增加电子书

pom.xml

@@ -251,6 +251,12 @@
 			<version>20.0</version>
 		</dependency>
 
+		<dependency>
+			<groupId>org.yaml</groupId>
+			<artifactId>snakeyaml</artifactId>
+			<version>1.19</version>
+		</dependency>
+
 	</dependencies>
 
 

src/main/java/org/byron4j/cookbook/javacore/anno/jsr250/PostConstructDemo.java

@@ -0,0 +1,24 @@
+package org.byron4j.cookbook.javacore.anno.jsr250;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import javax.annotation.PostConstruct;
+
+@Setter
+@Getter
+@ToString
+public class PostConstructDemo {
+
+    private int age;
+
+    @PostConstruct
+    public void setAge(){
+        age = 10;
+    }
+
+    public static void main(String[] args){
+        System.out.println(new PostConstructDemo());
+    }
+}

src/main/java/org/byron4j/cookbook/javacore/dynamicproxy/cglibproxy/CglibProxy.java

@@ -32,7 +32,9 @@ public Object intercept(Object o, Method method, Object[] args, MethodProxy meth
 
     public static void main(String[] args){
         CglibProxy cglibProxy = new CglibProxy();
-        BookStore instance = (BookStore)cglibProxy.getInstance(new BookStore());
+        Object obj = cglibProxy.getInstance(new BookStore());
+        System.out.println("cglib代理出来的对象：" + obj);
+        BookStore instance = (BookStore)obj;
         instance.buyBook();
     }
 }

src/main/java/org/byron4j/cookbook/javacore/dynamicproxy/jdkproxy/JDKDynamicProxy.java

@@ -18,7 +18,7 @@ public class JDKDynamicProxy implements InvocationHandler {
 
     @Override
     public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
-        System.out.println("=================================================\n查看代理类:" + proxy.getClass().getName());
+        System.out.println("=================================================\n查看代理类:" + proxy.getClass().toGenericString());
 
         Object invoke = null;
 

src/main/java/org/byron4j/cookbook/javacore/dynamicproxy/jdkproxy/MyInterceptor.java

@@ -0,0 +1,49 @@
+package org.byron4j.cookbook.javacore.dynamicproxy.jdkproxy;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 通用模拟AOP环绕JDK动态代理工具类
+ * @param <T>
+ */
+public class MyInterceptor<T> implements InvocationHandler {
+
+    private T t;
+
+    public MyInterceptor(T t) {
+        this.t = t;
+    }
+
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+        System.out.println("before method call : " + method.getName());
+        Object result = method.invoke(t, args);
+        System.out.println("after method call : " + method.getName());
+        return result;
+    }
+
+    @SuppressWarnings("unchecked")
+    public static <T> T getProxy(T t, Class<? super T> interfaceType) {
+        MyInterceptor handler = new MyInterceptor(t);
+        return (T) Proxy.newProxyInstance(interfaceType.getClassLoader(),
+                new Class<?>[]{interfaceType}, handler
+        );
+    }
+
+
+    /**
+     * 测试
+     * @param args
+     */
+    public static void main(String[] args) {
+        List<String> list = MyInterceptor.getProxy(new ArrayList<>(), List.class);
+        list.add("one");
+        list.add("two");
+        System.out.println(list);
+        list.remove("one");
+    }
+}

src/main/java/org/byron4j/cookbook/javacore/http/BasicHttpServerExample.java

@@ -0,0 +1,26 @@
+package org.byron4j.cookbook.javacore.http;
+
+import com.sun.net.httpserver.HttpContext;
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpServer;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.InetSocketAddress;
+
+public class BasicHttpServerExample {
+    public static void main(String[] args) throws IOException {
+        HttpServer server = HttpServer.create(new InetSocketAddress(8500), 0);
+        HttpContext context = server.createContext("/");
+        context.setHandler(BasicHttpServerExample::handleRequest);
+        server.start();
+    }
+
+    private static void handleRequest(HttpExchange exchange) throws IOException {
+        String response = "Hi there!";
+        exchange.sendResponseHeaders(200, response.getBytes().length);//response code and length
+        OutputStream os = exchange.getResponseBody();
+        os.write(response.getBytes());
+        os.close();
+    }
+}

src/main/java/org/byron4j/cookbook/javacore/http/BasicHttpServerExample2.java

@@ -0,0 +1,49 @@
+package org.byron4j.cookbook.javacore.http;
+
+import com.sun.net.httpserver.*;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.InetSocketAddress;
+import java.net.URI;
+
+/**
+ * org.springframework.remoting.jaxws.SimpleHttpServerJaxWsServiceExporter#buildHttpContext(javax.xml.ws.Endpoint, java.lang.String)
+ */
+public class BasicHttpServerExample2 {
+    public static void main(String[] args) throws IOException {
+        HttpServer server = HttpServer.create(new InetSocketAddress(8500), 0);
+        HttpContext context = server.createContext("/example");
+        context.setHandler(BasicHttpServerExample2::handleRequest);
+        server.start();
+    }
+
+    private static void handleRequest(HttpExchange exchange) throws IOException {
+        URI requestURI = exchange.getRequestURI();
+        printRequestInfo(exchange);
+        String response = "This is the response at " + requestURI;
+        exchange.sendResponseHeaders(200, response.getBytes().length);
+        OutputStream os = exchange.getResponseBody();
+        os.write(response.getBytes());
+        os.close();
+    }
+
+    private static void printRequestInfo(HttpExchange exchange) {
+        System.out.println("-- headers --");
+        Headers requestHeaders = exchange.getRequestHeaders();
+        requestHeaders.entrySet().forEach(System.out::println);
+
+        System.out.println("-- principle --");
+        HttpPrincipal principal = exchange.getPrincipal();
+        System.out.println(principal);
+
+        System.out.println("-- HTTP method --");
+        String requestMethod = exchange.getRequestMethod();
+        System.out.println(requestMethod);
+
+        System.out.println("-- query --");
+        URI requestURI = exchange.getRequestURI();
+        String query = requestURI.getQuery();
+        System.out.println(query);
+    }
+}

