java 获取json对象 java获取json数据

1.url方式

/**
     * 通过网络访问json并读取文件
     * @param url:http://127.0.0.1:80/dashboard/dept_uuid.json
     * @return:json文件的内容
     */
    public static String loadJson (String url) {  
        StringBuilder json = new StringBuilder();  
        try {  
            URL urlObject = new URL(url);  
            URLConnection uc = urlObject.openConnection();  
            BufferedReader in = new BufferedReader(new InputStreamReader(uc.getInputStream(),"UTF-8"));  
            String inputLine = null;  
            while ( (inputLine = in.readLine()) != null) {  
                json.append(inputLine);  
            }  
            in.close();  
        } catch (MalformedURLException e) {  
            e.printStackTrace();  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
        return json.toString();  
    }

2.本地文件读取

/**
     * 通过本地文件访问json并读取
     * @param path：E:/svn/05.Hospital/templatedept_uuid.json
     * @return：json文件的内容
     */
    public static String ReadFile(String path){
        String laststr="";
        File file=new File(path);// 打开文件  
        BufferedReader reader=null;
        try{
            FileInputStream in = new FileInputStream(file);
            reader=new BufferedReader(new InputStreamReader(in,"UTF-8"));// 读取文件  
            String tempString=null;
            while((tempString=reader.readLine())!=null){
                laststr=laststr+tempString;
            }
            reader.close();
        }catch(IOException e){
            e.printStackTrace();
        }finally{
            if(reader!=null){
                try{
                    reader.close();
                }catch(IOException el){
                }  
            }  
        }
        return laststr;
    }