blocks|key|161863|text|我找到了双post的解决方案，我只是将超时设置为0。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|161864|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I found the solution for the double post, I just set the timeout to 0.

blocks|key|2963232|text|我设法通过如下配置HttpURLConnection解决了这个问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2963233|connection.setChunkedStreamingMode(0);|code-block|syntax|javascript|2963234|我在Volley电子邮件列表(https://groups.google.com/forum/#!topic/volley-users/8PE9dBbD6iA)中开始了关于这方面的讨论。|offset|length|2963235|entityMap|0|LINK|mutability|MUTABLE|url|https://groups.google.com/forum/#!topic/volley-users/8PE9dBbD6iA^0|0|0|F|1S|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

I managed to fix this by configuring HttpURLConnection like this:

<pre><code>connection.setChunkedStreamingMode(0);
</code></pre>

I started a discussion about this in Volley email list (<a href="https://groups.google.com/forum/#!topic/volley-users/8PE9dBbD6iA" rel="nofollow">https://groups.google.com/forum/#!topic/volley-users/8PE9dBbD6iA</a>).

blocks|key|159478|text|我在这里问了一个类似的问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|159479|Android+Volley+makes+2+requests+to+the+server+when+retry+policy+is+set+to+0|offset|length|159480|我设法解决了这个问题，方法是在Android中将keep-alive属性设置为false，例如：|159481|System.setProperty("http.keepAlive",+"false")|code-block|syntax|javascript|159482|我在导入requestqueue和发出请求的类中添加了这行代码。|159483|另外，检查您的服务器是否有keep-alive标头。|159484|这个post帮助我们找到了解决方案。|159485|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/26264942/android-volley-makes-2-requests-to-the-server-when-retry-policy-is-set-to-0|1|https://stackoverflow.com/questions/3352424/httpurlconnection-openconnection-fails-second-time^0|0|0|23|0|0|0|0|0|0|2|4|1|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@$D|14|E|15|1|16]]|A|$]]|$1|F|3|G|5|6|7|17|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|18|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|19|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1A|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@$D|1C|E|1D|1|1E]]|A|$]]|$1|S|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]|10|$5|V|W|X|A|$Y|11]]]]

I asked a similar question here:

<a href="https://stackoverflow.com/questions/26264942/android-volley-makes-2-requests-to-the-server-when-retry-policy-is-set-to-0">Android Volley makes 2 requests to the server when retry policy is set to 0</a>

I managed to solve this issue by setting the keep-alive property to false inside Android, e.g.:

<pre><code>System.setProperty("http.keepAlive", "false")
</code></pre>

I added this line of code inside the class where I import requestqueue and make the requests.

Also, check if you server has the keep-alive header.

This <a href="https://stackoverflow.com/questions/3352424/httpurlconnection-openconnection-fails-second-time">post</a> helped get to the solution.

blocks|key|161894|text|我可以通过两种方法来解决这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|161895|首先是更改RetryPolicy。只需将超时值设置为默认超时的两倍。工作得很好。您也可以尝试其他值。|offset|length|style|CODE|161896|request.setRetryPolicy(new+DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS+*+2,+DefaultRetryPolicy.DEFAULT_MAX_RETRIES,+DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|code-block|syntax|javascript|161897|另一种方法是在openConnection方法HurlStack类中设置connection.setChunkedStreamingMode(0);。|161898|我像这个requestQueue+=+Volley.newRequestQueue(context,+new+HurlStack());一样创建我的RequestQueue|161899|希望它能有所帮助:)|161900|entityMap^0|0|5|B|0|0|7|E|N|9|10|12|0|4|1S|22|C|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|Y|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|Z|8|@$D|10|E|11|F|G]|$D|12|E|13|F|G]|$D|14|E|15|F|G]]|9|@]|A|$]]|$1|O|3|P|5|6|7|16|8|@$D|17|E|18|F|G]|$D|19|E|1A|F|G]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|T|$]]

I am able to solve this issue by two ways.

First is changed the <code>RetryPolicy</code>.
Simply set the timeout value to double of the default timeout. Worked fine. You can also try other values.

