public static String loginByClientGet(String username,String password)    {        try {                        //打开浏览器            HttpClient client = new DefaultHttpClient();                        //输入地址（url）            String url = "http://192.168.1.100:8088/Login.ashx?username="+username+"&password="+password;            HttpGet httpGet = new HttpGet(url);                        //按回车（发请求http get请求）            HttpResponse response = client.execute(httpGet);                        //得到相应码            int code = response.getStatusLine().getStatusCode();                        if(code==200)            {                    //得到相应实体                HttpEntity entity = response.getEntity();                //得到相应内容                InputStream is = entity.getContent();                return StreamUtil.readInputStream(is);            }            else            {                return null;            }                    } catch (Exception e) {            e.printStackTrace();            return null;        }    }            public static String loginByClientPost(String username,String password)    {                try        {            //打开浏览器            HttpClient client = new DefaultHttpClient();                    //输入地址(输入url)             String url = "http://192.168.1.100:8088/Login.ashx";            //使用post请求            HttpPost httpPost = new HttpPost(url);                        //输入指定提交的数据实体            List<NameValuePair> params = new ArrayList<NameValuePair>();            params.add(new BasicNameValuePair("username", username));            params.add(new BasicNameValuePair("password", password));            httpPost.setEntity(new UrlEncodedFormEntity(params));                        //得到相应            HttpResponse response = client.execute(httpPost);                        //得到响应码            int code = response.getStatusLine().getStatusCode();            if(code==200)            {                //得到相应内容                InputStream is = response.getEntity().getContent();                return StreamUtil.readInputStream(is);            }            else            {                return null;            }        }        catch(Exception ex)        {            ex.printStackTrace();            return null;        }    }

package com.example.getserverdata.utils;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;public class StreamUtil {        public static String readInputStream(InputStream is)    {        ByteArrayOutputStream baos = new ByteArrayOutputStream();          byte[] data = http://www.mamicode.com/new byte[1024];          int len = 0;          try {            while((len = is.read(data))!=-1)                  baos.write(data, 0, len);            is.close();            baos.close();            return new String(baos.toByteArray());                    } catch (Exception e) {                    e.printStackTrace();        }                    return null;    }}