src/main/java/org/byron4j/cookbook/javacore/log/ch1/MyClass.java

@@ -0,0 +1,24 @@
+package org.byron4j.cookbook.javacore.log.ch1;
+
+import java.util.logging.Logger;
+
+/**
+ * JCL:java.util.logging.Logger
+ */
+public class MyClass {
+    private static Logger LOGGER ;
+
+    static {
+
+        System.setProperty("java.util.logging.config.file", "F:\\217my_optLogs\\001系统相关\\系统设计\\007\\CookBook\\src\\main\\resources\\logging.properties");
+
+        //must initialize loggers after setting above property
+        LOGGER = Logger.getLogger(MyClass.class.getName());
+    }
+
+    public static void main(String[] args) {
+        System.out.println("main method starts");
+        LOGGER.info("info msg");
+        LOGGER.warning("warning msg");
+    }
+}

src/main/java/org/byron4j/cookbook/javacore/spi/DefaultView.java

@@ -0,0 +1,27 @@
+package org.byron4j.cookbook.javacore.spi;
+
+import javafx.geometry.Insets;
+import javafx.scene.Node;
+import javafx.scene.control.Label;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.HBox;
+
+public class DefaultView implements View {
+    @Override
+    public String getName() {
+        return "Default View";
+    }
+
+    @Override
+    public Node getView() {
+        Label label = new Label("The label");
+        label.setPadding(new Insets(5, 10, 0, 0));
+        TextField text = new TextField();
+
+        HBox hbox = new HBox();
+        hbox.setPadding(new Insets(50, 50, 50, 50));
+        hbox.getChildren().add(label);
+        hbox.getChildren().add(text);
+        return hbox;
+    }
+}

src/main/java/org/byron4j/cookbook/javacore/spi/UiApplication.java

@@ -0,0 +1,75 @@
+package org.byron4j.cookbook.javacore.spi;
+
+import javafx.application.Application;
+import javafx.geometry.Rectangle2D;
+import javafx.scene.Group;
+import javafx.scene.Scene;
+import javafx.scene.control.*;
+import javafx.scene.layout.BorderPane;
+import javafx.stage.Screen;
+import javafx.stage.Stage;
+
+import java.util.ServiceLoader;
+
+public class UiApplication extends Application {
+
+    private ServiceLoader<View> views;
+    private BorderPane mainBorderPane;
+
+    @Override
+    public void init() {
+        loadViews();
+
+    }
+
+    private void loadViews() {
+        views = ServiceLoader.load(View.class);
+    }
+
+    @Override
+    public void start(Stage stage) throws Exception {
+        Screen screen = Screen.getPrimary();
+        Rectangle2D bounds = screen.getVisualBounds();
+
+        stage.setX(bounds.getMinX());
+        stage.setY(bounds.getMinY());
+        stage.setWidth(bounds.getWidth());
+        stage.setHeight(bounds.getHeight());
+        stage.setTitle("Ui Application");
+
+        mainBorderPane = new BorderPane();
+
+        mainBorderPane.setTop(createMenuBar());
+
+
+        Scene scene = new Scene(new Group());
+        scene.setRoot(mainBorderPane);
+
+        stage.setScene(scene);
+        stage.show();
+    }
+
+    private MenuBar createMenuBar() {
+        MenuBar menuBar = new MenuBar();
+        Menu viewMenu = new Menu("Views");
+        menuBar.getMenus().add(viewMenu);
+
+        ToggleGroup toggleGroup = new ToggleGroup();
+
+        views.forEach(v -> {
+            RadioMenuItem item = new RadioMenuItem(v.getName());
+            item.setToggleGroup(toggleGroup);
+            item.setOnAction(event -> {
+                Label label = new Label(v.getName());
+                mainBorderPane.setLeft(label);
+                mainBorderPane.setCenter(v.getView());
+            });
+            viewMenu.getItems().add(item);
+        });
+        return menuBar;
+    }
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+}

src/main/java/org/byron4j/cookbook/javacore/spi/View.java

@@ -0,0 +1,9 @@
+package org.byron4j.cookbook.javacore.spi;
+
+import javafx.scene.Node;
+
+public interface View {
+    String getName();
+
+    Node getView();
+}

src/main/java/org/byron4j/cookbook/yaml/Yaml1.java

@@ -0,0 +1,30 @@
+package org.byron4j.cookbook.yaml;
+
+import org.yaml.snakeyaml.Yaml;
+
+import java.io.FileInputStream;
+import java.net.URL;
+import java.util.Map;
+
+public class Yaml1 {
+    public static void main(String[] args)  {
+        try {
+            Yaml yaml = new Yaml();
+            URL url = Yaml1.class.getClassLoader().getResource("/application.yml");
+            if (url != null) {
+                //获取test.yaml文件中的配置数据，然后转换为obj，
+                Object obj =yaml.load(new FileInputStream("/application.yml"));
+                System.out.println(obj);
+                //也可以将值转换为Map
+                Map map =(Map)yaml.load(new FileInputStream(url.getFile()));
+                System.out.println(map);
+                //通过map我们取值就可以了.
+
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+
+    }
+}

src/main/resources/META-INF/services/org.byron4j.cookbook.javacore.spi.DefaultView

@@ -0,0 +1 @@
+org.byron4j.cookbook.javacore.spi.DefaultView