blocks|key|769053|text|您可能需要考虑使用HttpClient+library+from+Apache。它有HttpPost类，非常容易使用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|769054|entityMap|0|LINK|mutability|MUTABLE|url|http://hc.apache.org/httpcomponents-client-ga/^0|16|8|9|U|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

You may want to consider using <a href="http://hc.apache.org/httpcomponents-client-ga/" rel="nofollow">HttpClient library from Apache</a>. It's got <code>HttpPost</code> class, which is very easy to use.

blocks|key|552440|text|阿帕奇的HttpClient项目将为您更好地处理此问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|552441|或者你可以试试下面的代码：|552442|//+Using+java.net.URL+and++
　　//java.net.URLConnection++
　　URL+url+=+new+URL("http://jobsearch.dice.com/jobsearch/jobsearch.cgi");+++
　　URLConnection+connection+=+url.openConnection();
　　connection.setDoOutput(true);++
　　OutputStreamWriter+out+=+newOutputStreamWriter(uc.getOutputStream(),+"8859_1");+++
　　out.write("username=bob&password="%2Bpassword%2B"");+++
　　//+remember+to+clean+up+++
　　out.flush();+++
　　out.close();|code-block|syntax|javascript|552443|entityMap|0|LINK|mutability|MUTABLE|url|http://hc.apache.org/httpclient-3.x/^0|4|A|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Apache's <a href="http://hc.apache.org/httpclient-3.x/" rel="nofollow">HttpClient</a> project will handle this better for you.

or you can try this code: 

<pre><code>// Using java.net.URL and 
　　//java.net.URLConnection 
　　URL url = new URL("http://jobsearch.dice.com/jobsearch/jobsearch.cgi"); 
　　URLConnection connection = url.openConnection();
　　connection.setDoOutput(true); 
　　OutputStreamWriter out = newOutputStreamWriter(uc.getOutputStream(), "8859_1"); 
　　out.write("username=bob&amp;password="+password+""); 
　　// remember to clean up 
　　out.flush(); 
　　out.close();
</code></pre>

blocks|key|769091|text|您可以编写类似以下内容的代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|769092|+import+org.apache.commons.httpclient.HttpClient;
+import+org.apache.commons.httpclient.HttpException;
+import+org.apache.commons.httpclient.HttpStatus;
+import+org.apache.commons.httpclient.methods.PostMethod;
+import+org.apache.http.impl.client.HttpClients;

public+class+PostReqEx+{

++public+void+sendReq(String+url,String+email,String+fname){
++++HttpClient+httpClient+=+HttpClients.createDefault();
++++PostMethod+postMethod+=+new+PostMethod(url);
++++postMethod.addParameter("Email",+email);
++++postMethod.addParameter("fname",+fname);
++++try+{
++++++++httpClient.executeMethod(postMethod);
++++}+catch+(HttpException+e)+{
++++++++e.printStackTrace();
++++}+catch+(IOException+e)+{
++++++++e.printStackTrace();
++++}

++++if+(postMethod.getStatusCode()+==+HttpStatus.SC_OK)+{
++++++++String+resp+=+postMethod.getResponseBodyAsString();
++++}+else+{
+++++++++//...postMethod.getStatusLine();
++++}
++}
}|code-block|syntax|javascript|769093|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 can write code similar to this :

<pre><code> import org.apache.commons.httpclient.HttpClient;
 import org.apache.commons.httpclient.HttpException;
 import org.apache.commons.httpclient.HttpStatus;
 import org.apache.commons.httpclient.methods.PostMethod;
 import org.apache.http.impl.client.HttpClients;

public class PostReqEx {

 public void sendReq(String url,String email,String fname){
 HttpClient httpClient = HttpClients.createDefault();
 PostMethod postMethod = new PostMethod(url);
 postMethod.addParameter("Email", email);
 postMethod.addParameter("fname", fname);
 try {
 httpClient.executeMethod(postMethod);
 } catch (HttpException e) {
 e.printStackTrace();
 } catch (IOException e) {
 e.printStackTrace();
 }

 if (postMethod.getStatusCode() == HttpStatus.SC_OK) {
 String resp = postMethod.getResponseBodyAsString();
 } else {
 //...postMethod.getStatusLine();
 }
 }
}
</code></pre>

blocks|key|769119|text|它很容易使用unirest。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|769120|<dependency>
++++<groupId>com.konghq</groupId>
++++<artifactId>unirest-java</artifactId>
++++<version>3.1.02</version>
++++<classifier>standalone</classifier>
</dependency>



Unirest.config().verifySsl(false);
++++++++HttpResponse+response+=+Unirest.post("http://127.0.0.1")
++++++++++++++++.field("timestamp",+"1571971524")
++++++++++++++++.field("appId",+"xxx")
++++++++++++++++.field("sign",+"3e345613c687110ebf437da23ad5a13f")
++++++++++++++++.asString();|code-block|syntax|javascript|769121|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|$]]

It's easy to use unirest . 

<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;com.konghq&lt;/groupId&gt;
 &lt;artifactId&gt;unirest-java&lt;/artifactId&gt;
 &lt;version&gt;3.1.02&lt;/version&gt;
 &lt;classifier&gt;standalone&lt;/classifier&gt;
&lt;/dependency&gt;



Unirest.config().verifySsl(false);
 HttpResponse response = Unirest.post("http://127.0.0.1")
 .field("timestamp", "1571971524")
 .field("appId", "xxx")
 .field("sign", "3e345613c687110ebf437da23ad5a13f")
 .asString();
</code></pre>

I would like to send a post form with java on a website. I came up with this, but I dont what to do next or if this is even the right way.

<pre><code>URL url = new URL("http://127.0.0.1");
URLConnection conn=url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(data);
</code></pre>

the post form looks like this.

<pre><code>&lt;form action="prikaz4.php" method="post"&gt;
 &lt;select name="igralec"/&gt;
 &lt;option value="Kobe Bryant"&gt;Kobe Bryant&lt;/option&gt;
 &lt;option value="Dwayne Wade"&gt;Dwayne Wade&lt;/option&gt;
 &lt;input type="submit" /&gt;
&lt;/form&gt;
</code></pre>

How to send post form with java?

我想在一个网站上用java发送一个帖子表单。我想出了这个，但我不知道下一步该怎么做，也不知道这是不是正确的方法。URL url = new URL("http://127.0.0.1");URLConnection conn=url.openConnection();conn.setDoOutput(true);Out...

问如何用java发送邮寄表格？
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