con.getInputStream（）在Android项目抛出异常，如何解决？ [英] con.getInputStream() throw exception in Android project, how to fix?

问题描述

结果
con.getInputStream（）抛出异常，当运行在Android上的code，
但复制code到常规的Java项目是工作的时候，结果
抛出的对象E含有detailMessage =权限被拒绝。
我的code：

con.getInputStream() throw exception, when the code running on android, but when copy the code to regular java project it is working,
The thrown object e contain "detailMessage = Permission denied". my code::

            public static HttpData get(String sUrl) {
                HttpData ret = new HttpData();
                String str;
                StringBuffer buff = new StringBuffer();
                try {
                        URL url = new URL(sUrl);
                        URLConnection con = url.openConnection();
                        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
                        while ((str = in.readLine()) != null) {
                                buff.append(str);
                        }
                        ret.content = buff.toString();

                        //get headers
                        Map<String, List<String>> headers = con.getHeaderFields();
                        Set<Entry<String, List<String>>> hKeys = headers.entrySet();
                        for (Iterator<Entry<String, List<String>>> i = hKeys.iterator(); i.hasNext();) {
                                Entry<String, List<String>> m = i.next();

                                Log.w("HEADER_KEY", m.getKey() + "");
                                ret.headers.put(m.getKey(), m.getValue().toString());
                                if (m.getKey().equals("set-cookie"))
                                ret.cookies.put(m.getKey(), m.getValue().toString());
                        }
                } catch (Exception e) {
                        Log.e("HttpRequest", e.toString());
                }
                return ret;
        }

推荐答案

添加＆LT;使用许可权的android：NAME =android.permission.INTERNET对/＆GT; 标记体现
将解决这个问题。
由于JEMS评论。

adding<uses-permission android:name="android.permission.INTERNET"/> tag to manifest will fix the problem. Thanks to Jems comment.

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