[英]run as .jar results in a different view
我編寫了一個程序,使用Areachart顯示波形。當我編譯並運行它時,它看起來就像下面的樣子。當我執行.jar文件時,我得到了一個完全不同的波形視圖。
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.animation.AnimationTimer;
import javafx.animation.Timeline;
import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.scene.Scene;
import javafx.scene.chart.AreaChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart.Data;
import javafx.scene.chart.XYChart.Series;
import javafx.stage.Stage;
public class AreaChartSample extends Application {
private static final int MAX_DATA_POINTS = 500;
private Series series;
private int xSeriesData = 0;
private ConcurrentLinkedQueue<Number> dataQ = new ConcurrentLinkedQueue<>();
private ExecutorService executor;
private AddToQueue addToQueue;
private Timeline timeline2;
private NumberAxis xAxis;
private int time_counter=0;
private int [] data_array=null;
private void init(Stage primaryStage) {
String line,full_text="";
try {
BufferedReader in = new BufferedReader(new FileReader("C:/testvideo/test.txt"));
while((line=in.readLine())!= null)
{
full_text+=line;
}
data_array=new int[full_text.length()];
for(int i=0;i<full_text.length();i++)
{
data_array[i]=((int)(full_text.charAt(i)))-127;
// data_array[i]=((int)(full_text.charAt(i)))-300;
}
} catch (Exception e) {
}
xAxis = new NumberAxis(0,MAX_DATA_POINTS,MAX_DATA_POINTS/10);
xAxis.setForceZeroInRange(false);
xAxis.setAutoRanging(false);
NumberAxis yAxis = new NumberAxis(-127,127,1);
yAxis.setAutoRanging(false);
//-- Chart
final AreaChart<Number, Number> sc = new AreaChart<Number, Number>(xAxis, yAxis) {
// Override to remove symbols on each data point
@Override protected void dataItemAdded(Series<Number, Number> series, int itemIndex, Data<Number, Number> item) {}
};
sc.setAnimated(false);
sc.setId("liveAreaChart");
sc.setTitle("Animated Area Chart");
//-- Chart Series
series = new AreaChart.Series<Number, Number>();
series.setName("Area Chart Series");
sc.getData().add(series);
primaryStage.setScene(new Scene(sc));
}
@Override public void start(Stage primaryStage) throws Exception {
init(primaryStage);
primaryStage.show();
//-- Prepare Executor Services
executor = Executors.newCachedThreadPool();
addToQueue = new AddToQueue();
executor.execute(addToQueue);
//-- Prepare Timeline
prepareTimeline();
primaryStage.setOnCloseRequest(e -> {
executor.shutdown();
});
}
public static void main(String[] args) {
launch(args);
}
private class AddToQueue implements Runnable {
public void run() {
try {
// add a item of random data to queue
dataQ.add(data_array[time_counter]);
time_counter+=100;
Thread.sleep(10);
executor.execute(this);
} catch (InterruptedException ex) {
Logger.getLogger(AreaChartSample.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
//-- Timeline gets called in the JavaFX Main thread
private void prepareTimeline() {
// Every frame to take any data from queue and add to chart
new AnimationTimer() {
@Override public void handle(long now) {
addDataToSeries();
}
}.start();
}
private void addDataToSeries() {
for (int i = 0; i < 20; i++) { //-- add 20 numbers to the plot+
if (dataQ.isEmpty()) break;
Number y=dataQ.remove();
series.getData().add(new AreaChart.Data(xSeriesData++, y));
// System.out.println(y);
}
// remove points to keep us at no more than MAX_DATA_POINTS
if (series.getData().size() > MAX_DATA_POINTS) {
series.getData().remove(0, series.getData().size() - MAX_DATA_POINTS);
}
// update
xAxis.setLowerBound(xSeriesData-MAX_DATA_POINTS);
xAxis.setUpperBound(xSeriesData-1);
}
}
當我剛運行它=>
當我執行build .jar文件時(Windows 7 64位-> java8)
我完全不知道為什么會發生這種情況。
更新:這是test.txt: http : //expirebox.com/download/bf9be466e23c4c3d8f73f094f261dfbe.html
更新2
好的,它必須與文件的讀取有關。當我更改時
data_array[i]=((int)(full_text.charAt(i)))-127;
至
data_array[i]=data_array[i]=((int)('f'))-127;
在兩個“版本”中都相同。
還有另一種方法可以雙向正確讀取嗎?也許與UTF8有關?
這成功了。 謝謝!
String fileName = "C:/testvideo/test.txt";
FileInputStream is = new FileInputStream(fileName);
InputStreamReader isr = new InputStreamReader(is, "UTF-8");
BufferedReader in = new BufferedReader(isr);
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.