//retrofit 的json解析器
compile 'com.squareup.retrofit2:converter-gson:2.3.0'
//Gson解析的依赖
compile 'com.google.code.gson:gson:2.8.1'
public interface KingApi {
//保存地址
@FormUrlEncoded
@POST("addresssave")
// Call uploadData(@Field("userid") int header, @Body MineBean bean);
Call uploadData(@Header("userid") int userid , @Field("addressArea") String addressArea,
@Field("addressDetail") String addressDetail,
@Field("city") String city,
@Field("isDefault") int isDefault,
@Field("name") String name,
@Field("phoneNumber") String phoneNumber,
@Field("province") String province,
@Field("zipCode") String zipCode);
// Call getData(@Body MineBean bean);
// Call getData(@Header("userid"));
//模拟登陆使用zengjiawei
@FormUrlEncoded
@POST("login")
Call zjwLogin(@Field("username") String username, @Field("password") String password);
//获取地址列表zengjiawei
// @FormUrlEncoded
@GET("addresslist")
Call addressList(@Header("userid") int userid);
}
public class JDMallRetrofit {
private static JDMallRetrofit sJDMallRetrofit;
private final KingApi mKingApi;
private final Gson gson = new GsonBuilder()
.setLenient()
.create();
private JDMallRetrofit() {
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(Constant.HOST)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
mKingApi = retrofit.create(KingApi.class);
}
public static JDMallRetrofit getInstance() {
if (sJDMallRetrofit == null) {
synchronized (JDMallRetrofit.class) {
if (sJDMallRetrofit == null) {
sJDMallRetrofit = new JDMallRetrofit();
}
}
}
return sJDMallRetrofit;
}
public KingApi getKingApi() {
return mKingApi;
}
}
public class Constants {
public static final String HOST = "https://www.hzjr.com/Mobile/";
}
返回的bean对象格式不对会造成请求错误
Call call = JMRetrofit.getInstance().getKingApi().addressDeleteData(Integer.valueOf(mUserid), bean.getId());
call.enqueue(new Callback() {
@Override
public void onResponse(Call call, Response response) {
}
@Override
public void onFailure(Call call, Throwable throwable) {
}
});
Retrofit各个注解的含义及作用
Cookie获取
此方法会失效，不推荐使用
retrofit回调中获得的就是cookie，要去除分号后面的无用数据，看后台接受什么
Headers headers = response.headers();
String cookie = headers.get("Set-Cookie");
SaveCookiesInterceptor（正确获取方式）
public class SaveCookiesInterceptor implements Interceptor {
private Context mContext;
public SaveCookiesInterceptor(Context context) {
mContext = context;
}
@Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request();
Response originalResponse = chain.proceed(request);
String cookie = originalResponse.header(Constance.COOKIE);
if (!originalResponse.headers(Constance.COOKIE).isEmpty()) {
// HashSet cookies = new HashSet<>();
// List headers = originalResponse.headers("Set-Cookie");
//
// for (String header : originalResponse.headers("Set-Cookie")) {
// cookies.add(header);
// }
SPUtils.putString(mContext, Constance.COOKIE, cookie);
// Preferences.getDefaultPreferences().edit()
// .putStringSet(Preferences.PREF_COOKIES, cookies)
// .apply();
}
return originalResponse;
}
}
然后在retrofit的单例中添加
测试发现okHttpClient 同时添加saveCookie和addCookie的拦截器是不奏效的，所以这里不用addCookie
private HzjrRetrofit() {
LoadDataUtil.setCookieListener(new LoadDataUtil.CookieListener() {
@Override
public void cookieChange() {
cookie=preferencesUtil.getString(Constants.mContext,SharedPreferencesUtil.SET_COOKIE,"");
}
});
SaveCookiesInterceptor.setCookieListener(new SaveCookiesInterceptor.CookieListener() {
@Override
public void cookieChange() {
cookie=preferencesUtil.getString(Constants.mContext,SharedPreferencesUtil.SET_COOKIE,"");
}
});
CookieJarImpl cookieJar = new CookieJarImpl(new PersistentCookieStore(Constants.mContext));
OkHttpClient okHttpClient = new OkHttpClient.Builder()
// .addInterceptor(new SaveCookiesInterceptor(Constants.mContext))
.addInterceptor(new AddCookiesInterceptor(SharedPreferencesUtil.getInstance().getString(Constants.mContext,
