OKhttp的基本使用
转载链接： https://www.cnblogs.com/baiqiantao/p/a6b3d5eb5c6bf3f3bece9281ac127d86.html
使用：AndroidStudio：【compile 'com.squareup.okhttp3:okhttp:3.4.2'】和【compile 'com.zhy:okhttputils:2.6.2'】和【compile 'com.google.code.gson:gson:2.3.1'】
封装的功能
- 一般的get请求
- 一般的post请求
- 基于Http Post的文件上传（类似表单）
- 文件下载/加载图片
- 上传下载的进度回调
- 支持取消某个请求
- 支持自定义Callback
- 支持HEAD、DELETE、PATCH、PUT
- 支持session的保持
- 支持自签名网站https的访问，提供方法设置下证书就行
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
android:name="com.bqt.okhttp.MyApplication"
Application
public class MyApplication extends Application {
@Override
public void onCreate() {
super.onCreate();
//对于Https，框架中提供了一个类HttpsUtils，可设置为：可访问所有的https网站、设置具体的证书、双向认证
//同样的，框架中只是提供了几个实现类，你可以自行实现SSLSocketFactory，传入sslSocketFactory方法中即可
HttpsUtils.SSLParams sslParams = HttpsUtils.getSslSocketFactory(null, null, null);
//对于cookie，直接通过cookiejar方法配置，当然也可以自己实现CookieJar接口，编写cookie管理相关代码。
//对于持久化cookie，还可以使用https://github.com/franmontiel/PersistentCookieJar.相当于框架中只是提供了几个实现类，你可以自行定制或者选择使用
// ClearableCookieJar cookieJar = new PersistentCookieJar(new SetCookieCache(), new SharedPrefsCookiePersistor(getApplicationContext()));
// CookieJarImpl cookieJar = new CookieJarImpl(new MemoryCookieStore());
OkHttpClient okHttpClient = new OkHttpClient.Builder()//
.connectTimeout(10000L, TimeUnit.MILLISECONDS)//
.readTimeout(10000L, TimeUnit.MILLISECONDS)//
//对于Log，初始化OkhttpClient时，通过设置拦截器实现，框架中提供了一个LoggerInterceptor，当然你可以自行实现一个Interceptor
.addInterceptor(new LoggerInterceptor("TAG"))//
// .cookieJar(cookieJar)
.hostnameVerifier(new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
})//
.sslSocketFactory(sslParams.sSLSocketFactory, sslParams.trustManager)//
.build();
//默认情况下，将直接使用okhttp默认的配置生成OkhttpClient，如果有任何配置，记得在Application中调用initClient方法进行设置。
OkHttpUtils.initClient(okHttpClient);
}
}MainActivity
public class MainActivity extends ListActivity {
private User mUser;
private String user = "103468";
private String pass = "103468";
private String session_id;
private String uid;
private String mBaseUrl = "http://tapi.95xiu.com/";
private TextView mTv;
private ImageView mImageView;
private ProgressBar mProgressBar;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String[] array = { "post方式提交键值对数据", "get方式提交键值对数据", "post方式提交键值对数据文件", "post方式提交文件",//
"post方式提交Json数据", "get方式获取图片", "get方式下载文件", "清除Session", };
for (int i = 0; i < array.length; i++) {
array[i] = i + "、" + array[i];
}
mTv = new TextView(this);// 将内容显示在TextView中
mTv.setTextColor(Color.BLUE);
mTv.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16);
mTv.setPadding(20, 10, 20, 10);
mImageView = new ImageView(this);
mProgressBar = new ProgressBar(this);
mProgressBar = new ProgressBar(this, null, android.R.attr.progressBarStyleHorizontal);
mProgressBar.setMax(100);
getListView().addFooterView(mProgressBar);
getListView().addFooterView(mTv);
getListView().addFooterView(mImageView);
setListAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, new ArrayList(Arrays.asList(array))));
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
switch (position) {
case 0:
postWithParams(); //post方式提交键值对数据
break;
case 1:
getWithParams(); //get方式提交键值对数据
break;
case 2:
postParamsAndFile(); //post方式提交键值对数据，同时提交文件
break;
case 3:
postFile();//post方式提交文件---------------------用不到
break;
case 4:
postJson();//post方式提交Json数据
break;
case 5:
getImage();//get方式获取图片
break;
case 6:
downloadFile();//get方式下载文件
break;
case 7:
clearSession();//清除Session
break;
}
}
//post方式提交键值对数据
public void postWithParams() {
String url = mBaseUrl + "user/loginv2.php";
OkHttpUtils.post().url(url).addParams("user", user).addParams("pass", pass).build().execute(new StringCallback() {
@Override
public void onBefore(Request request, int id) {
mTv.setText("onBefore...\n\n");
}
@Override
public void onAfter(int id) {
mTv.append("onAfter...");
}
@Override
public void onError(Call call, Exception e, int id) {
e.printStackTrace();
mTv.append("onError:" + e.getMessage() + "\n\n");
}
@Override
public void onResponse(String response, int id) {
mTv.append(response + "\n\n");
Log.i("bqt", response);
mUser = new Gson().fromJson(response, User.class);
