springboot2 第一章

README.md

@@ -1,4 +1,2 @@
 # spring-boot2
-- **chapter1：** 基于 spring-boot2.x 整合了 es 搜索
-- **chapter2：** 基于 spring-boot2.x 整合了 rabbitMQ，禁用默认ACK配置改为手动ACK，延迟队列消费
-- **chapter3：** 基于 spring-boot2.x 整合了 Redis
+- **chapter1：** 基于 spring-boot2.x 的 入门程序

chapter1/.gitignore

@@ -0,0 +1,49 @@
+.gradle
+/build/
+!gradle/wrapper/gradle-wrapper.jar
+gradle/
+# maven #
+target
+logs
+
+# eclipse #
+.settings
+.project
+.classpath
+.log
+
+# windows #
+Thumbs.db
+
+# Mac #
+.DS_Store
+
+# Package Files #
+*.war
+*.ear
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+.idea/
+overlays
+bin
+
+
+### NetBeans ###
+nbproject/private/
+build/
+nbbuild/
+dist/
+nbdist/
+.nb-gradle/

chapter1/pom.xml

@@ -1,62 +1,53 @@
 <?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"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://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>2.0.0.RELEASE</version>
-        <relativePath/>
-    </parent>
-    <groupId>com.battcn</groupId>
-    <artifactId>chapter1</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
-    <packaging>jar</packaging>
-    <name>battcn-boot</name>
-    <description>Demo project for Spring Boot</description>
-
-
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
-    </properties>
-
-
-    <dependencies>
-        <dependency>
-            <groupId>com.battcn</groupId>
-            <artifactId>spring-boot-starter-swagger</artifactId>
-            <version>1.4.4-RELEASE</version>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.data</groupId>
-            <artifactId>spring-data-elasticsearch</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>com.alibaba</groupId>
-            <artifactId>fastjson</artifactId>
-            <version>1.2.31</version>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-maven-plugin</artifactId>
-            </plugin>
-        </plugins>
-    </build>
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>com.battcn</groupId>
+	<artifactId>chapter1</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>chapter1</name>
+	<description>我的用第一个SpringBoot工程</description>
+
+	<!--版本采用的是最新的 2.0.1.RELEASE TODO 开发中请记得版本一定要选择 RELEASE 哦 -->
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.0.1.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<!-- 默认就内嵌了Tomcat 容器，如需要更换容器也极其简单-->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+		<!-- 测试包,当我们使用 mvn package 的时候该包并不会被打入,因为它的生命周期只在 test 之内-->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<!-- 编译插件 -->
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
 
 
 </project>

chapter1/src/main/java/com/battcn/Chapter1Application.java

@@ -0,0 +1,43 @@
+package com.battcn;
+
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Arrays;
+
+/**
+ * 我的第一个SpringBoot程序
+ * 其中 @RestController 等同于 （@Controller 与 @ResponseBody）
+ *
+ * @author Levin
+ */
+@RestController
+@SpringBootApplication
+public class Chapter1Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Chapter1Application.class, args);
+    }
+
+    @GetMapping("/demo1")
+    public String demo1() {
+        return "Hello battcn";
+    }
+
+    @Bean
+    public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
+        // 目的是
+        return args -> {
+            System.out.println("来看看 SpringBoot 默认为我们提供的 Bean：");
+            String[] beanNames = ctx.getBeanDefinitionNames();
+            Arrays.sort(beanNames);
+            Arrays.stream(beanNames).forEach(System.out::println);
+        };
+    }
+}

chapter1/src/main/resources/application.properties

@@ -0,0 +1,2 @@
+server.port=9090
+server.servlet.context-path=/chapter1

chapter1/src/test/java/com/battcn/Chapter1ApplicationTests.java

@@ -0,0 +1,41 @@
+package com.battcn;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.net.URL;
+
+import static org.junit.Assert.assertEquals;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+public class Chapter1ApplicationTests {
+
+
+    @LocalServerPort
+    private int port;
+
+    private URL base;
+
+    @Autowired
+    private TestRestTemplate template;
+
+    @Before
+    public void setUp() throws Exception {
+        // TODO 因为我们修改了 content-path 所以请求后面要带上
+        this.base = new URL("http://localhost:" + port + "/chapter1/demo1");
+    }
+
+    @Test
+    public void demo1() throws Exception {
+        ResponseEntity<String> response = template.getForEntity(base.toString(), String.class);
+        assertEquals(response.getBody(), "Hello battcn");
+    }
+}

chapter_n1/pom.xml

@@ -0,0 +1,62 @@
+<?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"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://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>2.0.0.RELEASE</version>
+        <relativePath/>
+    </parent>
+    <groupId>com.battcn</groupId>
+    <artifactId>chapter1</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>jar</packaging>
+    <name>battcn-boot</name>
+    <description>Demo project for Spring Boot</description>
+
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>1.8</java.version>
+    </properties>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>com.battcn</groupId>
+            <artifactId>spring-boot-starter-swagger</artifactId>
+            <version>1.4.4-RELEASE</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-elasticsearch</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+            <version>1.2.31</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+
+</project>

chapter_n4/src/main/java/com/battcn/MyClassLoaderTest.java

@@ -0,0 +1,18 @@
+package com.battcn;
+
+/**
+ * @author Levin
+ * @since 2018/4/18 0018
+ */
+public class MyClassLoaderTest {
+
+
+    public static void main(String[] args) {
+
+        final ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader();
+        System.out.println(systemClassLoader);
+
+    }
+
+
+}