初始化代码

.gitignore

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+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

pom.xml

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+<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.hlrj</groupId>
+    <artifactId>demo2</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>demo2</name>
+    <description>demo2</description>
+    <properties>
+        <java.version>1.8</java.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <spring-boot.version>2.6.13</spring-boot.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-redis</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>${spring-boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                    <encoding>UTF-8</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>${spring-boot.version}</version>
+                <configuration>
+                    <mainClass>com.example.demo.Demo2Application</mainClass>
+                    <skip>true</skip>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>repackage</id>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

src/main/java/com/example/demo/Demo2Application.java

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+package com.example.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Demo2Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Demo2Application.class, args);
+    }
+
+}

src/main/java/com/example/demo/demos/web/BasicController.java

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+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.demo.demos.web;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+/**
+ * @author <a href="mailto:chenxilzx1@gmail.com">theonefx</a>
+ */
+@Controller
+public class BasicController {
+
+    // http://127.0.0.1:8080/hello?name=lisi
+    @RequestMapping("/hello")
+    @ResponseBody
+    public String hello(@RequestParam(name = "name", defaultValue = "unknown user") String name) {
+        return "Hello " + name;
+    }
+
+    // http://127.0.0.1:8080/user
+    @RequestMapping("/user")
+    @ResponseBody
+    public User user() {
+        User user = new User();
+        user.setName("theonefx");
+        user.setAge(666);
+        return user;
+    }
+
+    // http://127.0.0.1:8080/save_user?name=newName&age=11
+    @RequestMapping("/save_user")
+    @ResponseBody
+    public String saveUser(User u) {
+        return "user will save: name=" + u.getName() + ", age=" + u.getAge();
+    }
+
+    // http://127.0.0.1:8080/html
+    @RequestMapping("/html")
+    public String html() {
+        return "index.html";
+    }
+
+    @ModelAttribute
+    public void parseUser(@RequestParam(name = "name", defaultValue = "unknown user") String name
+            , @RequestParam(name = "age", defaultValue = "12") Integer age, User user) {
+        user.setName("zhangsan");
+        user.setAge(18);
+    }
+}

src/main/java/com/example/demo/demos/web/PathVariableController.java

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+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.demo.demos.web;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+/**
+ * @author <a href="mailto:chenxilzx1@gmail.com">theonefx</a>
+ */
+@Controller
+public class PathVariableController {
+
+    // http://127.0.0.1:8080/user/123/roles/222
+    @RequestMapping(value = "/user/{userId}/roles/{roleId}", method = RequestMethod.GET)
+    @ResponseBody
+    public String getLogin(@PathVariable("userId") String userId, @PathVariable("roleId") String roleId) {
+        return "User Id : " + userId + " Role Id : " + roleId;
+    }
+
+    // http://127.0.0.1:8080/javabeat/somewords
+    @RequestMapping(value = "/javabeat/{regexp1:[a-z-]+}", method = RequestMethod.GET)
+    @ResponseBody
+    public String getRegExp(@PathVariable("regexp1") String regexp1) {
+        return "URI Part : " + regexp1;
+    }
+}

src/main/java/com/example/demo/demos/web/User.java

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+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.demo.demos.web;
+
+/**
+ * @author <a href="mailto:chenxilzx1@gmail.com">theonefx</a>
+ */
+public class User {
+
+    private String name;
+
+    private Integer age;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+}

src/main/resources/application.properties

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+# 应用服务 WEB 访问端口
+server.port=8080
+

src/main/resources/static/index.html

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+<html>
+<body>
+<h1>hello word!!!</h1>
+<p>this is a html page</p>
+</body>
+</html>

src/test/java/com/example/demo/Demo2ApplicationTests.java

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+package com.example.demo;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class Demo2ApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}