1、HttpClient 使用方式
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;
}
}
2、InputStream转为String方法
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 = 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;
}
}