Android项目记录

当前封装了普通的post请求，get请求，上传图片，上传头像，以及Header包含token同时携带body数据，这里凡是含有项目封装的都是转成JSON数据之后传到服务器的。如果只是一般的请求我们只是用的普通的post请求，get请求就可以。

Effect :

Log打印的返回数据:

预备工作

权限加入：

    <uses-permission android:name="android.permission.INTERNET" />

build :

    compile 'com.squareup.okhttp3:okhttp:3.2.0'    compile 'com.squareup.okio:okio:1.6.0'    compile 'com.alibaba:fastjson:1.2.31'    compile 'com.alibaba:fastjson:1.1.57.android'

创建接口：

package com.bakheet.effect.okhttpframe;import java.io.IOException;/** * Created by YongLiu on 2017/10/26. */public interface OnResultListener<T> {    void onSuccess(String response) throws IOException;    void onFailure(Throwable t);}

FastJsonTools(用于解析服务器返回数据的工具类)：

package com.bakheet.effect.okhttpframe;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.TypeReference;import java.util.ArrayList;import java.util.List;import java.util.Map;/** * Created by YongLiu on 2017/9/13. */public class FastJsonTools {    /**     * 用fastjson 将json字符串解析为一个 JavaBean     *     * @param jsonString     * @param cls     * @return     */    public static <T> T getBean(String jsonString, Class<T> cls) {        T t = null;        try {            t = JSON.parseObject(jsonString, cls);        } catch (Exception e) {            // TODO: handle exception            e.printStackTrace();        }        return t;    }    /**     * 用fastjson 将json字符串 解析成为一个 List<JavaBean> 及 List<String>     *     * @param jsonString     * @param cls     * @return     */    public static <T> List<T> getBeans(String jsonString, Class<T> cls) {        List<T> list = new ArrayList<T>();        try {            list = JSON.parseArray(jsonString, cls);        } catch (Exception e) {            // TODO: handle exception        }        return list;    }    /**     * 用fastjson 将jsonString 解析成 List<Map<String,Object>>     *     * @param jsonString     * @return     */    public static List<Map<String, Object>> getListMap(String jsonString) {        List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();        try {            // 两种写法            // list = JSON.parseObject(jsonString, new            // TypeReference<List<Map<String, Object>>>(){}.getType());            list = JSON.parseObject(jsonString,                    new TypeReference<List<Map<String, Object>>>() {                    });        } catch (Exception e) {            // TODO: handle exception        }        return list;    }}

BaseModel(返回的一个基类Model层*) :

package com.bakheet.effect.okhttpframe;public class BaseModel<T> {    private String result;    private String desc;    private String error;    private String exception;    private String message;    private String path;    private int status;    private String timestamp;    private T data;    public String getResult() {        return result;    }    public String getDesc() {        return desc;    }    public String getError() {        return error;    }    public String getException() {        return exception;    }    public String getMessage() {        return message;    }    public String getPath() {        return path;    }    public int getStatus() {        return status;    }    public String getTimestamp() {        return timestamp;    }    public void setResult(String result) {        this.result = result;    }    public void setDesc(String desc) {        this.desc = desc;    }    public void setError(String error) {        this.error = error;    }    public void setException(String exception) {        this.exception = exception;    }    public void setMessage(String message) {        this.message = message;    }    public void setPath(String path) {        this.path = path;    }    public void setStatus(int status) {        this.status = status;    }    public void setTimestamp(String timestamp) {        this.timestamp = timestamp;    }    public T getData() {        return data;    }    public void setData(T data) {        this.data = data;    }}

调用工作

MainActivity :

package com.bakheet.effect.okhttpframe;import android.os.Handler;import android.os.Message;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.TextView;import com.alibaba.fastjson.JSON;import java.io.IOException;import java.util.HashMap;import okhttp3.Response;/** * @author YongLiu */public class MainActivity extends AppCompatActivity {    private TextView mContent;    private TextView mBtn;    Handler handler = new Handler() {        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            String response = (String) msg.obj;            mContent.setText(response);        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mBtn = (TextView) findViewById(R.id.btn);        mContent = (TextView) findViewById(R.id.tv_content);        mBtn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                setData("1", handler);            }        });    }    void setData(String tag, final Handler handler) {        HashMap map = new HashMap<>();        map.put("tag", tag);        String jsonParams = JSON.toJSONString(map);        //这个接口是我当前项目用到的一个post请求接口，需要头部带token，然后其余在body中        HttpUtils.doHeadPost("http://api.phc-dow.com/user/comment/page" + "?pageNum=" + 1 + "&" + "pageSize=" + 5, jsonParams, new OnResultListener() {            @Override            public void onSuccess(String response) throws IOException {                Log.e("tag ", "Main =" + response);                Message message = new Message();                message.obj = response;                handler.sendMessage(message);            }            @Override            public void onFailure(Throwable t) {                Log.e("tag ", "Main 失败回调");            }        });    }}

MainActivity Xml :

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.bakheet.effect.okhttpframe.MainActivity">    <TextView        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="1"        android:padding="5dp"        android:id="@+id/tv_content"        />    <View        android:layout_width="match_parent"        android:layout_height="2dp"        android:background="#f63"        />    <TextView        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="点击"        android:padding="8dp"        android:gravity="center"        android:id="@+id/btn"         /></LinearLayout>

关键工作

HttpUtils :

package com.bakheet.effect.okhttpframe;import android.content.Context;import android.text.TextUtils;import android.util.Log;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.FileNameMap;import java.net.URLConnection;import java.util.ArrayList;import java.util.List;import java.util.Map;import okhttp3.Call;import okhttp3.Callback;import okhttp3.FormBody;import okhttp3.MediaType;import okhttp3.MultipartBody;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.RequestBody;import okhttp3.Response;/** * Created by YongLiu on 2017/9/13. */public class HttpUtils {    private static OkHttpClient client = null;    private static MultipartBody.Builder builder;    private static MediaType media_type;    private HttpUtils() {    }    public static OkHttpClient getInstance() {        if (client == null) {            synchronized (HttpUtils.class) {                if (client == null) {                    client = new OkHttpClient();                }            }        }        return client;    }    /**     * Get请求     *     * @param url     * @param callback     */    public static void doGet(String url, Callback callback) {        Request request = new Request.Builder()                .url(url)                .build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    /**     * 项目封装 - Get数据 - 头形式上传     */    public static void doHeadGet(String url, Callback callback) {        Request request = new Request.Builder()                .url(url)//                .addHeader("token","4cDA9M")                .build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    /**     * Post请求发送键值对数据     *     * @param url     * @param mapParams     * @param callback     */    public static void doPost(String url, Map<String, String> mapParams, Callback callback) {        FormBody.Builder builder = new FormBody.Builder();        for (String key : mapParams.keySet()) {            builder.add(key, mapParams.get(key));        }        Request request = new Request.Builder()                .url(url)                .post(builder.build())                .build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    /**     * Post请求发送JSON数据     *     * @param url     * @param jsonParams     * @param callback     */    public static void doPost(String url, String jsonParams, Callback callback) {        RequestBody body = RequestBody.create(MediaType.parse("application/json; charset=utf-8")                , jsonParams);        Request request = new Request.Builder()                .url(url)                .post(body)                .build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    /**     * 项目封装 - Post数据 - 头形式上传     */    public static void doHeadPost(String url, String jsonParams, final OnResultListener resultListener) {        RequestBody body = RequestBody.create(MediaType.parse("application/json; charset=utf-8")                , jsonParams);        Request request = new Request.Builder()                .url(url)                .addHeader("token","c794fa2810cdd726a0d9f35614a2e43de2bee65a")                .post(body)                .build();        Call call = getInstance().newCall(request);        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                resultListener.onFailure(e);            }            @Override            public void onResponse(Call call, Response response) throws IOException {                String responseBody = response.body().string();                if (!TextUtils.isEmpty(responseBody)) {                    BaseModel bean = FastJsonTools.getBean(responseBody, BaseModel.class);                    String result = bean.getResult();                    if ("0".equals(result)) {                        resultListener.onSuccess(responseBody);                    } else {                        Log.e("tag", "result =" + result);                        Log.e("tag", "Dest =" + bean.getDesc());                    }                } else {                    Log.e("tag", "请求返回的是串");                }            }        });    }    /**     * 上传文件     *     * @param url     * @param pathName     * @param fileName     * @param callback     */    public static void doFile(String url, String pathName, String fileName, Callback callback) {        //判断文件类型        MediaType mediaType = MediaType.parse(judgeType(pathName));        //创建文件参数        MultipartBody.Builder builder = new MultipartBody.Builder()                .setType(MultipartBody.FORM)                .addFormDataPart(mediaType.type(), fileName,                        RequestBody.create(mediaType, new File(pathName)));        //发出请求参数        Request request = new Request.Builder()                .url(url)                .post(builder.build())                .build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    