<pre><code>request.setRetryPolicy(new DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS * 2, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

Another way is by setting <code>connection.setChunkedStreamingMode(0);</code> in <code>openConnection</code> method <code>HurlStack</code> class.

I am creating my <code>RequestQueue</code> like this <code>requestQueue = Volley.newRequestQueue(context, new HurlStack());</code>

Hope it helps :)

blocks|key|159494|text|您必须将RetryPolicy设置为0次重试，并确保超时大于服务器超时。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|159495|setRetryPolicy(new+DefaultRetryPolicy("bigger+than+server+timeout",
++++++++++++++++++++++++++++++++++++++0,
++++++++++++++++++++++++++++++++++++++DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|code-block|syntax|javascript|159496|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You must set the RetryPolicy to 0 retries and ensure that the timeout is bigger than the server timeout.

<pre><code>setRetryPolicy(new DefaultRetryPolicy("bigger than server timeout",
 0,
 DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

blocks|key|161926|text|仅仅将RetryPolicy中的超时设置为0太小了。在检查源之后，您必须实际设置最大重试次数<+0，因为它正在检查当前的<=最大值...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|161927|我修复了双重发布，将策略设置为以下内容|161928|new+DefaultRetryPolicy(0,+-1,+DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|code-block|syntax|javascript|161929|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Just setting the Timeout in the RetryPolicy to 0 is too little.
After checking the source, you have to actually set the maximum number of retries &lt; 0, as it is checking current &lt;= max...
I fixed double posting with setting the policy to the following
<pre><code>new DefaultRetryPolicy(0, -1, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

blocks|key|158311|text|只是maxNumRetries+=+0没有工作。set+TIMEOUT_MS+20000。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|158312|request.setRetryPolicy(new+DefaultRetryPolicy(20000,+0,+DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|code-block|syntax|javascript|158313|entityMap^0|2|H|O|K|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

just <code>maxNumRetries = 0</code> no work.
<code>set TIMEOUT_MS 20000</code>.

<pre><code>request.setRetryPolicy(new DefaultRetryPolicy(20000, 0, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

blocks|key|2750818|text|request.setRetryPolicy(new+DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS+*+2,+DefaultRetryPolicy.DEFAULT_MAX_RETRIES,+DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2750819|这对我很有效。|unstyled|2750820|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>request.setRetryPolicy(new DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS * 2, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

This worked for me.

blocks|key|161945|text|将以下值添加到您的请求对象中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|161946|request.setRetryPolicy(new+DefaultRetryPolicy(
++++DefaultRetryPolicy.DEFAULT_TIMEOUT_MS+*+2,
++++DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
++++DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|code-block|syntax|javascript|161947|这里：请求是JsonObjectRequest的对象。根据Volley中DefaultRetryPolicy类的默认超时值修改乘法器的值。|offset|length|style|BOLD|161948|也可以将第一个参数设置为0，如下所示：|161949|request.setRetryPolicy(new+DefaultRetryPolicy(
++++0,
++++DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
++++DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|161950|entityMap^0|0|0|0|3|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Add the following values to your Request object:

<pre><code>request.setRetryPolicy(new DefaultRetryPolicy(
 DefaultRetryPolicy.DEFAULT_TIMEOUT_MS * 2,
 DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
 DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

Here:
request is your object of JsonObjectRequest. Change the value of multiplicator according to the DEFAULT TIMEOUT VALUE in DefaultRetryPolicy class in Volley.

You can also set the first argument to 0, like below:

<pre><code>request.setRetryPolicy(new DefaultRetryPolicy(
 0,
 DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
 DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

blocks|key|2750840|text|我找到了多个post错误的解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2750841|更改RetryPolicy。我将超时值设置为50000ms，如下所示：|2750842|++request.setRetryPolicy(
++++++++++++++++new+DefaultRetryPolicy(
++++++++++++++++++++++++500000,
++++++++++++++++++++++++DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
++++++++++++++++++++++++DefaultRetryPolicy.DEFAULT_BACKOFF_MULT
++++++++++++++++)
++++++++);|code-block|syntax|javascript|2750843|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I found the solution for the multi post bug.

