Retrofit网络请求参数注解,@Path、@Query、@QueryMap...

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初始化Retrofit
String BASE_URL = "http://102.10.10.132/api/";Retrofit retrofit = new Retrofit.Builder()         .baseUrl(BASE_URL)        .build();

样式1(一个简单的get请求)

http://102.10.10.132/api/News


    @GET("News")    Call<NewsBean> getItem();

样式2(URL中有参数)

http://102.10.10.132/api/News/1http://102.10.10.132/api/News/{资讯id}

    @GET("News/{newsId}")    Call<NewsBean> getItem(@Path("newsId") String newsId);


http://102.10.10.132/api/News/1/类型1
http://102.10.10.132/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://102.10.10.132/api/News?newsId=1
http://102.10.10.132/api/News?newsId={资讯id}

    @GET("News")    Call<NewsBean> getItem(@Query("newsId") String newsId);


http://102.10.10.132/api/News?newsId=1&type=类型1
http://102.10.10.132/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://102.10.10.132/api/News?newsId=1&type=类型1...
http://102.10.10.132/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://102.10.10.132/api/Comments/1
http://102.10.10.132/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://102.10.10.132/api/Comments/1?access_token=1234123
http://102.10.10.132/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://102.10.10.132/api/Comments/1?access_token=1234123
http://102.10.10.132/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://102.10.10.132/api/Comments/1
http://102.10.10.132/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://102.10.10.132/api/Comments/1?access_token=1234123
http://102.10.10.132/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://102.10.10.132/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://102.10.10.132/api/Accounts/1
http://102.10.10.132/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://102.10.10.132/api/Accounts/{accountId}
@Query:URL问号后面的参数,如:
http://102.10.10.132/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);

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