import java.io.*;
import java.text.ParseException;
import org.json.*;
/**
* 从json文件读取数据，形成JSon对象，读取对象数据并打印
*/
public class JSonParser {
public static void main(String[] args) {
//从JSon文件读取数据
StringBuffer stringBuffer = new StringBuffer();
String line = null ;
try {
BufferedReader br = new BufferedReader(new FileReader(new File("json.txt")));
while( (line = br.readLine())!= null ){
stringBuffer.append(line);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
//将Json文件数据形成JSONObject对象
JSONObject jsonObject = new JSONObject(stringBuffer.toString());
//获取JSONObject对象数据并打印
JSONArray provinces = jsonObject.getJSONArray("provinces") ;
String name = null ;
StringBuffer jsonFileInfo = new StringBuffer();
JSONArray citys = null ;
for (int i = 0; i < provinces.length(); i++) {
name = provinces.getJSONObject(i).getString("name");
jsonFileInfo.append("/nname:" + name + "/n" + "citys:");
citys = provinces.getJSONObject(i).getJSONArray("citys");
for (int j = 0; j < citys.length(); j++) {
jsonFileInfo.append(citys.getString(j)+"/t");
}
}
System.out.println(jsonFileInfo);
} catch (ParseException e) {
e.printStackTrace();
}
}
}
