HttpClient gives HTTP 404 after multipart form submit

[mtomy]

Hello.

I'm using HttpClient 4.0 in my project. Firstly i'm submitting multipart form this way:

    HttpPost httpPost = new HttpPost("http://[host here]/in.php");

    MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
    entity.addPart("method", new StringBody("post"));
    entity.addPart("key", new StringBody("223fwe0923fjf23"));
    FileBody fileBody = new FileBody(new File("photo.jpg"), "image/jpeg");
    entity.addPart("file", fileBody);
    httpPost.setEntity(entity);

    HttpResponse response = httpClient.execute(httpPost);      
    HttpEntity result = response.getEntity();

    String responseString = "";
    if (result != null) {
        InputStream inputStream = result.getContent();

        byte[] buffer = new byte[1024];
        while(inputStream.read(buffer) > 0)
            responseString += new String(buffer);

        result.consumeContent();
    }

This performs successfully.
Then I'm getting some status info about form i've just submitted. I do it like this:

    HttpGet httpGet = new HttpGet("http://[host here]/res.php?key="+myKey+"&action=get&id="+id);
    HttpResponse response = httpClient.execute(httpGet);
    HttpEntity entity = response.getEntity();

execute() method throws ClientProtocolException. Using log4j i knew that web server says about HTTP 404 error.
Wierd detail:
DEBUG [org.apache.http.wire] >> "GET /res.php?key=46a350bd56f9&action=get&id=89619587[0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0] ....
Endless nulls in the end of request that are not concerned with my id variable.

One more detail: if i comment lines where i use FileBody class, all works fine with no any exceptions and HTTP 404. So, the problem isn't web server problem.

Am I working with multipart form wrong way?  Any help appreciated.
Thank you.

[olegk]

mtomy wrote:

> Hello.
>
> I'm using HttpClient 4.0 in my project. Firstly i'm submitting multipart
> form this way:
>
>     HttpPost httpPost = new HttpPost("http://[host here]/in.php");
>
>     MultipartEntity entity = new
> MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
>     entity.addPart("method", new StringBody("post"));
>     entity.addPart("key", new StringBody("223fwe0923fjf23"));
>     FileBody fileBody = new FileBody(new File("photo.jpg"), "image/jpeg");
>     entity.addPart("file", fileBody);
>     httpPost.setEntity(entity);
>
>     HttpResponse response = httpClient.execute(httpPost);      
>     HttpEntity result = response.getEntity();
>
>     String responseString = "";
>     if (result != null) {
>         InputStream inputStream = result.getContent();
>
>         byte[] buffer = new byte[1024];
>         while(inputStream.read(buffer) > 0)
>             responseString += new String(buffer);
>

This is obviously wrong. InputStream#read method does not necessarily
fill up the whole buffer.

This is a better way of doing the same:
----------------
String responseString = null;
if (result != null) {
     StringBuilder buffer = new StringBuilder();
     InputStream inputStream = entity.getContent();
     try {
         String charset = EntityUtils.getContentCharSet(entity);
         Reader reader = new InputStreamReader(inputStream, charset);
         int l;
         char[] tmp = new char[1024];
         while ((l = reader.read(tmp)) != -1) {
             buffer.append(tmp, 0, l);
         }
        responseString = buffer.toString();
     } finally {
         inputStream.close();
     }
}
----------------

Oleg

>         result.consumeContent();
>     }
>
> This performs successfully.
> Then I'm getting some status info about form i've just submitted. I do it
> like this:
>
>     HttpGet httpGet = new HttpGet("http://[host
> here]/res.php?key="+myKey+"&action=get&id="+id);
>     HttpResponse response = httpClient.execute(httpGet);
>     HttpEntity entity = response.getEntity();
>
> execute() method throws ClientProtocolException. Using log4j i knew that web
> server says about HTTP 404 error.
> Wierd detail:
> DEBUG [org.apache.http.wire] >> "GET
> /res.php?key=46a350bd56f9&action=get&id=89619587[0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0][0x0]
> ....
> Endless nulls in the end of request that are not concerned with my id
> variable.
>
> One more detail: if i comment lines where i use FileBody class, all works
> fine with no any exceptions and HTTP 404. So, the problem isn't web server
> problem.
>
> Am I working with multipart form wrong way?  Any help appreciated.
> Thank you.

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