请求android开发，http工具类

andr o id开发 http工具类public static HttpClient httpClient=new DefaultHttpClient();public static final String BASE_URL=

*get请求

*@param url

*发送请求的URL

*@r eturn服务器响应字符串

*@throw s Exc eptionpublic static String doGet(String url) throws Exc eption{//创建Http Get对象。

HttpGet get=new HttpGet(url);

//发送GET请求

HttpRes pons e httpRes pons e=httpClient.exec ute(get);//如果服务器成功地返回响应if(httpRespons e.getStatus Line().getStatus Code()==200) {//获取服务器响应字符串

HttpEnt ity entity=httpRe s p ons e.getEntity();

InputS tream c ontent=entity.getContent();return c onvertStreamTo String(c ontent);r eturn null;

*p os t请求

*@param url

*发送请求的URL

*@param params

*请求参数

*@r eturn服务器响应字符串

*@throw s Exc eptionpublic static String doPost(String url,Map String,String rawParams)throw s Exc eption{

//创建Http P o st对象。

HttpPost post=new HttpPost(url);

//如果传递参数个数比较多的话可以对传递的参数进行封装List NameValuePair params=new ArrayList NameValuePairfor(String key:rawParams.keySet()) {

//封装请求参数params.add(new BasicNameValuePair(key, rawParams.get(key)));//设置请求参数post.s etEntity(new UrlEnc odedFormEntity(params,utf-8));//发送P O ST请求

HttpRes pons e httpRes pons e=http Client.exec ute(po s t);

//如果服务器成功地返回响应if(httpRespons e.getStatus Line().getStatus Code()==200) {

//获取服务器响应字符串

HttpEnt ity entity=httpRe s p ons e.getEntity();

InputS tream c ontent=entity.getContent();

return c onvertStreamToString(c ontent);r eturn null;

*获取服务器的响应转换为字符串private static String convertStreamToString(InputStream is) {

BufferedReader reader=new BufferedReader(new InputStreamReader(is));StringBuilder sb=new StringBuilder();

String line=null;try{w hile((line=reader.readL ine()) !=null) {sb.append(line);

} catch(IOException e) {e.printStackTrac e();

}final ly{try{is.c lo s e();

} catch(IOException e) {e.printStackTrac e();return sb.toString();