需求：用户登录（name:用户名，pwd:密码）
（一）HttpGet :doGet()方法
//doGet():将参数的键值对附加在url后面来传递
public String getResultForHttpGet(String name,String pwd) throws ClientProtocolException, IOException{
//服务器 ：服务器项目 ：servlet名称
String path="http://192.168.5.21:8080/test/test";
String uri=path+"?name="+name+"&pwd="+pwd;
//name:服务器端的用户名，pwd:服务器端的密码
//注意字符串连接时不能带空格
String result="";
HttpGet httpGet=new HttpGet(uri);
HttpResponse response=new DefaultHttpClient().execute(httpGet);
if(response.getStatusLine().getStatusCode()==200){
HttpEntity entity=response.getEntity();
result=EntityUtils.toString(entity, HTTP.UTF_8);
}
return result;
}
（二）HttpPost ：doPost()方法
//doPost():将参数打包到http报头中传递
public String getReultForHttpPost(String name,String pwd) throws ClientProtocolException, IOException{
//服务器 ：服务器项目 ：servlet名称
String path="http://192.168.5.21:8080/test/test";
HttpPost httpPost=new HttpPost(path);
List<NameValuePair>list=new ArrayList<NameValuePair>();
list.add(new BasicNameValuePair("name", name));
list.add(new BasicNameValuePair("pwd", pwd));
httpPost.setEntity(new UrlEncodedFormEntity(list,HTTP.UTF_8));
String result="";
HttpResponse response=new DefaultHttpClient().execute(httpPost);
if(response.getStatusLine().getStatusCode()==200){
HttpEntity entity=response.getEntity();
result=EntityUtils.toString(entity, HTTP.UTF_8);
}
return result;
}