SharedPreferencesUtil.SET_COOKIE,"")))
.cookieJar(cookieJar)
//其他配置
.build();
/*OkHttpClient client = new OkHttpClient.Builder().build();
client.interceptors().add(new SaveCookiesInterceptor(Constants.mContext));（最优方案）
client.interceptors().add(new AddCookiesInterceptor(SharedPreferencesUtil.getInstance().getString(Constants.mContext,"COOKIE","")));*/
Retrofit retrofit = new Retrofit.Builder()
// .client(okHttpClient)
.client(genericClient())
// .client(client)
.baseUrl(Constants.HOST)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
mHzjrApi = retrofit.create(HzjrApi.class);
}
public static OkHttpClient genericClient() {
LogUtil.showLog("www=genericClient","i am here");
OkHttpClient httpClient = new OkHttpClient.Builder()
.addInterceptor(new Interceptor() {
@Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request()
.newBuilder()
// .addHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8")
.addHeader("Content-Type", "application/json; charset=UTF-8")
注释下行 否则请求网络返回数据乱码
.addHeader("Accept-Encoding", "gzip, deflate")
.addHeader("Connection", "keep-alive")
.addHeader("Accept", "*/*")
.addHeader("Cookie", cookie)
.build();
return chain.proceed(request);
}
})
.build();
return httpClient;
}
AddCookiesInterceptor
public class AddCookiesInterceptor implements Interceptor {
private String mCookie;
public AddCookiesInterceptor(String cookie) {
mCookie = cookie;
}
@Override
public Response intercept(Chain chain) throws IOException {
//Request.Builder builder = chain.request().newBuilder();
// HashSet preferences = (HashSet) Preferences.getDefaultPreferences().getStringSet(Preferences.PREF_COOKIES, new HashSet<>());
// for (String cookie : preferences) {
// builder.addHeader("Cookie", cookie);
// Log.v("OkHttp", "Adding Header: " + cookie); // This is done so I know which headers are being added; this interceptor is used after the normal logging of OkHttp
// }
Request request = chain.request();
Response originalResponse = chain.proceed(request);
CacheControl.Builder builder = new CacheControl.Builder().maxAge(10, TimeUnit.MINUTES);
return originalResponse.newBuilder()
.header("Cache-Control", builder.build().toString())
.addHeader("cookie", mCookie)
.build();
}
}
retrofit 2.2.0 上传头像
@Multipart
@POST("Member/cropImg")//上传图片
Call uploadImg(@Part("token") RequestBody token,
@Part("timestamp") RequestBody timestamp,
@Part MultipartBody.Part file);
final File file = new File(Environment.getExternalStorageDirectory(),IMAGE_FILE_NAME);
RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
MultipartBody.Part body =
MultipartBody.Part.createFormData("avatarImg", file.getName(), requestBody);
RequestBody token =
RequestBody.create(
MediaType.parse("multipart/form-data"), timestampAndToken.get(1));
RequestBody time =
RequestBody.create(
MediaType.parse("multipart/form-data"), timestampAndToken.get(0));
Call uploadImg = HzjrRetrofit.getInstance().getHzjrApi().uploadImg(token, time, body);
请求复用
首先要明确一点：每个Call实例可以且只能执行一次请求，不能使用相同的对象再次执行execute()或enqueue()。
但是，很多时候我们都需要再次执行请求，例如初次请求超时失败，这时候就要刷新再次请求。如果我们需要再次执行请求，可以使用call.clone()方法来创建call的一个副本，这个副本与call包含相同的配置，我们可以使用这个副本来再次执行相同的请求。代码示例如下：
WeiboService weiboService = ServiceGenerator.createService(WeiboService.class);
Call call = weiboService.timelineForPublic(COUNT_PER_REQ, page);
call.enqueue(callback);
Call newCall = call.clone();
newCall.enqueue(callback)；
取消请求
很多时候，当用户离开了当前页面，该页面中尚未完成的请求就没有必要了，这时候我们就需要取消请求了。在Retrofit中实现非常简单，使用call.cancel()来取消请求。
取消很简单，但是我们也应该处理取消之后的后续操作。当一个请求取消时，回调方法onFailure()会执行，而onFailure()方法在没有网络或网络错误的时候也会执行。这两种情况下我们的处理是不一样的，如果没有网络，我们会告诉用户连接网络，而取消请求则有可能只取消进度条。因此，需要对这两种情况进行区分，代码如下：
@Override
public void onFailure(Call call, Throwable t) {
if (call.isCanceled()) {
DebugLog.i(TAG, "request is canceled");
} else {
DebugLog.i(TAG, "error:" + t.getMessage());
}
}
通过call.isCanceled()方法来判断是否请求取消，从而对不同的情况分别处理。