2023年3月9日16:19:22

src/main/java/com/zhangmeng/tools/controller/HttpDownLoadController.java

@@ -57,6 +57,8 @@ public class HttpDownLoadController {
 
     private final SimpleObjectProperty<File> file_target = new SimpleObjectProperty<>();
 
+    private static final int DEFAULT_BUFFER_SIZE = 8192;
+
     @FXML
     public void initialize() {
 
@@ -83,6 +85,8 @@ public class HttpDownLoadController {
                 return;
             }
 
+            download_info.setText(null);
+
             MyService myService = new MyService();
             myService.progressProperty().addListener((observable, oldValue, newValue) -> {
                 if (newValue.doubleValue() >= 1){
@@ -110,9 +114,9 @@ public class HttpDownLoadController {
 
         @Override
         protected Task<Number> createTask() {
-            return new Task<Number>() {
+            return new Task<>() {
                 @Override
-                protected Number call(){
+                protected Number call() {
                     int size = 0;
                     try {
                         URL url1 = new URL(url.getText());
@@ -121,10 +125,9 @@ public class HttpDownLoadController {
                         if (size < 0) {
                             download_info.appendText("无法获取文件大小。");
                             download_info.appendText(System.lineSeparator());
-                        }else{
-                            download_info.appendText("文件大小为：" + size + " bytes");
+                        } else {
+                            download_info.appendText("文件大小为：" + FileUtil.readableFileSize(size));
                             download_info.appendText(System.lineSeparator());
-
                             String fileName;
                             final String path = url.getText();
                             // 从路径中获取文件名
@@ -134,34 +137,21 @@ public class HttpDownLoadController {
                                 fileName = URLUtil.encodeQuery(path, CharsetUtil.CHARSET_UTF_8);
                             }
                             String pathText = download_path.getText();
-
                             InputStream fis = conn.getInputStream();
-                            int max = size;
-
                             FileOutputStream fos = new FileOutputStream(new File(pathText + "/" + fileName));
-
-                            byte[] bytes = new byte[100000];
-
-                            int i = 0;
-
-                            double sum = 0 ;
-
+                            byte[] bytes = new byte[DEFAULT_BUFFER_SIZE];
+                            int i;
+                            double sum = 0;
                             double progress = 0;
                             this.updateMessage("开始下载:-------->" + pathText + "/" + fileName);
-                            while ((i = fis.read(bytes, 0, bytes.length)) != -1) {
-
-                                if (this.isCancelled()){
+                            while ((i = fis.read(bytes, 0, DEFAULT_BUFFER_SIZE)) != -1) {
+                                if (this.isCancelled()) {
                                     break;
                                 }
-
-                                fos.write(bytes,0,i);
-
+                                fos.write(bytes, 0, i);
                                 sum = sum + i;
-
-                                this.updateProgress(sum,max);
-
-                                progress  = sum /max;
-
+                                this.updateProgress(sum, size);
+                                progress = sum / size;
                                 this.updateMessage("已下载:" + FileUtil.readableFileSize((long) sum));
                             }
 

src/main/java/com/zhangmeng/tools/utils/ResourcesUtils.java

@@ -25,6 +25,8 @@
 
 package com.zhangmeng.tools.utils;
 
+import javafx.scene.image.Image;
+
 import java.net.URL;
 
 /**
@@ -41,6 +43,10 @@ public class ResourcesUtils {
         return ResourcesUtils.class.getResource(path);
     }
 
+    public static Image getBg(){
+       return new Image(ImagePath.path(ImagePath.ImagePathType.BACKGROUND_IMAGE));
+    }
+
     public enum Menu{
         Md5("md5加密",0),
         SpringSecurity("spring加密",1);