如何在字符串中显示从（服务器）接收的图像？这是代码：

Posted 2023-02-25

【中文标题】如何在字符串中显示从（服务器）接收的图像？这是代码：

【英文标题】：How can i display images that i am receiving from (server) in a string ? Here is the code:

【发布时间】：2017-12-30 21:25:53

【问题描述】：

如何在字符串中显示我从（服务器）接收的图像？ 我正在使用AsyncTask

代码如下：

异步任务

public class sendRequest extends AsyncTask<String, Void,String> 

    String response="";
    Context context;


    sendRequest(Context context)
    
        this.context=context;
       // this.list=list;
    


    @Override
    protected void onPreExecute() 
        super.onPreExecute();


    

    @Override
    protected String doInBackground(String... params)
    



    URL url;
    BufferedReader reader = null;


    String link =<i> "example.com/example.php";</i>


    try 
        url = new URL(link);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();

        connection.setConnectTimeout(5 * 1000);
        connection.setReadTimeout(5 * 1000);
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setRequestMethod("POST");

        connection.connect();

        String inputToFile = URLEncoder.encode("mName", "UTF-8") + "=" + URLEncoder.encode("name", "UTF-8");



        OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
        writer.write(inputToFile);
        writer.flush();

        reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));

        String line = null;

        while ((line = reader.readLine()) != null) 

//Here i have add data to string how to display images 

//The result of Toast in onpostexecute is

//"images":["image":"http:\/\/example.com\/example.jpg","image":"http:\/\/example.com\/example.jpg"]

            response += line;


        

        //Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
        //Toast.makeText(context,bmp.toString(),Toast.LENGTH_SHORT).show();


     catch (MalformedURLException e) 
        //   DonorList.setText("Url Error");
        e.printStackTrace();
        response = "Exception: " + e.getMessage();
     catch (IOException e) 
        //   DonorList.setText("Connection could not be opened");
        e.printStackTrace();
        response += "Exception: " + e.getMessage();
    

        return response;

    // DO IN BACKGROUND



    @Override
    protected void onPostExecute(String response) 

        super.onPostExecute(response);

        Toast.makeText(context, "Recieved: "+response, Toast.LENGTH_LONG).show();

【问题讨论】：

图像是二进制的 - 你希望如何显示为文本？

请简要告诉我们您的问题。只有代码没有帮助？你想达到什么目标？

我想在从服务器接收到的图像视图中显示图像。

您的代码显示您有一个 json 数据作为响应，并且您想从 url 中取出位图？是这样吗？如果是，问题出在哪里？

***.com/questions/44724824/dowloading-image-using-url/…

【参考方案1】：

使用 Glide 库在 ImageView 中加载图像

Glide.with(context).load(image_url).into(imageView);