-
初始化
OkHttpClient client;
client = new OkHttpClient();
-
get+表单请求：
注意回调不是在主线程执行的，所有操作ui要runonuithread
protected void okHttpGet() {
Request.Builder builder = new Request.
Builder()
.url("http://apis.juhe.cn/cook/query?key=4ecde5ed955fadaf85d96529cd98beb4&menu=%E8%A5%BF%E7%BA%A2%E6%9F%BF");
builder.method("GET", null);
Request request = builder.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String str = response.body().string();
Log.d("qf", str);
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this, "ok", Toast.LENGTH_SHORT).show();
}
});
}
});
}
-
post+表单请求：
protected void okHttpPost() {
Request.Builder builder = new Request
.Builder()
.url("http://apis.juhe.cn/cook/query");
RequestBody body = new FormBody
.Builder()
.add("key", "4ecde5ed955fadaf85d96529cd98beb4")
.add("menu", "西红柿")
.build();
builder.post(body);
Request request = builder.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String str = response.body().string();
Log.i("zy", str);
}
});
}
-
post+json请求：
public static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
protected void okHttpPostJson() {
String url = "http://192.168.1.103/test/rest/rest.php/items";
String data = "{\"name\":\"Brett3\",\"link\":\"haha2\"}";
Request.Builder builder = new Request.Builder().url(url);
RequestBody body = RequestBody.create(JSON, data);
//builder.post(body);
builder.method("POST", body);
Request request = builder.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String str = response.body().string();
Log.i("zy", str);
}
});
}
-
下载：
protected void okHttpDownLoad() {
String url = "https://img-my.csdn.net/uploads/201603/26/1458988468_5804.jpg";
Request request = new Request.Builder().url(url).build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) {
InputStream inputStream = response.body().byteStream();
FileOutputStream fileOutputStream = null;
try {
fileOutputStream = new FileOutputStream(new File("/sdcard/wangshu.jpg"));
byte[] buffer = new byte[2048];
int len = 0;
while ((len = inputStream.read(buffer)) != -1) {
fileOutputStream.write(buffer, 0, len);
}
fileOutputStream.flush();
} catch (IOException e) {
Log.i("wangshu", "IOException");
e.printStackTrace();
}
Log.d("wangshu", "文件下载成功");
}
});
}
-
上传单文件：
上传服务器为github，生成markdown文件，上传一个文件，github这个服务可以对文件中内容按照一定语法进行处理
public static final MediaType MEDIA_TYPE_MARKDOWN
= MediaType.parse("text/x-markdown; charset=utf-8");
protected void okHttpUpdateFile() {
File file = new File("/sdcard/DownLoad/bb.txt");
Request request = new Request.Builder()
.url("https://api.github.com/markdown/raw")
.post(RequestBody.create(MEDIA_TYPE_MARKDOWN, file))
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String str = response.body().string();
Log.i("zy", str);
}
});
}
-
多文件（或多种数据类型）同时上传：
多文件（或多种数据类型）上传需要指定HTTP请求协议头的Content-Type字段为multipart/form-data
setType(MultipartBody.FORM)让okhttp知道是多文件上传
addFormDataPart指定需要上传的各个部分
下例中上传了两个内容，第一个内容命名为‘title’，内容为纯文本‘wangshu’
第二个内容命名为‘upload_file0’，内容为图片，图片名为"wangshu.jpg"，图片路径为"/sdcard/wangshu.jpg"
private static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");
private void sendMultipart() {
RequestBody requestBody = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("title", "wangshu")
.addFormDataPart("upload_file0"
, "wangshu.jpg"
, RequestBody.create(MEDIA_TYPE_PNG, new File("/sdcard/wangshu.jpg")))
.build();
Request request = new Request.Builder()
.url("http://192.168.1.107/upload.php")
.post(requestBody)
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
Log.i("wangshu", response.body().string());
}
});
}
-
okhttpclient的初始化设置：
protected void initOkHttpClient() {
//client = new OkHttpClient();
File sdcache = getExternalCacheDir();
int cacheSize = 10 * 1024 * 1024;
OkHttpClient.Builder builder = new OkHttpClient.Builder();
builder.connectTimeout(10, TimeUnit.SECONDS)
.readTimeout(5, TimeUnit.SECONDS)
.writeTimeout(5, TimeUnit.SECONDS);
builder.cache(new Cache(sdcache, cacheSize));
client = builder.build();
}
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同步执行：
protected void syncExcute(){
Request.Builder builder = new Request.
Builder()
.url("http://apis.juhe.cn/cook/query?key=4ecde5ed955fadaf85d96529cd98beb4&menu=%E8%A5%BF%E7%BA%A2%E6%9F%BF");
builder.method("GET", null);
Request request = builder.build();
try {
Response response = client.newCall(request).execute();
String str = response.body().string();
Log.d("qf",str);
} catch (IOException e) {
e.printStackTrace();
}
}
new Thread(){
@Override
public void run() {
syncExcute();
}
}.start();
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