java 一個簡單的無需第三方包的獲取網頁內容的代碼

直接用 Java 自帶的包搞定，無需其他第三方jar包

[Java]代碼

public static String fetch_url(String url) throws IOException {  
    BufferedReader bis = null;  
    InputStream is = null;  
    try {  
        URLConnection connection = new URL(url).openConnection();  
        is = connection.getInputStream();  
        // warning of UTF-8 data  
        bis = new BufferedReader(new InputStreamReader(is, "UTF-8"));  
        String line = null;  
        StringBuffer result = new StringBuffer();  
        while ((line = bis.readLine()) != null) {  
            result.append(line);  
        }  
        return result.toString();  
    } finally {  
        if (bis != null) {  
            try {  
                bis.close();  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
        if (is != null) {  
            try {  
                is.close();  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
    }  
}