package com.yqq.loginclient.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
/**
* 连接服务器
*
* @author yqq_coder
*
*/
public class LoginUtils {
public LoginUtils() {
// TODO Auto-generated constructor stub
}
/**
* http://10.1.17.208:8080/LoginService/LoginServlet?userName=Lihua&passWord=123456
* http://localhost:8080/?userName=Lihua&passWord=123456
* @param ip 服务器IP
* @param userName GET方式传递参数用户名
* @param passWord 密码
* @return
*/
public static String connect(String ip, String userName, String passWord) {
String str = "http://" + ip
+ ":8080/LoginService/LoginServlet?userName="+userName+"&passWord="+passWord;
URL url=null;
InputStream inputStream = null;
HttpURLConnection connection = null;
StringBuffer sb = null;// 线程安全
try {
url = new URL(str);//获得URL对象
try {
connection = (HttpURLConnection) url.openConnection();
connection.setConnectTimeout(3000);
connection.setRequestMethod("GET");//GET方式提交参数
connection.setDoOutput(true);//设置可以向服务器读写
connection.setDoInput(true);
//请求成功
if (connection.getResponseCode() == 200) {
inputStream = connection.getInputStream();
Reader reader = new InputStreamReader(inputStream, "UTF-8");
//打包成字符流
BufferedReader bufferedReader = new BufferedReader(reader);
String str1 = null;
sb = new StringBuffer();
while ((str1 = bufferedReader.readLine()) != null) {
sb.append(str1);
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (MalformedURLException e) {
e.printStackTrace();
//关闭流很重要
} finally {
if (inputStream != null) {
try {
inputStream.close();
inputStream = null;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (connection != null) {
connection.disconnect();
connection = null;
}
}
if (sb != null) {
return new String(sb);
}
return "服务器异常！";
}
}