Change the RetryPolicy. 
I set the timeout value to 50000ms, worked fine
Like this:

<pre><code> request.setRetryPolicy(
 new DefaultRetryPolicy(
 500000,
 DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
 DefaultRetryPolicy.DEFAULT_BACKOFF_MULT
 )
 );
</code></pre>

blocks|key|2963351|text|请增加setRetryPolicy时间。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2963352|request.setRetryPolicy(new+DefaultRetryPolicy(
++++++++++++++++++++30000,
++++++++++++++++++++DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
++++++++++++++++++++DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
++++++++++++Volley.newRequestQueue(this).add(equest);|code-block|syntax|javascript|2963353|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

please increase the setRetryPolicy time.

<pre><code>request.setRetryPolicy(new DefaultRetryPolicy(
 30000,
 DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
 DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
 Volley.newRequestQueue(this).add(equest);
</code></pre>

blocks|key|158340|text|让双重请求停止的唯一方法是将重试策略重试次数设置为-1|type|unstyled|depth|inlineStyleRanges|entityRanges|data|158341|request.setRetryPolicy(new+DefaultRetryPolicy(0,+-1,+0));|code-block|syntax|javascript|158342|我认为这是因为在hasAttemptRemaining()方法中，如果retryCount为0且最大重试次数也为0，则DefaultRetryPolicy的剩余尝试逻辑返回true：|158343|protected+boolean+hasAttemptRemaining()+{
++++return+this.mCurrentRetryCount+<=+this.mMaxNumRetries;
}|158344|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The only way I got the double requests to stop was to set the retry policy retries to -1

<pre><code>request.setRetryPolicy(new DefaultRetryPolicy(0, -1, 0));
</code></pre>

I think this is because the DefaultRetryPolicy's logic for attempts remaining returns true if retryCount is 0 and Max retries is also 0 in the hasAttemptRemaining() method:

<pre><code>protected boolean hasAttemptRemaining() {
 return this.mCurrentRetryCount &lt;= this.mMaxNumRetries;
}
</code></pre>

blocks|key|161970|text|这对我很有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|161971|public+class+MyRetryPolicyWithoutRetry+implements+RetryPolicy
{
++++@override
++++public+int+getCurrentTimeout()
++++{
++++++++return+CONNECTION_TIME_OUT;+/200000/
++++}

++++@Override
++++public+int+getCurrentRetryCount()
++++{
++++++++return+0;
++++}

++++@Override
++++public+void+retry(VolleyError+error)+throws+VolleyError
++++{
++++++++throw(error);
++++}
}|code-block|syntax|javascript|161972|要使用以下命令：|161973|request.setRetryPolicy(new+MyRetryPolicyWithoutRetry());|161974|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

This works for me.

<pre><code>public class MyRetryPolicyWithoutRetry implements RetryPolicy
{
 @override
 public int getCurrentTimeout()
 {
 return CONNECTION_TIME_OUT; /200000/
 }

 @Override
 public int getCurrentRetryCount()
 {
 return 0;
 }

 @Override
 public void retry(VolleyError error) throws VolleyError
 {
 throw(error);
 }
}
</code></pre>

To use:

<pre><code>request.setRetryPolicy(new MyRetryPolicyWithoutRetry());
</code></pre>

blocks|key|2963396|text|我试了很多方法，但最后都没有用。最后，我想出了以下变化的组合：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2963397|sr.setRetryPolicy(new+DefaultRetryPolicy(0,-1,+DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|code-block|syntax|javascript|2963398|在应用程序类中的hurl连接中，添加以下内容：|2963399|httpsURLConnection.setChunkedStreamingMode(0);|2963400|这顺利地阻止了截击在服务器上的多个请求。|2963401|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Tried lot of things but in the end nothing helped. Finally, I figured out following combination of changes:

<pre><code>sr.setRetryPolicy(new DefaultRetryPolicy(0,-1, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

And in your hurl connection in application class, add this:

<pre><code>httpsURLConnection.setChunkedStreamingMode(0);
</code></pre>

This worked smoothly to stop Volley hitting multiple request at server.

