okHttp的简单封装

 工具类：

import android.os.Handler;
import android.os.Looper;
import java.io.IOException;
import java.util.Map;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
public class OkHttpUtils {
private static OkHttpClient client;
private static OkHttpUtils okHttpUtils;
private Handler handler;
private OkHttpUtils() {
client = new OkHttpClient();
handler = new Handler(Looper.getMainLooper());
}
/*单例模式
获取类实例*/
private static OkHttpUtils getInstance() {
if (okHttpUtils == null) {
synchronized (OkHttpClient.class) {
okHttpUtils = new OkHttpUtils();
}
}
return okHttpUtils;
}
public static void doPost(String url,Map<String, String> param, String headerName, String header, final MyCallback callback){
getInstance().inner_doPost(url,param,headerName,header,callback);
}
/*内部方法 网络请求
* */
private void inner_doPost(String url, Map<String, String> param, String headerName, String header, final MyCallback callback) {
final Request request;
Request.Builder requestBuilder = new Request.Builder();
/*判断是否有请求体*/
if (param != null) {
FormBody.Builder builder = new FormBody.Builder();
for (Map.Entry<String, String> map : param.entrySet()) {
String key = map.getKey();
String value;
if (map.getValue() == null) {
value = "";
} else {
value = map.getValue();
}
builder.add(key, value);
}
RequestBody requestBody = builder.build();
requestBuilder.post(requestBody);
}
/*判断是否有头部信息
*
* 这里由于这一个项目的要求头部信息不多，我只用了很简单的一个写法
* 需要更多信息的可以使用Headers进行扩展
* */
if (header != null) {
requestBuilder.addHeader(headerName, header);
}
request = requestBuilder
.url(url)
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
deliverRequestFailure(e,callback);
}
@Override
public void onResponse(Call call, Response response) throws IOException {
deliverRequestSuccess(response,callback);
}
});
}
/*请求失败时回调*/
private void deliverRequestFailure(final IOException e, final MyCallback callback){
handler.post(new Runnable() {
@Override
public void run() {
if (callback!=null)
callback.onFailure(e);
}
});
}
/*请求成功时回调*/
private void deliverRequestSuccess(final Response response, final MyCallback callback){
handler.post(new Runnable() {
@Override
public void run() {
if (callback!=null) {
try {
callback.onResponse(response);
} catch (IOException e) {
e.printStackTrace();
}
}
}
});
}
/*
* 外部回调*/
public interface MyCallback {
void onResponse(Response response) throws IOException;
void onFailure(IOException e);
}
}

使用

Map<String,String> param=new HashMap<>();
param.put("phone",user);
param.put("password",password);
String url="http://www.xhban.com:8080/photograph_u/user/login";
OkHttpUtils.doPost(url, param, null, null, new OkHttpUtils.MyCallback() {
@Override
public void onResponse(Response response) throws IOException {
//请求成功的数据处理
}
@Override
public void onFailure(IOException e) {
Log.e(TAG, "onFailure: ",e );
}
});

最后

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