安卓请求jsp返回的数据怎么解析

图片说明
如图,安卓运行截图,如何获得有用数据yes

 很多种方式呀,简单的就是字符串截取处理,
 public static void main(String[] args){
        String html = "<html><body>yes</body></html>";
        int s = html.indexOf("<body>");
        int e = html.indexOf("</body>");
        String str = html.substring(s+"<body>".length(), e);
        System.out.println(str);
    }

更好的做法是通过调用web接口,获得数据。如果一定这么做,可以通过正则表达式或者html解析器进行解析获得数据。

http://my.oschina.net/sjr/blog/126725

你应该返回json数据,而不是html页面数据,解析json就方便多了

<%@page import="java.io.PrintWriter"%>
<%@page import="java.io.OutputStream"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="com.test1.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">



数据请求


<%
String name=request.getParameter("username");
String pass=request.getParameter("password");
String index=new Login().login(name, pass);
out.println(index);
System.out.println(index);
%>

这是我服务端的代码返回源码!我其实只想让他返回index代表的yes

安卓关键源码:
username = name.getText().toString();
password = pass.getText().toString();
// HttpPost连接对象
try {
HttpPost httpRequest = new HttpPost(URL);
// 使用NameValuePair来保存要传递的Post参数
List params = new ArrayList();
// 添加要传递的参数
params.add(new BasicNameValuePair("username", username));
params.add(new BasicNameValuePair("password", password));
Log.v("debug", params.toString());
// 设置字符集
HttpEntity httpentity;
httpentity = new UrlEncodedFormEntity(params, "UTF-8");

                // 请求httpRequest
                httpRequest.setEntity(httpentity);

                // 取得默认的HttpClient
                HttpClient httpclient = new DefaultHttpClient();
                // 取得HttpResponse
                HttpResponse httpResponse = httpclient.execute(httpRequest);
                // HttpStatus.SC_OK表示连接成功
                if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                    // 取得返回的字符串
                    String strResult1 = EntityUtils.toString(
                            httpResponse.getEntity(), "UTF-8");
                    Toast.makeText(MainActivity.this, strResult1, 2).show();
                    Log.v("debug", strResult1);
                }

            } catch (UnsupportedEncodingException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

一般都是通过webservice传递数据,类型一般都是json啦