blocks|key|160803|text|纠正android+date修复了我的问题，不幸的是，出于测试目的，我已经更改了我的安卓日期，并得到了ssl安全错误。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|160804|entityMap^0|2|C|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

correcting the <code>android date</code> fixes my problem unfortunately for testing purpose i have changed my android date and get ssl security error.

blocks|key|160806|text|最佳解决方案：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|160807|jsonObjectRequest.setRetryPolicy(new+DefaultRetryPolicy(0,+
+++++DefaultRetryPolicy.DEFAULT_MAX_RETRIES,+DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|code-block|syntax|javascript|160808|对我很管用。|160809|entityMap^0|0|7|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Best Solution:

<pre><code>jsonObjectRequest.setRetryPolicy(new DefaultRetryPolicy(0, 
 DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

Worked for me.

blocks|key|2963444|text|截取请求策略只有一次请求，以避免重复发布|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2963445|我试过这个方案，但不起作用。|2963446|//...........solution+01
jsonObjectRequest.retryPolicy+=+DefaultRetryPolicy(
120000,+
0,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT)


or

//...........solution+02
jsonObjectRequest.retryPolicy+=+DefaultRetryPolicy(
0,+
-1,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT)


MySingleton.getInstance(this).addToRequestQueue(jsonObjectRequest)|code-block|syntax|javascript|2963447|完整源代码：https://androidkeynotes.blogspot.com/2020/02/volley.html|offset|length|2963448|entityMap|0|LINK|mutability|MUTABLE|url|https://androidkeynotes.blogspot.com/2020/02/volley.html^0|0|0|0|6|1K|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

Volley request policy only one time request to avoid duplicate post

I tried this solution, but does not working

<pre><code>//...........solution 01
jsonObjectRequest.retryPolicy = DefaultRetryPolicy(
120000, 
0,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT)


or

//...........solution 02
jsonObjectRequest.retryPolicy = DefaultRetryPolicy(
0, 
-1,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT)


MySingleton.getInstance(this).addToRequestQueue(jsonObjectRequest)
</code></pre>

Full Source Code: <a href="https://androidkeynotes.blogspot.com/2020/02/volley.html" rel="nofollow noreferrer">https://androidkeynotes.blogspot.com/2020/02/volley.html</a>

blocks|key|2750952|text|这是一个超时错误问题，请求被执行两次，因此您有一个双精度值|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2750953|尝试使用以下代码增加超时错误请求：|2750954|request.setRetryPolicy(new+DefaultRetryPolicy(
DefaultRetryPolicy.DEFAULT_TIMEOUT_MS+*+2,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));|code-block|syntax|javascript|2750955|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

It's a problem of timeout error
The request is execute twice so you have a double value

Try to increase the timeout error request with this code :

<pre><code>request.setRetryPolicy(new DefaultRetryPolicy(
DefaultRetryPolicy.DEFAULT_TIMEOUT_MS * 2,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
</code></pre>

I have a problem with Volley POST request on slow network. Everytime I see <code>BasicNetwork.logSlowRequests</code> in my LogCat, my POST request is executed twice or more resulting multiple (2 or more) postings for 1 request. I already set the retry policy to 0, but It doesn't help.

This is my LogCat

<blockquote>
 03-16 01:31:35.674: D/Volley(5984): [19807]
 BasicNetwork.logSlowRequests: HTTP response for request=&lt;[ ]
 <a href="http://[myserver]/api/places" rel="noreferrer">http://[myserver]/api/places</a> 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: [ ]
 <a href="http://[myserver]/api/places" rel="noreferrer">http://[myserver]/api/places</a> 0xfa7d0c33 NORMAL 1
</blockquote>

This is my code

<pre><code>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,
 DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
 getRequestQueue().add(request);
</code></pre>

Please help, I desperately finding solution for this problem.

Android Volley double post when have slow request

服务器

Android

我有一个问题，在慢速网络上的截击POST请求。每当我在我的LogCat中看到BasicNetwork.logSlowRequests时，我的POST请求就会被执行两次或更多，从而对一个请求执行多个(2个或更多)POST。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:...

问安卓截击双开机自检请求慢时
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