RxJava+Retrofit 登录并获取用户信息简单案例

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1.导入依赖

implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
implementation 'io.reactivex.rxjava2:rxjava:2.2.3'
implementation 'io.reactivex.rxjava2:rxandroid:2.1.0'

2.添加互联网权限

3.写登录实体类

public class token {

    /**
     * ret : 200
     * data : {"err_code":0,"err_msg":"","uuid":"55CBA451AEB4D5569DE3D3496C72BA0C","token":"F58D72C7485FD4586505A6F926CD1D2592FB61F3ACACEC9E9A4ADE74D033DE51"}
     * msg : 当前请求接口：App.User.Login
     */

    private int ret;
    private DataBean data;
    private String msg;

    public int getRet() {
        return ret;
    }

    public void setRet(int ret) {
        this.ret = ret;
    }

    public DataBean getData() {
        return data;
    }

    public void setData(DataBean data) {
        this.data = data;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public static class DataBean {
        /**
         * err_code : 0
         * err_msg :
         * uuid : 55CBA451AEB4D5569DE3D3496C72BA0C
         * token : F58D72C7485FD4586505A6F926CD1D2592FB61F3ACACEC9E9A4ADE74D033DE51
         */

        private int err_code;
        private String err_msg;
        private String uuid;
        private String token;

        public int getErr_code() {
            return err_code;
        }

        public void setErr_code(int err_code) {
            this.err_code = err_code;
        }

        public String getErr_msg() {
            return err_msg;
        }

        public void setErr_msg(String err_msg) {
            this.err_msg = err_msg;
        }

        public String getUuid() {
            return uuid;
        }

        public void setUuid(String uuid) {
            this.uuid = uuid;
        }

        public String getToken() {
            return token;
        }

        public void setToken(String token) {
            this.token = token;
        }
    }
}

3.写用户实体类

import com.google.gson.Gson;

public class User {


    /**
     * ret : 200
     * data : {"err_code":0,"err_msg":"","info":{"uuid":"55CBA451AEB4D5569DE3D3496C72BA0C","username":"terong","role":"user","rolename":"普通用户","register_time":"2018-10-11 10:40:35","register_ip":"47.92.213.241","ext_info":{}}}
     * msg : 当前请求接口：App.User.Profile
     */

    private int ret;
    private DataBean data;
    private String msg;



//    public User(int ret, DataBean data, String msg) {
//        this.ret = ret;
//        this.data = data;
//        this.msg = msg;
//    }
//
    public User(int ret, String msg) {
        this.ret = ret;
        this.msg = msg;
    }
//    public User(){
//
//    }

    public int getRet() {
        return ret;
    }

    public void setRet(int ret) {
        this.ret = ret;
    }

    public DataBean getData() {
        return data;
    }

    public void setData(DataBean data) {
        this.data = data;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public static class DataBean {
        /**
         * err_code : 0
         * err_msg :
         * info : {"uuid":"55CBA451AEB4D5569DE3D3496C72BA0C","username":"terong","role":"user","rolename":"普通用户","register_time":"2018-10-11 10:40:35","register_ip":"47.92.213.241","ext_info":{}}
         */

        private int err_code;
        private String err_msg;
        private InfoBean info;

        public int getErr_code() {
            return err_code;
        }

        public void setErr_code(int err_code) {
            this.err_code = err_code;
        }

        public String getErr_msg() {
            return err_msg;
        }

        public void setErr_msg(String err_msg) {
            this.err_msg = err_msg;
        }

        public InfoBean getInfo() {
            return info;
        }

        public void setInfo(InfoBean info) {
            this.info = info;
        }

        public static class InfoBean {
            /**
             * uuid : 55CBA451AEB4D5569DE3D3496C72BA0C
             * username : terong
             * role : user
             * rolename : 普通用户
             * register_time : 2018-10-11 10:40:35
             * register_ip : 47.92.213.241
             * ext_info : {}
             */

            private String uuid;
            private String username;
            private String role;
            private String rolename;
            private String register_time;
            private String register_ip;
            private ExtInfoBean ext_info;

            public String getUuid() {
                return uuid;
            }

            public void setUuid(String uuid) {
                this.uuid = uuid;
            }

            public String getUsername() {
                return username;
            }

            public void setUsername(String username) {
                this.username = username;
            }

            public String getRole() {
                return role;
            }

            public void setRole(String role) {
                this.role = role;
            }

            public String getRolename() {
                return rolename;
            }

            public void setRolename(String rolename) {
                this.rolename = rolename;
            }

            public String getRegister_time() {
                return register_time;
            }

            public void setRegister_time(String register_time) {
                this.register_time = register_time;
            }

            public String getRegister_ip() {
                return register_ip;
            }

            public void setRegister_ip(String register_ip) {
                this.register_ip = register_ip;
            }

            public ExtInfoBean getExt_info() {
                return ext_info;
            }

            public void setExt_info(ExtInfoBean ext_info) {
                this.ext_info = ext_info;
            }

            public static class ExtInfoBean {
            }
        }
    }

    @Override
    public String toString() {
        return new Gson().toJson(this);
    }
}

4.写Api接口

 

import java.util.Map;

import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.POST;
import retrofit2.http.QueryMap;

public interface Api {
    //获取用户信息
    @GET("?s=App.User.Profile")
    Call getUserInfowithMap(@QueryMap Map parms);
    //登录
    @POST("?s=App.User.Login")
    Call userLogin1(@QueryMap Map parms);
    //登录
    @POST("?s=App.User.Login")
    Call userLogin(@QueryMap Map parms);
}

5.

public class MapActivity extends AppCompatActivity {
    Button btn;
    Api api;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_map);
        btn = findViewById(R.id.btn);
        Retrofit retrofit = new Retrofit.Builder().baseUrl("http://hn2.api.okayapi.com/").addConverterFactory(GsonConverterFactory.create()).build();
        api = retrofit.create(Api.class);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               //1.登录 2.获取用户信息
                final HashMap hashMap = new HashMap();
                hashMap.put("username","terong");
                hashMap.put("app_key","6E2453CFEDD692B7D380EA68DE7B5B84");
                hashMap.put("password","c4b0f02ab9b5048f947d3c944e6ea3b7");
                io.reactivex.Observable.just(hashMap).flatMap(new Function, ObservableSource>() {
                    @Override
                    public ObservableSource apply(HashMap stringStringHashMap) throws Exception {
                        token t = api.userLogin1(hashMap).execute().body();
                        System.out.println("-------------"+t.getData().getToken());
                        return io.reactivex.Observable.just(t);
                    }
                }).flatMap(new Function>() {
                    @Override
                    public ObservableSource apply(token token) throws Exception {
                        HashMap hashMap1 = new HashMap();
                        hashMap1.put("app_key", "6E2453CFEDD692B7D380EA68DE7B5B84");
                        hashMap1.put("token", token.getData().getToken());
                        hashMap1.put("uuid", "55CBA451AEB4D5569DE3D3496C72BA0C");
                        hashMap1.put("username", "terong");
                        hashMap1.put("password", "c4b0f02ab9b5048f947d3c944e6ea3b72131");
                        User user = api.getUserInfowithMap(hashMap1).execute().body();
                        return io.reactivex.Observable.just(user);
                    }
                }).subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).subscribe(new Consumer() {
                    @Override
                    public void accept(User user) throws Exception {
                        System.out.println("---------------"+user.getData().getInfo().getRolename());
                    }
                });
            }
        });
    }
}

这就ok了 ， 没看懂的留言