Java获取Json文件内容（url方式、本地方式）

拼搏现实的明天。 2022-01-27 09:47 570阅读 0赞

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;
        }

原文：[https://blog.csdn.net/DreamWeaver\_zhou/article/details/80283362][https_blog.csdn.net_DreamWeaver_zhou_article_details_80283362]

[https_blog.csdn.net_DreamWeaver_zhou_article_details_80283362]: https://blog.csdn.net/DreamWeaver_zhou/article/details/80283362