private static String ConvertStream2Json(InputStream inputStream)
    {

        String jsonStr = “”;
        // ByteArrayOutputStream相当于内存输出流
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int len = 0;
        // 将输入流转移到内存输出流中
        try
        {

            while ((len = inputStream.read(buffer, 0, buffer.length)) != -1)
            {

                out.write(buffer, 0, len);
            }
            // 将内存流转换为字符串
            jsonStr = new String(out.toByteArray());
        }
        catch (IOException e)
        {

            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return jsonStr;
    }
}


2、使用泛型获取javaBean
（核心函数）


 

 

 

 
public static T getPerson(String jsonString, Class cls) {

        T t = null;
        try {

            t = JSON.parseObject(jsonString, cls);
        } catch (Exception e) {

            // TODO: handle exception
        }
        return t;
    }
public static List getPersons(String jsonString, Class cls) {

        List list = new ArrayList();
        try {

            list = JSON.parseArray(jsonString, cls);
        } catch (Exception e) {

        }
        return list;
    }
public static List