保存进度！

OnJava/OnJava/src/main/java/org/kane/App.java

@@ -1,5 +1,16 @@
+/*
+ * @Author: Kane
+ * @Date: 2024-03-25 16:10:49
+ * @LastEditors: Kane
+ * @FilePath: /OnJava/src/main/java/org/kane/App.java
+ * @Description: 
+ * 
+ * Copyright (c) ${2023} by Kane, All Rights Reserved. 
+ */
 package org.kane;
 
+import java.math.BigInteger;
+
 /**
  * Hello world!
  *
@@ -8,6 +19,18 @@ public class App
 {
     public static void main( String[] args )
     {
+        BigInteger i = new BigInteger( "1233423453454354634565346", 10 );
+
+        int[] arrayI =
+        { 0, 0, 0, 1};
+
+        {int x = 0;}
+
+        {
+            int x=2;
+        }
+
+        System.out.println( i );
         System.out.println( "Hello World!" );
     }
 }

Spring学习/SpringLearning/.vscode/settings.json

@@ -1,4 +1,4 @@
 {
     "java.compile.nullAnalysis.mode": "automatic",
-    "java.configuration.updateBuildConfiguration": "interactive"
+    "java.configuration.updateBuildConfiguration": "automatic"
 }

Spring学习/SpringLearning/pom.xml

@@ -1,12 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.2.2</version>
+		<version>3.2.3</version>
-		<relativePath/> <!-- lookup parent from repository -->
+		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.cpic.xim</groupId>
 	<artifactId>SpringLearning</artifactId>
@@ -33,6 +34,21 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+
+		<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-core</artifactId>
+			<version>2.20.0</version>
+		</dependency>
+		<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-slf4j2-impl -->
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-slf4j2-impl</artifactId>
+			<version>2.20.0</version>
+			<scope>test</scope>
+		</dependency>
+
 	</dependencies>
 
 	<build>

Spring学习/SpringLearning/src/main/java/com/cpic/xim/SpringLearning/SpringLearningApplication.java

@@ -9,6 +9,8 @@
  */
 package com.cpic.xim.SpringLearning;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -18,6 +20,7 @@ import org.springframework.web.bind.annotation.RestController;
 @RestController
 public class SpringLearningApplication
 {
+	private static Logger logger = LoggerFactory.getLogger(SpringLearningApplication.class);
 	
 	public static void main( String[] args )
 	{
@@ -27,6 +30,8 @@ public class SpringLearningApplication
 	@GetMapping("/helloworld")
 	public String helloWorld()
 	{
+		logger.info("请求 hello world!!!!!!!!!");
+
 		return "<h1 style='color:red;'>Hello Spring!</h1>";
 	}
 

Spring学习/SpringLearning/src/main/resources/log4j2.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Configuration后面的status，这个用于设置log4j2自身内部的信息输出，可以不设置，当设置成trace时，你会看到log4j2内部各种详细输出。 -->
+<!-- monitorInterval：Log4j能够自动检测修改配置 文件和重新配置本身，设置间隔秒数。-->
+<Configuration status="WARN" monitorInterval="300">
+    <Appenders>
+        <Console name="Console" target="SYSTEM_OUT">
+            <PatternLayout charset="UTF-8" pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} ### %msg%n" />
+            <ThresholdFilter level="trace" onMatch="ACCEPT" onMismatch="DENY" />
+        </Console>
+        <RollingFile name="rolling_file_win" filename="./logs/桌面霸屏/app.log"
+            filePattern="./logs/桌面霸屏/logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
+            <PatternLayout>
+                <Pattern>[%t][%level][%d{HH:mm:ss.SSS}][%logger.%M{36}#%L] %msg%n</Pattern>
+            </PatternLayout>
+            <Policies>
+                <TimeBasedTriggeringPolicy interval="1" />
+                <SizeBasedTriggeringPolicy size="20MB" />
+                <DefaultRolloverStrategy max="20" />
+            </Policies>
+        </RollingFile>
+        <RollingFile name="rolling_file_linux" filename="/logs/桌面霸屏/app.log"
+            filePattern="/logs/桌面霸屏/logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
+            <PatternLayout>
+                <Pattern>[%t][%level][%d{HH:mm:ss.SSS}][%logger.%M{36}#%L] %msg%n</Pattern>
+            </PatternLayout>
+            <Policies>
+                <TimeBasedTriggeringPolicy interval="1" />
+                <SizeBasedTriggeringPolicy size="20MB" />
+                <DefaultRolloverStrategy max="20" />
+            </Policies>
+        </RollingFile>
+    </Appenders>
+    <Loggers>
+        <!-- <Logger name="mylog" level="info">
+            <AppenderRef ref="rolling_file" />
+        </Logger> -->
+        <Root level="debug">
+            <AppenderRef ref="rolling_file_linux" />
+            <AppenderRef ref="rolling_file_win" />
+            <AppenderRef ref="Console" />
+        </Root>
+    </Loggers>
+</Configuration>