URLConnection向指定的url发送请求并且带参数

public String urlHtppServer(String httpUrl,String parmer) throws IOException {
URL url = new URL(httpUrl);

URLConnection connection = url.openConnection();

connection.setDoOutput(true);

OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "utf-8");

out.write(parmer); //这里组织提交信息

out.flush();

out.close();

//获取返回数据
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "utf-8")); //解决返回的数据中文乱码

String line = null;

StringBuffer content= new StringBuffer();

while((line = in.readLine()) != null)
{
//line为返回值，这就可以判断是否成功、
content.append(line);
}
in.close() ;
return content.toString();

}