Question

如何在java中阅读这种文本文件，请帮忙... 这个文本文件用作我的java程序的模板我试图读取这个文件它显示文本文件中的任何内容，但我想放置那些{0} ...哪个java内容。

Q799,B080+000
q831
rN
S4
D7
ZT
JF
OD,P
R24,0
N

X555,56,2,780,714
A771,73,1,1,2,1,N,"A  {0}"
A742,70,1,1,2,2,N,"   {1}({31})"
A765,450,1,1,2,2,N,"SCREEN-{38}"
A706,86,1,2,1,1,N,"Adm   :Rs.{6}"
A682,86,1,2,1,1,N,"E.TAX :Rs.{28}"

Answer 1

在这里尝试以下代码：

Object obj = parser.parse(new FileReader("D:\\CountryJSONFile.json")); 
HashMap<String, String> map = new HashMap<String, String>();  
JSONObject jsonObject = (JSONObject)obj;
Iterator<?> keys = jsonObject .keys();

while( keys.hasNext() ){
    String key = (String)keys.next();
    String value = jsonObject.getString(key); 
    map.put(key, value);
}

Answer 2

考虑使用Maps来存储键值对而不是数组： -

HashMap<String,String> jsonMap = new HashMap<String,String>();
jsonMap.put("Name",(String) jsonObject.get("Name"));
jsonMap.put("ShowTime",(String) jsonObject.get("ShowTime"));
jsonMap.put("Total",(String) jsonObject.get("Total"));

Answer 3

private String readFile(String folder, String file) {
    logger.info("Read file ...");
    Stream<String> lines = null;
    try {
      lines = Files.lines(Paths.get(folder, file));
    } catch (IOException e) {
      e.printStackTrace();
    }
    String txt = lines.map(Object::toString).collect(Collectors.joining(""));
    lines.close();
    logger.info("File is ready");
    return txt;
  }


private User jsonToProductTypes(String json){
    Gson gson = new Gson();
    return  gson.fromJson(json, User.class);
  }


User is a class with the same structure as the json 
User can contain other objects , after you have a java object you can do what ever you want

如何在java中阅读这种文本文件

3 个答案: