相关疑难解决方法(0)

我对慢速网络上的Volley POST请求有问题.每次我BasicNetwork.logSlowRequests在LogCat中看到,我的POST请求都会执行两次或更多次,从而产生多个(2次或更多次)1个请求的帖子.我已经将重试策略设置为0,但它没有帮助.

这是我的LogCat

03-16 01:31:35.674:D/Volley(5984):[19807] BasicNetwork.logSlowRequests:请求的HTTP响应= <[] http:// [myserver]/api/places 0xfa7d0c33 NORMAL 1> [lifetime = 3824 ],[size = 313],[rc = 200],[retryCount = 0] 03-16 01:31:35.704:D/Volley(5984):[1] Request.finish:3853 ms:[] http://[myserver]/api/places 0xfa7d0c33 NORMAL 1

这是我的代码

JSONObject body = new JSONObject();
try {
    body.put(PROTO_BODY_AUTHORIZATION, Sessions.getActiveSession().getToken());
} catch (JSONException e) {
    e.printStackTrace();
}

JsonObjectRequest request = new JsonObjectRequest(
        Request.Method.POST,
        context.getResources().getString(R.string.server_address) + "/places",
        body,
        callback,
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Toast.makeText(context, error.getMessage(), Toast.LENGTH_LONG).show();
            }
        }
);

request.setRetryPolicy(
        new DefaultRetryPolicy(
                DefaultRetryPolicy.DEFAULT_TIMEOUT_MS,
                0, …

我知道这个问题应该用System.setProperty修复("http.keepAlive","false"); 在openConnection之前,但这对我不起作用.首先尝试这个代码工作,第二个失败.即使我在不​​到5秒钟后尝试此请求,它也可以.如果我等待更多,它会再次失败

这是我的代码:

    System.setProperty("http.keepAlive", "false");
  HttpURLConnection conn = (HttpURLConnection) mURL.openConnection();
  conn.setUseCaches(false); 
  conn.setRequestProperty("Connection","Keep-Alive"); 
  conn.setRequestProperty("User-Agent", useragent);
  conn.setConnectTimeout (30000) ; 
  conn.setDoOutput(true); 
        conn.setDoInput(true); 

  consumer.sign(conn);
  InputSource is = new InputSource(conn.getInputStream());

我在最后一行得到了例外:

java.io.IOException: Write error: I/O error during system call, Broken pipe
W/System.err( 2164):  at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.nativewrite(Native Method)
W/System.err( 2164):  at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.access$600(OpenSSLSocketImpl.java:55)
W/System.err( 2164):  at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl$SSLOutputStream.write(OpenSSLSocketImpl.java:583)
W/System.err( 2164):  at java.io.OutputStream.write(OutputStream.java:82)
W/System.err( 2164):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.sendRequest(HttpURLConnectionImpl.java:1332)
W/System.err( 2164):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.doRequestInternal(HttpURLConnectionImpl.java:1656)
W/System.err( 2164):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.doRequest(HttpURLConnectionImpl.java:1649)
W/System.err( 2164):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:1153)
W/System.err( 2164):  at org.apache.harmony.luni.internal.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:253)

有人知道这里有什么问题吗？谢谢!