java的磁盘IO类太多,搞不清楚,先记着。
===============保存json字符串到磁盘=================
FileOutputStream fos = null;;
try {
fos = new FileOutputStream("E:\\Demo\\workspace\\mjjavaworkspace\\test\\b.json");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
OutputStreamWriter ow = new OutputStreamWriter(fos, "utf-8");
ow.write( battleInfoArray.toString());
ow.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
=============从磁盘恢复json字符串======================================
FileInputStream fis = null;
try {
fis = new FileInputStream("E:\\Demo\\workspace\\mjjavaworkspace\\test\\b.json");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
BufferedReader reader = null;
String jsonString = null;
try {
reader = new BufferedReader( new InputStreamReader(fis, "utf-8"));
jsonString = reader.readLine();
System.out.println( jsonString );
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JSONTokener jsonToken = new JSONTokener(jsonString);
JSONArray jArray = new JSONArray(jsonToken);
System.out.print(jArray.toString());