输出菱形(CSharp)

package auto;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;

public class AutoPost {

public static void autoPost(String surl) throws IOException {
URL url = new URL(surl);
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream(),
"UTF-8");
out.write("username=oscar999&password=");
out.flush();
out.close();

StringBuffer sTotalStrbuf = new StringBuffer();
String sLine = "";
InputStream instream = conn.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(
instream));
while ((sLine = reader.readLine()) != null) {
sTotalStrbuf.append(sLine);
}
System.out.println(sTotalStrbuf.toString());

}

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String surl = "http://www.open-open.com/doc/members/login";
try {
autoPost(surl);
} catch (IOException e) {
e.printStackTrace();
}
}

}

package auto;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

public class AutoPost {

public static void autoPost(String surl, HashMap paraMhm)
throws IOException {
URL url = new URL(surl);
URLConnection conn = url.openConnection();

// set User-Agent, avoid occur 403 error
conn.setRequestProperty("User-Agent",
"Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
conn.setDoOutput(true);
// OutputStreamWriter out = new
// OutputStreamWriter(conn.getOutputStream(),
// "UTF-8");
OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream(),
"GB2312");
StringBuffer sParameterStr = new StringBuffer("?");
if (paraMhm != null && paraMhm.size() > 0) {
Iterator it = paraMhm.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String sKey = (String) entry.getKey();
String sValue = (String) entry.getValue();
sParameterStr.append(sKey);
sParameterStr.append("=");
sParameterStr.append(sValue);
sParameterStr.append("&");
}
// delete the last &
sParameterStr.deleteCharAt(sParameterStr.length() - 1);
}
out.write(sParameterStr.toString());

out.flush();
out.close();

StringBuffer sTotalStrbuf = new StringBuffer();
String sLine = "";
InputStream instream = conn.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(
instream));
while ((sLine = reader.readLine()) != null) {
sTotalStrbuf.append(sLine);
}
System.out.println(sTotalStrbuf.toString());

}

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
// String surl = "http://www.open-open.com/doc/members/login";
HashMap<String, String> paraHashMap = new HashMap<String, String>();
// String surl = "http://passport.csdn.net/account/login";
// paraHashMap.put("u", "oscar999");
// paraHashMap.put("p", "");

// String surl = "http://www.open-open.com/home/index.php";
// paraHashMap.put("username", "oscar999");
// paraHashMap.put("password", "");

String surl = "http://www.e-works.com.cn/comm/ewk_business/usercenter/userlogin_comm.aspx";
paraHashMap.put("tboxUserName", "oscar999");
paraHashMap.put("tboxPwd", "");

try {
autoPost(surl, paraHashMap);
} catch (IOException e) {
e.printStackTrace();
}
}

}