Android通过http方式获取JSON字符串并解析的注意事项(乱码,小黑框)

Android通过http方式获取JSON字符串并解析的注意事项(乱码,小黑框)

在windows平台下换行符是 /r/n ,而在linux,android平台下换行符是 /n   ,所以取得的JSON字符串必须进行过滤,将/r/n替换成/n,

另外不建议使用 BasicResponseHandler() ,这样会导致乱码

两个重要函数:

public static String get(String urlString)  {
        
        /*try{
            HttpGet request = new HttpGet(urlString);
            String result=getHttpClient().execute(request,new BasicResponseHandler());
            return result;
        }catch(IOException e){
            throw e;
        }*/
        
        String result="";
        BufferedReader in=null;
        try {
            HttpClient client = new DefaultHttpClient();
            HttpGet request=new HttpGet(urlString);
            HttpResponse response = client.execute(request);
            
            in=new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
            StringBuffer sb=new StringBuffer("");
            String line="";
            String NL=System.getProperty("line.separator");
           // String NL="";
            while((line=in.readLine())!=null){
                sb.append(line+NL);
            }
            in.close();
            result=sb.toString();
            result=JsonFilter(result);
        } 
        catch (Exception e) {
            e.printStackTrace();
        }
        finally{
            if(in!=null){
                try{
                    in.close();
                }catch(IOException e){
                    e.printStackTrace();
                }
            }
        }
        return result;      
    }
    
    /*
     * 对json字符串进行过滤,防止乱码和黑框
     */
    public static String JsonFilter(String jsonstr){
        return jsonstr.substring(jsonstr.indexOf("{")).replace("\r\n","\n"); 
    }