private static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");    /**     * 项目封装 - 上传头像     */    public static void doHeadFile(String url, String pathName, String fileName, Callback callback) {        //判断文件类型        MediaType mediaType = MediaType.parse(judgeType(pathName));        //创建文件参数        builder = new MultipartBody.Builder()                .setType(MultipartBody.FORM)                .addFormDataPart("avatar", fileName,                        RequestBody.create(MEDIA_TYPE_PNG, new File(pathName)));        //发出请求参数        Request request = new Request.Builder()//                .addHeader("token", SharedPreferencesUtil.getString(CarMasterApplication.getContext(), "token"))                .url(url)                .post(builder.build())                .build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    /**     * 项目封装 - 上传图片     */    public static void doMoreFile(Context context, final String url, List<String> lists, String pathName, String fileName, final Callback callback) {        final List<File> endList = new ArrayList<>();        for (int i = 0; i < lists.size(); i++) {            //判断文件类型            media_type = MediaType.parse(judgeType(lists.get(i).toString()));        }        List<File> imgList = new ArrayList<>();        for (int i = 0; i < lists.size(); i++) {            File file = new File(lists.get(i));            imgList.add(file);        }        for (int c = 0; c < imgList.size(); c++) {            long length = imgList.get(c).length();//            File yasuo = AppUtil.yasuo(imgList.get(c));//            endList.add(yasuo);        }        builder = new MultipartBody.Builder();        builder.setType(MultipartBody.FORM);        for (File files : endList) {            if (files.exists()) {                builder.addFormDataPart("img", files.getName(),                        RequestBody.create(MEDIA_TYPE_PNG, new File(files.toString())));            }        }        Request request = new Request.Builder()//                .addHeader("token", SharedPreferencesUtil.getString(context, "token"))                .url(url)                .post(builder.build())                .build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    /**     * 根据文件路径判断MediaType     *     * @param path     * @return     */    private static String judgeType(String path) {        FileNameMap fileNameMap = URLConnection.getFileNameMap();        String contentTypeFor = fileNameMap.getContentTypeFor(path);        if (contentTypeFor == null) {            contentTypeFor = "application/octet-stream";        }        return contentTypeFor;    }    /**     * 下载文件     *     * @param url     * @param fileDir     * @param fileName     */    public static void downFile(String url, final String fileDir, final String fileName) {        Request request = new Request.Builder()                .url(url)                .build();        Call call = getInstance().newCall(request);        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {            }            @Override            public void onResponse(Call call, Response response) throws IOException {                InputStream is = null;                byte[] buf = new byte[2048];                int len = 0;                FileOutputStream fos = null;                try {                    is = response.body().byteStream();                    File file = new File(fileDir, fileName);                    fos = new FileOutputStream(file);                    while ((len = is.read(buf)) != -1) {                        fos.write(buf, 0, len);                    }                    fos.flush();                } catch (IOException e) {                    e.printStackTrace();                } finally {                    if (is != null) {                        is.close();                    }                    if (fos != null) {                        fos.close();                    }                }            }        });    }}

关键认知扩展工作（双层回调，底层封装状态判断）：

/**     * 项目封装 - Post数据 - 头形式上传     */    public static void doHeadPost(String url, String jsonParams, final OnResultListener resultListener) {        RequestBody body = RequestBody.create(MediaType.parse("application/json; charset=utf-8")                , jsonParams);        Request request = new Request.Builder()                .url(url)                .addHeader("token", "c794fa2810cdd726a0d9f35614a2e43de2bee65a")                .post(body)                .build();        Call call = getInstance().newCall(request);        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                resultListener.onFailure(e);            }            @Override            public void onResponse(Call call, Response response) throws IOException {                String responseBody = response.body().string();                if (!TextUtils.isEmpty(responseBody)) {                    BaseModel bean = FastJsonTools.getBean(responseBody, BaseModel.class);                    String result = bean.getResult();                    if ("0".equals(result)) {                        resultListener.onSuccess(responseBody);                    } else {                        Log.e("tag", "result =" + result);                        Log.e("tag", "Dest =" + bean.getDesc());                    }                } else {                    Log.e("tag", "请求返回的是串");                }            }        });    }