java 读取本地json文件

参考 https://www.cnblogs.com/wkfvawl/p/11876107.html 

 

maven依赖

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<dependency>        <groupId>com.alibaba</groupId>        <artifactId>fastjson</artifactId>        <version>1.2.47</version> </dependency>

　　

读取json的方法

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//读取json文件     public String readJsonFile(String Filename #传文件的路径) {         String jsonStr = "";         try {             File jsonFile = new File(Filename);             FileReader fileReader = new FileReader(jsonFile);             Reader reader = new InputStreamReader(new FileInputStream(jsonFile),"utf-8");             int ch = 0;             StringBuffer sb = new StringBuffer();             while ((ch = reader.read()) != -1) {                 sb.append((char) ch);             }             fileReader.close();             reader.close();             jsonStr = sb.toString(); //            System.out.println(jsonStr.getClass().getName());             return jsonStr;         } catch (IOException e) {             e.printStackTrace();             return null;         }

 

获取项目文件相对路径的方法见: https://www.cnblogs.com/kaibindirver/p/15797181.html