httpclient 創建

/**
     * 創建HttpClient實例    , 並返回請求信息。
     * @param url
     * @return
     * @throws Exception
     */
    public String createHttpClient(String url) throws Exception{
        // 創建HttpClient實例     
        HttpClient httpclient = new DefaultHttpClient();  
        // 創建Get方法實例     
        HttpGet httpgets = new HttpGet(url);   
        HttpResponse response = httpclient.execute(httpgets);    
        HttpEntity entity = response.getEntity();    
        String str = "";
        if (entity != null) {    
            InputStream instreams = entity.getContent();    
            str = convertStreamToString(instreams);  
            System.out.println(str);  
            httpgets.abort();    
        }  
        return str;
    }
    
    /**
     * 讀取流
     * @param is
     * @return
     */
    public String convertStreamToString(InputStream is) {      
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));      
        StringBuilder sb = new StringBuilder();      
       
        String line = null;      
        try {      
            while ((line = reader.readLine()) != null) {  
                sb.append(line + "\n");      
            }      
        } catch (IOException e) {      
            e.printStackTrace();      
        } finally {      
            try {      
                is.close();      
            } catch (IOException e) {      
               e.printStackTrace();      
            }      
        }      
        return sb.toString();      

    }

@Test
    public void testSaveCusIdea(){
        String url = "";
        try {

            // URLEncoder.encode("參數內容","編碼格式") 如果不把參數轉換編碼，瀏覽器就無法讀取。

            // java.lang.IllegalArgumentException     at java.net.URI.create(URI.java:842)  錯誤信息

            url = "http://www.xuanque.net/idea/saveCusIdea?param="+URLEncoder.encode("{idea:'意見內容',cid:'',email:'[email protected]'}","UTF-8");
        } catch (UnsupportedEncodingException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        try {
            String resStr = createHttpClient(url);
            System.out.println(resStr);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }