2018-02-27-Android-TimeCat-当RxJava遇到Retrofit(二)api注解@Path, @Url等
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2018-02-27-Android-TimeCat-当RxJava遇到Retrofit(二)api注解@Path, @Url等

背景

下面分为GETPOSTDELETE还有PUT的请求,说明@Path@Query@QueryMap@Body@Field的用法。

初始化Retrofit

String BASE_URL = "http://192.168.88.105:8000/api/"; Retrofit retrofit = new Retrofit.Builder() .baseUrl(BASE_URL) .build();

GET

样式1(一个简单的get请求)

http://192.168.88.105:8000/api/News
@GET("News") Call<NewsBean> getItem();

样式2(URL中有参数)

http://192.168.88.105:8000/api/News/1 http://192.168.88.105:8000/api/News/{资讯id}
@GET("News/{newsId}") Call<NewsBean> getItem(@Path("newsId") String newsId);
或 http://192.168.88.105:8000/api/News/1/类型1 http://192.168.88.105:8000/api/News/{资讯id}/{类型}
@GET("News/{newsId}/{type}") Call<NewsBean> getItem(@Path("newsId") String newsId, @Path("type") String type);

样式3(参数在URL问号之后)

http://192.168.88.105:8000/api/News?newsId=1 http://192.168.88.105:8000/api/News?newsId={资讯id}
@GET("News") Call<NewsBean> getItem(@Query("newsId") String newsId);
或 http://192.168.88.105:8000/api/News?newsId=1&type=类型1 http://192.168.88.105:8000/api/News?newsId={资讯id}&type={类型}
@GET("News") Call<NewsBean> getItem(@Query("newsId") String newsId, @Query("type") String type);

样式4(多个参数在URL问号之后,且个数不确定)

http://192.168.88.105:8000/api/News?newsId=1&type=类型1… http://192.168.88.105:8000/api/News?newsId={资讯id}&type={类型}…
@GET("News") Call<NewsBean> getItem(@QueryMap Map<String, String> map);
也可以
@GET("News") Call<NewsBean> getItem( @Query("newsId") String newsId, @QueryMap Map<String, String> map );

POST

样式1(需要补全URL,post的数据只有一条reason)

http://192.168.88.105:8000/api/Comments/1 http://192.168.88.105:8000/api/Comments/{newsId}
@FormUrlEncoded @POST("Comments/{newsId}") Call<Comment> reportComment( @Path("newsId") String commentId, @Field("reason") String reason);

样式2(需要补全URL,问号后加入access_token,post的数据只有一条reason)

http://192.168.88.105:8000/api/Comments/1?access_token=1234123 http://192.168.88.105:8000/api/Comments/{newsId}?access_token={access_token}
@FormUrlEncoded @POST("Comments/{newsId}") Call<Comment> reportComment( @Path("newsId") String commentId, @Query("access_token") String access_token, @Field("reason") String reason);

样式3(需要补全URL,问号后加入access_token,post一个body(对象))

http://192.168.88.105:8000/api/Comments/1?access_token=1234123 http://192.168.88.105:8000/api/Comments/{newsId}?access_token={access_token}
@POST("Comments/{newsId}") Call<Comment> reportComment( @Path("newsId") String commentId, @Query("access_token") String access_token, @Body CommentBean bean);

DELETE

样式1(需要补全URL)

http://192.168.88.105:8000/api/Comments/1 http://192.168.88.105:8000/api/Comments/{commentId}
@DELETE("Comments/{commentId}") Call<ResponseBody> deleteNewsCommentFromAccount( @Path("commentId") String commentId);

样式2(需要补全URL,问号后加入access_token)

http://192.168.88.105:8000/api/Comments/1?access_token=1234123 http://192.168.88.105:8000/api/Comments/{commentId}?access_token={access_token}
@DELETE("Comments/{commentId}") Call<ResponseBody> deleteNewsCommentFromAccount( @Path("commentId") String commentId, @Query("access_token") String access_token);

样式3(带有body)

http://192.168.88.105:8000/api/Comments
@HTTP(method = "DELETE",path = "Comments",hasBody = true) Call<ResponseBody> deleteCommont( @Body CommentBody body );
CommentBody:需要提交的内容,与Post中的Body相同

PUT(这个请求很少用到,例子就写一个)

http://192.168.88.105:8000/api/Accounts/1 http://192.168.88.105:8000/api/Accounts/{accountId}
@PUT("Accounts/{accountId}") Call<ExtrasBean> updateExtras( @Path("accountId") String accountId, @Query("access_token") String access_token, @Body ExtrasBean bean);

总结

  • @Path:所有在网址中的参数(URL的问号前面),如: http://192.168.88.105:8000/api/Accounts/{accountId}
  • @Query:URL问号后面的参数,如: http://192.168.88.105:8000/api/Comments?access_token={access_token}
  • @QueryMap:相当于多个@Query
  • @Field:用于POST请求,提交单个数据
  • @Body:相当于多个@Field,以对象的形式提交
Tips - Tips1 使用@Field时记得添加@FormUrlEncoded - Tips2 若需要重新定义接口地址,可以使用@Url,将地址以参数的形式传入即可。如
@GET Call<List<Activity>> getActivityList( @Url String url, @QueryMap Map<String, String> map); Call<List<Activity>> call = service.getActivityList( "http://115.159.198.162:3001/api/ActivitySubjects", map);

参考

https://www.jianshu.com/p/7687365aa946 https://www.jianshu.com/p/6b3daeda1eed