uid = mUser.getMsg().getId();
session_id = mUser.getMsg().getSession_id();
}
});
}
//get方式提交键值对数据
public void getWithParams() {
String url = mBaseUrl + "app/news/index.php";
OkHttpUtils.get().url(url).id(100).addParams("session_id", session_id).addParams("uid", uid).build().execute(new MyStringCallback());
}
//post方式提交键值对数据，同时提交文件
public void postParamsAndFile() {
String url = mBaseUrl + "myprofile/editinfo.php";
File file = new File(Environment.getExternalStorageDirectory(), "bqt.jpg");
if (!file.exists()) {
Toast.makeText(MainActivity.this, "文件不存在，请修改文件路径", Toast.LENGTH_SHORT).show();
return;
}
Map params = new HashMap<>();
params.put("session_id", session_id);
params.put("uid", uid);
OkHttpUtils.post().addFile("image", "文件名", file).url(url).params(params).build().execute(new MyStringCallback());//可以提交多个文件
}
//post方式提交文件---------------------用不到
public void postFile() {
String url = "http://app.fulijr.com/api/v1.3.4/a61000b6a80a";
File file = new File(Environment.getExternalStorageDirectory(), "bqt.jpg");
if (!file.exists()) {
Toast.makeText(MainActivity.this, "文件不存在，请修改文件路径", Toast.LENGTH_SHORT).show();
return;
}
OkHttpUtils.postFile().url(url).file(file).build().execute(new MyStringCallback());
}
//post方式提交Json数据
public void postJson() {
String url = mBaseUrl + "user/loginv2.php";
OkHttpUtils.postString().url(url).mediaType(MediaType.parse("application/json; charset=utf-8")).content(new Gson().toJson(mUser)).build()
.execute(new MyStringCallback());
}
//get方式获取图片
public void getImage() {
String url = "http://d.hiphotos.baidu.com/image/pic/item/e4dde71190ef76c6cc15d5839816fdfaae516756.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) {
mTv.setText("onError:" + e.getMessage());
}
@Override
public void onResponse(Bitmap bitmap, int id) {
mImageView.setImageBitmap(bitmap);
}
});
}
//get方式下载文件
public void downloadFile() {
String url = "http://d.hiphotos.baidu.com/image/pic/item/e4dde71190ef76c6cc15d5839816fdfaae516756.jpg";
String filePath = Environment.getExternalStorageDirectory().getAbsolutePath();
OkHttpUtils.get().url(url).build().execute(new FileCallBack(filePath, "包青天.jpg") {
@Override
public void onBefore(Request request, int id) {
mTv.setText("onBefore...\n\n");
}
@Override
public void onAfter(int id) {
mTv.append("onAfter...");
}
@Override
public void inProgress(float progress, long total, int id) {
mProgressBar.setProgress((int) (100 * progress));
mTv.append(progress + "\n");
}
@Override
public void onError(Call call, Exception e, int id) {
e.printStackTrace();
mTv.append("onError:" + e.getMessage() + "\n\n");
}
@Override
public void onResponse(File file, int id) {
mTv.append(file.getAbsolutePath() + "\n\n");
}
});
}
//清除Session
public void clearSession() {
CookieJar cookieJar = OkHttpUtils.getInstance().getOkHttpClient().cookieJar();
if (cookieJar instanceof CookieJarImpl) {
((CookieJarImpl) cookieJar).getCookieStore().removeAll();
}
}
//其他请求方式
public void otherRequestDemo() {
//also can use delete ,head , patch
OkHttpUtils.put().url("http://11111.com").requestBody("may be something").build()//
.execute(new MyStringCallback());
try {
OkHttpUtils.head().url("http://11111.com").addParams("name", "zhy").build().execute();
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
protected void onDestroy() {
super.onDestroy();
OkHttpUtils.getInstance().cancelTag(this);
}
public class MyStringCallback extends StringCallback {
@Override
public void onError(Call call, Exception e, int id) {
e.printStackTrace();
mTv.setText("onError:" + e.getMessage());
}
@Override
public void onResponse(String response, int id) {
mTv.setText("onResponse:" + decodeUnicodeToString(response));
}
}
/**将Unicode编码解析成字符串形式（如汉字） */
public static String decodeUnicodeToString(String uString) {
StringBuilder sb = new StringBuilder();
int i = -1, pos = 0;
while ((i = uString.indexOf("\\u", pos)) != -1) {
sb.append(uString.substring(pos, i));
if (i + 5 < uString.length()) {
pos = i + 6;
sb.append((char) Integer.parseInt(uString.substring(i + 2, i + 6), 16));
}
}
sb.append(uString.substring(pos));
return sb.toString();
}
}