int id)
{
Log.e(TAG, "onError :" + e.getMessage());
}

@Override
public void onResponse(File file, int id)
{
Log.e(TAG, "onResponse :" + file.getAbsolutePath());
}
});

　　

4.使用okhttp-utils上传多个或者单个文件

String mBaseUrl = "http://192.168.0.165:8080/FileUpload/FileUploadServlet";
File file = new File(Environment.getExternalStorageDirectory(), "afu.png");
File file2 = new File(Environment.getExternalStorageDirectory(), "test.txt");
if (!file.exists()||!file2.exists())
{
Toast.makeText(OKHttpActivity.this, "文件不存在，请修改文件路径", Toast.LENGTH_SHORT).show();
return;
}
Map<String, String> params = new HashMap<>();
params.put("username", "ganchuanpu");
params.put("password", "123");

String url = mBaseUrl ;
OkHttpUtils.post()//
.addFile("mFile", "server_ww.png", file)//
.addFile("mFile", "server_test.txt", file2)//
.url(url)
.params(params)//
.build()//
.execute(new MyStringCallback());

　　

5.使用okhttp-utils请求图片---不是它的强项glide较好

String url = "http://images.csdn.net/20150817/1.jpg";
OkHttpUtils
.get()//
.url(url)//
.tag(this)//
.build()//
.connTimeOut(20000)
.readTimeOut(20000)
.writeTimeOut(20000)
.execute(new BitmapCallback() {
@Override
public void onError(Call call, Exception e, int id) {
tv_result.setText("onError:" + e.getMessage());
}

@Override
public void onResponse(Bitmap bitmap, int id) {
Log.e("TAG", "onResponse：complete");
iv_icon.setImageBitmap(bitmap);
}
});