Android網路請求開源框架retrofit的基本GET用法(2.4版本)
阿新 • • 發佈：2019-02-03
1.先在gradle配置retrfit版本如下：
//rxjava/retrofit相關引入 compile 'io.reactivex.rxjava2:rxandroid:2.0.2' compile 'io.reactivex.rxjava2:rxjava:2.1.12' compile 'com.squareup.retrofit2:retrofit:2.4.0' compile 'com.squareup.retrofit2:adapter-rxjava2:2.3.0' compile 'com.squareup.okhttp3:logging-interceptor:3.8.0'
2.寫一個介面，配置網路請求地址引數等
public interface WalletService {
/**
* 獲取優惠資訊的介面
* @return 返回值
*/
@GET("/tools/mockapi/3191/favourable")//配置的get請求
Call<String> getFavourable();
}3.開啟請求
Retrofit retrofit = new Retrofit.Builder() .baseUrl("http://www.wanandroid.com") .addConverterFactory(new Converter.Factory() { @Nullable @Override public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) { return new Converter<ResponseBody, String>() { @Override public String convert(ResponseBody value) throws IOException { return value.string(); } }; } }) .build(); WalletService service = retrofit.create(WalletService.class); Call<String> favourable = service.getFavourable(); favourable.enqueue(new Callback<String>() { @Override public void onResponse(Call<String> call, Response<String> response) { String message = response.body(); Log.e("列印返回的json資料",message); } @Override public void onFailure(Call<String> call, Throwable t) { //請求失敗的處理 } });
4.看下完整的請求地址：
http://www.wanandroid.com/tools/mockapi/3191/favourable5.這是用retorfit請求到的json資料：
{ "data": [ { "activity1": "美珍香滿50減15", "activity2": "美珍香滿45.5元購50元代金券", "bankType": "招行", "businessType": "生活|", "distance": "27m", "message": "美珍香(北京來福土店)", "money": "人均￥34", "payType": "銀聯" }, { "activity1": "粗娘人家滿100減35", "activity2": "粗娘人家80元購35元代金券", "bankType": "建行", "businessType": "美食|", "distance": "35m", "message": "粗娘人家(朝陽門店)", "money": "人均￥128", "payType": "銀聯" }, { "activity1": "燕窩樓滿200減55", "activity2": "燕窩樓135元購75元代金券", "bankType": "交行", "businessType": "美食|", "distance": "42m", "message": "燕窩樓滿(朝陽門店)", "money": "人均￥98", "payType": "銀聯" }, { "activity1": "味多美滿70減15", "activity2": "味多美滿25元購5元代金券", "bankType": "工行", "businessType": "麵包蛋糕|", "distance": "47m", "message": "味多美滿(朝陽門店)", "money": "人均￥78", "payType": "銀聯" }, { "activity1": "良品鋪子滿50減15", "activity2": "良品鋪子73元購27元代金券", "bankType": "農行", "businessType": "零食|", "distance": "52m", "message": "良品鋪子(朝陽門店)", "money": "人均￥68", "payType": "銀聯" }, { "activity1": "酸奶網滿30減11", "activity2": "酸奶網26元購7元代金券", "bankType": "郵政", "businessType": "零食|", "distance": "55m", "message": "酸奶網(朝陽門店)", "money": "人均￥39", "payType": "銀聯" }, { "activity1": "萬龍州海鮮滿79減31", "activity2": "萬龍州海鮮298元購65元代金券", "bankType": "浦發", "businessType": "海鮮|", "distance": "63m", "message": "萬龍州海鮮(朝陽門店)", "money": "人均￥197", "payType": "銀聯" }, { "activity1": "抹茶奶滿25減9", "activity2": "抹茶奶66元購13元代金券", "bankType": "平安", "businessType": "生活|", "distance": "69m", "message": "抹茶奶海鮮(朝陽門店)", "money": "人均￥23", "payType": "銀聯" }, { "activity1": "燕窩樓滿200減55", "activity2": "燕窩樓135元購75元代金券", "bankType": "交行", "businessType": "美食|", "distance": "76m", "message": "燕窩樓滿(朝陽門店)", "money": "人均￥98", "payType": "銀聯" }, { "activity1": "味多美滿70減15", "activity2": "味多美滿25元購5元代金券", "bankType": "工行", "businessType": "麵包蛋糕|", "distance": "79m", "message": "味多美滿(朝陽門店)", "money": "人均￥78", "payType": "銀聯" }, { "activity1": "良品鋪子滿50減15", "activity2": "良品鋪子73元購27元代金券", "bankType": "農行", "businessType": "零食|", "distance": "86m", "message": "良品鋪子(朝陽門店)", "money": "人均￥68", "payType": "銀聯" }, { "activity1": "酸奶網滿30減11", "activity2": "酸奶網26元購7元代金券", "bankType": "郵政", "businessType": "零食|", "distance": "96m", "message": "酸奶網(朝陽門店)", "money": "人均￥39", "payType": "銀聯" }, { "activity1": "萬龍州海鮮滿79減31", "activity2": "萬龍州海鮮298元購65元代金券", "bankType": "浦發", "businessType": "海鮮|", "distance": "127m", "message": "萬龍州海鮮(朝陽門店)", "money": "人均￥197", "payType": "銀聯" }, { "activity1": "抹茶奶滿25減9", "activity2": "抹茶奶66元購13元代金券", "bankType": "平安", "businessType": "生活|", "distance": "145m", "message": "抹茶奶(朝陽門店)", "money": "人均￥23", "payType": "銀聯" } ], "returnMessage": "請求成功", "returnCode": "200" }