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1.先在gradle配置retrfit版本如下：
//rxjava/retrofit相关引入 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.写一个接口，配置网络请求地址参数等
public interface WalletService { /** * 获取优惠信息的接口 * @return 返回值 */ @GET("/tools/mockapi/3191/favourable")//配置的get请求 Call getFavourable();} 3.开启请求
Retrofit retrofit = new Retrofit.Builder() .baseUrl("http://www.wanandroid.com") .addConverterFactory(new Converter.Factory() { @Nullable @Override public Converter responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) { return new Converter () { @Override public String convert(ResponseBody value) throws IOException { return value.string(); } }; } }) .build(); WalletService service = retrofit.create(WalletService.class); Call favourable = service.getFavourable(); favourable.enqueue(new Callback () { @Override public void onResponse(Call call, Response response) { String message = response.body(); Log.e("打印返回的json数据",message); } @Override public void onFailure(Call call, Throwable t) { //请求失败的处理 } }); 4.看下完整的请求地址：
http://www.wanandroid.com/tools/mockapi/3191/favourable
5.这是用retorfit请求到的json数据：
{ "data": [ { "activity1": "美珍香满50减15", "activity2": "美珍香满45.5元购50元代金券", "bankType": "招行", "businessType": "生活|", "distance": "27m", "message": "美珍香(北京来福土店)", "money": "人均￥34", "payType": "银联" }, { "activity1": "粗娘人家满100减35", "activity2": "粗娘人家80元购35元代金券", "bankType": "建行", "businessType": "美食|", "distance": "35m", "message": "粗娘人家(朝阳门店)", "money": "人均￥128", "payType": "银联" }, { "activity1": "燕窝楼满200减55", "activity2": "燕窝楼135元购75元代金券", "bankType": "交行", "businessType": "美食|", "distance": "42m", "message": "燕窝楼满(朝阳门店)", "money": "人均￥98", "payType": "银联" }, { "activity1": "味多美满70减15", "activity2": "味多美满25元购5元代金券", "bankType": "工行", "businessType": "面包蛋糕|", "distance": "47m", "message": "味多美满(朝阳门店)", "money": "人均￥78", "payType": "银联" }, { "activity1": "良品铺子满50减15", "activity2": "良品铺子73元购27元代金券", "bankType": "农行", "businessType": "零食|", "distance": "52m", "message": "良品铺子(朝阳门店)", "money": "人均￥68", "payType": "银联" }, { "activity1": "酸奶网满30减11", "activity2": "酸奶网26元购7元代金券", "bankType": "邮政", "businessType": "零食|", "distance": "55m", "message": "酸奶网(朝阳门店)", "money": "人均￥39", "payType": "银联" }, { "activity1": "万龙州海鲜满79减31", "activity2": "万龙州海鲜298元购65元代金券", "bankType": "浦发", "businessType": "海鲜|", "distance": "63m", "message": "万龙州海鲜(朝阳门店)", "money": "人均￥197", "payType": "银联" }, { "activity1": "抹茶奶满25减9", "activity2": "抹茶奶66元购13元代金券", "bankType": "平安", "businessType": "生活|", "distance": "69m", "message": "抹茶奶海鲜(朝阳门店)", "money": "人均￥23", "payType": "银联" }, { "activity1": "燕窝楼满200减55", "activity2": "燕窝楼135元购75元代金券", "bankType": "交行", "businessType": "美食|", "distance": "76m", "message": "燕窝楼满(朝阳门店)", "money": "人均￥98", "payType": "银联" }, { "activity1": "味多美满70减15", "activity2": "味多美满25元购5元代金券", "bankType": "工行", "businessType": "面包蛋糕|", "distance": "79m", "message": "味多美满(朝阳门店)", "money": "人均￥78", "payType": "银联" }, { "activity1": "良品铺子满50减15", "activity2": "良品铺子73元购27元代金券", "bankType": "农行", "businessType": "零食|", "distance": "86m", "message": "良品铺子(朝阳门店)", "money": "人均￥68", "payType": "银联" }, { "activity1": "酸奶网满30减11", "activity2": "酸奶网26元购7元代金券", "bankType": "邮政", "businessType": "零食|", "distance": "96m", "message": "酸奶网(朝阳门店)", "money": "人均￥39", "payType": "银联" }, { "activity1": "万龙州海鲜满79减31", "activity2": "万龙州海鲜298元购65元代金券", "bankType": "浦发", "businessType": "海鲜|", "distance": "127m", "message": "万龙州海鲜(朝阳门店)", "money": "人均￥197", "payType": "银联" }, { "activity1": "抹茶奶满25减9", "activity2": "抹茶奶66元购13元代金券", "bankType": "平安", "businessType": "生活|", "distance": "145m", "message": "抹茶奶(朝阳门店)", "money": "人均￥23", "payType": "银联" } ], "returnMessage": "请求成功", "returnCode": "200"}
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