Question

如何将下面c#代码转JAVA

如何将下列代码转换成JAVA语言StringBuilder ret = new StringBuilder(500);HttpWebResponse response = null;Uri uri = new Uri(url);HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);request.Headers.Add("Accept-Language: zh-cn");request.Timeout = TIMEOUT;request.AllowAutoRedirect = true;request.CookieContainer = _cookieCon;if (!string.IsNullOrEmpty(param)){request.Method = "POST";request.ContentType = "application/x-www-form-urlencoded";string temp = this.EncodeParams(param, System.Text.Encoding.Default);byte[] bytes = Encoding.UTF8.GetBytes(temp);request.ContentLength = bytes.Length;Stream rspStream = request.GetRequestStream();rspStream.Write(bytes, 0, bytes.Length);rspStream.Close();}response = (HttpWebResponse)(request.GetResponse());Stream stream = response.GetResponseStream();using (StreamReader sr = new StreamReader(stream, System.Text.Encoding.Default)){

Answer 1

C#模拟post提交数据；
以下为java模拟post提交数据
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
public class SendPostMessage {

private HttpURLConnection conn = null;
//传递url，map集合[map.put("name","cat")]
public boolean send(String urlAddr, Map map) throws Exception {

boolean isSuccess = false;
StringBuffer params = new StringBuffer();

Iterator it = map.entrySet().iterator();
while(it.hasNext()){
Entry element = (Entry)it.next();
params.append(element.getKey());
params.append("=");
params.append(element.getValue());
params.append("&");
}

if(params.length() > 0){
params.deleteCharAt(params.length()-1);
}

try{
URL url = new URL(urlAddr);
conn = (HttpURLConnection)url.openConnection();

conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setUseCaches(false);
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setRequestProperty("Content-Length", String.valueOf(params.length()));
conn.setDoInput(true);
conn.connect();

OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
out.write(params.toString());
out.flush();
out.close();

int code = conn.getResponseCode();
if (code != 200) {
System.out.println("ERROR===" + code);
} else {
isSuccess = true;
System.out.println("Success!");
}
}catch(Exception ex){
ex.printStackTrace();
}finally{
conn.disconnect();
}
return isSuccess;
}
}

Answer 2

一楼的已经很详细了，我就不赘述了