使用OKHttp3 get请求 , post请求 , 多文件上传 , 包看包会

来源：互联网发布：战舰世界峰风数据编辑：程序博客网时间：2024/05/31 04:03

1 首先需要创建一个OKHttpClient

可以直接new一个

OkHttpClient client = new OkHttpClient()

更多的是用builder构造一个 (那个addInterceptor方法是添加拦截器 , 可以不写,具体的baidu, bing, sogou)

    private void buildHttpClient(){            this.client = new OkHttpClient.Builder()                    .addInterceptor(new Interceptor() {                        public Response intercept(Chain chain) throws IOException {                            Request request = chain.request();                            Response response = chain.proceed(request);                            return response;                        }                    })                    .connectTimeout(4000, TimeUnit.MILLISECONDS)                    .readTimeout(4000,TimeUnit.MILLISECONDS)                    .writeTimeout(4000, TimeUnit.MILLISECONDS)                    .build();    }

2 GET 请求

<strong>    </strong>private void get(){        /* 如果需要参数 , 在url后边拼接 :  ?a=aaa&b=bbb..... */        Request request = new Request.Builder().url("http://192.168.10.117:8080/test").build();        client.newCall(request).enqueue(new Callback() {            public void onResponse(Call call, final Response response) throws IOException {                final String result = response.body().string();                final boolean ok = response.isSuccessful();                runOnUiThread(new Runnable() {                    public void run(){                        Toast.makeText(OKHttpActivity.this, result, Toast.LENGTH_SHORT).show();                    }                });            }            public void onFailure(Call call, IOException e) {                runOnUiThread(new Runnable() {                    public void run() {                        Toast.makeText(OKHttpActivity.this, "error", Toast.LENGTH_SHORT).show();                    }                });            }        });    }

3 POST 请求

    private void post(){        FormBody.Builder builder = new FormBody.Builder();        /* 添加两个参数 */        builder.add("p","我勒个去").add("a","hello");        FormBody body = builder.build();        Request request = new Request.Builder().url("http://192.168.10.117:8080/test").post(body).build();        /* 下边和get一样了 */        client.newCall(request).enqueue(new Callback() {            public void onResponse(Call call, Response response) throws IOException {                final  String bodyStr = response.body().string();                final boolean ok = response.isSuccessful();                runOnUiThread(new Runnable() {                    public void run() {                        if(ok){                            Toast.makeText(OKHttpActivity.this, bodyStr, Toast.LENGTH_SHORT).show();                        }else{                            Toast.makeText(OKHttpActivity.this, "server error : " + bodyStr, Toast.LENGTH_SHORT).show();                        }                    }                });            }            public void onFailure(Call call,final IOException e) {                runOnUiThread(new Runnable() {                    public void run() {                        Toast.makeText(OKHttpActivity.this, "error : "+e.toString(), Toast.LENGTH_SHORT).show();                    }                });            }        });    }

4 多文件上传

    private void upFile(){        /* 第一个要上传的file */        File file1 = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/a.jpg");        RequestBody fileBody1 = RequestBody.create(MediaType.parse("application/octet-stream") , file1);        String file1Name = "testFile1.txt";        /* 第二个要上传的文件,这里偷懒了,和file1用的一个图片 */        File file2 = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/a.jpg");        RequestBody fileBody2 = RequestBody.create(MediaType.parse("application/octet-stream") , file2);        String file2Name = "testFile2.txt";        /* form的分割线,自己定义 */        String boundary = "xx--------------------------------------------------------------xx";        MultipartBody mBody = new MultipartBody.Builder(boundary).setType(MultipartBody.FORM)                /* 上传一个普通的String参数 , key 叫 "p" */                .addFormDataPart("p" , "你大爷666")                /* 底下是上传了两个文件 */                .addFormDataPart("file" , file1Name , fileBody1)                .addFormDataPart("file" , file2Name , fileBody2)                .build();        /* 下边的就和post一样了 */        Request request = new Request.Builder().url("http://192.168.10.117:8080/test").post(mBody).build();        client.newCall(request).enqueue(new Callback() {            public void onResponse(Call call, Response response) throws IOException {                final  String bodyStr = response.body().string();                final boolean ok = response.isSuccessful();                runOnUiThread(new Runnable() {                    public void run() {                        if(ok){                            Toast.makeText(OKHttpActivity.this, bodyStr, Toast.LENGTH_SHORT).show();                        }else{                            Toast.makeText(OKHttpActivity.this, "server error : " + bodyStr, Toast.LENGTH_SHORT).show();                        }                    }                });            }            public void onFailure(Call call, final IOException e) {                runOnUiThread(new Runnable() {                    public void run() {                        Toast.makeText(OKHttpActivity.this, e.toString(), Toast.LENGTH_SHORT).show();                    }                });            }        });    }

简单封装了一个 : https://github.com/yangzhongxu/OkHttp

4 2