下载从OKHTTP二进制文件

下载从OKHTTP二进制文件

本文介绍了下载从OKHTTP二进制文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我使用OKHTTP客户端联网在我的Andr​​oid应用程序。

This示例说明了如何上传二进制文件。我想知道如何得到的二进制文件的InputStream的下载与OKHTTP客户端。

下面是示例的清单:

 公共类InputStreamRequestBody扩展RequestBody {

私人的InputStream InputStream的;
私人的MediaType mediaType的;

公共静态RequestBody创建(最终的MediaType mediaType的,最终的InputStream的InputStream){


    返回新InputStreamRequestBody(的InputStream,mediaType的);
}

私人InputStreamRequestBody(InputStream中的InputStream,的MediaType mediaType的){
    this.inputStream =的InputStream;
    this.mediaType = mediaType的;
}

@覆盖
公众的MediaType的contentType(){
    返回mediaType的;
}

@覆盖
众长CONTENTLENGTH(){
    尝试 {
        返回inputStream.available();
    }赶上(IOException异常E){
        返回0;
    }
}

@覆盖
公共无效的writeTo(BufferedSink汇)抛出IOException异常{
    来源来源= NULL;
    尝试 {
        来源= Okio.source(InputStream的);
        sink.writeAll(源);
    } 最后 {
        Util.closeQuietly(源);
    }
 }
}
 

目前的$ C $下简单的GET请求是:

  OkHttpClient客户端=新OkHttpClient();
要求=新Request.Builder()。URL(URL字符串这里)
                    .addHeader(X-CSRFToken,csrftoken)
                    .addHeader(内容类型,应用/ JSON)建立()。
            响应= getClient()新呼叫(要求).execute()。
 

现在我怎么转换响应的InputStream。同样的事情也从Apache的HTTP客户端这样的响应OKHTTP响应:

 的InputStream是= response.getEntity()的getContent()。
 

编辑:

从下面的接受的答案。我修改code:

 要求=新Request.Builder()URL(urlString).build()。
    响应= getClient()新呼叫(要求).execute()。

    InputStream的是= response.body()的字节流()。

    的BufferedInputStream输入=新的BufferedInputStream(是);
    的OutputStream输出=新的FileOutputStream(文件);

    byte []的数据=新的字节[1024];

    总长= 0;

    而((计数= input.read(数据))!=  -  1){
        共有+ =计数;
        output.write(数据,0,计数);
    }

    output.flush();
    output.close();
    input.close();
 

解决方案

获取字节流从OKHTTP

我一直在周围挖OKHTTP的文档中,你需要走这条路

使用这个方法:

,所以你可以简单地使用一个BufferedReader或任何其他替代

  OkHTTPClient客户端=新OkHttpClient();
 要求=新Request.Builder()。URL(URL字符串这里)
                    .addHeader(X-CSRFToken,csrftoken)
                    .addHeader(内容类型,应用/ JSON)建立()。
响应= getClient()新呼叫(要求).execute()。

在的InputStream = response.body()。字节流()
的BufferedReader读卡器=新的BufferedReader(新的InputStreamReader(在));
字符串结果,线= reader.readLine();
结果=行;
而((行= reader.readLine())!= NULL){
    结果+ =行;
}
的System.out.println(结果);
 

I am using OKHTTP client for networking in my android application.

This example shows how to upload binary file. I would like to know how to get inputstream of binary file downloading with OKHTTP client.

Here is the listing of the example :

public class InputStreamRequestBody extends RequestBody {

private InputStream inputStream;
private MediaType mediaType;

public static RequestBody create(final MediaType mediaType, final InputStream inputStream) {


    return new InputStreamRequestBody(inputStream, mediaType);
}

private InputStreamRequestBody(InputStream inputStream, MediaType mediaType) {
    this.inputStream = inputStream;
    this.mediaType = mediaType;
}

@Override
public MediaType contentType() {
    return mediaType;
}

@Override
public long contentLength() {
    try {
        return inputStream.available();
    } catch (IOException e) {
        return 0;
    }
}

@Override
public void writeTo(BufferedSink sink) throws IOException {
    Source source = null;
    try {
        source = Okio.source(inputStream);
        sink.writeAll(source);
    } finally {
        Util.closeQuietly(source);
    }
 }
}

Current code for simple get request is:

OkHttpClient client = new OkHttpClient();
request = new Request.Builder().url("URL string here")
                    .addHeader("X-CSRFToken", csrftoken)
                    .addHeader("Content-Type", "application/json").build();
            response = getClient().newCall(request).execute();

Now how do I convert the response to Inputstream. Something similar to response from Apache HTTP Client like this for OKHTTP response:

InputStream is = response.getEntity().getContent();

EDIT:

Accepted answer from below.My modified code:

    request = new Request.Builder().url(urlString).build();
    response = getClient().newCall(request).execute();

    InputStream is = response.body().byteStream();

    BufferedInputStream input = new BufferedInputStream(is);
    OutputStream output = new FileOutputStream(file);

    byte[] data = new byte[1024];

    long total = 0;

    while ((count = input.read(data)) != -1) {
        total += count;
        output.write(data, 0, count);
    }

    output.flush();
    output.close();
    input.close();
解决方案

Getting ByteStream from OKHTTP

I've been digging around in the Documentation of OKHTTP you need to go this way

use this method :

so you can simply use a BufferedReader or any other alternative

 OkHTTPClient client = new OkHttpClient();
 request = new Request.Builder().url("URL string here")
                    .addHeader("X-CSRFToken", csrftoken)
                    .addHeader("Content-Type", "application/json").build();
response = getClient().newCall(request).execute();

InputStream in = response.body().byteStream()
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
String result, line = reader.readLine();
result = line;
while((line = reader.readLine()) != null) {
    result += line;
}
System.out.println(result);

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07-22 11:34