最近看到很多文章說Retrofit接下來要火，自己也趕緊去看了一下，畢竟要跟著潮流走嘛是不是。網上看了很多文章，對Retrofit進行http請求都是沒問題的，不過對于進行https請求，發現很多都用不了，有的也比較復雜，看的暈頭轉向，下面是我自己整理的Retrofit的使用方法，希望對大家能有所幫助。
1.配置gradle
//注解包
compile 'com.jakewharton:butterknife:7.0.0'
//Retrofit2所需要的包//這里需要值得注意的是導入的retrofit2包的版本必須要一致，否則就會報錯compile 'com.squareup.retrofit2:retrofit:2.0.0'
//ConverterFactory的Gson依賴包
compile 'com.squareup.retrofit2:converter-gson:2.0.0'
2.先使用http進行網絡請求，這里我使用的是百度API的手機號碼歸屬地查詢的接口（點這里）
- 初始化Retrofit
private static final String BASE_URL = "http://apis.baidu.com";
private static final String API_KEY = "b90f262a4f321bb6755157bf1915b4f8";
//1.創建Retrofit對象
Retrofit retrofit = new Retrofit.Builder()
.addConverterFactory(GsonConverterFactory.create())//增加返回值為Gson的支持(以實體類返回)
.baseUrl(BASE_URL)//主機地址
.build();
- 根據返回的json數據格式使用GsonFormat一鍵生成JavaBean（這個大家應該都會，AS常用的工具），最終結果如下：
public class PhoneResult {
/**
* errNum : 0
* retMsg : success
* retData : {"phone":"15210011578","prefix":"1521001","supplier":"移動","province":"北京","city":"北京","suit":"152卡"}
*/
private int errNum;
private String retMsg;
private RetDataEntity retData;
public void setErrNum(int errNum) {
this.errNum = errNum;
}
public void setRetMsg(String retMsg) {
this.retMsg = retMsg;
}
public void setRetData(RetDataEntity retData) {
this.retData = retData;
}
public int getErrNum() {
return errNum;
}
public String getRetMsg() {
return retMsg;
}
public RetDataEntity getRetData() {
return retData;
}
public static class RetDataEntity {
/**
* phone : 15210011578
* prefix : 1521001
* supplier : 移動
* province : 北京
* city : 北京
* suit : 152卡
*/
private String phone;
private String prefix;
private String supplier;
private String province;
private String city;
private String suit;
public void setPhone(String phone) {
this.phone = phone;
}
public void setPrefix(String prefix) {
this.prefix = prefix;
}
public void setSupplier(String supplier) {
this.supplier = supplier;
}
public void setProvince(String province) {
this.province = province;
}
public void setCity(String city) {
this.city = city;
}
public void setSuit(String suit) {
this.suit = suit;
}
public String getPhone() {
return phone;
}
public String getPrefix() {
return prefix;
}
public String getSupplier() {
return supplier;
}
public String getProvince() {
return province;
}
public String getCity() {
return city;
}
public String getSuit() {
return suit;
}
}
}
- 定義請求的API
public interface PhoneService {
@GET("/apistore/mobilenumber/mobilenumber") //是方法Url
//@Query**(“phone”)來設定body的parameters.
Call<PhoneResult> getResult(@Header("apikey") String apikey, @Query("phone") String phone);
}
- 調用API
//這里采用的是Java的動態代理模式
PhoneService service = retrofit.create(PhoneService.class);
//傳入我們請求的鍵值對的值，mPhoneEt是我們輸入的手機號
Call<PhoneResult> call = service.getResult(API_KEY, mPhoneEt.getText().toString());
- 發送請求
call.enqueue(new Callback<PhoneResult>() {
@Override
public void onResponse(Call<PhoneResult> call, Response<PhoneResult> response) {
//處理結果
if (response.isSuccessful()) {
PhoneResult result = response.body();
if (result != null) {
if (result.getRetMsg() != null) {
mAddressTv.setText(result.getRetMsg());//設置顯示到texiview上
} else {
PhoneResult.RetDataEntity entity = result.getRetData();
mAddressTv.setText(entity.getProvince());
}
}
}
}
@Override
public void onFailure(Call<PhoneResult> call, Throwable t) {
}
});
-
看下結果
最終結果
3.使用https進行網絡請求
- 將證書拷貝到raw目錄下
https請求服務器需要的證書
- 都知道Retrofit的網絡請求是使用okhttp，所以我們只需要給
OkHttpClient.Builder().sslSocketFactory(sslSocketFactory)，那么SSLSocketFactory怎么得到呢，哈哈，不要急，方法已經寫好：
public class SslContextFactory {
private static final String CLIENT_TRUST_PASSWORD = "changeit";//信任證書密碼，該證書默認密碼是changeit
private static final String CLIENT_AGREEMENT = "TLS";//使用協議
private static final String CLIENT_TRUST_MANAGER = "X509";
private static final String CLIENT_TRUST_KEYSTORE = "BKS";
SSLContext sslContext = null;
public SSLContext getSslSocket() {
try {
//取得SSL的SSLContext實例
sslContext = SSLContext.getInstance(CLIENT_AGREEMENT);
//取得TrustManagerFactory的X509密鑰管理器實例
TrustManagerFactory trustManager = TrustManagerFactory.getInstance(CLIENT_TRUST_MANAGER);
//取得BKS密庫實例
KeyStore tks = KeyStore.getInstance(CLIENT_TRUST_KEYSTORE);
InputStream is = MyApplication.getInstance().getResources().openRawResource(R.raw.suplcerts);
try {
tks.load(is, CLIENT_TRUST_PASSWORD.toCharArray());
} finally {
is.close();
}
//初始化密鑰管理器
trustManager.init(tks);
//初始化SSLContext
sslContext.init(null, trustManager.getTrustManagers(), null);
} catch (Exception e) {
Log.e("SslContextFactory", e.getMessage());
}
return sslContext; }}
- 給OkHttpClient.Builder().sslSocketFactory(sslSocketFactory)
SSLSocketFactory sslSocketFactory = new SslContextFactory().getSslSocket().getSocketFactory();
OkHttpClient.Builder okHttpClient = new OkHttpClient.Builder().sslSocketFactory(sslSocketFactory);
- 創建Retrofit對象
Retrofit retrofit = new Retrofit.Builder()
.addConverterFactory(GsonConverterFactory.create())//增加返回值為Gson的支持(以實體類返回)
.baseUrl("https://skyish-test.yunext.com")//主機地址
.client(okHttpClient.build()) /注意這里要給retrofit 設置okhttpclient
.build();
- 后面的創建請求的API跟調用API跟上面的使用http請求是一樣的，可以自己找個接口試試，親測，沒有問題，這里我就不貼代碼了。
