Retrofit基本介绍和简单的使用方式

<span style="font-size:14px;">Gson: com.squareup.retrofit2:converter-gson</span>

<span style="font-size:14px;">Jackson: com.squareup.retrofit2:converter-jackson</span>

<span style="font-size:14px;">Moshi: com.squareup.retrofit2:converter-moshi
Protobuf: com.squareup.retrofit2:converter-protobuf
Wire: com.squareup.retrofit2:converter-wire
Simple XML: com.squareup.retrofit2:converter-simplexml
Scalars (primitives, boxed, and String): com.squareup.retrofit2:converter-scalars</span>

compile 'com.squareup.retrofit2:retrofit:2.1.0'

compile 'com.squareup.retrofit2:converter-gson:2.1.0'

一个简单使用Retrofit中的例子

<span style="font-size:14px;">public interface UserCardnoService {
    //基本信息查询
    @GET("/idcard/index")
    Call<InforBean> getInfoResult(@Query("key") String key, @Query("cardno") String cardno);
    //信息是否泄漏
    @GET("/idcard/leak")
    Call<LeakBean> getLeakResult(@Query("key") String key, @Query("cardno") String cardno);
    //身份证是否挂失
    @GET("/idcard/loss")
    Call<LossBean> getLossResult(@Query("key") String key, @Query("cardno") String cardno);
}</span>

<span style="font-size:14px;">public class InforBean {

    /**
     * resultcode : 200
     * reason : 成功的返回
     * result : {"area":"浙江省温州市平阳县","sex":"男","birthday":"1989年03月08日"}
     */
    public String resultcode;
    public String reason;
    public int error_code;
    /**
     * area : 浙江省温州市平阳县
     * sex : 男
     * birthday : 1989年03月08日
     */

    public ResultBean result;

    public static class ResultBean {
        public String area;
        public String sex;
        public String birthday;

        public String getArea() {
            return area;
        }

        public void setArea(String area) {
            this.area = area;
        }

        public String getSex() {
            return sex;
        }

        public void setSex(String sex) {
            this.sex = sex;
        }

        public String getBirthday() {
            return birthday;
        }

        public void setBirthday(String birthday) {
            this.birthday = birthday;
        }
    }

    public String getResultcode() {
        return resultcode;
    }

    public void setResultcode(String resultcode) {
        this.resultcode = resultcode;
    }

    public String getReason() {
        return reason;
    }

    public void setReason(String reason) {
        this.reason = reason;
    }

    public int getError_code() {
        return error_code;
    }

    public void setError_code(int error_code) {
        this.error_code = error_code;
    }

    public ResultBean getResult() {
        return result;
    }

    public void setResult(ResultBean result) {
        this.result = result;
    }
}</span>

<span style="font-size:14px;">public class UserInfoActivity extends AppCompatActivity implements View.OnClickListener {

    public static final String TAG = "UserInfoActivity";

    private EditText mEtInput;
    private Button btnQuery;
    private TextView mTvArea;
    private TextView mTvSex;
    private TextView mTvBirthday;
    private LinearLayout llInfo;

    private String mCardno;

    private Context mContext;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mContext = UserInfoActivity.this;
        setContentView(R.layout.base_layout);
        initView();
    }

    private void initView() {
        mEtInput = (EditText) findViewById(R.id.etInput);
        btnQuery = (Button) findViewById(R.id.btnQuery);
        mTvArea = (TextView) findViewById(R.id.tvArea);
        mTvSex = (TextView) findViewById(R.id.tvSex);
        mTvBirthday = (TextView) findViewById(R.id.tvBirthday);
        llInfo = (LinearLayout) findViewById(R.id.ll_Info);
        btnQuery.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        mCardno = mEtInput.getText().toString().trim();
        if (!mCardno.matches(RegexpUtils.USER_CARD)) {
            Toast.makeText(mContext, "输入有误，请重新输入！", Toast.LENGTH_SHORT).show();
        } else {
            getNetData();
        }
    }

    private void getNetData() {
        //构建rtrofit实例
        Retrofit retrofit = new Retrofit
                .Builder()
                .baseUrl(GlobalContact.BASEURL)
                .addConverterFactory(GsonConverterFactory.create())
                .build();

        UserCardnoService infoService = retrofit.create(UserCardnoService.class);

        Call<InforBean> call = infoService.getInfoResult(GlobalContact.KEY, mCardno);

        call.enqueue(new Callback<InforBean>() {
            @Override
            public void onResponse(Call<InforBean> call, Response<InforBean> response) {
                Log.i(TAG, "onResponse: " + response.body().toString());
                if (response.isSuccessful()) {
                    llInfo.setVisibility(View.VISIBLE);
                    //对数据进行赋值
                    mTvArea.setText(response.body().result.area);
                    mTvSex.setText(response.body().result.sex);
                    mTvBirthday.setText(response.body().result.birthday);
                } else {
                    llInfo.setVisibility(View.GONE);
                }
            }

            @Override
            public void onFailure(Call<InforBean> call, Throwable t) {
                Log.i(TAG, "onFailure: " + t.toString());
            }
        });
    }
}</span>